Top 100 Contractors in NAICS 561611: Investigation and Personal Background Check Services, FY2021

Name: Top 100 Contractors in NAICS 561611: Investigation and Personal Background Check Services, FY2021
Creator: GovTribe

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

The top 10 won 80% of FY2021 NAICS 561611 contract dollars

Contract obligations: $832,741,189 Net of deobligations, by contracts coded NAICS 561611
Contractors: 345 Parent companies with an obligation
Largest contractor: CACI International Inc. $234 million, 27.1% 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	CACI International Inc. 2 awardees, including Caci Premier Technology, LLC and Caci, Inc. - Federal Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$234,361,870	27.1%	Rank history: #2 in FY2022, #2 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2020.
2	Perspecta Inc. Through Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$181,279,740	21.0%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
3	Securitas AB Through Securitas Critical Infrastructure Services, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$87,059,784	10.1%	Rank history: #3 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
4	Asrc Federal Professional Services, LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$71,813,085	8.3%	Rank history: #6 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
5	Protection Strategies Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$25,444,876	2.9%	Rank history: #4 in FY2022, #3 in FY2023, #6 in FY2024 and #7 in FY2025; up 1 since FY2020.
6	Sullivan Cove Consultants, LLC Top agencies DOJ (Department of Justice)	$23,409,304	2.7%	Rank history: #5 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
7	HP Enterprise Services LLC Through Peraton Risk Decision Inc. Top agencies DHS (Department of Homeland Security)	$21,071,409	2.4%	Rank history: #1 in FY2022, #1 in FY2023, #3 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
8	Nana Regional Corporation Inc Through Rivertech LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$17,448,277	2.0%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
9	Iworks Corp Top agencies DCSA (Defense Counterintelligence and Security Agency)	$16,686,139	1.9%	Rank history: #8 in FY2022, not on the FY2023 list, #9 in FY2024 and #9 in FY2025; new, not ranked in FY2020.
10	Accenture Federal Services LLC Top agencies Commerce (Department of Commerce)	$14,298,329	1.7%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
11	Capital Center for Credibility Assessment Corporation Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$13,018,183	1.5%	Rank history: #7 in FY2022, #12 in FY2023, #19 in FY2024 and #14 in FY2025; up 3 since FY2020.
12	Madison Associates Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) DOS (Department of State)	$12,355,736	1.4%	Rank history: #9 in FY2022, #7 in FY2023, #8 in FY2024 and #3 in FY2025; unchanged since FY2020.
13	Professional Risk Management, Inc. Top agencies DOJ (Department of Justice)	$12,238,783	1.4%	Rank history: #10 in FY2022, #8 in FY2023, #5 in FY2024 and #4 in FY2025; down 2 since FY2020.
14	Equifax Inc. Through Equifax Workforce Solutions LLC Top agencies SSA (Social Security Administration) DCSA (Defense Counterintelligence and Security Agency) DOJ (Department of Justice)	$7,375,353	0.9%	Rank history: #15 in FY2022, #10 in FY2023, #86 in FY2024 and not on the FY2025 list; down 1 since FY2020.
15	Anasec, Inc. Top agencies DHS (Department of Homeland Security)	$7,072,973	0.8%	Rank history: #27 in FY2022, #22 in FY2023, #20 in FY2024 and #15 in FY2025; up 3 since FY2020.
16	Five Stones Intelligence Inc. Top agencies DOJ (Department of Justice) DOS (Department of State)	$6,928,054	0.8%	Rank history: #12 in FY2022, #11 in FY2023, #11 in FY2024 and #13 in FY2025; up 6 since FY2020.
17	Potomac River Group, LLC Top agencies DOJ (Department of Justice)	$5,769,708	0.7%	Rank history: #18 in FY2022, #16 in FY2023, #21 in FY2024 and #39 in FY2025; down 1 since FY2020.
18	EAP Consultants, LLC Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration) DOI (Department of the Interior)	$5,636,422	0.7%	Rank history: #16 in FY2022, #14 in FY2023, #13 in FY2024 and #21 in FY2025; up 1 since FY2020.
19	Triple Canopy Inc. Through Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration)	$5,534,337	0.6%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
20	Parker Tide LLC Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury) HUD (Department of Housing and Urban Development)	$4,782,449	0.6%	Rank history: #19 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
21	Emsi Holding Company Through Coventbridge (USA) LLC Top agencies USDA (Department of Agriculture)	$4,493,064	0.5%	Rank history: #14 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
22	Information Systems & Networks Corporation Top agencies DHS (Department of Homeland Security)	$4,082,876	0.5%	Rank history: #17 in FY2022, #18 in FY2023, #24 in FY2024 and #11 in FY2025; new, not ranked in FY2020.
