Top 100 Contractors in NAICS 541211: Offices of Certified Public Accountants, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Ernst & Young LLP 4 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) CNCS (Corporation for National and Community Service)	$515,374,228	34.5%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	Kpmg L.L.P. 3 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) HHS (Department of Health and Human Services)	$294,263,573	19.7%	Rank history: #2 in FY2021, #2 in FY2022, #3 in FY2023 and #2 in FY2025; up 1 since FY2023.
3	Deloitte 3 awardees, including Deloitte & Touche LLP Top agencies USAF (Department of the Air Force) DSCA (Defense Security Cooperation Agency) DOD (Department of Defense)	$193,782,396	13.0%	Rank history: #4 in FY2021, #3 in FY2022, #2 in FY2023 and #4 in FY2025; down 1 since FY2023.
4	E.f. Kearney, Limited Through Kearney & Company, P.C. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$109,497,700	7.3%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2025; new.
5	Kearney & Company, P.C. Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army) DISA (Defense Information Systems Agency)	$51,583,815	3.5%	Rank history: #3 in FY2021, #4 in FY2022, #4 in FY2023 and not on the FY2025 list; down 1 since FY2023.
6	The CBE Group, Inc. 2 awardees Top agencies Treasury (Department of the Treasury)	$45,429,180	3.0%	Rank history: #6 in FY2021, #5 in FY2022, #5 in FY2023 and #5 in FY2025; down 1 since FY2023.
7	Conrad LLP Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$18,731,880	1.3%	Rank history: #8 in FY2021, #6 in FY2022, #6 in FY2023 and #6 in FY2025; down 1 since FY2023.
8	Williams, Adley & Company DC LLP Top agencies HUD (Department of Housing and Urban Development) SBA (Small Business Administration) USAID (US Agency for International Development)	$18,638,479	1.2%	Rank history: #7 in FY2021, #12 in FY2022, #8 in FY2023 and #8 in FY2025; unchanged since FY2023.
9	American Institutes for Research In the Behavioral Sciences Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOT (Department of Transportation)	$17,933,967	1.2%	Rank history: not on the FY2021 list, #32 in FY2022, #22 in FY2023 and #10 in FY2025; up 13 since FY2023.
10	Sikich CPA LLC Top agencies USAF (Department of the Air Force) DSCA (Defense Security Cooperation Agency) DOJ (Department of Justice)	$13,809,337	0.9%	Rank history: #9 in FY2021, #8 in FY2022, #10 in FY2023 and #7 in FY2025; unchanged since FY2023.
11	Cohnreznick LLP Top agencies DOE (Department of Energy) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$13,104,182	0.9%	Rank history: #17 in FY2021, #7 in FY2022, #7 in FY2023 and #15 in FY2025; down 4 since FY2023.
12	Five Stones Intelligence Inc. Top agencies Treasury (Department of the Treasury)	$12,183,163	0.8%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
13	David-James LLC Top agencies HHS (Department of Health and Human Services)	$11,133,542	0.7%	Rank history: #11 in FY2021, #11 in FY2022, #12 in FY2023 and #18 in FY2025; down 1 since FY2023.
14	Great Hill Solutions, LLC Top agencies DHA (Defense Health Agency)	$10,689,607	0.7%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023 and #13 in FY2025; down 1 since FY2023.
15	Mathematica Inc. Top agencies SSA (Social Security Administration) HHS (Department of Health and Human Services)	$8,782,539	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
16	Saint George Consulting Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$6,996,402	0.5%	Rank history: #16 in FY2021, #21 in FY2022, #15 in FY2023 and #14 in FY2025; down 1 since FY2023.
17	Hamilton Enterprises, LLC Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice) NASA (National Aeronautics and Space Administration)	$5,052,642	0.3%	Rank history: #10 in FY2021, #10 in FY2022, #11 in FY2023 and #11 in FY2025; down 6 since FY2023.
18	Premier Group Services Inc. Top agencies USAID (US Agency for International Development) NSF (National Science Foundation) EPA (Environmental Protection Agency)	$4,874,617	0.3%	Rank history: #32 in FY2021, #25 in FY2022, #32 in FY2023 and #56 in FY2025; up 14 since FY2023.
