Top 100 Contractors in NAICS 561611: Investigation and Personal Background Check Services, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	HP Enterprise Services LLC Through Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$162,308,657	21.9%	Rank history: #7 in FY2021, #1 in FY2023, #3 in FY2024 and not on the FY2025 list; up 6 since FY2021.
2	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)	$126,966,977	17.2%	Rank history: #1 in FY2021, #2 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since FY2021.
3	Securitas AB Through Securitas Critical Infrastructure Services, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$102,427,676	13.8%	Rank history: #3 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
4	Protection Strategies Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$54,299,929	7.3%	Rank history: #5 in FY2021, #3 in FY2023, #6 in FY2024 and #7 in FY2025; up 1 since FY2021.
5	Sullivan Cove Consultants, LLC Top agencies DOJ (Department of Justice)	$34,635,432	4.7%	Rank history: #6 in FY2021, #27 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
6	Asrc Federal Professional Services, LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$25,677,647	3.5%	Rank history: #4 in FY2021, #6 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
7	Capital Center for Credibility Assessment Corporation Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$13,332,332	1.8%	Rank history: #11 in FY2021, #12 in FY2023, #19 in FY2024 and #14 in FY2025; up 4 since FY2021.
8	Iworks Corp Top agencies DCSA (Defense Counterintelligence and Security Agency)	$13,203,261	1.8%	Rank history: #9 in FY2021, not on the FY2023 list, #9 in FY2024 and #9 in FY2025; up 1 since FY2021.
9	Madison Associates Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) DOS (Department of State)	$13,120,770	1.8%	Rank history: #12 in FY2021, #7 in FY2023, #8 in FY2024 and #3 in FY2025; up 3 since FY2021.
10	Professional Risk Management, Inc. Top agencies DOJ (Department of Justice)	$12,852,918	1.7%	Rank history: #13 in FY2021, #8 in FY2023, #5 in FY2024 and #4 in FY2025; up 3 since FY2021.
11	Triple Canopy Inc. Through Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration)	$12,325,140	1.7%	Rank history: #19 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
12	Five Stones Intelligence Inc. Top agencies DOJ (Department of Justice) DOS (Department of State)	$11,335,767	1.5%	Rank history: #16 in FY2021, #11 in FY2023, #11 in FY2024 and #13 in FY2025; up 4 since FY2021.
13	Nana Regional Corporation Inc Through Rivertech LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$10,459,411	1.4%	Rank history: #8 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
14	Emsi Holding Company Through Coventbridge (USA) LLC Top agencies USDA (Department of Agriculture)	$8,407,568	1.1%	Rank history: #21 in FY2021, #13 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
15	Equifax Inc. Through Equifax Workforce Solutions LLC Top agencies SSA (Social Security Administration) DCSA (Defense Counterintelligence and Security Agency) DOJ (Department of Justice)	$8,138,527	1.1%	Rank history: #14 in FY2021, #10 in FY2023, #86 in FY2024 and not on the FY2025 list; down 1 since FY2021.
16	EAP Consultants, LLC Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration) USDA (Department of Agriculture)	$7,089,659	1.0%	Rank history: #18 in FY2021, #14 in FY2023, #13 in FY2024 and #21 in FY2025; up 2 since FY2021.
17	Information Systems & Networks Corporation Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$6,180,919	0.8%	Rank history: #22 in FY2021, #18 in FY2023, #24 in FY2024 and #11 in FY2025; up 5 since FY2021.
18	Potomac River Group, LLC Top agencies DOJ (Department of Justice)	$5,743,451	0.8%	Rank history: #17 in FY2021, #16 in FY2023, #21 in FY2024 and #39 in FY2025; down 1 since FY2021.
19	Parker Tide LLC Top agencies Treasury (Department of the Treasury) HUD (Department of Housing and Urban Development) DOT (Department of Transportation)	$5,287,196	0.7%	Rank history: #20 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
20	Vertical Screen, Inc. Through Fieldprint Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) SSA (Social Security Administration)	$5,066,396	0.7%	Rank history: #28 in FY2021, #15 in FY2023, #22 in FY2024 and not on the FY2025 list; up 8 since FY2021.
