30 Performance Marketing Agencies That Share Live Results on Their Portfolios

In the high-stakes world of performance marketing, "trust but verify" is the only mantra that matters. As we move through 2026, the gap between agencies that talk about growth and those that actually deliver it is widening. The following 30 agencies represent the global elite firms that don't just hide behind monthly PDF reports, but instead offer transparent portfolios, live case studies, and real-time data dashboards to prove their worth. From boutique growth shops to global powerhouses, these agencies are setting a new standard for accountability in digital advertising.

I’m Riten, founder of Fueler, a skills-first portfolio platform that connects talented individuals with companies through assignments, portfolios, and projects, not just resumes/CVs. Think Dribbble/Behance for work samples + AngelList for hiring infrastructure.

1. 9AM

9AM has quickly ascended to the top of the global performance rankings by managing over $250M in paid media with a surgical focus on profitability. They are famous for their "unified engine" approach, where creative strategy and data analytics live in the same room to ensure every ad is a winner. Their portfolio is a masterclass in transparency, showcasing how they scaled EVRY Jewels from $6M to a nine-figure powerhouse with a sustained 7X ROAS. They don't just show clicks; they show the direct correlation between their media buying and the client's bank balance growth.

2. WebFX

As a titan in the performance space, WebFX relies on their proprietary MarketingCloudFX technology to give clients a "god-view" of their entire sales funnel. They are one of the few agencies that publicly celebrates their milestone of driving over $3 billion in sales for their clients through a mix of SEO and hyper-targeted PPC. Their portfolio is unique because it often includes verified screenshots of lead growth and revenue surges directly from their tracking software. This level of openness has made them the go-to choice for mid-market companies that need enterprise-level data integrity.

3. SmartSites

SmartSites is a relentless conversion machine that focuses on the intersection of web design and aggressive paid search. They have earned over 1,000 five-star reviews by being incredibly vocal about their "Performance-First" methodology, where every design choice is dictated by data rather than ego. Their case studies are remarkably detailed, often breaking down the exact percentage lift in conversion rates following a site rebuild or a campaign restructure. For small to mid-sized businesses, SmartSites offers a rare look into the actual mechanics of scaling a local brand into a national contender.

4. Disruptive Advertising

Disruptive Advertising is built on the philosophy that most ad accounts are poorly managed, and they use their "Audit-First" approach to prove it. They are known for their radical honesty, often sharing the "before and after" data of accounts they have rescued from wasted spend and inefficient bidding. Their portfolio highlights their ability to improve lead quality while simultaneously lowering the cost-per-acquisition, often by as much as 50% within the first few months. They treat their clients like partners, providing a level of dashboard access that makes their performance impossible to fake.

5. Tinuiti

Tinuiti is one of the largest independent performance agencies in the US, known for their "Mobius" data platform, which unifies marketing data across Amazon, Google, and Meta. They excel at "Full-Funnel" performance, meaning they track a customer from their first high-level search to their final repeat purchase. Their public case studies often feature household names like Rite Aid and Etsy, detailing how they navigate complex privacy changes to maintain high-accuracy attribution. If you want to see how a multi-billion-dollar brand manages its digital shelf space, Tinuiti’s portfolio is the place to look.

6. Power Digital Marketing

Power Digital uses its proprietary "Nova" platform to provide what it calls "Predictable ROI" for their clients. They are a data-science heavy agency that looks at marketing through the lens of business consulting, ensuring that their growth strategies align with a company's actual inventory and labor capacity. Their portfolio is filled with "Growth Stories" that move beyond vanity metrics to discuss actual business transformation and market share expansion. They are particularly strong in the D2C space, where they have helped dozens of brands become category leaders through integrated media strategies.

7. KlientBoost

KlientBoost is widely regarded as having the most visually engaging and data-transparent portfolio in the agency world. They specialize in PPC and Conversion Rate Optimization (CRO), and they aren't afraid to show the "Winning vs. Losing" tests they run for their clients. Their "Boost" methodology is all about compounding small wins1% here, 5% thereto create massive revenue shifts over time. When you browse their case studies, you see the actual ad creative and the specific landing page tweaks that led to the results, giving you a clear blueprint of their success.

