Top 100 Government Accountability Office Contractors, FY2022

Name: Top 100 Government Accountability Office Contractors, FY2022
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 65% of FY2022 Government Accountability Office contract dollars

Contract obligations: $108,898,255 Net of deobligations, by the Government Accountability Office and its offices
Contractors: 142 Parent companies with an obligation
Largest contractor: Governmentcio LLC $23.8 million, 20.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Governmentcio LLC Through Advanced Technology Systems, Inc. Top NAICS codes 541512 Computer Systems Design Services	$23,826,329	20.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
2	EMCOR Group, Inc. 2 awardees, including Emcor Government Services, Inc. Top NAICS codes 561210 Facilities Support Services	$18,115,279	15.6%	Rank history: #1 in FY2021, #2 in FY2023, #2 in FY2024 and #3 in FY2025; down 1 since FY2021.
3	Buchanan & Edwards, Inc. Top NAICS codes 541512 Computer Systems Design Services	$8,100,209	7.0%	Rank history: #6 in FY2021, #6 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
4	American Security Programs Inc Top NAICS codes 561612 Security Guards and Patrol Services	$7,392,521	6.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
5	Insight Public Sector Inc. 2 awardees Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services	$4,266,094	3.7%	Rank history: #5 in FY2021, #7 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
6	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$4,101,975	3.5%	Rank history: #32 in FY2021, #3 in FY2023, #3 in FY2024 and #1 in FY2025; up 26 since FY2021.
7	Advanced Technology Systems Inc. Top NAICS codes 541512 Computer Systems Design Services	$2,451,184	2.1%	Rank history: #2 in FY2021, #1 in FY2023, #1 in FY2024 and not on the FY2025 list; down 5 since FY2021.
8	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$2,388,670	2.1%	Rank history: #9 in FY2021, #11 in FY2023, #13 in FY2024 and #37 in FY2025; up 1 since FY2021.
9	Serco Services Inc. Top NAICS codes 611710 Educational Support Services	$2,127,254	1.8%	Rank history: #88 in FY2021 and not on the FY2023–FY2025 lists; up 79 since FY2021.
10	Lumen Technologies, Inc. Through Lumen Technologies Government Solutions, Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$2,110,289	1.8%	Rank history: #10 in FY2021, #4 in FY2023, #5 in FY2024 and not on the FY2025 list; unchanged since FY2021.
11	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top NAICS codes 519190 All Other Information Services	$1,883,194	1.6%	Rank history: not on the FY2021 list, #12 in FY2023, #11 in FY2024 and not on the FY2025 list; new.
12	Serco North America (Holdings) Inc Through Serco Services Inc. Top NAICS codes 541330 Engineering Services 611710 Educational Support Services	$1,729,529	1.5%	Rank history: #8 in FY2021, #8 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
13	Versar Inc. 2 awardees, including Versar Security Systems, LLC Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$1,719,785	1.5%	Rank history: #21 in FY2021, #14 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
14	August Schell Enterprises, Inc. Top NAICS codes 541519 Other Computer Related Services	$1,589,399	1.4%	Rank history: #15 in FY2021, #20 in FY2023, #26 in FY2024 and #11 in FY2025; up 1 since FY2021.
15	Govsmart, Inc. Top NAICS codes 541519 Other Computer Related Services	$1,452,049	1.3%	Rank history: #12 in FY2021, #16 in FY2023, #10 in FY2024 and #15 in FY2025; down 3 since FY2021.
16	Pistis LLC Top NAICS codes 541512 Computer Systems Design Services	$1,451,520	1.3%	Rank history: #18 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
17	Arcadis N.V. Top NAICS codes 541330 Engineering Services	$1,202,582	1.0%	Rank history: #11 in FY2021, #19 in FY2023, #22 in FY2024 and not on the FY2025 list; down 6 since FY2021.
18	Thomson Reuters (Tax & Accounting) Inc. 2 awardees, including West Publishing Corporation Top NAICS codes 519190 All Other Information Services	$1,019,272	0.9%	Rank history: #17 in FY2021, #24 in FY2023, #44 in FY2024 and #51 in FY2025; down 1 since FY2021.
