18 Social Media Marketing Agencies with Publicly Documented Case Studies

In the high-stakes world of digital marketing, talk is cheap, but results are everything. As we navigate 2026, the era of "trust me" marketing is officially over, replaced by a demand for radical transparency and proven track records. When you are looking for a social media partner, the most valuable asset they can offer is not a flashy pitch deck, but a library of publicly documented case studies that show exactly how they moved the needle for brands just like yours. These 20 agencies don't just claim to be the best; they provide the receipts, showing the direct correlation between their creative strategies and their clients' bottom-line growth.

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1. Sculpt

Sculp is a social media agency that lives and breathes by the data found in its publicly available case studies. They focus on B2B and consumer tech, proving through documented success stories how they help brands find their "human" voice in complex industries. Their case studies are incredibly detailed, often breaking down the specific "before and after" metrics of engagement, lead quality, and community growth. They are the ideal partner for companies that need a strategic, no-nonsense approach to social media where every single post is backed by a proven framework for success.

• Detailed Metric Breakdown in Public Case Studies: Unlike agencies that hide their results, Sculpt publishes deep-dive reports showing exactly how they achieved massive spikes in LinkedIn engagement and qualified lead generation for their B2B clients over long-term campaigns.
• Specialized B2B Community Building Framework: They have a documented history of turning dry, technical brands into industry thought leaders by using data-backed storytelling that resonates with professional decision-makers and high-level stakeholders on social platforms.
• Transparent ROI Tracking and Attribution: Every case study they share highlights the direct link between social media activity and actual business revenue, ensuring that you can see the financial impact of their creative work before you ever sign a contract.
• Proven Paid Social Optimization Tactics: They showcase how they use A/B testing and audience segmentation to lower the cost-per-lead for their clients, providing clear evidence of their ability to manage large ad spends with surgical precision and total efficiency.
• Long-Term Client Retention Success Stories: Their public documentation proves their ability to grow with a brand over several years, demonstrating a consistent track record of adapting to algorithm changes while maintaining steady, reliable growth for their partners.

Why it matters

Sculpt’s commitment to public documentation means you aren't gambling with your marketing budget. By reviewing their past wins, you can identify the exact strategies they will use to scale your business, making the entire partnership predictable and highly profitable.

2. Lyfe Marketing

Lyfe Marketing is one of the most transparent agencies in the world, with a website filled to the brim with real-world results from small to mid-sized businesses. They specialize in social media management and advertising, proving through their case studies that you don't need a million-dollar budget to see a massive return on investment. Their documented success spans dozens of industries, from local e-commerce stores to service-based professionals, showing a consistent ability to drive traffic and sales. They are perfect for the "growth-focused" business owner who wants to see proof of performance across a wide variety of niches.

• Extensive Library of Small Business Success: They provide dozens of public case studies showing how they have taken "mom and pop" shops and turned them into digital powerhouses by using high-impact, low-cost social media advertising and organic posting strategies.
• Documented E-commerce Revenue Growth: Their case studies highlight specific examples of how they increased Shopify sales for their clients by over 300% through the strategic use of Facebook and Instagram ads paired with high-converting creative assets.
• Proven Low-Cost Lead Generation: Lyfe Marketing shows exactly how they generate high-quality leads for service-based businesses for just a few dollars each, providing the actual ad copy and targeting data that led to those successful results in their public reports.
• Transparent Multi-Channel Integration: They document how they sync social media efforts with email marketing and SEO to create a unified growth machine, showing you the total impact of an integrated digital marketing strategy on a brand's health.
• Real Client Testimonials and Video Proof: Beyond just numbers, their case studies include video interviews with business owners who discuss their growth journey, providing a human element to the data that builds immense trust and credibility.

Why it matters

Lyfe Marketing proves that digital growth is accessible to everyone. Their public case studies act as a roadmap for success, showing you exactly how they can take a modest budget and turn it into a significant revenue stream through consistent, data-backed execution.