8. NP Digital

Founded by marketing icon Neil Patel, NP Digital brings a "Content + Performance" approach that few others can replicate. They are masters of organic search, but they use that SEO foundation to fuel high-velocity paid campaigns that convert at a much lower cost than their competitors. Their portfolio highlights their work with global enterprises, focusing on how they use data to find "pockets" of untapped demand in crowded markets. They are especially transparent about their international scaling efforts, showing how they navigate different languages and cultures to drive global performance.

9. MuteSix

MuteSix is a creative-led performance agency that believes the "ad is the strategy." They have a massive in-house production studio that churns out thousands of pieces of content, all designed to be tested and optimized for conversion. Their portfolio is a visual feast, showing the exact video ads that generated millions in revenue for brands like Disney and Petco. They are pioneers in the "Social Commerce" space, and their case studies provide deep dives into how they use TikTok and Instagram to turn viral moments into sustainable sales machines.

10. NoGood

NoGood is a "Growth Studio" that acts more like an in-house team than a traditional agency. They specialize in "Performance Branding," a hybrid approach that ensures a brand looks premium while still hitting aggressive customer acquisition targets. Their portfolio is exceptionally transparent about their "sprints"short, high-intensity testing periods where they rapidly identify the best channels for a brand's growth. They have a reputation for being the "secret weapon" for high-growth tech startups and SaaS companies that need to scale 10X without losing their brand identity.

11. Single Grain

Led by Eric Siu, Single Grain is a performance agency that lives on the cutting edge of AI and Web marketing. They are known for their "Content Sprouting" method, which turns a single piece of high-value content into a multi-channel performance engine. Their case studies often discuss the technical side of marketing, such as how they use custom scripts and automation to out-bid competitors in real-time auctions. For brands that want to be at the forefront of the next digital wave, Single Grain’s portfolio offers a glimpse into the future of automated growth.

12. Thrive Internet Marketing Agency

Thrive is a Dallas-based powerhouse that has built a global reputation for its data-driven approach to every facet of digital marketing. They are particularly strong in "Local-to-National" scaling, helping businesses dominate their local market before expanding their footprint across the country. Their portfolio is categorized by industry, making it easy to see their specific results in sectors like healthcare, home services, and e-commerce. They provide a level of reporting transparency that is rare for a full-service agency, ensuring that every "Like" and "Follow" is tied back to a tangible business lead.

13. promote

Wpromote calls themselves "The Challenger Agency" because they thrive on helping underdog brands take down industry giants. They use a "Performance Media" mindset to manage everything from search and social to programmatic and TV. Their portfolio highlights their ability to think outside the box, often using unconventional targeting or creative strategies to win in hyper-competitive categories. They are big believers in "First-Party Data," and their case studies often detail how they help brands build their own data ecosystems to reduce their reliance on platform algorithms.

14. Moburst

Moburst is a mobile-first performance agency that understands the "app-centric" world better than anyone else. They specialize in App Store Optimization (ASO) and mobile user acquisition, helping some of the world's most popular apps stay at the top of the charts. Their portfolio is focused on high-volume growth, showing how they have driven hundreds of millions of downloads for brands like Uber and Google. They are masters of "Redefining the Funnel" for the mobile screen, ensuring that every swipe and tap is optimized for maximum engagement and retention.

15. Social Beat

Social Beat is a leading performance agency in India that has become a global player by mastering the "D2C Scale" model. They are experts in using vernacular content in local languages to reach massive, untapped audiences that most agencies overlook. Their portfolio is a testament to the power of "Social Commerce," showing how they integrate WhatsApp and Instagram into a seamless buying journey. They are particularly transparent about their ROI benchmarks, providing clear data on how their campaigns impact the bottom line for retail and lifestyle brands.

