Top 100 Contractors in PSC R704: Auditing Services, FY2021

Name: Top 100 Contractors in PSC R704: Auditing Services, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 82% of FY2021 PSC R704 contract dollars

Contract obligations: $799,921,470 Net of deobligations, by contracts coded PSC R704
Contractors: 190 Parent companies with an obligation
Largest contractor: Deloitte LLP $243 million, 28.8% 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	Deloitte LLP 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$242,731,639	28.8%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since FY2020.
2	Ernst & Young LLP 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) HUD (Department of Housing and Urban Development)	$216,257,874	25.6%	Rank history: #2 in FY2022, #2 in FY2023, #3 in FY2024 and #3 in FY2025; down 1 since FY2020.
3	Kpmg L.L.P. 3 awardees Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DOJ (Department of Justice)	$97,337,397	11.5%	Rank history: #3 in FY2022, #3 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since FY2020.
4	Kearney & Company, P.C. Top agencies DHRA (Defense Human Resources Activity) Treasury (Department of the Treasury) DOS (Department of State)	$43,228,028	5.1%	Rank history: #4 in FY2022, #4 in FY2023, #6 in FY2024 and not on the FY2025 list; up 1 since FY2020.
5	Guidehouse Inc. 2 awardees Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service) DHS (Department of Homeland Security)	$31,465,705	3.7%	Rank history: #5 in FY2022, #5 in FY2023, #4 in FY2024 and #5 in FY2025; up 4 since FY2020.
6	Grant Thornton International Ltd 2 awardees, including Grant Thornton LLP and Grant Thornton Public Sector LLC Top agencies OSD (Office of the Secretary of Defense) SSA (Social Security Administration) HHS (Department of Health and Human Services)	$19,183,001	2.3%	Rank history: #7 in FY2022, #10 in FY2023, #30 in FY2024 and not on the FY2025 list; up 5 since FY2020.
7	Sikich CPA LLC Top agencies USAF (Department of the Air Force) GAO (Government Accountability Office) DOJ (Department of Justice)	$11,302,702	1.3%	Rank history: #10 in FY2022, #11 in FY2023, #10 in FY2024 and #8 in FY2025; up 5 since FY2020.
8	Myers and Stauffer LC Top agencies HHS (Department of Health and Human Services)	$10,145,791	1.2%	Rank history: not on the FY2022–FY2024 lists and #34 in FY2025; up 13 since FY2020.
9	TFC Consulting Inc. Top agencies USDA (Department of Agriculture) DHS (Department of Homeland Security) DHRA (Defense Human Resources Activity)	$9,058,242	1.1%	Rank history: #14 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
10	Deloitte & Touche LLP Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) USDA (Department of Agriculture)	$6,968,638	0.8%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
11	Larsonallen LLP Through Cliftonlarsonallen LLP Top agencies HUD (Department of Housing and Urban Development) CNCS (Corporation for National and Community Service) DOT (Department of Transportation)	$5,813,486	0.7%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; up 24 since FY2020.
12	Gentech Associates Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service)	$5,811,011	0.7%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
13	Cohnreznick LLP Top agencies DOE (Department of Energy) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$5,618,589	0.7%	Rank history: #9 in FY2022, #8 in FY2023, #9 in FY2024 and #21 in FY2025; up 5 since FY2020.
14	Reli Group Inc. Top agencies HHS (Department of Health and Human Services)	$4,913,743	0.6%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
15	Visual Axis LLC Top agencies HHS (Department of Health and Human Services)	$4,752,762	0.6%	Rank history: #16 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
16	Castro & Company, LLC Top agencies PBGC (Pension Benefit Guaranty Corporation) Treasury (Department of the Treasury) DCAA (Defense Contract Audit Agency)	$4,707,685	0.6%	Rank history: #11 in FY2022, #14 in FY2023, #15 in FY2024 and #13 in FY2025; up 9 since FY2020.