19	Chickasaw Strategic Pointe, LLC Top agencies USDA (Department of Agriculture)	$4,197,230	0.3%	Rank history: not on the FY2021 list, #20 in FY2022, #24 in FY2023 and #17 in FY2025; up 5 since FY2023.
20	Reed & Associates, Cpas, Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$4,173,404	0.3%	Rank history: #18 in FY2021, #15 in FY2022, #20 in FY2023 and #16 in FY2025; unchanged since FY2023.
21	Davis Farr LLP Top agencies HHS (Department of Health and Human Services) DCAA (Defense Contract Audit Agency) USDA (Department of Agriculture)	$4,025,460	0.3%	Rank history: #23 in FY2021, #17 in FY2022, #18 in FY2023 and #21 in FY2025; down 3 since FY2023.
22	Allmond & Co, LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) HUD (Department of Housing and Urban Development)	$3,591,354	0.2%	Rank history: #81 in FY2021, #64 in FY2022, #33 in FY2023 and #28 in FY2025; up 11 since FY2023.
23	Tichenor & Associates, LLP Top agencies USAID (US Agency for International Development) DCAA (Defense Contract Audit Agency) USDA (Department of Agriculture)	$3,120,947	0.2%	Rank history: #25 in FY2021, #55 in FY2022, #37 in FY2023 and #27 in FY2025; up 14 since FY2023.
24	Harper Rains Knight & Co Pa Top agencies SSA (Social Security Administration) DOL (Department of Labor) EEOC (Equal Employment Opportunity Commission)	$2,936,154	0.2%	Rank history: #28 in FY2021, #26 in FY2022, #29 in FY2023 and #20 in FY2025; up 5 since FY2023.
25	Myers and Stauffer LC Top agencies HHS (Department of Health and Human Services)	$2,643,947	0.2%	Rank history: #5 in FY2021, #9 in FY2022, #9 in FY2023 and #9 in FY2025; down 16 since FY2023.
26	Gentech Associates Inc. Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$2,593,490	0.2%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #26 in FY2025; up 12 since FY2023.
27	Kingstonville-Mercadien JV LLC Top agencies SBA (Small Business Administration)	$2,578,329	0.2%	Rank history: #22 in FY2021, #22 in FY2022, #26 in FY2023 and #31 in FY2025; down 1 since FY2023.
28	Blake Willson Group LLC Top agencies NSF (National Science Foundation)	$2,493,888	0.2%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; new.
29	Lewis & Ellis Inc. Top agencies HHS (Department of Health and Human Services)	$2,009,816	0.1%	Rank history: #12 in FY2021, #13 in FY2022, #21 in FY2023 and not on the FY2025 list; down 8 since FY2023.
30	Booth Management Consulting, LLC Top agencies DOE (Department of Energy) SSA (Social Security Administration) NASA (National Aeronautics and Space Administration)	$1,951,528	0.1%	Rank history: #14 in FY2021, #16 in FY2022, #16 in FY2023 and not on the FY2025 list; down 14 since FY2023.
31	Alexton Incorporated Top agencies DOE (Department of Energy)	$1,489,576	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
32	Bland & Associates PC Top agencies HHS (Department of Health and Human Services) ED (Department of Education)	$1,476,279	0.1%	Rank history: #15 in FY2021, #19 in FY2022, #28 in FY2023 and #19 in FY2025; down 4 since FY2023.
33	Francis Awoyera & Associates, P.C Top agencies HUD (Department of Housing and Urban Development)	$1,424,514	0.1%	Rank history: #29 in FY2021, #29 in FY2022, #35 in FY2023 and #51 in FY2025; up 2 since FY2023.
34	Castro & Company, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,245,218	0.1%	Rank history: #43 in FY2021, #36 in FY2022, #40 in FY2023 and #24 in FY2025; up 6 since FY2023.
35	Ollie Green & Co, Cpa's, LLC Top agencies VA (Department of Veterans Affairs)	$1,117,072	0.1%	Rank history: #47 in FY2021, #53 in FY2022, #47 in FY2023 and #38 in FY2025; up 12 since FY2023.
36	Pangea Consulting, LLC Top agencies Commerce (Department of Commerce)	$1,083,398	0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #43 in FY2023 and not on the FY2025 list; up 7 since FY2023.
37	Ibswa Government Solutions, LLC Top agencies HUD (Department of Housing and Urban Development)	$999,081	0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #37 in FY2025; up 7 since FY2023.