3. Disruptive Advertising

Disruptive Advertising is a results-only agency that is so confident in its work they make their performance data a central part of its brand identity. Their case studies focus heavily on the "Disruptive" mindsetfinding the hidden opportunities in a market that others are missing. They document their process of auditing accounts, finding wasted spend, and redirecting those funds into high-performing social ads. They are a top choice for brands that feel like they have hit a "plateau" and need a documented expert to come in and break through to the next level of growth.

• Waste Identification and Budget Reclaiming: Their case studies detail how they save clients thousands of dollars every month by identifying "bleeding" ad campaigns and reinvesting that money into high-engagement social content that actually drives a return.
• Deep-Dive Account Auditing Documentation: They show you the exact audit process they use to find flaws in your current social strategy, providing public examples of how their technical findings led to immediate improvements in click-through rates and sales.
• Proven Scale-Up Strategies for High Growth: Disruptive Advertising documents how they take brands from five-figure to seven-figure monthly ad spends on social media without losing efficiency, proving their ability to manage massive scale with total control.
• Advanced Multi-Touch Attribution Modeling: Their case studies explain how they track a customer across every social platform, showing you the "true" path to purchase and ensuring that every dollar spent is credited to the right marketing action.
• High-Impact Creative Testing Results: They share the data behind their creative experiments, showing which images, videos, and headlines outperformed the competition and why those specific elements led to a higher conversion rate for their clients.

Why it matters

Disruptive Advertising removes the "smoke and mirrors" from social media management. Their public case studies show a relentless focus on efficiency and profit, making them the ideal partner for businesses that need to see a clear, documented path to a higher ROI.

4. Firebelly Marketing

Firebelly Marketing is a boutique agency that specializes in making brands "craveable." Their public case studies are a masterclass in creative storytelling and influencer integration. They document how they take everyday consumer products and turn them into social media sensations by finding the "hook" that makes people want to engage. Their work is highly visual and aesthetic, but their case studies prove that there is a deep, data-driven strategy behind every pretty picture. They are the perfect fit for food, beverage, and lifestyle brands that want documented proof of high-level brand awareness and engagement.

• Viral Campaign Execution Documentation: Firebelly shares the specific steps they took to make a brand go viral on TikTok and Instagram, providing the metrics on reach, shares, and mentions that prove their ability to capture the public's imagination.
• Documented Influencer Partnership ROI: They show exactly how they select, vet, and manage influencer collaborations to ensure they aren't just getting "likes" but are actually driving brand trust and measurable increases in retail sales for their clients.
• Proven Organic Community Growth Tactics: Their case studies highlight how they build loyal brand communities from scratch without relying solely on paid ads, proving the power of consistent, high-quality engagement and brand-voice development.
• Creative Pivot Success Stories: They document instances where a brand's social presence was failing and show how they completely reimagined the creative direction to align with modern consumer trends and drive a massive resurgence in popularity.
• Specific Sentiment Analysis Reporting: Firebelly goes beyond basic numbers to show how they improved the "vibe" around a brand, providing data-backed evidence of increased positive mentions and customer satisfaction across all social channels.

Why it matters

Firebelly Marketing proves that creativity can be measured. Their case studies show you how to build a brand that people actually love and talk about, providing a documented blueprint for turning a standard product into a social media powerhouse.

5. Sociallyin

Sociallyin is a strategy-first agency that provides some of the most comprehensive case studies in the industry. They cover everything from content production and community management to paid media and influencer marketing. Their public documentation is unique because it often includes the "brief" and the "solution," showing you the creative thinking that led to the final result. They are an excellent partner for medium to large companies that need a documented, all-in-one social media solution that handles every aspect of their digital presence with professional precision.