17	Summit Technologies LLC Top agencies VA (Department of Veterans Affairs)	$4,036,556	0.5%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
18	Tichenor & Associates, LLP Top agencies USAID (US Agency for International Development) USDA (Department of Agriculture) DOT (Department of Transportation)	$3,842,501	0.5%	Rank history: #61 in FY2022, #41 in FY2023, #25 in FY2024 and #40 in FY2025; up 89 since FY2020.
19	Bland & Associates PC Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$3,696,603	0.4%	Rank history: #58 in FY2022, #66 in FY2023, #76 in FY2024 and #38 in FY2025; up 20 since FY2020.
20	Williams, Adley & Company DC LLP Top agencies DFAS (Defense Finance and Accounting Service) ED (Department of Education) Peace Corps	$3,524,409	0.4%	Rank history: #23 in FY2022, #19 in FY2023, #16 in FY2024 and #19 in FY2025; up 6 since FY2020.
21	RMA Associates LLC Top agencies RRB (Railroad Retirement Board) HUD (Department of Housing and Urban Development) DODIG (Department of Defense Inspector General)	$3,094,630	0.4%	Rank history: #12 in FY2022, #15 in FY2023, #17 in FY2024 and #26 in FY2025; down 7 since FY2020.
22	Reveal Global Consulting LLC Top agencies HHS (Department of Health and Human Services)	$3,065,855	0.4%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
23	Performant Recovery, Inc. Top agencies HHS (Department of Health and Human Services)	$2,777,324	0.3%	Rank history: #8 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
24	Gka, P.C. Top agencies USAID (US Agency for International Development) Treasury (Department of the Treasury) EOP (Executive Office of the President)	$2,731,397	0.3%	Rank history: #24 in FY2022, #27 in FY2023, #56 in FY2024 and #72 in FY2025; up 10 since FY2020.
25	Cathexis, LLC Top agencies VA (Department of Veterans Affairs)	$2,355,359	0.3%	Rank history: #25 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
26	Index Systems Inc. Top agencies DSCA (Defense Security Cooperation Agency)	$2,149,264	0.3%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
27	Hamilton Enterprises, LLC Top agencies DHS (Department of Homeland Security) DCAA (Defense Contract Audit Agency) NSF (National Science Foundation)	$1,991,112	0.2%	Rank history: #83 in FY2022, not on the FY2023 list, #32 in FY2024 and #37 in FY2025; down 12 since FY2020.
28	Alaska Native Government Services LLC Through Copper River Technologies, LLC Top agencies DLA (Defense Logistics Agency)	$1,905,897	0.2%	Rank history: #18 in FY2022, not on the FY2023 list, #93 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
29	U.s. Bancorp Through U.s. Bank National Association Top agencies VA (Department of Veterans Affairs)	$1,820,000	0.2%	Rank history: #27 in FY2022, #29 in FY2023, #60 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
30	Wealth Management Partners, LLC Top agencies USAF (Department of the Air Force)	$1,815,269	0.2%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
31	Serco North America (Holdings) Inc Through Serco Inc. Top agencies USAF (Department of the Air Force)	$1,757,807	0.2%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
32	Bnl, Inc. Top agencies HUD (Department of Housing and Urban Development)	$1,649,246	0.2%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
33	Harper Rains Knight & Co Pa Top agencies SSA (Social Security Administration) DOL (Department of Labor) EEOC (Equal Employment Opportunity Commission)	$1,625,357	0.2%	Rank history: #30 in FY2022, #28 in FY2023, #26 in FY2024 and #28 in FY2025; up 13 since FY2020.
34	Babb Maldonado & Associates, LLC Top agencies SBA (Small Business Administration)	$1,614,296	0.2%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
35	Creative Corrections, LLC Top agencies DHS (Department of Homeland Security)	$1,427,288	0.2%	Rank history: #32 in FY2022, #42 in FY2023, #49 in FY2024 and #52 in FY2025; up 20 since FY2020.
36	Trilogy Federal, LLC Top agencies VA (Department of Veterans Affairs)	$1,386,750	0.2%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
37	Conrad LLP Top agencies Army (Department of the Army) USAID (US Agency for International Development) USDA (Department of Agriculture)	$1,304,136	0.2%	Rank history: #45 in FY2022, #46 in FY2023, #42 in FY2024 and #11 in FY2025; up 19 since FY2020.
