Top 100 Contractors in NAICS 5412: Accounting, Tax Preparation, Bookkeeping, and Payroll Services, FY2022

Name: Top 100 Contractors in NAICS 5412: Accounting, Tax Preparation, Bookkeeping, and Payroll Services, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 71% of FY2022 NAICS 5412 contract dollars

Contract obligations: $1,864,574,786 Net of deobligations, by contracts coded NAICS 5412 or a code under it
Contractors: 292 Parent companies with an obligation
Largest contractor: Ernst & Young LLP $338 million, 17.4% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Ernst & Young LLP 5 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) HUD (Department of Housing and Urban Development)	$338,202,487	17.4%	Rank history: #2 in FY2021, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since FY2021.
2	Kpmg L.L.P. 2 awardees Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) Army (Department of the Army)	$336,384,572	17.3%	Rank history: #1 in FY2021, #3 in FY2023, #2 in FY2024 and #2 in FY2025; down 1 since FY2021.
3	Deloitte LLP 2 awardees, including Deloitte & Touche LLP and Deloitte Consulting LLP Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DSCA (Defense Security Cooperation Agency)	$324,691,283	16.7%	Rank history: #3 in FY2021, #2 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since FY2021.
4	Kearney & Company, P.C. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$173,571,603	8.9%	Rank history: #4 in FY2021, #4 in FY2023, #6 in FY2024 and not on the FY2025 list; unchanged since FY2021.
5	Avantus Federal LLC Top agencies OSD (Office of the Secretary of Defense) GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts)	$48,381,906	2.5%	Rank history: #5 in FY2021, #9 in FY2023, #46 in FY2024 and #21 in FY2025; unchanged since FY2021.
6	CBE Group Inc. the 2 awardees Top agencies Treasury (Department of the Treasury)	$35,974,908	1.8%	Rank history: #8 in FY2021, #6 in FY2023, #7 in FY2024 and #7 in FY2025; up 2 since FY2021.
7	Deloitte Consulting LLP 2 awardees Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOJ (Department of Justice)	$35,066,030	1.8%	Rank history: not on the FY2021 list, #10 in FY2023, #64 in FY2024 and not on the FY2025 list; up 105 since FY2021.
8	Research Triangle Institute Top agencies ED (Department of Education) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$31,993,509	1.6%	Rank history: #38 in FY2021, #7 in FY2023, #8 in FY2024 and #8 in FY2025; up 30 since FY2021.
9	Haynes, Inc. Top agencies DOS (Department of State)	$28,101,024	1.4%	Rank history: #6 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
10	Guidehouse Inc. 4 awardees Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USTRANSCOM (Department of Defense United States Transportation Command)	$26,203,399	1.3%	Rank history: #10 in FY2021, #5 in FY2023, #5 in FY2024 and #5 in FY2025; unchanged since FY2021.
11	Larsonallen LLP Through Cliftonlarsonallen LLP Top agencies VA (Department of Veterans Affairs) HUD (Department of Housing and Urban Development) HHS (Department of Health and Human Services)	$23,295,857	1.2%	Rank history: #13 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
12	Sehlke Consulting LLC Top agencies Navy (Department of the Navy) USDA (Department of Agriculture) USSOCOM (United States Special Operations Command)	$18,400,265	0.9%	Rank history: #17 in FY2021, #14 in FY2023, #18 in FY2024 and not on the FY2025 list; up 5 since FY2021.
13	Hamilton Enterprises, LLC Top agencies Treasury (Department of the Treasury) DHA (Defense Health Agency) DOJ (Department of Justice)	$18,350,759	0.9%	Rank history: #11 in FY2021, #12 in FY2023, #14 in FY2024 and #9 in FY2025; down 2 since FY2021.
14	Verato, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DOJ (Department of Justice) AOUSC (Administrative Office of the U.S. Courts)	$18,227,055	0.9%	Rank history: #9 in FY2021, #13 in FY2023, #40 in FY2024 and #48 in FY2025; down 5 since FY2021.
