Top 98 Government Accountability Office Contractors, Jul 2025–Jun 2026

Name: Top 98 Government Accountability Office Contractors, Jul 2025–Jun 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Agency page on GovTribe

The top 10 won 63% of Government Accountability Office contract dollars from July 2025 through June 2026

Contract obligations: $105,555,496 Net of deobligations, by the Government Accountability Office and its offices
Contractors: 106 Parent companies with an obligation
Largest contractor: Emcor Group Inc. $15.8 million, 12.8% of obligations
Data as of: Oct 20, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 98 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Emcor Group Inc. Through Emcor Government Services, Inc. Top NAICS codes 561210 Facilities Support Services	$15,757,032	12.8%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #3 in FY2025; up 1 since Jul 2024–Jun 2025.
2	Science Applications International Corporation Top NAICS codes 541512 Computer Systems Design Services	$14,544,170	11.8%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Jul 2024–Jun 2025.
3	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$11,391,228	9.3%	Rank history: #32 in FY2021, #6 in FY2022, #3 in FY2023, #3 in FY2024 and #1 in FY2025; down 2 since Jul 2024–Jun 2025.
4	Lumen Technologies Government Solutions, Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$8,844,077	7.2%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #4 in FY2025; up 23 since Jul 2024–Jun 2025.
5	Inter-CON Security Systems Inc. Top NAICS codes 561612 Security Guards and Patrol Services	$8,818,123	7.2%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; up 1 since Jul 2024–Jun 2025.
6	Salient Crgt, Inc. Top NAICS codes 541512 Computer Systems Design Services	$7,206,944	5.9%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; down 1 since Jul 2024–Jun 2025.
7	Jacobs Engineering Group Inc. Top NAICS codes 541330 Engineering Services	$3,643,098	3.0%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and #8 in FY2025; up 34 since Jul 2024–Jun 2025.
8	Serco Inc Top NAICS codes 611710 Educational Support Services	$2,823,767	2.3%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #9 in FY2025; unchanged since Jul 2024–Jun 2025.
9	August Schell Enterprises, Inc. Top NAICS codes 541519 Other Computer Related Services	$2,820,251	2.3%	Rank history: #15 in FY2021, #14 in FY2022, #20 in FY2023, #26 in FY2024 and #11 in FY2025; up 2 since Jul 2024–Jun 2025.
10	Dell Technologies Inc. Through Dell Federal Systems L.P Top NAICS codes 541519 Other Computer Related Services	$1,992,675	1.6%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #20 in FY2025; up 7 since Jul 2024–Jun 2025.
11	CGI Federal Inc. Top NAICS codes 519190 All Other Information Services	$1,971,516	1.6%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; up 2 since Jul 2024–Jun 2025.
12	James G Davis Construction Corp Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,878,257	1.5%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023, #4 in FY2024 and #14 in FY2025; down 8 since Jul 2024–Jun 2025.
13	Regan Technologies Corp Top NAICS codes 541519 Other Computer Related Services	$1,700,000	1.4%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023, #19 in FY2024 and #22 in FY2025; up 8 since Jul 2024–Jun 2025.
14	Versar Security Systems, LLC Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$1,630,824	1.3%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #10 in FY2025; up 10 since Jul 2024–Jun 2025.
15	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$1,317,886	1.1%	Rank history: #16 in FY2021, #21 in FY2022, #25 in FY2023, #15 in FY2024 and #17 in FY2025; unchanged since Jul 2024–Jun 2025.
16	Countertrade Products, Inc. Top NAICS codes 541519 Other Computer Related Services	$1,184,260	1.0%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Jul 2024–Jun 2025.
17	Colossal Contracting LLC Top NAICS codes 541519 Other Computer Related Services	$1,177,135	1.0%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #23 in FY2025; up 6 since Jul 2024–Jun 2025.
18	Software Information Resource Corp Top NAICS codes 541519 Other Computer Related Services	$994,253	0.8%	Rank history: #23 in FY2021, not on the FY2022 list, #21 in FY2023, #77 in FY2024 and #44 in FY2025; up 30 since Jul 2024–Jun 2025.
