In Accounting & Tax Services

Which accounting firms are the largest in the country?

EditionNov 11, 2026Asked on 6 AI surfacesv5.0

AI Visibility Ranking

Brands ordered by GenRank score for this question.

DirectionalQuestion-level figures rest on at most 6 answers per brand, so treat them as direction, not a verdict; the category ranking is the number to judge by. Scores are for the week of 2026-11-08.

RankBrandNamed byScore
1Deloitte6/6100.0
2PwC6/676.9
3EY6/667.7
4RSM US LLP6/658.9
5BDO6/655.1
6Grant Thornton6/651.9
7Baker Tilly5/645.8
8KPMG5/644.9
9Forvis Mazars5/636.1
10CBIZ4/629.4

Sources these answers cited

The sites each surface's answer cited this week. The logos are the surfaces that cited the site.

SourceCited by
insidepublicaccounting.comIPA | Rankings of INSIDE Public Accounting’s Top 500 CPA Firms3 surfaces
en.wikipedia.orgreference · Big Four accounting firms - Wikipedia2 surfaces
onestopodoo.comTop 10 Accounting Firms in the USA | 2026 Guide2 surfaces
statista.comreference · Top accounting firms by U.S. revenue 2025 | Statista2 surfaces
zelleducation.comTop CPA Firms in 2026: Rankings by Size & Revenue2 surfaces
4888323.fs1.hubspotusercontent-na1.netTHE 2026 accountingTODAY TOP 100 FIRMS1 surfaces
accountingtoday.comThe 2021 Top 100 Firms1 surfaces
acecloudhosting.comacecloudhosting.com1 surfaces
adamsbrowncpa.comadamsbrowncpa.com1 surfaces
bayforward.combayforward.com1 surfaces
bebop.aiBig 4 Accounting Firms: Revenue and Headcount 20261 surfaces
big4accountingfirms.comTop 10 Accounting Firms In The World (2026) (Largest Firms)1 surfaces

9 more

Rank trend

Rank trends are drawn once two weekly editions under the same methodology exist. Only the first edition is in so far.