15	Conrad LLP Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) USDA (Department of Agriculture)	$15,880,165	0.8%	Rank history: #18 in FY2021, #11 in FY2023, #12 in FY2024 and #11 in FY2025; up 3 since FY2021.
16	Lynch Consultants, LLC Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) DOL (Department of Labor)	$15,239,207	0.8%	Rank history: #14 in FY2021, #18 in FY2023, #20 in FY2024 and #26 in FY2025; down 2 since FY2021.
17	State Street Corporation Top agencies PBGC (Pension Benefit Guaranty Corporation)	$14,744,931	0.8%	Rank history: #22 in FY2021, #27 in FY2023, #26 in FY2024 and #22 in FY2025; up 5 since FY2021.
18	Cohnreznick LLP Top agencies DOE (Department of Energy) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$13,922,804	0.7%	Rank history: #33 in FY2021, #15 in FY2023, #21 in FY2024 and #36 in FY2025; up 15 since FY2021.
19	Sikich CPA LLC Top agencies USAF (Department of the Air Force) DSCA (Defense Security Cooperation Agency) DOJ (Department of Justice)	$13,840,497	0.7%	Rank history: #19 in FY2021, #20 in FY2023, #15 in FY2024 and #10 in FY2025; unchanged since FY2021.
20	Myers and Stauffer LC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$13,245,558	0.7%	Rank history: #7 in FY2021, #19 in FY2023, #61 in FY2024 and #13 in FY2025; down 13 since FY2021.
21	Miracle Systems LLC Top agencies DHS (Department of Homeland Security) GSA (General Services Administration)	$13,202,879	0.7%	Rank history: #12 in FY2021 and not on the FY2023–FY2025 lists; down 9 since FY2021.
22	Grant Thornton International Ltd 2 awardees, including Grant Thornton Public Sector LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) EXIM (Export Import Bank of the US)	$11,598,457	0.6%	Rank history: #16 in FY2021, #29 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
23	Williams, Adley & Company DC LLP Top agencies SBA (Small Business Administration) HUD (Department of Housing and Urban Development) USAID (US Agency for International Development)	$11,165,190	0.6%	Rank history: #15 in FY2021, #17 in FY2023, #11 in FY2024 and #12 in FY2025; down 8 since FY2021.
24	David-James LLC Top agencies HHS (Department of Health and Human Services)	$10,916,361	0.6%	Rank history: #24 in FY2021, #25 in FY2023, #24 in FY2024 and #47 in FY2025; unchanged since FY2021.
25	Castro & Company, LLC Top agencies DCMA (Defense Contract Management Agency) NASA (National Aeronautics and Space Administration) PBGC (Pension Benefit Guaranty Corporation)	$10,449,832	0.5%	Rank history: #26 in FY2021, #16 in FY2023, #16 in FY2024 and #15 in FY2025; up 1 since FY2021.
26	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies USAID (US Agency for International Development) CNCS (Corporation for National and Community Service) EOP (Executive Office of the President)	$10,127,696	0.5%	Rank history: #21 in FY2021, #24 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
27	Westat, Inc. Top agencies ED (Department of Education)	$10,067,343	0.5%	Rank history: #20 in FY2021, #35 in FY2023, #17 in FY2024 and #31 in FY2025; down 7 since FY2021.
28	Receivia, Inc. 2 awardees Top agencies VA (Department of Veterans Affairs)	$9,024,073	0.5%	Rank history: not on the FY2021 list, #37 in FY2023, #33 in FY2024 and #30 in FY2025; new.
29	Integrated Finance and Accounting Solutions, Llc. Top agencies DOS (Department of State) USAF (Department of the Air Force)	$8,562,290	0.4%	Rank history: not on the FY2021 list, #8 in FY2023, #9 in FY2024 and #6 in FY2025; up 130 since FY2021.