• End-to-End Campaign Lifecycle Documentation: Sociallyin shares the entire journey of a campaign, from the initial strategic discovery sessions to the final performance report, giving you a transparent look at how they manage your brand's growth.
• Cross-Platform Content Strategy Proof: Their case studies demonstrate how they tailor content for different platforms like LinkedIn, Instagram, and Pinterest, showing the specific engagement metrics that prove their platform-specific expertise.
• Proven Crisis Management Success: They document how they have helped brands navigate difficult social media PR situations, providing the data on how they restored brand reputation and turned negative sentiment into positive engagement.
• Detailed Influencer Management Workflows: They share their internal process for finding and managing the right creators, providing case studies that show the high ROI achieved through these data-backed, high-impact influencer collaborations.
• Technical Social Media Audit Results: Sociallyin provides public examples of their technical audits, showing how they identified and fixed backend issues on social platforms to improve organic reach and ad delivery for their clients.

Why it matters

Sociallyin offers total transparency in their creative and strategic process. By reviewing their case studies, you can see the high level of thought and effort that goes into every single project, ensuring you are partnering with an agency that truly understands the "art and science" of social media.

6. Ignite Social Media

Ignite Social Media is often called "the original social media agency," and their library of case studies reflects over a decade of industry-leading work. They focus on big-picture strategy for world-class brands, documenting how they have managed the social presence of household names through shifting digital landscapes. Their case studies are highly academic and data-rich, providing deep insights into consumer behavior and platform evolution. They are the go-to agency for enterprise brands that need a documented partner with the experience to handle massive scale and high-stakes marketing challenges.

• Enterprise-Level Strategy Documentation: They share how they manage the social presence for Fortune 500 companies, showing the complex workflows and high-level reporting required to keep a global brand consistent and engaging across dozens of regions.
• Proven Longevity and Adaptation Proof: Their case studies span over a decade, showing how they have successfully pivoted their clients' strategies through every major algorithm update and platform shift since the early days of social media.
• Deep Consumer Insight Reports: Ignite publishes documented research on how different demographics interact with social media, showing how they use this data to craft high-impact campaigns that resonate with specific target audiences.
• Multi-Million Dollar Ad Spend Management: They provide proof of their ability to manage massive social media budgets with total efficiency, showing the documented ROI and scale achieved for some of the world's most recognizable brands.
• Influencer Strategy for Global Brands: Their case studies show how they coordinate massive influencer networks to drive global brand awareness, providing data on reach and sentiment that proves the success of these large-scale partnerships.

Why it matters

Ignite Social Media provides the security of experience. Their publicly documented case studies prove that they have seen it all and can handle anything, making them the most reliable choice for brands that cannot afford a single mistake in their social media strategy.

7. Rainfactory

Rainfactory is a growth marketing agency that specializes in "Product Launches" and Crowdfunding. Their case studies are legendary in the tech and startup world, documenting how they have helped brands raise millions of dollars through high-impact social media campaigns. They provide the exact "pre-launch" and "launch" strategies that led to their biggest wins, showing you the data on lead acquisition, email open rates, and direct sales. They are the perfect partner for any brand that is launching a new product and needs a documented "launchpad" to ensure immediate success.

• High-Impact Product Launch Documentation: They share the step-by-step social media strategies they used to launch products that went on to raise millions on Kickstarter and Indiegogo, providing the specific metrics on traffic and conversion.
• Proven Lead Acquisition Systems: Their case studies show how they use social media to build massive "pre-launch" email lists of high-intent buyers, ensuring that a brand has a line of customers waiting to buy the moment they launch.
• E-commerce Scaling Success Stories: Rainfactory documents how they take a successful product launch and turn it into a sustainable, long-term e-commerce business through continued, data-backed social media advertising and organic growth.
• Advanced Social Media Funnel Design: They provide public examples of the "funnels" they build to move users from a simple social media ad to a final purchase, showing the conversion rates at every single step of the customer journey.
• Influencer and PR Integration Proof: Their case studies show how they use influencers and media coverage to boost the credibility of a new product, providing the data on how this social proof leads to higher trust and more sales.

Why it matters

Rainfactory turns a product launch into a science. Their public case studies provide a proven blueprint for success, showing you exactly how to build hype, capture leads, and drive massive sales for your new product through the power of social media.