16. Common Thread Collective

Common Thread Collective is the "Gold Standard" for DTC brands that prioritize net profit over top-line revenue. They are the creators of the "Marketing Efficiency Ratio" (MER), and they use this metric to guide every decision they make for their clients. Their portfolio is legendary for its transparency, often including deep-dive "Post-Mortems" of their campaigns where they discuss what worked, what didn't, and what they learned. If you are a founder who wants to understand the true financial health of your marketing, CTC is the agency you study.

17. Interactive Avenues

Interactive Avenues, a Reprise company, is a full-service performance agency that excels in "Omnichannel Media" management. They have a massive presence in the Asian market and are known for their ability to manage complex, multi-country campaigns for global enterprises. Their portfolio focuses on "Integrated Measurement," showing how they track the impact of digital ads on offline sales and brand sentiment. They are the agency for brands that need a high level of sophistication and a data-driven approach to global brand building.

18. F22 Labs

F22 Labs is a boutique performance agency that specializes in the fashion, apparel, and lifestyle sectors. They have built a reputation for having a "96% client retention rate" by acting as a true growth partner rather than a vendor. Their portfolio features impressive ROAS benchmarks often as high as 7.4X for footwear brands and they are very open about the specific creative strategies they use to hit those numbers. They are the ideal choice for small to mid-sized e-commerce brands that need high-touch, industry-specific expertise.

19. ROI Minds

Based in India but serving a global clientele, ROI Minds is a "results-only" agency that lives and breathes e-commerce. They are masters of Google Shopping and Meta Ads, and they focus entirely on scaling stores that have already found product-market fit. Their portfolio is a continuous feed of success stories, often detailing how they took a brand from $10k to $100k+ in monthly revenue within a single quarter. They are known for their "aggressive testing" culture and their willingness to share real-time screenshots of their ad dashboards to prove their performance.

20. AdLift

AdLift pairs high-level SEO with performance media to create a "Compounding Growth" effect for their clients. They understand that while paid ads provide immediate results, SEO builds long-term equity that lowers your overall customer acquisition cost over time. Their portfolio highlights this dual-threat approach, showing how they have achieved 40%+ lifts in non-brand conversions for major B2B and SaaS companies. They are a "consultative" agency that spends a lot of time educating their clients on the "why" behind their data-driven decisions.

21. Merkle

Merkle is a global leader in "Data-Driven Performance," focusing on CRM-driven journeys and first-party data integration. They are owned by Dentsu and have the resources to build custom marketing technology for the world's largest brands. Their portfolio is focused on "Personalization at Scale," showing how they use data to deliver the right message to the right person at the exact moment they are most likely to convert. For enterprise brands that need to navigate the "post-cookie" world, Merkle offers the most advanced solutions available.

22. FoxyMoron (Zoo Media)

FoxyMoron is a creative-led performance agency that specializes in "Creator-First" work for youth and lifestyle brands. They understand that modern customers want to be entertained, not just sold to, so they focus on building native content that people actually want to engage with. Their portfolio shows how this "Content-First" approach leads to lower CPMs and higher conversion rates than traditional performance ads. They are pioneers in "Shoppable Content," turning video views directly into sales through platform integrations.

23. WATConsult

WATConsult is an integrated digital agency that places performance at the core of everything they do. They are known for their "Full-Funnel" thinking, ensuring that their creative work is always backed by hard data and measurable KPIs. Their portfolio features a wide range of industries, from automotive to healthcare, showing their ability to adapt their performance strategies to different business models. They are particularly strong in "Remarketing and Retention," helping brands maximize the value of every customer they acquire.

24. Performics

Performics is the "Performance Marketing" arm of Publicis Groupe, and they operate in over 57 countries. They are experts in "Intent-Based Marketing," using data to understand what a customer is trying to achieve at any given moment. Their portfolio is built around "Omnichannel Results," showing how they coordinate search, social, and display ads to create a seamless path to purchase. They are the agency for global brands that need a highly standardized and data-driven approach to marketing performance across the world.