23	Constellis Group, Inc. Through Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration)	$3,770,501	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Excygent, LLC Top agencies Treasury (Department of the Treasury)	$3,499,376	0.4%	Rank history: #21 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
25	Global Health Assurance Partnership, LLC Top agencies USAID (US Agency for International Development)	$2,751,210	0.3%	Rank history: #25 in FY2022, #24 in FY2023, not on the FY2024 list and #45 in FY2025; down 1 since FY2020.
26	The Washington Center for Internships and Academic Seminars Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) DOL (Department of Labor)	$2,375,197	0.3%	Rank history: #30 in FY2022, #26 in FY2023, #30 in FY2024 and not on the FY2025 list; up 9 since FY2020.
27	The Ross Agency, Inc. Top agencies VA (Department of Veterans Affairs)	$2,251,266	0.3%	Rank history: #26 in FY2022, #20 in FY2023, #14 in FY2024 and #16 in FY2025; up 21 since FY2020.
28	Vertical Screen, Inc. Through Fieldprint Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$2,038,453	0.2%	Rank history: #20 in FY2022, #15 in FY2023, #22 in FY2024 and not on the FY2025 list; up 21 since FY2020.
29	Crossroads Mediation Services, Inc. Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$1,950,268	0.2%	Rank history: #29 in FY2022, #31 in FY2023, #27 in FY2024 and #29 in FY2025; down 4 since FY2020.
30	Blocktrace, LLC Top agencies Treasury (Department of the Treasury)	$1,946,080	0.2%	Rank history: #22 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
31	Celerity Government Solutions LLC Top agencies DCSA (Defense Counterintelligence and Security Agency) Navy (Department of the Navy)	$1,839,497	0.2%	Rank history: not on the FY2022 list, #37 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
32	Qintel LLC Top agencies DHS (Department of Homeland Security)	$1,500,000	0.2%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
33	Creative It Solutions LLC Top agencies HHS (Department of Health and Human Services)	$1,368,012	0.2%	Rank history: #36 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
34	Vius, LLC Top agencies DHS (Department of Homeland Security)	$1,251,622	0.1%	Rank history: #40 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
35	Guardian Defense Group, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$1,227,685	0.1%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
36	The Law Offices of Stuart L. Plotnick, LLC Top agencies USDA (Department of Agriculture) Commerce (Department of Commerce) DOT (Department of Transportation)	$1,209,449	0.1%	Rank history: #37 in FY2022, #38 in FY2023, #43 in FY2024 and not on the FY2025 list; up 1 since FY2020.
37	Inquiries Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$1,087,435	0.1%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
38	Government Retirement & Benefits, Inc. Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice) Commerce (Department of Commerce)	$953,437	0.1%	Rank history: #32 in FY2022, #34 in FY2023, #26 in FY2024 and #27 in FY2025; down 12 since FY2020.
39	Sierra Tahoe Investigations Top agencies VA (Department of Veterans Affairs)	$928,910	0.1%	Rank history: #57 in FY2022, #45 in FY2023, #36 in FY2024 and #30 in FY2025; up 2 since FY2020.
40	Martin Miser Cody & Associates LLC Top agencies VA (Department of Veterans Affairs)	$918,800	0.1%	Rank history: #47 in FY2022, #46 in FY2023, #39 in FY2024 and #36 in FY2025; up 6 since FY2020.
41	Adept Services, Inc. Top agencies DOJ (Department of Justice)	$865,771	0.1%	Rank history: #45 in FY2022, #40 in FY2023, #50 in FY2024 and #44 in FY2025; up 16 since FY2020.
42	S.j. Bashen, Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) NASA (National Aeronautics and Space Administration)	$852,410	0.1%	Rank history: #38 in FY2022, #28 in FY2023, #34 in FY2024 and #25 in FY2025; up 5 since FY2020.
43	Gant Global Services (Ggs), Inc. Top agencies VA (Department of Veterans Affairs)	$851,736	0.1%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
44	David Jones CPA PC Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$843,491	0.1%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
45	Computer Evidence Specialists, LLC Top agencies VA (Department of Veterans Affairs)	$825,889	0.1%	Rank history: #55 in FY2022, #49 in FY2023, #38 in FY2024 and #18 in FY2025; down 6 since FY2020.
46	The Ravens Group, Inc. Top agencies VA (Department of Veterans Affairs)	$809,220	0.1%	Rank history: #52 in FY2022, #51 in FY2023, #41 in FY2024 and #32 in FY2025; up 5 since FY2020.
47	Kentech Consulting Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) SEC (Securities and Exchange Commission)	$794,737	0.1%	Rank history: #68 in FY2022, #75 in FY2023, #66 in FY2024 and #62 in FY2025; up 23 since FY2020.