19	Bahfed Corp Top NAICS codes 541519 Other Computer Related Services	$928,443	0.8%	Rank history: not on the FY2021 list, #76 in FY2022, not on the FY2023–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
20	Four LLC Top NAICS codes 541519 Other Computer Related Services	$909,280	0.7%	Rank history: #19 in FY2021, #34 in FY2022, #13 in FY2023, #12 in FY2024 and #16 in FY2025; down 4 since Jul 2024–Jun 2025.
21	Kpmg LLP Top NAICS codes 541211 Offices of Certified Public Accountants	$893,205	0.7%	Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; down 1 since Jul 2024–Jun 2025.
22	Expediteinfotech, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$843,600	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
23	Flywheel Data LLC Top NAICS codes 541519 Other Computer Related Services	$831,210	0.7%	Rank history: not on the FY2021 list, #53 in FY2022, #68 in FY2023, #36 in FY2024 and #31 in FY2025; up 10 since Jul 2024–Jun 2025.
24	Mythics Inc. Through Emergent, LLC Top NAICS codes 541519 Other Computer Related Services	$771,524	0.6%	Rank history: #44 in FY2021, #19 in FY2022, #30 in FY2023, #25 in FY2024 and #29 in FY2025; up 5 since Jul 2024–Jun 2025.
25	Leadership Connect, Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$760,300	0.6%	Rank history: #39 in FY2021, #38 in FY2022, #41 in FY2023, #43 in FY2024 and #36 in FY2025; up 22 since Jul 2024–Jun 2025.
26	Prime Response, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$755,737	0.6%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; new, not ranked in Jul 2024–Jun 2025.
27	Cherokee Nation Red Wing, L.L.C. Through Cherokee Accelerated Solutions, L.l.c Top NAICS codes 541612 Human Resources Consulting Services	$730,474	0.6%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; up 3 since Jul 2024–Jun 2025.
28	Black Knight Data & Analytics LLC Top NAICS codes 541910 Marketing Research and Public Opinion Polling	$668,775	0.5%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #38 in FY2025; up 10 since Jul 2024–Jun 2025.
29	Whitman Requardt & Associates LLP Top NAICS codes 541330 Engineering Services	$644,608	0.5%	Rank history: not on the FY2021 list, #46 in FY2022, not on the FY2023 list, #29 in FY2024 and #73 in FY2025; up 7 since Jul 2024–Jun 2025.
30	Lexisnexis Special Services Inc 2 awardees, including Relx Inc. and Elsevier Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$561,599	0.5%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, #28 in FY2024 and #33 in FY2025; up 4 since Jul 2024–Jun 2025.
31	Immersive Concepts L.L.C. Top NAICS codes 561210 Facilities Support Services	$500,812	0.4%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #19 in FY2025; down 21 since Jul 2024–Jun 2025.
32	CQ-Roll Call Inc Top NAICS codes 519190 All Other Information Services	$432,959	0.4%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; up 7 since Jul 2024–Jun 2025.
33	Dexian, LLC Through Disys Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$423,430	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
34	Verizon 2 awardees, including Cellco Partnership and Verizon Federal Inc. Top NAICS codes 517312 Wireless Telecommunications Carriers (except Satellite) 517919 All Other Telecommunications 517810 All Other Telecommunications	$404,833	0.3%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; down 15 since Jul 2024–Jun 2025.
35	Buchanan & Edwards Inc. Top NAICS codes 541512 Computer Systems Design Services	$369,606	0.3%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #68 in FY2025; new, not ranked in Jul 2024–Jun 2025.
36	The Building People LLC Top NAICS codes 561210 Facilities Support Services	$369,569	0.3%	Rank history: #22 in FY2021, #23 in FY2022, #15 in FY2023, #20 in FY2024 and #28 in FY2025; up 9 since Jul 2024–Jun 2025.