30	Lewis & Ellis, LLC Top agencies HHS (Department of Health and Human Services)	$7,980,474	0.4%	Rank history: #25 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
31	Five Stones Intelligence Inc. Top agencies Treasury (Department of the Treasury)	$7,364,803	0.4%	Rank history: not on the FY2021 list, #51 in FY2023 and not on the FY2024–FY2025 lists; new.
32	Gentech Associates Inc. 2 awardees Top agencies DARPA (Defense Advanced Research Projects Agency) VA (Department of Veterans Affairs) WHS (DOD Washington Headquarters Service)	$7,355,922	0.4%	Rank history: not on the FY2021 list, #39 in FY2023, #38 in FY2024 and #33 in FY2025; new.
33	Federal Management Systems, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) DISA (Defense Information Systems Agency)	$5,799,593	0.3%	Rank history: #23 in FY2021, #45 in FY2023, #39 in FY2024 and #38 in FY2025; down 10 since FY2021.
34	Reed & Associates, Cpas, Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$5,494,444	0.3%	Rank history: #37 in FY2021, #47 in FY2023, #44 in FY2024 and #37 in FY2025; up 3 since FY2021.
35	Psi Pax, Inc. Top agencies Navy (Department of the Navy)	$5,340,420	0.3%	Rank history: #36 in FY2021, #44 in FY2023, #42 in FY2024 and not on the FY2025 list; up 1 since FY2021.
36	Summit Consulting LLC Top agencies HUD (Department of Housing and Urban Development) DOI (Department of the Interior)	$5,254,771	0.3%	Rank history: #34 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
37	Booth Management Consulting, LLC Top agencies DOE (Department of Energy) SSA (Social Security Administration) NASA (National Aeronautics and Space Administration)	$4,720,676	0.2%	Rank history: #30 in FY2021, #34 in FY2023, #75 in FY2024 and not on the FY2025 list; down 7 since FY2021.
38	Science Applications International Corporation Top agencies USAF (Department of the Air Force)	$4,696,341	0.2%	Rank history: #39 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
39	Davis Farr LLP Top agencies HHS (Department of Health and Human Services) DCAA (Defense Contract Audit Agency) Army (Department of the Army)	$4,425,443	0.2%	Rank history: #51 in FY2021, #43 in FY2023, #45 in FY2024 and #54 in FY2025; up 12 since FY2021.
40	Arctic Slope Regional Corporation Through Asrc Federal Cyber, LLC Top agencies Treasury (Department of the Treasury)	$4,223,638	0.2%	Rank history: not on the FY2021 list, #31 in FY2023 and not on the FY2024–FY2025 lists; new.
41	Bland & Associates PC Top agencies HHS (Department of Health and Human Services)	$4,016,392	0.2%	Rank history: #31 in FY2021, #59 in FY2023, #86 in FY2024 and #49 in FY2025; down 10 since FY2021.
42	Chickasaw Strategic Pointe, LLC Top agencies USDA (Department of Agriculture)	$3,940,644	0.2%	Rank history: not on the FY2021 list, #52 in FY2023, #43 in FY2024 and #40 in FY2025; new.
43	Horus Technology Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$3,933,160	0.2%	Rank history: #49 in FY2021, #58 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
44	Saint George Consulting Inc. Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) Navy (Department of the Navy)	$3,753,367	0.2%	Rank history: #32 in FY2021, #33 in FY2023, #34 in FY2024 and #29 in FY2025; down 12 since FY2021.
45	ITC Federal, LLC Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury) DOJ (Department of Justice)	$3,714,866	0.2%	Rank history: #66 in FY2021, #53 in FY2023, #60 in FY2024 and #53 in FY2025; up 21 since FY2021.
46	Mindseeker, Inc. Top agencies Army (Department of the Army)	$3,677,961	0.2%	Rank history: #56 in FY2021, #81 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2021.