8. Thrive Internet Marketing Agency

Thrive is a full-service digital agency with a massive library of social media case studies that emphasize the power of "Integration." They document how they have helped businesses in almost every industryfrom healthcare to constructionby making social media a central part of their overall marketing strategy. Their case studies are very focused on the "Bottom Line," showing how social media engagement leads to phone calls, form fills, and actual revenue. They are the ideal choice for business owners who want a straightforward, data-driven partner that treats social media as a serious business tool.

• Cross-Industry Performance Documentation: Thrive provides public case studies for businesses in almost every niche imaginable, proving that their data-backed social media strategies work regardless of what you are selling or who you are targeting.
• Documented Lead Generation Growth: They show the exact numbers on how they increased monthly leads for their clients by over 500% through the strategic use of social media management and hyper-targeted advertising campaigns.
• Proven ROI on Social Ad Spend: Their case studies detail the specific "Return on Ad Spend" (ROAS) achieved for their clients, showing you the documented profit generated for every dollar invested in social media marketing.
• Transparent Communication and Reporting Proof: They share examples of the monthly reports they provide to their clients, showing the high level of detail and transparency you can expect when you partner with their team of experts.
• Integrated Digital Marketing Success Stories: Thrive documents how they use social media to support SEO and PPC efforts, showing the "compounding effect" that an integrated marketing strategy has on a brand's overall growth and profitability.

Why it matters

Thrive takes the "mystery" out of digital marketing. Their public case studies show a relentless focus on results and transparency, making them the most practical and reliable choice for any business that needs to see a clear, documented path to growth through social media.

9. WebFX

WebFX is a digital marketing juggernaut that has arguably the most extensive collection of public case studies in the entire industry. They have a dedicated "results" section that tracks everything from phone calls generated to total revenue driven for their clients in real-time. Their documentation proves their ability to handle both local social media management and massive, national-scale ad campaigns with equal efficiency. They are the ideal partner for businesses that want a high-tech, data-first approach where every single cent of their social media budget is tracked and optimized for maximum business impact.

• Proprietary MarketingCloudFX Integration: Their case studies highlight how they use their custom AI software to track social media interactions and link them directly to sales closed in a client's CRM, providing 100% transparent attribution for every campaign.
• Massive Multi-Industry Success Library: They provide publicly documented wins for over 150 different industries, proving that their systematic approach to social media engagement and advertising works for everyone from plumbers to enterprise software companies.
• Documented Billions in Client Revenue: WebFX is one of the few agencies that publicly tracks the total revenue they have generated for their clients, providing a level of "big picture" proof that few competitors can match in the current market.
• Verified Social Ad Spend Efficiency: Their case studies show exactly how they have lowered the cost-per-click while increasing lead quality for their clients, providing the specific targeting and bidding strategies they used to win in competitive markets.
• Real-Time Client Performance Dashboards: They showcase the dashboards their clients use, proving that they provide constant, 24/7 visibility into campaign performance rather than just sending a vague PDF report at the end of every month.

Why it matters

WebFX proves that scale and transparency can go hand-in-hand. By reviewing their massive library of results, you can find a case study that matches your exact business model, giving you a clear picture of what success will look like before you even start.

10. Blue Corona

Blue Corona is an agency that focuses on "measuring what matters." Their public case studies are a masterclass in lead generation, particularly for service-based businesses and home services. They document their process of turning a brand’s social media channels into "virtual sales reps" that work around the clock to capture inquiries and book appointments. They are incredibly open about their failures as well as their successes, showing how they pivot strategies when data suggests a change is needed. This radical honesty makes them one of the most trusted partners for businesses that care about the bottom line.

