Top 50+ Accounting Companies

The accounting industry in the US generated more than $110 billion in 2020. In 2021, the accounting services market size was estimated to be $119.5 billion.

Searching for top accounting companies? According to IPA, Deloitte is the top accounting company in the US for 2021. However, four major accounting companies, also called the Big Four, dominate the accounting industry in the US. These are Deloitte, PwC (PriceWaterhouseCoopers), Ernst & Young, and KPMG.

Which are the top accounting companies in the US?

The Vault Accounting 50 survey surveyed thousands of accounting professionals. These professionals rated their own first under various categories, such as work-life balance, hours, compensation, and work culture. They were also asked to rate other firms in terms of prestige. The Vault Accounting 50 uses a weighted formula based on these internal and external ratings to come up with the rankings.

Here are the top 50 accounting companies in the US as per Vault Accounting 50.

1 – PwC LLP

PwC is a prestigious and progressive accounting firm, and offers its employees extensive career development opportunities, including training, mentoring, and coaching. It also takes part in several CSR initiatives and has set a carbon neutrality goal for 2030.

2 – Deloitte

Deloitte is among one of the most recognizable brands in the world. Several Fortune 500 companies avail of their audit, tax, consulting, and advisory services worldwide.


One of the Big Four, KPMG offers its employees numerous development opportunities for career growth. This includes training, the flexibility to move locations, change roles, or even change practice areas.


BDO USA LLP has over 60 offices in the US alone and thousands of offices in over 162 countries. BDO is known to provide its staff with formal mentoring and extensive training.

5 – Plante Moran

Plante Moran is one of the largest certified public accounting firms in the US. It employs more than 3,000 employees and has numerous offices in the US, Mexico, India, China, and Japan.


RSM US LLP is the fifth-largest accounting firm in the United States. It employs more than 12,000 people offering audit, tax, and consulting services across the US and Canada.

7 – Baker Tilly

Baker Tilly is the 12th largest certified public accounting and consulting firm in the US.

8 – Moss Adams

Moss Adams LLP features among the 15 largest public accounting companies in the US. Enterprises across different industries avail the tax, accounting, finances, and consulting services offered by Moss Adams.

9 – CohnReznick LLP

Headquartered in New York, CohnReznick LLP is one of the largest public accounting companies in the US and offers accounting, tax, and advisory services.


CBIZ MHM offers financial and insurance services to individual clients as well as organizations of all sizes. It is among the most prestigious accounting, tax, and advisory services firms in the US.

11 – Friedman LLP

Friedman LLP, with its headquarters in New York City, is an accounting, tax, finances, and business consulting firm in operation since 1924. Friedman is known for its Women Development Network that trains women on various topics, such as financial planning and wellness.

12 – Schellman & Co. (Tie)

Schellman is the largest certified public accounting firm specializing in attestations and certification services.

13 – Withum (Tie)

Withum is a reputed public accounting company that provides audit, tax, and advisory services to individuals and businesses on a local and international scale.

14 – Brown Smith Wallace

Brown Smith Wallace is one of the most prominent public accounting firms in the Midwest region of the US.

15 – PKF O’Connor Davies

PKF O’Connor Davies is a full-service certified accounting and advisory firm that has a long and illustrious history of serving customers both locally and internationally.

Other accounting companies listed in the Vault Accounting 50 are:

16. Armanino

17. Eide Bailly

18. Frank, Rimerman + Co.

19. Marcum

20. Grassi & Co

21. Aprio

22. Marks Paneth

23. Mazars USA

24. Frazier & Deeter

25. Sikich

26. Rehmann

27. BPM

28. Freed Maxick

29. EY

30. Grant Thornton

31. Crowe

32. CliftonLarsonAllen

33. BKD

34. EisnerAmper

35. Dixon Hughes Goodman

36. Cherry Bekaert

37. Citrin Cooperman

38. Wipfli

39. RubinBrown

40. UHY Advisors

41. Cohen & Co.

42. The Siegfried Group

43. Squar Milner

44. Elliott Davis

45. Blumshapiro

46. Berdon

47. Anchin

48. Bennett Thrasher

49. Carr, Riggs & Ingram

50. Novogradac & Co.


When running a business, accounting plays a key role because it helps you keep track of your income and expenditure. It also helps you ensure statutory compliance and provides quantitative financial information, helping you make informed business decisions. If you are looking for an accounting company, the list above provides the top accounting firms in the US.

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