47	TFC Consulting Inc. Top agencies DHRA (Defense Human Resources Activity) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$3,630,663	0.2%	Rank history: #28 in FY2021 and not on the FY2023–FY2025 lists; down 19 since FY2021.
48	FM Talent Source, LLC Top agencies ED (Department of Education) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$3,583,795	0.2%	Rank history: #40 in FY2021, #21 in FY2023, #19 in FY2024 and #16 in FY2025; down 8 since FY2021.
49	Trilogy Federal, LLC Top agencies VA (Department of Veterans Affairs)	$3,490,000	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
50	Kingstonville-Mercadien JV LLC Top agencies SBA (Small Business Administration)	$3,346,974	0.2%	Rank history: #50 in FY2021, #54 in FY2023, #62 in FY2024 and #86 in FY2025; unchanged since FY2021.
51	BAE Systems PLC 2 awardees, including BAE Systems Technology Solutions & Services Inc. Top agencies PBGC (Pension Benefit Guaranty Corporation)	$3,032,378	0.2%	Rank history: #53 in FY2021, #60 in FY2023, #50 in FY2024 and not on the FY2025 list; up 2 since FY2021.
52	Total Solutions Inc. Top agencies DHS (Department of Homeland Security)	$3,014,395	0.2%	Rank history: #45 in FY2021, #57 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
53	Lani EKO & Company, Cpas, PLLC Top agencies USAID (US Agency for International Development) DOJ (Department of Justice)	$2,955,908	0.2%	Rank history: #44 in FY2021 and not on the FY2023–FY2025 lists; down 9 since FY2021.
54	Gka, P.C. Top agencies USAID (US Agency for International Development) Treasury (Department of the Treasury) EOP (Executive Office of the President)	$2,786,971	0.1%	Rank history: #58 in FY2021, #62 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
55	Premier Group Services Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) SBA (Small Business Administration)	$2,649,884	0.1%	Rank history: #72 in FY2021, #74 in FY2023, #41 in FY2024 and not on the FY2025 list; up 17 since FY2021.
56	WWC Global LLC Top agencies Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$2,643,964	0.1%	Rank history: not on the FY2021 list, #67 in FY2023, #84 in FY2024 and not on the FY2025 list; up 78 since FY2021.
57	Integrated Management Strategies LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$2,642,171	0.1%	Rank history: not on the FY2021 list, #36 in FY2023, #52 in FY2024 and #35 in FY2025; new.
58	Allmond & Co, LLC Top agencies HHS (Department of Health and Human Services) HUD (Department of Housing and Urban Development) USDA (Department of Agriculture)	$2,573,428	0.1%	Rank history: #67 in FY2021, #69 in FY2023, #47 in FY2024 and #76 in FY2025; up 9 since FY2021.
59	FMR Consulting Inc. Top agencies ED (Department of Education)	$2,485,058	0.1%	Rank history: #60 in FY2021, not on the FY2023–FY2024 lists and #56 in FY2025; up 1 since FY2021.
60	Accenture Federal Services LLC Top agencies Army (Department of the Army)	$2,482,044	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
61	Harper Rains Knight & Co Pa Top agencies SSA (Social Security Administration) DOL (Department of Labor) EEOC (Equal Employment Opportunity Commission)	$2,469,827	0.1%	Rank history: #64 in FY2021, #61 in FY2023, #54 in FY2024 and #51 in FY2025; up 3 since FY2021.
62	Futrend Technology Inc. Top agencies HHS (Department of Health and Human Services)	$2,452,935	0.1%	Rank history: #59 in FY2021, #55 in FY2023, #76 in FY2024 and #62 in FY2025; down 3 since FY2021.
63	Wichita Tribe Industrial Development Commission Through Wichita Tribal Enterprises, LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,395,625	0.1%	Rank history: #42 in FY2021 and not on the FY2023–FY2025 lists; down 21 since FY2021.