• Phone Call Tracking and Social Attribution: Their case studies document how they track social media users who eventually call a business, providing proof that their social strategy is driving real-world conversations and not just digital vanity metrics.
• Proven Local Market Domination Tactics: They show how they use geo-targeted social ads to help local businesses outrank national competitors in their specific service areas, providing the data on local reach and conversion to back it up.
• Detailed Conversion Rate Optimization (CRO): Blue Corona documents how they tweak social media landing pages to ensure that the traffic they drive actually converts into a lead, proving their expertise in the entire customer journey.
• Documented Cost-Per-Lead Reductions: They share specific examples of how they reduced the cost-per-lead for their clients by over 40% through better audience segmentation and more persuasive, data-backed creative content on social platforms.
• Transparent Competitor Analysis Reports: Their public documentation often includes how they researched a client's competitors to find an "unfair advantage," showing the strategic thinking that goes into every social media campaign they launch.

Why it matters

Blue Corona is for the business owner who wants results they can hearlike the phone ringing. Their case studies prove that social media can be a direct driver of service appointments and high-value contracts when managed with a lead-gen mindset.

11. Social Media 55

Social Media 55 is a full-service agency that prides itself on being "The Nano-Targeting Experts." Their case studies focus heavily on the hospitality, real estate, and healthcare sectors, documenting how they use hyper-specific audience targeting to reach the exact people most likely to convert. They provide clear documentation of their "Influencer Management" process, showing how they pair local Miami or Chicago businesses with creators who have a genuine connection to that city. They are a great choice for brands that need a high-touch, personalized social strategy that feels like it was built by a local expert.

• Hyper-Local Targeting Success Stories: Their case studies show how they use minute-by-minute location data to serve social ads to people near a client's business, proving their ability to drive immediate foot traffic and local brand awareness.
• Proven High-End Real Estate Growth: They document how they have helped luxury real estate brands sell multi-million dollar properties through high-impact Instagram and Facebook video tours and targeted social lead-generation forms.
• Documented Healthcare Compliance and Growth: Social Media 55 shows how they manage social media for medical practices while staying HIPAA compliant, providing the data on patient acquisition and community trust that proves their specialized expertise.
• Nano-Influencer Collaboration Results: Their public reports highlight how they use "smaller" creators to drive higher engagement rates than celebrity influencers, providing the ROI data that proves the value of niche, highly-engaged communities.
• Creative Visual Identity Transformations: They share "before and after" examples of a brand's social media aesthetic, documenting how a professional visual refresh led to a measurable increase in organic follower growth and brand prestige.

Why it matters

Social Media 55 proves that "niche" is the new "mass." Their case studies show you how to dominate a specific local market or industry by using highly targeted, highly personal social media tactics that build deep roots in your community.

12. Mainstreet Host

Mainstreet Host is an agency that has been around for over 25 years, and their case study library is a testament to its ability to evolve. They focus on "The Long Game," documenting how they build sustainable social media growth for brands that aren't just looking for a quick win but want a permanent digital legacy. Their public reports are easy to read and focus on "High-Intent" traffic, showing how they use social media to find people who are ready to buy right now. They are a reliable, stable partner for any brand that wants a documented path to consistent, month-over-month growth.

• Decades of Documented Growth Data: They provide a long-term view of social media success, showing how they have maintained and grown a client's digital presence through multiple platform updates and changing consumer trends over several years.
• Proven High-Intent Traffic Generation: Their case studies highlight how they use social media to drive traffic to specific "buy now" pages on a client's website, providing the data on conversion rates that prove their sales-first mindset.
• Scalable Social Media Management Workflows: They document how they manage the social presence for brands with dozens of locations, proving their ability to maintain brand consistency and high-quality engagement at a massive scale.
• Transparent Content Performance Analysis: Mainstreet Host shares the data on which types of posts (video, image, or text) drove the most engagement for their clients, showing you the exact content mix they use to win in different industries.
• Integrated SEO and Social Reach Proof: They document how their social media activity improves their clients' organic search rankings, proving the "hidden" value of a strong social presence on a brand's overall digital visibility and authority.

Why it matters

Mainstreet Host offers the "wisdom of age" with the tools of the future. Their case studies prove that they know how to build a brand that lasts, providing a documented strategy for sustainable growth that won't disappear when the next trend dies.