37	Optiv Federal Inc. Top NAICS codes 541519 Other Computer Related Services	$339,299	0.3%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; down 5 since Jul 2024–Jun 2025.
38	Capital Technology Group LLC Top NAICS codes 541511 Custom Computer Programming Services	$303,832	0.2%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
39	DPV Transportation, Inc. Top NAICS codes 485999 All Other Transit and Ground Passenger Transportation	$296,757	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
40	Washington Metropolitan Area Transit Authority Top NAICS codes 485111 Mixed Mode Transit Systems	$285,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023, #63 in FY2024 and #41 in FY2025; up 3 since Jul 2024–Jun 2025.
41	Skillsoft (Us) LLC Top NAICS codes 511210 Software Publishers	$271,775	0.2%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #42 in FY2025; down 6 since Jul 2024–Jun 2025.
42	Precise Systems Inc. Top NAICS codes 541430 Graphic Design Services	$270,950	0.2%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #45 in FY2025; up 9 since Jul 2024–Jun 2025.
43	Terrestris, LLC Top NAICS codes 541511 Custom Computer Programming Services	$258,835	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
44	Politico, LLC Top NAICS codes 519290 Web Search Portals and All Other Information Services	$247,890	0.2%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #47 in FY2025; up 26 since Jul 2024–Jun 2025.
45	Hecker Fink LLP Top NAICS codes 541199 All Other Legal Services	$227,570	0.2%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 1 since Jul 2024–Jun 2025.
46	Insight Public Sector Inc. Top NAICS codes 541519 Other Computer Related Services	$218,400	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
47	Sikich CPA LLC Top NAICS codes 541219 Other Accounting Services	$198,790	0.2%	Rank history: #7 in FY2021, #25 in FY2022, #22 in FY2023, #17 in FY2024 and #18 in FY2025; down 29 since Jul 2024–Jun 2025.
48	CTG Federal, LLC Top NAICS codes 541519 Other Computer Related Services	$191,665	0.2%	Rank history: not on the FY2021–FY2023 lists, #46 in FY2024 and #50 in FY2025; up 7 since Jul 2024–Jun 2025.
49	S&P Global Market Intelligence LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$186,790	0.2%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #52 in FY2025; up 7 since Jul 2024–Jun 2025.
50	Proquest LLC Top NAICS codes 519290 Web Search Portals and All Other Information Services	$186,308	0.2%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; down 10 since Jul 2024–Jun 2025.
51	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$185,559	0.2%	Rank history: #9 in FY2021, #8 in FY2022, #11 in FY2023, #13 in FY2024 and #37 in FY2025; down 23 since Jul 2024–Jun 2025.
52	ACG Systems, Inc. Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$180,901	0.1%	Rank history: #79 in FY2021, #80 in FY2022, #87 in FY2023, not on the FY2024 list and #58 in FY2025; up 16 since Jul 2024–Jun 2025.
53	Thomson Reuters (Tax & Accounting), Inc. Top NAICS codes 561492 Court Reporting and Stenotype Services	$180,606	0.1%	Rank history: #17 in FY2021, #18 in FY2022, #24 in FY2023, #44 in FY2024 and #51 in FY2025; down 1 since Jul 2024–Jun 2025.
54	Gartner, Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$166,842	0.1%	Rank history: #33 in FY2021, #33 in FY2022, #46 in FY2023, #34 in FY2024 and #46 in FY2025; down 17 since Jul 2024–Jun 2025.
55	Omni Business Systems, Inc. Top NAICS codes 532420 Office Machinery and Equipment Rental and Leasing	$160,920	0.1%	Rank history: #55 in FY2021, #65 in FY2022, #67 in FY2023, #61 in FY2024 and #54 in FY2025; up 2 since Jul 2024–Jun 2025.
56	Opencorporates Holding Ltd Through Opencorporates Ltd Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$156,094	0.1%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023, #62 in FY2024 and #55 in FY2025; up 2 since Jul 2024–Jun 2025.