38	Technical Resources International, Inc. Top agencies HHS (Department of Health and Human Services)	$1,260,124	0.1%	Rank history: #50 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
39	Premier Group Services Inc. Top agencies HUD (Department of Housing and Urban Development) SBA (Small Business Administration) Selective Service System	$1,189,046	0.1%	Rank history: #34 in FY2022, #72 in FY2023, #53 in FY2024 and #79 in FY2025; up 15 since FY2020.
40	Integrity Management Services Inc. Top agencies HHS (Department of Health and Human Services)	$1,137,536	0.1%	Rank history: #35 in FY2022, #36 in FY2023, #38 in FY2024 and #51 in FY2025; up 8 since FY2020.
41	Markon LLC Top agencies Navy (Department of the Navy)	$1,096,657	0.1%	Rank history: #37 in FY2022, #40 in FY2023, #55 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
42	Afognak Native Corporation Through Alutiiq Professional Training, LLC Top agencies Army (Department of the Army)	$1,074,878	0.1%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
43	Catalyst Emax Partners LLC Top agencies HUD (Department of Housing and Urban Development)	$1,006,980	0.1%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
44	Covice Tax Solutions LLC Top agencies DLA (Defense Logistics Agency)	$1,000,000	0.1%	Rank history: #33 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
45	FI Consulting, Inc. Top agencies Treasury (Department of the Treasury) SBA (Small Business Administration)	$996,611	0.1%	Rank history: not on the FY2022 list, #35 in FY2023, #45 in FY2024 and not on the FY2025 list; down 2 since FY2020.
46	Chickasaw Management Services, LLC Top agencies HHS (Department of Health and Human Services)	$947,148	0.1%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
47	Teamstaff Inc. Through Danya International LLC Top agencies DHS (Department of Homeland Security)	$889,448	0.1%	Rank history: not on the FY2022 list, #60 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
48	Lord and Tucker Management Consultants, L.L.C. Top agencies HHS (Department of Health and Human Services)	$874,151	0.1%	Rank history: not on the FY2022 list, #45 in FY2023, #74 in FY2024 and not on the FY2025 list; up 11 since FY2020.
49	Madison Associates Inc. Top agencies DHS (Department of Homeland Security)	$845,632	0.1%	Rank history: #41 in FY2022, #48 in FY2023, #87 in FY2024 and #83 in FY2025; down 12 since FY2020.
50	Davis Farr LLP Top agencies DCAA (Defense Contract Audit Agency) Army (Department of the Army) DOT (Department of Transportation)	$838,825	0.1%	Rank history: #38 in FY2022, #59 in FY2023, #59 in FY2024 and #31 in FY2025; up 8 since FY2020.
51	ST. Michael's Inc. Top agencies DHS (Department of Homeland Security)	$822,717	0.1%	Rank history: not on the FY2022 list, #44 in FY2023, #52 in FY2024 and not on the FY2025 list; up 13 since FY2020.
52	Brown & Co Certified Public Accountants & Management Consultants PLLC Top agencies Treasury (Department of the Treasury) FEC (Federal Election Commission) EAC (US Election Assistance Commission)	$808,699	0.1%	Rank history: #20 in FY2022, #43 in FY2023, #98 in FY2024 and #56 in FY2025; up 17 since FY2020.
53	Saggar & Rosenberg, P.C. Top agencies Treasury (Department of the Treasury)	$775,876	0.1%	Rank history: #92 in FY2022, #47 in FY2023, #73 in FY2024 and #63 in FY2025; up 44 since FY2020.
54	The American Correctional Association Top agencies DOS (Department of State) DHS (Department of Homeland Security) Navy (Department of the Navy)	$730,310	0.1%	Rank history: #46 in FY2022, #49 in FY2023, #82 in FY2024 and not on the FY2025 list; up 83 since FY2020.
55	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies USDA (Department of Agriculture)	$687,396	0.1%	Rank history: not on the FY2022–FY2025 lists; down 45 since FY2020.