13. Brenton Way

Brenton Way is a Los Angeles-based agency with a huge global reach that uses a proprietary "Marketing Dashboard" to give its clients total visibility. Their case studies are highly technical and focus on "User Acquisition," documenting how they use AI and machine learning to find new customers on social media at the lowest possible cost. They are very open about their "Growth Hacking" tactics, showing you the creative experiments they run to find high-performing ad combinations. They are the perfect partner for startups and e-commerce brands that need to grow fast and have the data to prove it.

• AI-Driven Audience Discovery Reports: Their case studies highlight how they use machine learning to find "hidden" audience segments on social media that their clients' competitors are completely missing, leading to lower ad costs and higher ROI.
• Documented Growth Hacking Experiments: They share the results of their creative A/B tests, showing how small changes in ad copy or imagery led to a massive 200% to 300% increase in conversion rates for their high-growth clients.
• Full-Funnel Social Attribution Proof: Brenton Way documents the entire customer journey from the first social media click to the final purchase, providing the data that proves the value of every single touchpoint in the marketing process.
• Proven User Acquisition for Mobile Apps: They showcase how they have helped mobile apps gain thousands of new users through targeted TikTok and Instagram ad campaigns, providing the data on "App Installs" and "User Retention" that matters.
• Transparent Budget Allocation Strategies: Their public documentation shows how they shift budgets in real-time between different social platforms based on performance data, proving their commitment to maximizing every dollar of their client's investment.

Why it matters

Brenton Way is for the brand that wants to move at the speed of light. Their case studies provide a documented roadmap for rapid growth, showing you how to use the latest technology to outpace your competition and dominate your market through smart, data-led social media.

14. Moburst

Moburst is a global agency that specializes in "Mobile Growth," and their case studies are some of the most impressive in the app and tech world. They document how they have helped some of the biggest apps in the worldlike Uber and Redditgrow their social presence and user base through high-impact creative and data-backed targeting. Their public reports focus heavily on "The First Impression," showing how they use social media to drive app downloads and immediate user engagement. They are the go-to agency for any brand that lives on a smartphone and needs a documented expert to drive mobile growth.

• Enterprise-Level App Growth Success: They share case studies from some of the world's most recognizable mobile brands, documenting how they used social media to drive millions of new app installs and high-value user actions globally.
• Proven Social-to-App Conversion Funnels: Moburst documents how they create seamless "Deep-Link" experiences that take a user from a social media ad directly into a specific feature of an app, providing the data on "In-App Conversion" that matters.
• High-Impact Global Influencer Campaigns: Their case studies highlight how they coordinate international influencer networks to drive global app launches, providing the reach and download metrics that prove the success of these massive campaigns.
• Detailed App Store Optimization (ASO) Synergy: They document how their social media campaigns improve a brand's visibility in the App Store, proving the integrated value of a social strategy on a brand's overall mobile health and discoverability.
• Data-Backed Creative Asset Testing: Moburst shares the performance data for their social media ad creative, showing which visual styles and messaging themes drive the lowest "Cost Per Install" for their mobile-first clients.

Why it matters

Moburst proves that the future is mobile. Their case studies provide a documented blueprint for app success, showing you how to capture the attention of smartphone users and turn them into loyal, long-term customers through the power of high-impact social media.

15. Kuno Creative

Kuno Creative is an inbound marketing agency that views social media as a "Lead Magnet." Their case studies are highly educational and document how they use social media to support long-term content strategies for B2B and healthcare brands. They focus heavily on "The Buyer's Journey," showing how they use social media to move potential customers through the "Awareness, Consideration, and Decision" stages. They are a great choice for brands that have a high-value product or service and need a documented strategy for building trust and authority over a long sales cycle.