19	Mythics, LLC Through Emergent, LLC Top NAICS codes 541519 Other Computer Related Services	$932,292	0.8%	Rank history: #44 in FY2021, #30 in FY2023, #25 in FY2024 and #29 in FY2025; up 25 since FY2021.
20	Insi Cloud Inc. 2 awardees, including Pistis LLC Top NAICS codes 541511 Custom Computer Programming Services 541512 Computer Systems Design Services	$912,180	0.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
21	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing	$909,517	0.8%	Rank history: #16 in FY2021, #25 in FY2023, #15 in FY2024 and #17 in FY2025; down 5 since FY2021.
22	Kpmg L.L.P. Top NAICS codes 541211 Offices of Certified Public Accountants	$879,333	0.8%	Rank history: not on the FY2021 list, #23 in FY2023, #23 in FY2024 and not on the FY2025 list; new.
23	The Building People LLC 2 awardees Top NAICS codes 541614 Process, Physical Distribution, and Logistics Consulting Services 561210 Facilities Support Services	$829,426	0.7%	Rank history: #22 in FY2021, #15 in FY2023, #20 in FY2024 and #28 in FY2025; down 1 since FY2021.
24	Verizon Communications Inc. 2 awardees, including Verizon Federal Inc. and Cellco Partnership Top NAICS codes 517919 All Other Telecommunications 517312 Wireless Telecommunications Carriers (except Satellite)	$816,661	0.7%	Rank history: #13 in FY2021, #29 in FY2023, #39 in FY2024 and not on the FY2025 list; down 11 since FY2021.
25	Sikich CPA LLC Top NAICS codes 541211 Offices of Certified Public Accountants	$803,057	0.7%	Rank history: #7 in FY2021, #22 in FY2023, #17 in FY2024 and #18 in FY2025; down 18 since FY2021.
26	Chickasaw Health Consulting, LLC Top NAICS codes 541612 Human Resources Consulting Services	$770,661	0.7%	Rank history: #20 in FY2021, #31 in FY2023, not on the FY2024 list and #56 in FY2025; down 6 since FY2021.
27	Jacobs Engineering Group Inc. Top NAICS codes 541330 Engineering Services	$770,297	0.7%	Rank history: #14 in FY2021, #9 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
28	Cambridge Information Group Inc. Through Proquest LLC Top NAICS codes 519190 All Other Information Services	$585,310	0.5%	Rank history: not on the FY2021 list, not on the FY2023 list, #38 in FY2024 and not on the FY2025 list; new.
29	Ebsco Industries Inc. 3 awardees Top NAICS codes 519190 All Other Information Services	$570,645	0.5%	Rank history: #26 in FY2021, #35 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
30	National Academy of Sciences Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$567,461	0.5%	Rank history: #47 in FY2021, #56 in FY2023, #31 in FY2024 and not on the FY2025 list; up 17 since FY2021.
31	Stuart B. Consultants, Inc. Top NAICS codes 541930 Translation and Interpretation Services	$554,776	0.5%	Rank history: #30 in FY2021, #83 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
32	Ricoh Company,Ltd. Through Ricoh USA Inc. Top NAICS codes 333315 Photographic and Photocopying Equipment Manufacturing	$531,762	0.5%	Rank history: #36 in FY2021, #85 in FY2023, #74 in FY2024 and #69 in FY2025; up 4 since FY2021.
33	Gartner, Inc. Top NAICS codes 519120 Libraries and Archives	$518,283	0.4%	Rank history: #33 in FY2021, #46 in FY2023, #34 in FY2024 and #46 in FY2025; unchanged since FY2021.
34	Four LLC Top NAICS codes 541519 Other Computer Related Services	$509,355	0.4%	Rank history: #19 in FY2021, #13 in FY2023, #12 in FY2024 and #16 in FY2025; down 15 since FY2021.
35	Executive Information Systems, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$504,700	0.4%	Rank history: #31 in FY2021, #38 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
36	Red River Technology LLC 2 awardees, including Distributed Technology Group LLC Top NAICS codes 541519 Other Computer Related Services	$495,471	0.4%	Rank history: #51 in FY2021, #62 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2021.