56	Acuity Consulting, Inc. Top agencies EOP (Executive Office of the President) DOI (Department of the Interior)	$612,775	0.1%	Rank history: #31 in FY2022, not on the FY2023 list, #50 in FY2024 and #98 in FY2025; up 6 since FY2020.
57	Regis & Associates, PC Top agencies NASA (National Aeronautics and Space Administration)	$590,778	0.1%	Rank history: #57 in FY2022, #81 in FY2023, #80 in FY2024 and #61 in FY2025; down 6 since FY2020.
58	Deloitte Consulting LLP Top agencies Navy (Department of the Navy)	$590,000	0.1%	Rank history: not on the FY2022–FY2025 lists; down 50 since FY2020.
59	WAI & Associates, PLLC Top agencies HHS (Department of Health and Human Services)	$496,394	0.1%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
60	Global Network Systems of Maryland, Inc. Top agencies DHS (Department of Homeland Security)	$471,891	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Integrated Finance and Accounting Solutions, Llc. Top agencies DOT (Department of Transportation)	$458,480	0.1%	Rank history: not on the FY2022–FY2024 lists and #16 in FY2025; down 11 since FY2020.
62	Thomas & Reed LLC Top agencies DHS (Department of Homeland Security)	$458,053	0.1%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
63	E.f. Kearney, Limited Top agencies USDA (Department of Agriculture)	$454,387	0.1%	Rank history: #52 in FY2022, #74 in FY2023, #5 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
64	Simpson and Simpson LLP Top agencies USDA (Department of Agriculture)	$449,259	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Ollie Green & Co, Cpa's, LLC Top agencies VA (Department of Veterans Affairs)	$444,626	0.1%	Rank history: #53 in FY2022, #63 in FY2023, #67 in FY2024 and #64 in FY2025; up 3 since FY2020.
66	Crowe LLP Top agencies USAID (US Agency for International Development) Army (Department of the Army)	$444,145	0.1%	Rank history: not on the FY2022 list, #56 in FY2023, #71 in FY2024 and not on the FY2025 list; down 5 since FY2020.
67	Mcbride, Lock & Associates, LLC Top agencies EAC (US Election Assistance Commission) GSA (General Services Administration)	$423,280	0.1%	Rank history: #94 in FY2022, not on the FY2023 list, #90 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
68	Nuenergen, LLC Top agencies GSA (General Services Administration)	$360,054	<0.1%	Rank history: #65 in FY2022, #68 in FY2023, #69 in FY2024 and #87 in FY2025; up 23 since FY2020.
69	Integrated Financial Engineering Inc. Top agencies HUD (Department of Housing and Urban Development)	$356,331	<0.1%	Rank history: #64 in FY2022, #83 in FY2023, #54 in FY2024 and #60 in FY2025; up 4 since FY2020.
70	Infopact, Inc. Top agencies CSOSA (Court Services and Offender Supervision Agency)	$355,200	<0.1%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
71	Allmond & Co, LLC Top agencies EPA (Environmental Protection Agency) FMCS (Federal Mediation and Conciliation Service) DOT (Department of Transportation)	$340,648	<0.1%	Rank history: #56 in FY2022, #50 in FY2023, #36 in FY2024 and #66 in FY2025; up 19 since FY2020.
72	Reed & Associates, Cpas, Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$335,955	<0.1%	Rank history: #49 in FY2022, not on the FY2023–FY2024 lists and #50 in FY2025; up 5 since FY2020.
73	American University Top agencies DOT (Department of Transportation) NSF (National Science Foundation)	$332,376	<0.1%	Rank history: not on the FY2022–FY2023 lists, #86 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
74	Endyna, Inc. Top agencies HHS (Department of Health and Human Services)	$314,168	<0.1%	Rank history: #72 in FY2022, #75 in FY2023, #77 in FY2024 and not on the FY2025 list; up 6 since FY2020.