• B2B Thought Leadership Documentation: They share how they use social media to establish brand executives as industry experts, providing the data on LinkedIn engagement and professional reach that proves the impact of their "Expert Voice" strategy.
• Proven Long-Cycle Lead Generation: Their case studies document how they use social media to nurture leads over several months, providing the data on "Lead-to-Customer" conversion that is critical for high-ticket B2B and healthcare services.
• Inbound Marketing and Social Synergy: Kuno Creative documents how they use social media to drive traffic to their "Gate Content" (like whitepapers and webinars), providing the metrics on form fills and qualified leads that prove their strategy's value.
• Detailed Healthcare Patient Journey Reports: They show how they use social media to educate patients and drive them to book appointments, providing the data on "Patient Acquisition Cost" that matters for medical practices and health systems.
• Transparent Campaign Planning and Execution: Their public reports often include the actual "Content Maps" they use for their clients, showing you the strategic logic behind every social media post and ad they create.

Why it matters

Kuno Creative is the agency for the "sophisticated" brand. Their case studies prove that social media can be a powerful tool for building authority and trust, providing a documented roadmap for winning in industries where the sales process is long and complex.

16. Volume Nine

Volume Nine is a "no-nonsense" agency based in Denver with a heavy presence in the Dallas and Miami markets. Their case studies focus on "Social Search," documenting how they help brands get discovered by people who are actively looking for their products or services. They are experts at "Social SEO," and their public reports show how they use keywords and trending topics to boost a brand's organic visibility on platforms like Instagram and TikTok. They are a perfect fit for e-commerce and retail brands that need a documented strategy for getting their products in front of the right buyers at the right time.

• Social Search & Discoverability Proof: Their case studies document how they optimized their clients' social profiles to show up in "Explore" and "For You" pages, providing the data on organic reach and new follower acquisition that proves their SEO expertise.
• Proven E-commerce Sales Growth: Volume Nine shares the specific revenue results they achieved for retail brands through social media management and advertising, providing the "Return on Investment" data that makes a business owner's heart beat faster.
• Detailed Content Audits and Strategy Refresh: They document how they have taken "stale" social accounts and revitalized them with new, data-backed content strategies, showing the immediate spike in engagement and traffic that followed their intervention.
• Transparent Social Ad Bidding and Targeting: Their public reports show the exact audience segments they targeted for their clients' social ads, providing the "Cost Per Acquisition" metrics that prove their media-buying efficiency.
• Authentic Influencer and UGC Results: They document how they use real customer reviews and User-Generated Content (UGC) to drive social media engagement, providing the data on "Trust and Conversion" that proves the value of authentic storytelling.

Why it matters

Volume Nine proves that social media is a search engine. Their case studies provide a documented blueprint for getting your brand discovered by high-intent buyers, ensuring that your social presence is a constant source of new leads and sales.

17. Power Digital Marketing

Power Digital is a massive, full-service agency that uses a proprietary platform called "nova" to analyze brand performance across the entire digital ecosystem. Their case studies are incredibly high-level and document how they use "Data Interconnectivity" to drive growth. They show how social media data can be used to improve email marketing and how search data can be used to improve social media creative. They are the ideal choice for large brands that want a documented "growth partner" that looks at the entire business, not just a single social channel.

• Interconnected Data Attribution Proof: Their case studies highlight how they use their "nova" platform to show how a social media post today leads to an email signup tomorrow and a purchase next week, providing a level of attribution few can match.
• Proven Multi-Channel Brand Growth: Power Digital documents how they have helped brands grow from 8-figure to 9-figure revenue through integrated social media and digital marketing strategies, proving their ability to manage massive scale.
• Detailed Creative and Brand Audits: They share the "Creative Scores" they give to their clients' content, documenting how improving the quality of social media visuals and messaging leads to a direct increase in ad performance and organic reach.
• Enterprise-Level Influencer Coordination: Their case studies show how they manage hundreds of influencers simultaneously for a single brand, providing the documented data on "Total Brand Reach" and "Customer Acquisition" that proves their scale.
• Transparent Strategic Roadmaps: Their public documentation often includes the "Growth Roadmap" they build for their clients, showing you the exact steps they will take over 6, 12, and 18 months to achieve your business goals.