64	Elitebco LLC Top agencies USAID (US Agency for International Development) HUD (Department of Housing and Urban Development)	$2,300,000	0.1%	Rank history: #83 in FY2021, not on the FY2023 list, #72 in FY2024 and #84 in FY2025; up 19 since FY2021.
65	Brsi, LP Top agencies DHA (Defense Health Agency)	$2,285,004	0.1%	Rank history: #62 in FY2021, #46 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
66	RMA Associates LLC Top agencies NASA (National Aeronautics and Space Administration) DODIG (Department of Defense Inspector General) OPM (Office of Personnel Management)	$2,281,243	0.1%	Rank history: #92 in FY2021, #75 in FY2023, #97 in FY2024 and not on the FY2025 list; up 26 since FY2021.
67	Rigil Corporation Top agencies DOT (Department of Transportation)	$2,207,841	0.1%	Rank history: #69 in FY2021, #78 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
68	Regis & Associates, PC Top agencies DOL (Department of Labor) NASA (National Aeronautics and Space Administration) DOT (Department of Transportation)	$2,198,191	0.1%	Rank history: #74 in FY2021, #82 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
69	Serco North America (Holdings) Inc Through Serco Inc. Top agencies USAF (Department of the Air Force)	$2,196,399	0.1%	Rank history: #73 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
70	Lyceum Business Services, LLC Top agencies HHS (Department of Health and Human Services)	$2,142,768	0.1%	Rank history: #35 in FY2021, not on the FY2023–FY2024 lists and #23 in FY2025; down 35 since FY2021.
71	FI Consulting, Inc. Top agencies DHS (Department of Homeland Security)	$2,126,377	0.1%	Rank history: #54 in FY2021, #38 in FY2023, #35 in FY2024 and #59 in FY2025; down 17 since FY2021.
72	Tuba Group, Inc. Top agencies DOT (Department of Transportation) Army (Department of the Army) DOJ (Department of Justice)	$2,029,699	0.1%	Rank history: #63 in FY2021, not on the FY2023 list, #78 in FY2024 and #46 in FY2025; down 9 since FY2021.
73	Innovative Computing & Applied Technology LLC Top agencies DOT (Department of Transportation)	$1,936,223	0.1%	Rank history: #65 in FY2021, #77 in FY2023, #70 in FY2024 and not on the FY2025 list; down 8 since FY2021.
74	Ascella Technologies Inc. Top agencies SEC (Securities and Exchange Commission)	$1,842,163	0.1%	Rank history: not on the FY2021 list, #80 in FY2023, #94 in FY2024 and #92 in FY2025; new.
75	Francis Awoyera & Associates, P.C Top agencies HUD (Department of Housing and Urban Development)	$1,802,158	0.1%	Rank history: #70 in FY2021, #79 in FY2023, #87 in FY2024 and not on the FY2025 list; down 5 since FY2021.
76	American Institutes for Research In the Behavioral Sciences Top agencies HHS (Department of Health and Human Services)	$1,659,935	0.1%	Rank history: not on the FY2021 list, #50 in FY2023, #13 in FY2024 and #17 in FY2025; new.
77	Douglas, Sheets, and Stremcha, Cpas, LLC Top agencies HHS (Department of Health and Human Services)	$1,634,315	0.1%	Rank history: #79 in FY2021, not on the FY2023 list, #55 in FY2024 and #68 in FY2025; up 2 since FY2021.
78	Accumyn LLC Top agencies Treasury (Department of the Treasury)	$1,599,350	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 49 since FY2021.
79	Cotiviti GOV Services, LLC Top agencies HHS (Department of Health and Human Services)	$1,593,000	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #31 in FY2024 and #69 in FY2025; new.
80	Chevo LLC Top agencies Treasury (Department of the Treasury)	$1,559,964	0.1%	Rank history: #80 in FY2021, #84 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
81	Covice Tax Solutions LLC Top agencies DLA (Defense Logistics Agency)	$1,500,000	0.1%	Rank history: #96 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2021.