75	Mcgraw Hill Financial Inc. Through S&P Global Market Intelligence LLC Top agencies DOJ (Department of Justice)	$295,000	<0.1%	Rank history: #77 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
76	Whitetail Environmental, LLC Top agencies DOI (Department of the Interior)	$293,194	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
77	Micro Systems Consultants, Inc. Top agencies DHS (Department of Homeland Security)	$272,673	<0.1%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
78	TWM Associates, Inc. Top agencies DHS (Department of Homeland Security) USTDA (United States Trade and Development Agency)	$265,719	<0.1%	Rank history: #73 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
79	Invotex IP, LLC Top agencies HHS (Department of Health and Human Services)	$245,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Kongsberg Gruppen ASA Through Kongsberg Geospatial Ltd. Top agencies DOT (Department of Transportation)	$238,185	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Govatron, LLC Top agencies HUD (Department of Housing and Urban Development)	$230,400	<0.1%	Rank history: #75 in FY2022, #76 in FY2023, #79 in FY2024 and #74 in FY2025; new, not ranked in FY2020.
82	Withumsmith+Brown PC Top agencies NSF (National Science Foundation) CNCS (Corporation for National and Community Service)	$226,332	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
83	Swingtech Consulting Inc. Top agencies DOS (Department of State)	$216,211	<0.1%	Rank history: #96 in FY2022, #96 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
84	Caladwich Consulting LLC Top agencies DOT (Department of Transportation)	$212,783	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Bracane Company Top agencies HHS (Department of Health and Human Services)	$205,649	<0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
86	CVR Associates, Inc. Top agencies HUD (Department of Housing and Urban Development)	$199,638	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Heartland Energy Partners LLC Top agencies USDA (Department of Agriculture)	$186,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
88	Dembo Jones, P.C. Top agencies FLRA (Federal Labor Relations Authority)	$180,444	<0.1%	Rank history: #85 in FY2022, #87 in FY2023, #88 in FY2024 and #84 in FY2025; new, not ranked in FY2020.
89	Vintun LLC Top agencies Navy (Department of the Navy)	$176,794	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
90	Lani EKO & Company, Cpas, PLLC Top agencies FCC (Federal Communications Commission)	$174,757	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Innovative Technology Partnerships LLC Top agencies DOE (Department of Energy)	$168,151	<0.1%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; down 47 since FY2020.
92	Golder Associates SRL Through WSP Italia S.R.L. Top agencies Army (Department of the Army)	$162,574	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Cliftonlarsonallen LLP Top agencies GAO (Government Accountability Office)	$158,676	<0.1%	Rank history: not on the FY2022 list, #20 in FY2023, #27 in FY2024 and not on the FY2025 list; down 51 since FY2020.
94	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$158,168	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
95	Grant Thornton LLP Top agencies HHS (Department of Health and Human Services)	$155,764	<0.1%	Rank history: not on the FY2022–FY2024 lists and #30 in FY2025; down 82 since FY2020.
96	Saint George Consulting Inc. Top agencies DOI (Department of the Interior) Treasury (Department of the Treasury) DOL (Department of Labor)	$148,620	<0.1%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 53 since FY2020.
97	Merove-Pierre Cabinet D'experts-Comptables Top agencies USAID (US Agency for International Development)	$140,150	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Amtivo (USA) Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$139,598	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 55 since FY2020.
99	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies OSD (Office of the Secretary of Defense)	$138,485	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 80 since FY2020.
100	Sontiq, Inc. Top agencies DHRA (Defense Human Resources Activity)	$132,076	<0.1%	Rank history: not on the FY2022–FY2023 lists, #41 in FY2024 and not on the FY2025 list; down 2 since FY2020.

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100 of 190 contractors listed here. See the rest on GovTribe.

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 $844 million 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 PSC R704 contractors in FY2021?

1. Deloitte LLP ($243M), 2. Ernst & Young LLP ($216M), 3. Kpmg L.L.P. ($97.3M), 4. Kearney & Company, P.C. ($43.2M), 5. Guidehouse Inc. ($31.5M), 6. Grant Thornton International Ltd ($19.2M), 7. Sikich CPA LLC ($11.3M), 8. Myers and Stauffer LC ($10.1M), 9. TFC Consulting Inc. ($9.06M), 10. Deloitte & Touche LLP ($6.97M).

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