Why it matters

Power Digital is the agency of the future. Their case studies prove that in 2026, the brands that win are the ones that connect all their data points together, providing a documented strategy for total digital domination.

18. Perfect Search Media

Perfect Search Media is a Chicago-based agency that treats social media with the precision of a search engine specialist. Their case studies focus heavily on "Performance Social," documenting how they use A/B testing and data analysis to find the "perfect" combination of creative and targeting. They are extremely transparent about their testing process, showing you the "winners" and "losers" of their creative experiments. They are the perfect partner for any brand that wants a documented, scientific approach to social media advertising where every decision is backed by a statistical "reason to believe."

• Rigorous A/B Testing Documentation: They share the results of their social ad tests, showing how they systematically improved click-through rates and lowered costs by testing different images, videos, headlines, and call-to-action buttons.
• Proven B2B and Education Sector Growth: Their case studies document how they have helped universities and corporate service providers generate high-quality leads through targeted LinkedIn and Facebook ad campaigns, providing the "Cost Per Lead" metrics.
• Detailed Social Media Audit Success Stories: Perfect Search shows how they identified "low-hanging fruit" in a client's social strategy, providing public examples of how small technical tweaks led to a massive increase in campaign efficiency and ROI.
• Transparent Multi-Platform Data Syncing: They document how they use data from Google Search to inform their social media ad targeting, proving the value of a holistic, data-driven approach to digital marketing and advertising.
• High-Impact Social Ad Copywriting Proof: Their case studies share the specific ad copy that performed best for their clients, providing the documented "Conversion Data" that proves their ability to write messages that move people to action.

Why it matters

Perfect Search Media takes the "art" out of social media and replaces it with "science." Their case studies provide a documented blueprint for performance marketing, ensuring that your social media ads are always optimized for the highest possible return on investment.

Final Thoughts

Choosing a social media partner is one of the most important business decisions you will make. By focusing on agencies with publicly documented case studies, you are ensuring that your brand is in the hands of proven experts who aren't afraid to be held accountable for their results. The 20 agencies mentioned in this guide represent the gold standard of transparency and performance in 2026. Take the time to dive into their public records, look at their "Proof of Work" on platforms like Fueler, and choose the partner that has a documented history of helping brands just like yours reach the top of their industry.

FAQs

1. Why are publicly documented case studies so important when choosing an agency?

Case studies act as "social proof" and a roadmap. They show that an agency has successfully solved problems similar to yours and can provide the specific data to back up their claims. This reduces your risk and ensures you are hiring a partner with a proven ability to deliver a return on your investment.

2. What metrics should I look for in an agency's case studies?

Don't just look for "likes" or "followers." Look for metrics that impact your business, such as Conversion Rate, Cost Per Lead (CPL), Return on Ad Spend (ROAS), and Customer Acquisition Cost (CAC). A good agency will always tie social media activity back to these bottom-line financial results.

3. Can a new agency be successful if it doesn't have many public case studies yet?

A new agency can be very talented, but they should still be able to show "Proof of Work" through personal projects or past experience. If they don't have agency-level case studies yet, look for their team members' individual portfolios on platforms like Fueler to verify their skills and past results.

4. How often should an agency update its public case studies?

Social media changes fast, so look for case studies that are from the last 6 to 12 months. This ensures that the agency's strategies are up-to-date with current platform algorithms and consumer behaviors, which is critical for your brand's success in 2026.

5. Is it better to choose an agency that specializes in my specific industry?

While specialized agencies have a "shorthand" for your market, generalist agencies with strong case studies across many industries often bring more innovative ideas. The most important factor is their documented ability to drive results, regardless of the specific niche they are working in.

What is Fueler Portfolio?

Fueler is a career portfolio platform that helps companies find the best talent for their organization based on their proof of work. You can create your portfolio on Fueler. Thousands of freelancers around the world use Fueler to create their professional-looking portfolios and become financially independent. Discover inspiration for your portfolio

Sign up for free on Fueler or get in touch to learn more.