57	Fedex Corp Through Federal Express Corporation Top NAICS codes 492110 Couriers and Express Delivery Services	$133,171	0.1%	Rank history: #75 in FY2021, #64 in FY2022, #53 in FY2023, #56 in FY2024 and #66 in FY2025; up 18 since Jul 2024–Jun 2025.
58	Alden Law Group PLLC Top NAICS codes 541199 All Other Legal Services	$126,133	0.1%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and #53 in FY2025; up 20 since Jul 2024–Jun 2025.
59	Ebsco Information Services, LLC Top NAICS codes 519290 Web Search Portals and All Other Information Services	$124,640	0.1%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #60 in FY2025; up 5 since Jul 2024–Jun 2025.
60	V3Gate, LLC Top NAICS codes 541519 Other Computer Related Services	$102,452	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
61	Fors Marsh Group LLC Top NAICS codes 541910 Marketing Research and Public Opinion Polling	$97,219	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
62	Tax Analysts Top NAICS codes 519290 Web Search Portals and All Other Information Services	$90,411	0.1%	Rank history: #80 in FY2021, #79 in FY2022, #86 in FY2023, #81 in FY2024 and #65 in FY2025; up 11 since Jul 2024–Jun 2025.
63	Agility PR Solutions LLC Top NAICS codes 519290 Web Search Portals and All Other Information Services	$87,836	0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 8 since Jul 2024–Jun 2025.
64	Metrostudy, Inc. Top NAICS codes 541519 Other Computer Related Services	$75,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Jul 2024–Jun 2025.
65	Bloomberg LP Through Bloomberg Industry Group, Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$68,820	0.1%	Rank history: #54 in FY2021, #57 in FY2022, #73 in FY2023, not on the FY2024 list and #70 in FY2025; up 16 since Jul 2024–Jun 2025.
66	Crest Craft Co Top NAICS codes 339999 All Other Miscellaneous Manufacturing	$57,802	<0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #71 in FY2023, not on the FY2024 list and #71 in FY2025; up 14 since Jul 2024–Jun 2025.
67	Caseware USA Inc. Top NAICS codes 511210 Software Publishers	$49,862	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 20 since Jul 2024–Jun 2025.
68	Lnrs Data Services Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation	$45,473	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 25 since Jul 2024–Jun 2025.
69	Wingswept, LLC Top NAICS codes 511210 Software Publishers	$45,468	<0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023, #94 in FY2024 and #78 in FY2025; up 23 since Jul 2024–Jun 2025.
70	Economic Systems Inc. Top NAICS codes 511210 Software Publishers 541612 Human Resources Consulting Services	$45,151	<0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; up 34 since Jul 2024–Jun 2025.
71	SHI International Corp. Top NAICS codes 541519 Other Computer Related Services	$44,456	<0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	Employee Confidential LLC Top NAICS codes 541511 Custom Computer Programming Services	$40,326	<0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Jul 2024–Jun 2025.
73	William S. Hein & Co., Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$39,870	<0.1%	Rank history: #99 in FY2021, #99 in FY2022, not on the FY2023 list, #98 in FY2024 and #82 in FY2025; up 21 since Jul 2024–Jun 2025.
74	American Society for Testing and Materials Top NAICS codes 519290 Web Search Portals and All Other Information Services	$39,530	<0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Jul 2024–Jun 2025.
75	Panamerica Computers, Inc. Top NAICS codes 541519 Other Computer Related Services	$37,400	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76	Bankers Business Management Services, Inc. Top NAICS codes 561499 All Other Business Support Services	$36,007	<0.1%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; up 30 since Jul 2024–Jun 2025.
77	Tyler Technologies, Inc. Through Tyler Federal, LLC Top NAICS codes 511210 Software Publishers	$34,616	<0.1%	Rank history: not on the FY2021 list, #78 in FY2022, #57 in FY2023, #73 in FY2024 and #57 in FY2025; down 17 since Jul 2024–Jun 2025.