38	RMA Associates LLC 2 awardees Top agencies DODIG (Department of Defense Inspector General) Treasury (Department of the Treasury) PCLOB (Privacy and Civil Liberties Oversight Board)	$964,445	0.1%	Rank history: #39 in FY2021, #30 in FY2022, #34 in FY2023 and #53 in FY2025; down 4 since FY2023.
39	Mcbride, Lock & Associates, LLC Top agencies NSF (National Science Foundation) DOJ (Department of Justice) EAC (US Election Assistance Commission)	$910,953	0.1%	Rank history: #78 in FY2021, #41 in FY2022, #42 in FY2023 and #32 in FY2025; up 3 since FY2023.
40	Elitebco LLC Top agencies HUD (Department of Housing and Urban Development)	$900,000	0.1%	Rank history: #41 in FY2021, #45 in FY2022, not on the FY2023 list and #30 in FY2025; returned.
41	Gka, P.C. Top agencies Treasury (Department of the Treasury) EOP (Executive Office of the President)	$795,998	0.1%	Rank history: #26 in FY2021, #23 in FY2022, #30 in FY2023 and #48 in FY2025; down 11 since FY2023.
42	Brsi, LP Top agencies DHA (Defense Health Agency)	$704,004	<0.1%	Rank history: #27 in FY2021, #27 in FY2022, #19 in FY2023 and not on the FY2025 list; down 23 since FY2023.
43	Davis Audrey Robinette Top agencies HUD (Department of Housing and Urban Development) DCAA (Defense Contract Audit Agency) Navy (Department of the Navy)	$677,483	<0.1%	Rank history: #73 in FY2021, #46 in FY2022, #60 in FY2023 and #33 in FY2025; up 17 since FY2023.
44	FTI Consulting, Inc. Top agencies SEC (Securities and Exchange Commission) DOS (Department of State)	$602,931	<0.1%	Rank history: not on the FY2021 list, #42 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
45	Analysis Group Inc. Top agencies Treasury (Department of the Treasury)	$593,589	<0.1%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #47 in FY2025; unchanged since FY2023.
46	Personal Group Incorporated Top agencies HHS (Department of Health and Human Services)	$503,790	<0.1%	Rank history: #68 in FY2021, #47 in FY2022, not on the FY2023 list and #62 in FY2025; returned.
47	ATA Services, Inc. Top agencies DOI (Department of the Interior)	$497,209	<0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #35 in FY2025; up 7 since FY2023.
48	Rossin & Co. A Professional Association Kaufman Top agencies SEC (Securities and Exchange Commission)	$492,900	<0.1%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; new.
49	Saggar & Rosenberg, P.C. Top agencies CNCS (Corporation for National and Community Service) PBGC (Pension Benefit Guaranty Corporation)	$488,792	<0.1%	Rank history: #46 in FY2021, #57 in FY2022, #41 in FY2023 and #25 in FY2025; down 8 since FY2023.
50	Lopez & Associates, LLP Top agencies DCAA (Defense Contract Audit Agency) DOT (Department of Transportation)	$472,416	<0.1%	Rank history: #74 in FY2021, #58 in FY2022, #53 in FY2023 and #60 in FY2025; up 3 since FY2023.
51	Empirical Corporation Top agencies HHS (Department of Health and Human Services)	$454,999	<0.1%	Rank history: #44 in FY2021, #48 in FY2022, #48 in FY2023 and #50 in FY2025; down 3 since FY2023.
52	Simpson and Simpson LLP Top agencies USDA (Department of Agriculture)	$452,994	<0.1%	Rank history: #52 in FY2021, #54 in FY2022, #55 in FY2023 and not on the FY2025 list; up 3 since FY2023.
53	Gerald Fujimoto Top agencies SEC (Securities and Exchange Commission)	$449,180	<0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
54	Seber Tans PLC Top agencies DOJ (Department of Justice)	$430,441	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022, #67 in FY2023 and #44 in FY2025; up 13 since FY2023.
55	Monbo Group International, Ltd Top agencies DHA (Defense Health Agency)	$402,684	<0.1%	Rank history: #94 in FY2021, #97 in FY2022, #56 in FY2023 and not on the FY2025 list; up 1 since FY2023.