82	Mathematica Inc Top agencies HHS (Department of Health and Human Services)	$1,489,169	0.1%	Rank history: #81 in FY2021, #30 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
83	Deva & Associates PC Top agencies DHS (Department of Homeland Security) NASA (National Aeronautics and Space Administration) Treasury (Department of the Treasury)	$1,446,603	0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
84	Blake Willson Group LLC Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$1,430,491	0.1%	Rank history: not on the FY2021 list, #87 in FY2023, #59 in FY2024 and #52 in FY2025; new.
85	Crisis1, LLC Top agencies DHS (Department of Homeland Security)	$1,394,959	0.1%	Rank history: #86 in FY2021, #76 in FY2023, #74 in FY2024 and #64 in FY2025; up 1 since FY2021.
86	Empirical Corporation Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) DHS (Department of Homeland Security)	$1,303,669	0.1%	Rank history: #84 in FY2021, #92 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
87	RMW Associates, LLC Top agencies DOT (Department of Transportation)	$1,235,057	0.1%	Rank history: #71 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
88	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$1,228,510	0.1%	Rank history: #98 in FY2021, not on the FY2023 list, #96 in FY2024 and not on the FY2025 list; up 10 since FY2021.
89	MBO Partners Inc. Top agencies MCC (Millennium Challenge Corporation)	$1,227,002	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 39 since FY2021.
90	Axiom Corporation Top agencies VA (Department of Veterans Affairs)	$1,198,721	0.1%	Rank history: #61 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; down 29 since FY2021.
91	Today's Solutions, LLC Top agencies Army (Department of the Army)	$1,137,844	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	Alexton Incorporated Top agencies DOE (Department of Energy)	$1,137,777	0.1%	Rank history: #87 in FY2021, #86 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
93	Raft LLC Top agencies HHS (Department of Health and Human Services)	$1,115,027	0.1%	Rank history: #93 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
94	Ruchman and Associates, Inc. Top agencies DHS (Department of Homeland Security)	$1,042,143	0.1%	Rank history: #100 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
95	Wichita Tribal Enterprises, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,039,453	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	Pangea Consulting, LLC Top agencies Commerce (Department of Commerce)	$1,021,152	0.1%	Rank history: not on the FY2021 list, #95 in FY2023, #93 in FY2024 and not on the FY2025 list; new.
97	Hamilton Samlin Milligan, LLC Top agencies DOT (Department of Transportation)	$1,012,136	0.1%	Rank history: #78 in FY2021 and not on the FY2023–FY2025 lists; down 19 since FY2021.
98	Addx Corporation Top agencies Commerce (Department of Commerce)	$1,009,565	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
99	Pohaku Pacific LLC Top agencies USAF (Department of the Air Force)	$1,009,440	0.1%	Rank history: #97 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
100	Stout Risius Ross, LLC Top agencies DOJ (Department of Justice)	$1,000,832	0.1%	Rank history: #47 in FY2021 and not on the FY2023–FY2025 lists; down 53 since FY2021.

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100 of 292 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 5412

Code	Net obligations	Largest contractor
54121 Accounting, Tax Preparation, Bookkeeping, and Payroll Services	$1,864,574,786	Ernst & Young LLP

How this ranking works

Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $1.95 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2022 ran Oct 1, 2021 – Sep 30, 2022. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2021. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2021 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 5412 contractors in FY2022?

1. Ernst & Young LLP ($338M), 2. Kpmg L.L.P. ($336M), 3. Deloitte LLP ($325M), 4. Kearney & Company, P.C. ($174M), 5. Avantus Federal LLC ($48.4M), 6. CBE Group Inc. the ($36M), 7. Deloitte Consulting LLP ($35.1M), 8. Research Triangle Institute ($32M), 9. Haynes, Inc. ($28.1M), 10. Guidehouse Inc. ($26.2M).

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