78	Integration Technologies Group, Inc. Top NAICS codes 541519 Other Computer Related Services	$28,230	<0.1%	Rank history: #49 in FY2021, not on the FY2022–FY2024 lists and #86 in FY2025; new, not ranked in Jul 2024–Jun 2025.
79	Healthequity, Inc. Top NAICS codes 524292 Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds	$26,418	<0.1%	Rank history: #85 in FY2021, #84 in FY2022, #97 in FY2023, #91 in FY2024 and #94 in FY2025; up 34 since Jul 2024–Jun 2025.
80	Talon Expeditionary Services, LLC Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$26,149	<0.1%	Rank history: not on the FY2021 list, #66 in FY2022, not on the FY2023–FY2024 lists and #83 in FY2025; up 31 since Jul 2024–Jun 2025.
81	Heritage Reporting Corporation Top NAICS codes 561320 Temporary Help Services	$24,485	<0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, #97 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
82	Institute of Electrical & Electronics Engineers Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$23,490	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 17 since Jul 2024–Jun 2025.
83	Softthink Solutions Inc. Top NAICS codes 541511 Custom Computer Programming Services	$20,416	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Jul 2024–Jun 2025.
84	RHG Group, Inc. Top NAICS codes 485999 All Other Transit and Ground Passenger Transportation	$17,306	<0.1%	Rank history: #52 in FY2021, #54 in FY2022, #63 in FY2023, #54 in FY2024 and #85 in FY2025; down 23 since Jul 2024–Jun 2025.
85	Accessagility LLC Top NAICS codes 541519 Other Computer Related Services	$16,233	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
86	West Publishing Corporation Top NAICS codes 519290 Web Search Portals and All Other Information Services	$15,587	<0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 19 since Jul 2024–Jun 2025.
87	BPS Ventures II LLC Top NAICS codes 511210 Software Publishers	$15,495	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
88	Sensa Solutions, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$11,435	<0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 21 since Jul 2024–Jun 2025.
89	Identity Theft Guard Solutions, Inc. Top NAICS codes 561450 Credit Bureaus	$11,165	<0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 21 since Jul 2024–Jun 2025.
90	Neal R. Gross and Company, Inc. Top NAICS codes 561320 Temporary Help Services	$10,940	<0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 30 since Jul 2024–Jun 2025.
91	Oclc, Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$10,474	<0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 12 since Jul 2024–Jun 2025.
92	Metgreen Solutions Inc. Top NAICS codes 541519 Other Computer Related Services	$8,290	<0.1%	Rank history: #77 in FY2021, #77 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
93	Ewavr Partners LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$8,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 19 since Jul 2024–Jun 2025.
94	Atmos Solutions Inc. Top NAICS codes 541330 Engineering Services	$6,096	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	Alvarez LLC Top NAICS codes 541519 Other Computer Related Services	$5,506	<0.1%	Rank history: not on the FY2021–FY2023 lists, #90 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
96	Lyme Computer Systems, Inc. Top NAICS codes 541519 Other Computer Related Services	$4,800	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
97	American Registry for Internet Numbers, Ltd. Top NAICS codes 541519 Other Computer Related Services	$4,410	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
98	Shield Security Systems, L.L.C. Top NAICS codes 334290 Other Communications Equipment Manufacturing	$4,158	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 20 since Jul 2024–Jun 2025.

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98 of 106 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 $123 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
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 Government Accountability Office contractors in Jul 2025–Jun 2026?

1. Emcor Group Inc. ($15.8M), 2. Science Applications International Corporation ($14.5M), 3. Four Points Technology, L.L.C. ($11.4M), 4. Lumen Technologies Government Solutions, Inc. ($8.84M), 5. Inter-CON Security Systems Inc. ($8.82M), 6. Salient Crgt, Inc. ($7.21M), 7. Jacobs Engineering Group Inc. ($3.64M), 8. Serco Inc ($2.82M), 9. August Schell Enterprises, Inc. ($2.82M), 10. Dell Technologies Inc. ($1.99M).

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