37	Mcgraw Hill Financial Inc. Through S&P Global Market Intelligence LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$477,028	0.4%	Rank history: #43 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
38	Leadership Connect, Inc. Top NAICS codes 511140 Directory and Mailing List Publishers 519190 All Other Information Services	$426,500	0.4%	Rank history: #39 in FY2021, #41 in FY2023, #43 in FY2024 and #36 in FY2025; up 1 since FY2021.
39	Business Products Group Inc Top NAICS codes 541519 Other Computer Related Services	$416,182	0.4%	Rank history: not on the FY2021 list, #76 in FY2023, #37 in FY2024 and not on the FY2025 list; new.
40	Blue TECH Inc. Top NAICS codes 541519 Other Computer Related Services	$416,174	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
41	Fiscalnote, Inc. Through Cq-Roll Call, Inc. Top NAICS codes 519190 All Other Information Services	$406,971	0.4%	Rank history: #38 in FY2021, #45 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
42	Dell Federal Systems L.P. 2 awardees, including Dell Marketing L.P. Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services	$403,061	0.3%	Rank history: #4 in FY2021 and not on the FY2023–FY2025 lists; down 38 since FY2021.
43	Nana Regional Corporation Inc Through Affigent, LLC Top NAICS codes 541519 Other Computer Related Services	$363,823	0.3%	Rank history: #41 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
44	Victory Global Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$350,351	0.3%	Rank history: not on the FY2021 list, #58 in FY2023, #48 in FY2024 and not on the FY2025 list; new.
45	Optiv Federal Inc. Top NAICS codes 541513 Computer Facilities Management Services	$347,701	0.3%	Rank history: #42 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
46	Whitman Requardt & Associates LLP Top NAICS codes 541330 Engineering Services	$321,660	0.3%	Rank history: not on the FY2021 list, not on the FY2023 list, #29 in FY2024 and #73 in FY2025; new.
47	H.i.g. Capital Management Inc. Through Iron Bow Technologies, LLC Top NAICS codes 541519 Other Computer Related Services	$313,831	0.3%	Rank history: not on the FY2021 list, #51 in FY2023 and not on the FY2024–FY2025 lists; up 69 since FY2021.
48	Skillsoft Corporation 2 awardees, including Skillsoft (Us) LLC Top NAICS codes 511210 Software Publishers	$288,410	0.2%	Rank history: #46 in FY2021, #39 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
49	Black Knight Data & Analytics LLC Top NAICS codes 541910 Marketing Research and Public Opinion Polling	$285,000	0.2%	Rank history: #50 in FY2021, #42 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
50	Calloway & Associates, Inc. Top NAICS codes 541519 Other Computer Related Services	$274,413	0.2%	Rank history: #48 in FY2021, #55 in FY2023, #65 in FY2024 and not on the FY2025 list; down 2 since FY2021.
51	Agilquest Corporation Top NAICS codes 541519 Other Computer Related Services	$266,076	0.2%	Rank history: #45 in FY2021, #60 in FY2023, #50 in FY2024 and #48 in FY2025; down 6 since FY2021.
52	Sinclair Broadcast Group Inc. Through Politico, LLC Top NAICS codes 519190 All Other Information Services 519130 Internet Publishing and Broadcasting and Web Search Portals	$256,450	0.2%	Rank history: #56 in FY2021, #59 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
53	Flywheel Data LLC Top NAICS codes 541519 Other Computer Related Services	$235,029	0.2%	Rank history: not on the FY2021 list, #68 in FY2023, #36 in FY2024 and #31 in FY2025; new.
54	RHG Group, Inc. Top NAICS codes 485999 All Other Transit and Ground Passenger Transportation	$221,210	0.2%	Rank history: #52 in FY2021, #63 in FY2023, #54 in FY2024 and #85 in FY2025; down 2 since FY2021.
55	JDG Associates Ltd Top NAICS codes 541612 Human Resources Consulting Services	$217,000	0.2%	Rank history: #58 in FY2021, #74 in FY2023, #53 in FY2024 and not on the FY2025 list; up 3 since FY2021.
56	Trigent Solutions Inc. Top NAICS codes 541430 Graphic Design Services	$211,425	0.2%	Rank history: #35 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; down 21 since FY2021.
57	Bloomberg LP 2 awardees, including Bloomberg Finance LP and Bloomberg Industry Group, Inc. Top NAICS codes 519190 All Other Information Services	$202,554	0.2%	Rank history: #54 in FY2021, #73 in FY2023, #88 in FY2024 and #70 in FY2025; down 3 since FY2021.