56	MH Miles Company, Cpa, PC Top agencies USDA (Department of Agriculture)	$369,724	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	Kapilamukamal, LLP Top agencies SEC (Securities and Exchange Commission)	$344,950	<0.1%	Rank history: #50 in FY2021, #62 in FY2022, #75 in FY2023 and #39 in FY2025; up 18 since FY2023.
58	Sehlke Consulting LLC Top agencies USDA (Department of Agriculture) USSOCOM (United States Special Operations Command)	$337,655	<0.1%	Rank history: #24 in FY2021, #31 in FY2022, #25 in FY2023 and not on the FY2025 list; down 33 since FY2023.
59	Regis & Associates, PC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) USDA (Department of Agriculture)	$312,013	<0.1%	Rank history: #33 in FY2021, #28 in FY2022, #36 in FY2023 and #78 in FY2025; down 23 since FY2023.
60	2Ndwave LLC Top agencies Treasury (Department of the Treasury)	$288,000	<0.1%	Rank history: #55 in FY2021, #60 in FY2022, #59 in FY2023 and not on the FY2025 list; down 1 since FY2023.
61	Financial Reporting Advisors, LLC Top agencies SEC (Securities and Exchange Commission)	$246,500	<0.1%	Rank history: not on the FY2021 list, #85 in FY2022, #50 in FY2023 and not on the FY2025 list; down 11 since FY2023.
62	Integrated Financial Engineering Inc. Top agencies CFPB (Consumer Financial Protection Bureau)	$244,433	<0.1%	Rank history: #48 in FY2021, #50 in FY2022, #57 in FY2023 and not on the FY2025 list; down 5 since FY2023.
63	Tronconi Segarra & Associates LLP Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$233,890	<0.1%	Rank history: not on the FY2021 list, #69 in FY2022, #49 in FY2023 and #42 in FY2025; down 14 since FY2023.
64	Tinker Salome Chris Enterprise, LLC Top agencies DOJ (Department of Justice)	$231,679	<0.1%	Rank history: #72 in FY2021, #95 in FY2022, #85 in FY2023 and #34 in FY2025; up 21 since FY2023.
65	Simmons-Johnson Consulting, LLC Top agencies HUD (Department of Housing and Urban Development)	$192,804	<0.1%	Rank history: not on the FY2021 list, #61 in FY2022, #61 in FY2023 and #40 in FY2025; down 4 since FY2023.
66	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$171,578	<0.1%	Rank history: #51 in FY2021, #51 in FY2022, #69 in FY2023 and #49 in FY2025; up 3 since FY2023.
67	Coca Y Asociados Top agencies EOP (Executive Office of the President)	$159,815	<0.1%	Rank history: #79 in FY2021, #79 in FY2022, not on the FY2023 list and #64 in FY2025; returned.
68	Dembo Jones, P.C. Top agencies FLRA (Federal Labor Relations Authority)	$148,840	<0.1%	Rank history: #61 in FY2021, #65 in FY2022, #64 in FY2023 and #55 in FY2025; down 4 since FY2023.
69	Federal Management Systems, Inc. Top agencies EOP (Executive Office of the President)	$141,534	<0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #67 in FY2025; up 5 since FY2023.
70	Holmes & Company, L.L.C. Top agencies USDA (Department of Agriculture) GSA (General Services Administration)	$126,900	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and #23 in FY2025; up 25 since FY2023.
71	Bert W. Smith, JR. & Co., Chartered Top agencies USAID (US Agency for International Development)	$121,382	<0.1%	Rank history: not on the FY2021 list, #70 in FY2022, #92 in FY2023 and not on the FY2025 list; up 21 since FY2023.
72	Long & Associates, LLC Top agencies HHS (Department of Health and Human Services)	$116,274	<0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and not on the FY2025 list; up 11 since FY2023.
73	SB & Company, LLC Top agencies Denali Commission EPA (Environmental Protection Agency)	$113,390	<0.1%	Rank history: #64 in FY2021, #75 in FY2022, #76 in FY2023 and not on the FY2025 list; up 3 since FY2023.
74	Eisneramper LLP Top agencies SEC (Securities and Exchange Commission)	$111,450	<0.1%	Rank history: not on the FY2021 list, #100 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
75	Mcdemus & Co. LLC Top agencies DOI (Department of the Interior)	$107,289	<0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #45 in FY2025; up 3 since FY2023.
