Top 10 Paid Media Agencies in the USA (2026)
The top 10 paid media agencies in the USA for 2026, ranked by Growth Partner Confidence Score with cited public evidence for every pick.
Updated July 23, 2026 · Compiled and reviewed by Growth Partner Index Editorial Desk
Every paid media agency in America will tell you they drive ROAS. The honest ones will also tell you what ROAS means, which is harder than it sounds. The shops on this list earn their place by doing the unglamorous half of the job. Running incrementality tests, building out media mix models, wiring up clean-room attribution. So that when the dashboard says a campaign worked, it actually did.
We pulled the highest-scoring US agencies from the Growth Partner Index's Paid Media & Performance Marketing category and ranked them by Confidence Score. Each pick is built on public evidence: case studies, podcast appearances, press, the occasional candid LinkedIn post. The seven pillars behind the score. Outcomes, category fit, creative-media integration, reputation, operating maturity, buyer fit, and freshness. Are visible on every profile.
Treat the list as a starting point, not a verdict. The agencies that look great on paper still need to clear your specific bar on budget, named senior operators, and what you can actually measure once a campaign is in market.
The shortlist
Ranked by Growth Partner Confidence Score
- 1
9AM is a performance marketing agency specializing in media buying, creative strategy, and influencer marketing to drive profitable growth for DTC brands.
Full profileVisit website$250k–$1M/mo
- 2
Compound Growth publishes case work spanning paid and CRM with disclosed retention and LTV outcomes.
Full profileVisit website$250k–$1M/mo
- 3
Croud is an independent global media, creative, and data agency founded in 2011 with 600+ in-house experts, offices in London, New York, and Dubai, and named case studies including a 55% enquiry increase for IWG and 35% ROAS lift for MPB.
Full profileVisit website$50k–$250k/mo
- 4
Acadia is a modern digital agency specializing in retail media, paid media, SEO, and performance creative, recognized as Ad Age's 2024 Performance Marketing Agency of the Year.
Full profileVisit website$1M+/mo
- 5
KlientBoost is a performance marketing agency specializing in PPC, CRO, SEO, and email marketing to drive measurable ROI for SaaS, ecommerce, and B2B brands.
Full profileVisit website$250k–$1M/mo
- 6
Thrive Internet Marketing Agency is a 160+ person full-service digital marketing agency headquartered in Arlington, TX, founded in 2005, with named case studies including a 750-patient orthopedic group and a 40% loan-volume lift for Brazos Higher Education.
Full profileVisit website$10k–$50k/mo
- 7
Wpromote is a recognized performance marketing agency that integrates strategy, media, creative, and data to drive measurable business outcomes.
Full profileVisit website$250k–$1M/mo
- 8
Major Tom is a 65-person full-service marketing agency founded in 2000, with teams in Vancouver, Toronto, and New York running integrated paid media, SEO/AEO, analytics, and web programs.
Full profileVisit website$50k–$250k/mo
- 9
Metric Theory is a performance digital marketing agency specializing in paid search, social advertising, programmatic, and Amazon advertising for B2B and eCommerce clients.
Full profileVisit website$1M+/mo
- 10
Brighter Click is a data-driven digital marketing agency based in Raleigh, NC, specializing in paid media, creative strategy, and go-to-market execution for eCommerce and SaaS businesses.
Full profileVisit website$10k–$50k/mo
How we picked
We rank agencies tagged to the paid-media category by their Growth Partner Confidence Score. Scores reflect public evidence and disclosed methodology. Not pay-to-play. Sponsored placements never influence ranking.
Read the full Growth Partner Confidence Score methodology, or submit a correction if something here is wrong.
Frequently asked questions
- Who is the #1 paid media agency in the USA in 2026?
- 9AM ranks #1 among paid media agencies in the USA for 2026 with a Growth Partner Confidence Score of 82/100. 9AM is based in New York, NY and is best suited to dtc and ambitious brands seeking profitable growth. Compound Growth (80/100) ranks second.
- How were these agencies selected?
- Every agency on this list is scored against the same seven-pillar Growth Partner Confidence Score: proof of outcomes, category fit, creative-media integration, reputation, operating maturity, buyer fit, and freshness. Scores are built only from public, citable evidence such as case studies, press, and interviews. Placement cannot be purchased, and sponsored listings are labelled and never re-ranked.
- What should I look for when choosing a paid media agency?
- Ask who runs the account by name, ask for one case study that discloses budget and an incremental outcome, and ask what measurement stack they bring. Anyone quoting a ROAS target before seeing your data is guessing. Beyond that, confirm the budget band matches yours and that the senior operator named in the pitch is the person who will actually run the account.
- How much do paid media agencies charge?
- Boutique shops take retainers from roughly $5k–$15k/mo, usually with a $10k–$50k/mo media-spend floor. Mid-market agencies sit around $15k–$40k/mo or 8–15% of spend. Enterprise firms rarely engage below $500k/mo in media. Every profile in this index lists the agency's disclosed budget band so you can filter before the first call.
- What does a paid media agency actually do?
- A paid media agency plans, buys, and optimizes paid acquisition across search, social, video, and programmatic. The mature ones also build the measurement layer underneath. Incrementality tests, MMM, server-side conversion tracking. So spend decisions don't rest on platform self-reporting alone.
- How much should I budget for a paid media agency?
- Boutique shops will usually take you on at $10k–$50k/mo in media spend. Mid-market agencies cluster around $50k–$500k/mo. Holding companies and enterprise-grade firms generally won't engage below $500k/mo. Ask for the agency's published threshold before you pitch. Guessing wastes everyone's time.
- What's the difference between paid media and performance creative?
- Paid media is the buying and measurement function. Performance creative is the asset-production function that feeds it. At scale, creative volume is almost always the bottleneck, not buying skill. So strong programs treat the two as one workflow.
- How do I evaluate a paid media agency objectively?
- Ask who'll actually run the account by name. Ask for a case study with disclosed budget and an incremental outcome. Ask what measurement stack they bring and how they coordinate with your creative team. Walk away from anyone promising ROAS targets before they've seen your data.