58	CDW Corporation Through CDW Government LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$192,152	0.2%	Rank history: #25 in FY2021, #32 in FY2023, #93 in FY2024 and not on the FY2025 list; down 33 since FY2021.
59	Larsonallen LLP Through Cliftonlarsonallen LLP Top NAICS codes 541219 Other Accounting Services	$188,284	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	Lyme Computer Systems, Inc. Top NAICS codes 541519 Other Computer Related Services	$185,799	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
61	Opencorporates Ltd Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$168,750	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
62	Sunplus Data Group, Inc. Top NAICS codes 561320 Temporary Help Services	$158,808	0.1%	Rank history: #70 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
63	Tvar Solutions, LLC Top NAICS codes 541519 Other Computer Related Services	$131,685	0.1%	Rank history: #67 in FY2021, #70 in FY2023, #68 in FY2024 and not on the FY2025 list; up 4 since FY2021.
64	Fedex Corp 2 awardees, including Federal Express Corp Top NAICS codes 492110 Couriers and Express Delivery Services	$130,415	0.1%	Rank history: #75 in FY2021, #53 in FY2023, #56 in FY2024 and #66 in FY2025; up 11 since FY2021.
65	Omni Business Systems, Inc. Top NAICS codes 532420 Office Machinery and Equipment Rental and Leasing	$126,880	0.1%	Rank history: #55 in FY2021, #67 in FY2023, #61 in FY2024 and #54 in FY2025; down 10 since FY2021.
66	Talon Expeditionary Services, LLC Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$122,670	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #83 in FY2025; new.
67	Zones, LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$118,151	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
68	Ipsos Public Affairs, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$115,518	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	Accelera Solutions Inc. Top NAICS codes 541519 Other Computer Related Services	$112,450	0.1%	Rank history: #53 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
70	Reed Elsevier Inc. 2 awardees, including Relx Inc. and Lnrs Data Services Inc. Top NAICS codes 519190 All Other Information Services 488190 Other Support Activities for Air Transportation	$105,862	0.1%	Rank history: #68 in FY2021, #96 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
71	Coley & Associates, Inc. Top NAICS codes 541519 Other Computer Related Services	$99,369	0.1%	Rank history: not on the FY2021 list, #81 in FY2023, #80 in FY2024 and #64 in FY2025; new.
72	Crest Craft Co Top NAICS codes 339999 All Other Miscellaneous Manufacturing	$89,762	0.1%	Rank history: not on the FY2021 list, #71 in FY2023, not on the FY2024 list and #71 in FY2025; new.
73	CW Government Travel Inc. Top NAICS codes 481111 Scheduled Passenger Air Transportation	$87,708	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #87 in FY2025; new.
74	Info-Tech Research Group Inc. Top NAICS codes 541519 Other Computer Related Services	$86,112	0.1%	Rank history: #73 in FY2021, #79 in FY2023, #79 in FY2024 and not on the FY2025 list; down 1 since FY2021.
75	Inside Washington Publishers LLC Top NAICS codes 519190 All Other Information Services	$86,000	0.1%	Rank history: #74 in FY2021, #80 in FY2023, #76 in FY2024 and #61 in FY2025; down 1 since FY2021.
76	Bahfed Corp Top NAICS codes 541519 Other Computer Related Services	$77,832	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #59 in FY2025; new.
77	Metgreen Solutions Inc. Top NAICS codes 541519 Other Computer Related Services	$77,800	0.1%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
78	Tyler Technologies, Inc. Through Tyler Federal, LLC Top NAICS codes 541512 Computer Systems Design Services 511210 Software Publishers	$69,879	0.1%	Rank history: not on the FY2021 list, #57 in FY2023, #73 in FY2024 and #57 in FY2025; new.
79	Tax Analysts Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$69,405	0.1%	Rank history: #80 in FY2021, #86 in FY2023, #81 in FY2024 and #65 in FY2025; up 1 since FY2021.
80	ACG Systems, Inc. Top NAICS codes 334290 Other Communications Equipment Manufacturing	$66,592	0.1%	Rank history: #79 in FY2021, #87 in FY2023, not on the FY2024 list and #58 in FY2025; down 1 since FY2021.