76	Crowe Horwath LLP Through Crowe LLP	$104,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
77	BDO Zambia Audit Services Top agencies USAID (US Agency for International Development)	$95,902	<0.1%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2025; new.
78	Keegan Linscott & Associates, PC Top agencies DOI (Department of the Interior)	$94,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
79	Sustainability Solutions PC Top agencies USAID (US Agency for International Development)	$84,120	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
80	Taboada & Asociados Sociedad Civil Top agencies DOS (Department of State)	$84,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	AVU Inc. Top agencies Army (Department of the Army)	$82,800	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
82	Teixeira & Associados Auditores Independentes Top agencies EOP (Executive Office of the President)	$76,837	<0.1%	Rank history: #100 in FY2021, #86 in FY2022, #82 in FY2023 and not on the FY2025 list; unchanged since FY2023.
83	Carmichael, Brasher, Tuvell & Company, P.C. Top agencies DOT (Department of Transportation)	$76,714	<0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #73 in FY2025; down 3 since FY2023.
84	Rocha & Company, PC Top agencies Morris K. Udall Foundation	$64,762	<0.1%	Rank history: #86 in FY2021, #83 in FY2022, #81 in FY2023 and #61 in FY2025; down 3 since FY2023.
85	Intelipath Services Group Inc Top agencies OPM (Office of Personnel Management)	$63,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2025; new.
86	UHY LLP Top agencies NASA (National Aeronautics and Space Administration)	$60,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2025; new.
87	Larkin & Associates PLLC Top agencies Navy (Department of the Navy)	$55,940	<0.1%	Rank history: not on the FY2021 list, #90 in FY2022, not on the FY2023 list and #82 in FY2025; returned.
88	Morales Y Morales Asociados Top agencies EOP (Executive Office of the President)	$48,772	<0.1%	Rank history: #90 in FY2021, not on the FY2022 list, #79 in FY2023 and not on the FY2025 list; down 9 since FY2023.
89	Jones and Company Professional Corporation Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) Navy (Department of the Navy)	$45,908	<0.1%	Rank history: #63 in FY2021, #66 in FY2022, not on the FY2023 list and #54 in FY2025; returned.
90	Valencia & Falla Auditorias Integrales S A S Top agencies EOP (Executive Office of the President)	$45,175	<0.1%	Rank history: not on the FY2021 list, #84 in FY2022, not on the FY2023 list and #76 in FY2025; returned.
91	ST. Michael's Inc. Top agencies Navy (Department of the Navy)	$42,389	<0.1%	Rank history: #77 in FY2021, not on the FY2022 list, #63 in FY2023 and not on the FY2025 list; down 28 since FY2023.
92	Harshwal & Company LLP Top agencies DOI (Department of the Interior)	$41,900	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	PKF Audisur SRL Top agencies EOP (Executive Office of the President)	$41,276	<0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023 and not on the FY2025 list; down 9 since FY2023.
94	Marcum LLP Top agencies SEC (Securities and Exchange Commission)	$41,250	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	IBS Management and Consultancy Services LLC Top agencies USAID (US Agency for International Development)	$41,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Pkfecuador & Co. C.l. Top agencies EOP (Executive Office of the President)	$36,390	<0.1%	Rank history: #96 in FY2021, #99 in FY2022, #96 in FY2023 and #80 in FY2025; unchanged since FY2023.
97	Mcconnell Jones Lanier & Murphy LLP Through Mcconnell & Jones L.L.P. Top agencies AbilityOne	$33,818	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Deva & Associates PC Top agencies NASA (National Aeronautics and Space Administration)	$30,180	<0.1%	Rank history: #62 in FY2021, #56 in FY2022, #73 in FY2023 and #57 in FY2025; down 25 since FY2023.
99	Harris Group Services, Inc. Top agencies HHS (Department of Health and Human Services)	$27,277	<0.1%	Rank history: #58 in FY2021, not on the FY2022–FY2023 lists and #75 in FY2025; up 4 since FY2023.
100	Deidiker Accounting & Consulting LLC Top agencies NTSB (National Transportation Safety Board)	$24,900	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 1 since FY2023.

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 $1.49 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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