48	Potomac Management Solutions LLC Top agencies Commerce (Department of Commerce) DOJ (Department of Justice)	$770,503	0.1%	Rank history: #31 in FY2022, #25 in FY2023, #28 in FY2024 and #38 in FY2025; new, not ranked in FY2020.
49	Resolution Services, L.l.c Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) USAID (US Agency for International Development)	$770,104	0.1%	Rank history: #59 in FY2022, #54 in FY2023, #61 in FY2024 and #64 in FY2025; down 19 since FY2020.
50	Sikich CPA LLC Top agencies CNCS (Corporation for National and Community Service)	$689,341	0.1%	Rank history: not on the FY2022 list, #88 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
51	Thmg Inc. Top agencies USAF (Department of the Air Force)	$685,147	0.1%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
52	County of Geauga Through Geauga County Of Top agencies SSA (Social Security Administration)	$683,518	0.1%	Rank history: #44 in FY2022, #43 in FY2023, #44 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
53	AON Consulting Inc. Top agencies DOJ (Department of Justice)	$636,765	0.1%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
54	Stratus Federal Solutions LLC Top agencies USAF (Department of the Air Force)	$619,793	0.1%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
55	County of ST Louis Top agencies SSA (Social Security Administration)	$610,559	0.1%	Rank history: #48 in FY2022, #48 in FY2023, #48 in FY2024 and #46 in FY2025; new, not ranked in FY2020.
56	Icris, LLC Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture) Navy (Department of the Navy)	$495,807	0.1%	Rank history: #60 in FY2022, #83 in FY2023, #62 in FY2024 and #56 in FY2025; up 11 since FY2020.
57	Venesco LLC Top agencies Navy (Department of the Navy)	$490,430	0.1%	Rank history: #50 in FY2022, not on the FY2023 list, #54 in FY2024 and not on the FY2025 list; up 19 since FY2020.
58	Information Discovery Services, LLC Top agencies HHS (Department of Health and Human Services) SEC (Securities and Exchange Commission) DHS (Department of Homeland Security)	$465,389	0.1%	Rank history: #61 in FY2022, #59 in FY2023, #65 in FY2024 and #35 in FY2025; down 14 since FY2020.
59	The Ar Group, LLC Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$460,008	0.1%	Rank history: #65 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2020.
60	Strativia LLC Top agencies CNCS (Corporation for National and Community Service)	$459,880	0.1%	Rank history: #56 in FY2022, #58 in FY2023, #60 in FY2024 and not on the FY2025 list; up 5 since FY2020.
61	County of Placer Top agencies SSA (Social Security Administration)	$459,573	0.1%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
62	Magnet Forensics, LLC Top agencies HHS (Department of Health and Human Services)	$449,500	0.1%	Rank history: #58 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
63	Platinum Business Services, LLC Top agencies HHS (Department of Health and Human Services)	$391,987	<0.1%	Rank history: #62 in FY2022, #50 in FY2023, #51 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
64	Key Bridge Foundation for Education and Research Top agencies DOJ (Department of Justice)	$386,994	<0.1%	Rank history: #63 in FY2022, #41 in FY2023, #53 in FY2024 and #50 in FY2025; down 8 since FY2020.
65	Renaissance Associates Ltd Top agencies DOJ (Department of Justice) CFTC (Commodity Futures Trading Commission)	$368,270	<0.1%	Rank history: #79 in FY2022, not on the FY2023–FY2024 lists and #85 in FY2025; down 3 since FY2020.
66	The Oryza Group LLC Top agencies DISA (Defense Information Systems Agency)	$337,347	<0.1%	Rank history: #64 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
67	Evident, Inc. Top agencies DHS (Department of Homeland Security)	$318,600	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Sharon L Floyd Top agencies Navy (Department of the Navy)	$305,766	<0.1%	Rank history: #81 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
69	The Cordero Group LLC Top agencies DOJ (Department of Justice)	$293,000	<0.1%	Rank history: not on the FY2022 list, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
70	Puerto Rico Commonwealth Of Through Department of Police Puerto Rico Top agencies SSA (Social Security Administration)	$279,178	<0.1%	Rank history: #71 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
71	Identity Theft Guard Solutions, Inc. Top agencies SSA (Social Security Administration)	$273,809	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
72	City of Chicago Top agencies SSA (Social Security Administration)	$272,758	<0.1%	Rank history: #72 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
73	Planning, Inc. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) Treasury (Department of the Treasury)	$250,099	<0.1%	Rank history: #80 in FY2022, #81 in FY2023, #85 in FY2024 and not on the FY2025 list; down 1 since FY2020.