81	Burrelle's Information Services, LLC Top NAICS codes 519190 All Other Information Services	$65,250	0.1%	Rank history: not on the FY2021 list, #88 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2021.
82	Dun & Bradstreet, Inc. Top NAICS codes 519190 All Other Information Services	$64,274	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
83	DH Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services	$63,464	0.1%	Rank history: #82 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
84	Healthequity, Inc. Top NAICS codes 524292 Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds	$61,504	0.1%	Rank history: #85 in FY2021, #97 in FY2023, #91 in FY2024 and #94 in FY2025; up 1 since FY2021.
85	Self Governance Communication & Education Tribal Consortium Inc. Top NAICS codes 813920 Professional Organizations	$59,735	0.1%	Rank history: #78 in FY2021, #77 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
86	Cynuria Consulting LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$59,540	0.1%	Rank history: not on the FY2021 list, #90 in FY2023, #75 in FY2024 and not on the FY2025 list; new.
87	Ma Federal, Inc. Through Igov Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services	$58,112	0.1%	Rank history: #84 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
88	Vantage Human Resource Services, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$56,577	<0.1%	Rank history: #63 in FY2021, #72 in FY2023 and not on the FY2024–FY2025 lists; down 25 since FY2021.
89	Soil and Land Use Technology, Inc. Top NAICS codes 541330 Engineering Services	$53,965	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #62 in FY2025; up 46 since FY2021.
90	E-Logic, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$53,373	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	Wolters Kluwer N.V. Through CCH Incorporated Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$51,764	<0.1%	Rank history: #87 in FY2021, #91 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
92	National Institute of Transition Planning, Inc. Top NAICS codes 541612 Human Resources Consulting Services	$51,650	<0.1%	Rank history: #86 in FY2021, #94 in FY2023, not on the FY2024 list and #84 in FY2025; down 6 since FY2021.
93	Tyler Federal, LLC Top NAICS codes 511210 Software Publishers	$51,175	<0.1%	Rank history: #34 in FY2021, not on the FY2023 list, #67 in FY2024 and not on the FY2025 list; down 59 since FY2021.
94	Government Acquisitions LLC Top NAICS codes 541519 Other Computer Related Services	$44,927	<0.1%	Rank history: #89 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
95	Caseware USA Inc. Top NAICS codes 511210 Software Publishers	$41,022	<0.1%	Rank history: #95 in FY2021, #95 in FY2023, #92 in FY2024 and not on the FY2025 list; unchanged since FY2021.
96	Immixtechnology Inc. Top NAICS codes 541519 Other Computer Related Services	$39,750	<0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
97	Unison Virtual Acquisition Office LLC Top NAICS codes 519190 All Other Information Services	$39,500	<0.1%	Rank history: #94 in FY2021, #98 in FY2023, #85 in FY2024 and #72 in FY2025; down 3 since FY2021.
98	Goodwill Easter Seals Miami Valley Top NAICS codes 561720 Janitorial Services	$37,198	<0.1%	Rank history: #98 in FY2021, #100 in FY2023, #96 in FY2024 and not on the FY2025 list; unchanged since FY2021.
99	William S. Hein & Co., Inc. Top NAICS codes 519190 All Other Information Services	$36,160	<0.1%	Rank history: #99 in FY2021, not on the FY2023 list, #98 in FY2024 and #82 in FY2025; unchanged since FY2021.
100	Asterion, LLC Top NAICS codes 213112 Support Activities for Oil and Gas Operations	$33,750	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 5 since FY2021.

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100 of 142 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 $116 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 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 Government Accountability Office contractors in FY2022?

1. Governmentcio LLC ($23.8M), 2. EMCOR Group, Inc. ($18.1M), 3. Buchanan & Edwards, Inc. ($8.1M), 4. American Security Programs Inc ($7.39M), 5. Insight Public Sector Inc. ($4.27M), 6. Four Points Technology, L.L.C. ($4.1M), 7. Advanced Technology Systems Inc. ($2.45M), 8. New TECH Solutions, Inc. ($2.39M), 9. Serco Services Inc. ($2.13M), 10. Lumen Technologies, Inc. ($2.11M).

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