What are the top 10 advertising agencies?
The largest US-based advertising agencies by revenue in 2026 include (in rough order): BBDO, McCann Worldgroup, Ogilvy, Wieden+Kennedy, Publicis Worldwide, DDB, TBWA, Leo Burnett, Grey Group, and Havas. This ranking shifts annually with billings. For SMB and mid-market alternatives, The Wall's directory lists thousands of independent US agencies at the Marketing pillar.
What the review data can and cannot rank
Published top-ten lists are mostly editorial or paid. Here is what the underlying data looks like instead. 374 US listings in The Wall name advertising among their services, 354 carry public client reviews, and those reviews average 4.91 out of 5 across 6,912 of them.
A mean that high across that many firms cannot produce a ranking. It can only tell you that the floor in this market is decent, which is genuinely useful and is not the same as knowing who is best.
Price spreads further than the scores do. 27 of these firms charge under $100 an hour and 47 charge $200 or more. Any ordered list running across that range is ranking on reputation rather than on fit with your budget.
How to use this
Use review volume rather than review score. A firm with 60 reviews has a track record you can read. A firm with 2 reviews at 5.0 has a testimonial.
How this was computed. Every figure on this page is counted from The Wall's own directory of approved, US-headquartered, machine-verified-live listings: 3,460 of them in the snapshot captured 2026-09-14. Rates, minimum project sizes, team sizes, founding years and ratings are provider-declared figures published on public profiles. 1,738 of those listings publish a service list, and that field holds at most 4 services per firm, so service counts are counts of what firms name first rather than everything they sell. Percentages of disclosed values exclude listings that publish no figure. Nothing here is modeled or estimated. Sourcing standards: editorial policy.
Why this matters
Google puts this question in People Also Ask for the "marketing agency" query, which means buyers are asking it while they shop. The Wall answers it from the directory position: we index 3,460 verified US growth-services vendors across 10 pillars, so the figures above come from those records rather than from a survey.
If you are evaluating vendors in this category, the Marketing pillar page carries the full US firm list with rate, team size and headquarters filters.