25. Madison Digital

Madison Digital is one of India's most respected independent agencies, known for its transparency and "no-nonsense" approach to media buying. They focus on "ROI-Led Planning," where every budget allocation is backed by a specific revenue forecast. Their portfolio highlights their work with major Indian retail and consumer goods brands, detailing how they use weekly "optimization sprints" to keep CAC under control. They are the agency for brands that want "big agency" results with the agility and transparency of a local partner.

26. Growth Hacker Digital

Growth Hacker Digital is a data-centric agency that has made a name for itself by delivering "Measurable ROI" for startups and tech brands. They use a proprietary analytics framework to track every single touchpoint in the customer journey, from the first ad view to the final referral. Their portfolio is exceptionally detailed, often showing how their campaigns have led to 20% increases in traffic and significant reductions in CPL for brands like Decathlon and ICICI Bank. They are a "human + machine" shop that uses AI to optimize their human-led strategies.

27. Kreative Machinez

Based in Kolkata, Kreative Machinez is a "Premier SEO and PPC" shop that has spent over 11 years mastering the art of digital growth. They are known for their "Transparent Reporting," providing clients with a level of insight into their search rankings and ad performance that is often hidden by other agencies. Their portfolio shows their work with over 180 local and international clients, focusing on how they use technical SEO to build a foundation for high-performing paid campaigns. They are the "reliable engine" for brands that need steady, predictable growth.

28. Oxedent

Oxedent is a "Performance Marketing Specialist" that focuses entirely on Google Ads and PPC for e-commerce brands. They are a small but mighty team that has won numerous awards for their "conversion-focused" approach to search marketing. Their portfolio is filled with case studies showing 3X to 5X improvements in account performance within just a few months of them taking over. They are particularly skilled at "Account Restructuring," finding the hidden inefficiencies in old ad accounts and turning them into profit machines.

29. Growth.cx

Growth.cx is the premier performance agency for B2B SaaS and Tech companies. They understand the "Long Sales Cycle" and the complexity of SaaS marketing better than almost anyone else, and they use this knowledge to drive high-quality leads that actually turn into customers. Their portfolio highlights their work with global tech brands, showing how they use content and paid media to build a "Predictable Pipeline" of revenue. They are a "Remote-First" team of experts who act as a fractional growth department for their clients.

30. Spray Marketing

Spray Marketing is a Brooklyn-based "Anti-Agency Agency" that prides itself on being agile, hands-on, and completely transparent. They were founded by industry veterans who were tired of "agency fluff," and they focus entirely on custom growth teams that deliver scalable results. Their portfolio is built around "Real Outcomes," such as a 57% reduction in CPA for healthcare brands or a 150% increase in conversion rates for e-commerce shops. They are the perfect choice for brands that want senior-level attention and a "results-only" mindset.

Final Thoughts

The common thread among these 30 agencies is a refusal to hide behind industry jargon. In 2026, the best agencies are those that treat their client's budget like their own, providing the data, tools, and transparency needed to prove every win. Whether you are a small startup or a global enterprise, choosing an agency with a "Transparent Portfolio" is the single best way to ensure your marketing budget is an investment, not an expense.

FAQs

1. What does it mean for an agency to have a "Live Results" portfolio?

It means the agency shares real-time data, verified screenshots, or frequently updated case studies that show actual performance metrics like ROAS, CPA, and revenue growth, rather than just vague "success stories."

2. Why is transparency so important in performance marketing?

Since performance marketing is based on specific actions (clicks, sales, leads), transparency ensures that the agency is actually driving those results efficiently and not just inflating vanity metrics like "impressions."

3. Do these agencies work with small budgets?

Some boutique shops like F22 Labs or Oxedent are more accessible to smaller brands, while global giants like Merkle and Tinuiti typically require six or seven-figure monthly spends.

4. How often should a performance agency update my results?

The best agencies provide 24/7 access to live dashboards, supplemented by weekly deep-dive reports and monthly strategic reviews to ensure the campaigns are always aligned with your business goals.

5. Can I see the actual ad creative in these portfolios?

Yes, many of the top-tier agencies like MuteSix and KlientBoost include the actual video and image assets in their case studies so you can see the "Magic" behind the "Logic."