Top 10 Media Buying Agencies in the USA (2026)
The top 10 media buying agencies in the USA for 2026, ranked by Growth Partner Confidence Score with cited public evidence for every pick.
Updated June 16, 2026 · Compiled and reviewed by Growth Partner Index Editorial Desk
This shortlist ranks the 10 highest-scoring media buying agencies working in the USA, drawn from the 158 agencies currently in the Growth Partner Index. Ranking is by Growth Partner Confidence Score, which is built from public evidence only.
The agencies below are based in Montréal, Canada, New York, NY, Dubai, United Arab Emirates, Atlanta, GA. Each entry links to a full profile with the score breakdown, the sources behind it, disclosed budget band, and the services the agency actually staffs for.
Use it as a starting shortlist, not a verdict. A high score means the public evidence is strong; it does not mean the agency is the right fit for your budget, category, or measurement maturity.
The shortlist
Ranked by Growth Partner Confidence Score
- 1
inBeat is a performance creative agency that turns UGC and influencer partnerships into high-converting ads, with expertise in paid media and growth marketing.
Full profileVisit website$250k–$1M/mo
- 2
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
- 3
Compound Growth publishes case work spanning paid and CRM with disclosed retention and LTV outcomes.
Full profileVisit website$250k–$1M/mo
- 4
Creative Milkshake is a performance creative agency specializing in data-driven UGC and paid social ads for platforms like Meta and TikTok.
Full profileVisit website$10k–$50k/mo
- 5
Fieldtrip is a modular, full-service agency uniting strategy, creative, and media, formed by the teams behind inBeat Agency and Bluethings.
Full profileVisit website$50k–$250k/mo
- 6
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
- 7
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
- 8
Directive Consulting is a specialized B2B performance marketing agency that provides paid media, SEO, and revenue operations services built for enterprise tech and SaaS companies.
Full profileVisit website$1M+/mo
- 9
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
- 10
NinjaPromo is a full-service digital marketing agency offering subscription-based marketing teams with expertise in B2B, fintech, software, and crypto.
Full profileVisit website$50k–$250k/mo
How we picked
Agencies qualify for this list by working in media buying and, for location lists, being headquartered in USA. Ranking is by Growth Partner Confidence Score, which is built from public, citable evidence only.
Read the full Growth Partner Confidence Score methodology, or submit a correction if something here is wrong.
Frequently asked questions
- Who is the #1 media buying agency in the USA in 2026?
- inBeat ranks #1 among media buying agencies in the USA for 2026 with a Growth Partner Confidence Score of 88.5/100. inBeat is based in Montréal, Canada and is best suited to cpg, ecommerce, technology, travel, and health brands. 9AM (82/100) 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 media buying agency?
- Ask about account hygiene practice, server-side conversion tracking, and incrementality testing. Ask who touches the account daily and how often that person changes. 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 media buying agencies charge?
- Fee structures are usually a flat retainer of $5k–$30k/mo or 8–15% of managed media spend, with the percentage model taking over above roughly $250k/mo in spend. Every profile in this index lists the agency's disclosed budget band so you can filter before the first call.