74	Larsonallen LLP Through Cliftonlarsonallen LLP Top agencies CNCS (Corporation for National and Community Service)	$242,396	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Forensic Genealogy Services, LLC Top agencies Navy (Department of the Navy)	$240,220	<0.1%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; up 76 since FY2020.
76	Altomonte Advisory Group, LLC Top agencies RRB (Railroad Retirement Board)	$199,680	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
77	Harris County Top agencies SSA (Social Security Administration)	$181,981	<0.1%	Rank history: #67 in FY2022, #44 in FY2023, #56 in FY2024 and #60 in FY2025; down 13 since FY2020.
78	Serco North America (Holdings) Inc Through Serco Inc. Top agencies DLA (Defense Logistics Agency)	$164,659	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
79	ADC Ltd NM Top agencies SSA (Social Security Administration)	$160,776	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
80	Alliance Consulting Corp. Top agencies DOJ (Department of Justice)	$159,701	<0.1%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
81	George Washington University (The) Top agencies Commerce (Department of Commerce)	$157,827	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 36 since FY2020.
82	Inroads, Inc. Top agencies Treasury (Department of the Treasury)	$151,984	<0.1%	Rank history: not on the FY2022 list, #67 in FY2023, #57 in FY2024 and not on the FY2025 list; up 155 since FY2020.
83	Adnet / Accountnet Inc. Top agencies NRC (Nuclear Regulatory Commission)	$136,502	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Greystone Advisory Group LLC Top agencies Commerce (Department of Commerce)	$135,462	<0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
85	Evocavi, LLC Top agencies Navy (Department of the Navy)	$129,212	<0.1%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
86	Blue Arbor Inc. Top agencies DOJ (Department of Justice)	$125,000	<0.1%	Rank history: #93 in FY2022, not on the FY2023 list, #95 in FY2024 and not on the FY2025 list; up 8 since FY2020.
87	Guare Dean Top agencies DOJ (Department of Justice)	$118,500	<0.1%	Rank history: #89 in FY2022, #79 in FY2023, #71 in FY2024 and #65 in FY2025; up 13 since FY2020.
88	Science Applications International Corporation Through Forfeiture Support Associates LLC Top agencies DOJ (Department of Justice)	$118,432	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
89	Kelly Shirley T Top agencies DOJ (Department of Justice)	$118,000	<0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; up 22 since FY2020.
90	Whcook Consulting Top agencies DOJ (Department of Justice)	$118,000	<0.1%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
91	Wilson Scott M Top agencies DOJ (Department of Justice)	$118,000	<0.1%	Rank history: #91 in FY2022, #80 in FY2023, not on the FY2024 list and #72 in FY2025; up 13 since FY2020.
92	Farrell Thomas J Top agencies DOJ (Department of Justice)	$118,000	<0.1%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; down 14 since FY2020.
93	Biometrics4All, LLC Top agencies SBA (Small Business Administration) USDA (Department of Agriculture)	$117,500	<0.1%	Rank history: not on the FY2022–FY2023 lists, #89 in FY2024 and not on the FY2025 list; up 34 since FY2020.
94	Darnall Kenneth J Top agencies DOJ (Department of Justice)	$115,941	<0.1%	Rank history: #97 in FY2022, #89 in FY2023, #77 in FY2024 and #73 in FY2025; up 9 since FY2020.
95	Hohenwarter Vanessa C Top agencies DOJ (Department of Justice)	$115,733	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
96	JP Investigative Associates LLC Top agencies DOJ (Department of Justice)	$112,528	<0.1%	Rank history: #77 in FY2022, #84 in FY2023, #74 in FY2024 and #67 in FY2025; up 6 since FY2020.
97	Expert Resolutions, LLC Top agencies DOJ (Department of Justice)	$111,533	<0.1%	Rank history: #98 in FY2022, #93 in FY2023, #69 in FY2024 and #69 in FY2025; up 29 since FY2020.
98	Coolahan Corey Top agencies DOJ (Department of Justice)	$110,775	<0.1%	Rank history: #78 in FY2022, #90 in FY2023, #68 in FY2024 and #66 in FY2025; up 9 since FY2020.
99	Collier, Harry Lee JR Top agencies DOJ (Department of Justice)	$108,111	<0.1%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
100	Salen, J Richard Top agencies DOJ (Department of Justice)	$104,277	<0.1%	Rank history: not on the FY2022 list, #97 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2020.

Show 75 more

100 of 345 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 $865 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 NAICS 561611 contractors in FY2021?

1. CACI International Inc. ($234M), 2. Perspecta Inc. ($181M), 3. Securitas AB ($87.1M), 4. Asrc Federal Professional Services, LLC ($71.8M), 5. Protection Strategies Inc. ($25.4M), 6. Sullivan Cove Consultants, LLC ($23.4M), 7. HP Enterprise Services LLC ($21.1M), 8. Nana Regional Corporation Inc ($17.4M), 9. Iworks Corp ($16.7M), 10. Accenture Federal Services LLC ($14.3M).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login