21	Excygent, LLC Top agencies Treasury (Department of the Treasury)	$4,863,505	0.7%	Rank history: #24 in FY2021, #17 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
22	Blocktrace, LLC Top agencies Treasury (Department of the Treasury)	$4,391,561	0.6%	Rank history: #30 in FY2021, #19 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
23	Renzulli & Associates Inc. Top agencies DOJ (Department of Justice)	$4,334,873	0.6%	Rank history: not on the FY2021 list, #23 in FY2023 and not on the FY2024–FY2025 lists; new.
24	Omniplex World Services Corp Top agencies DHS (Department of Homeland Security)	$3,658,167	0.5%	Rank history: not on the FY2021 list, #4 in FY2023, #33 in FY2024 and not on the FY2025 list; new.
25	Global Health Assurance Partnership, LLC Top agencies USAID (US Agency for International Development)	$3,256,209	0.4%	Rank history: #25 in FY2021, #24 in FY2023, not on the FY2024 list and #45 in FY2025; unchanged since FY2021.
26	The Ross Agency, Inc. Top agencies VA (Department of Veterans Affairs)	$2,711,955	0.4%	Rank history: #27 in FY2021, #20 in FY2023, #14 in FY2024 and #16 in FY2025; up 1 since FY2021.
27	Anasec, Inc. Top agencies DHS (Department of Homeland Security)	$2,709,240	0.4%	Rank history: #15 in FY2021, #22 in FY2023, #20 in FY2024 and #15 in FY2025; down 12 since FY2021.
28	PAE Government Services Inc. Through PAE Professional Services, LLC Top agencies SEC (Securities and Exchange Commission) Army (Department of the Army) DOE (Department of Energy)	$2,541,715	0.3%	Rank history: not on the FY2021 list, #32 in FY2023 and not on the FY2024–FY2025 lists; new.
29	Crossroads Mediation Services, Inc. Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$2,180,900	0.3%	Rank history: #29 in FY2021, #31 in FY2023, #27 in FY2024 and #29 in FY2025; unchanged since FY2021.
30	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)	$1,968,352	0.3%	Rank history: #26 in FY2021, #26 in FY2023, #30 in FY2024 and not on the FY2025 list; down 4 since FY2021.
31	Potomac Management Solutions LLC Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) DOJ (Department of Justice)	$1,891,137	0.3%	Rank history: #48 in FY2021, #25 in FY2023, #28 in FY2024 and #38 in FY2025; up 17 since FY2021.
32	Government Retirement & Benefits, Inc. Top agencies DOI (Department of the Interior) DOJ (Department of Justice) Treasury (Department of the Treasury)	$1,840,901	0.2%	Rank history: #38 in FY2021, #34 in FY2023, #26 in FY2024 and #27 in FY2025; up 6 since FY2021.
33	Qintel LLC Top agencies DHS (Department of Homeland Security)	$1,500,000	0.2%	Rank history: #32 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
34	Stratus Federal Solutions LLC Top agencies DHA (Defense Health Agency)	$1,387,946	0.2%	Rank history: #54 in FY2021 and not on the FY2023–FY2025 lists; up 20 since FY2021.
35	Guardian Defense Group, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$1,297,693	0.2%	Rank history: #35 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
36	Creative It Solutions LLC Top agencies HHS (Department of Health and Human Services)	$1,245,989	0.2%	Rank history: #33 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
37	The Law Offices of Stuart L. Plotnick, LLC Top agencies USDA (Department of Agriculture) Commerce (Department of Commerce) DOT (Department of Transportation)	$1,237,804	0.2%	Rank history: #36 in FY2021, #38 in FY2023, #43 in FY2024 and not on the FY2025 list; down 1 since FY2021.
38	S.j. Bashen, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) DECA (Defense Commissary Agency)	$1,156,915	0.2%	Rank history: #42 in FY2021, #28 in FY2023, #34 in FY2024 and #25 in FY2025; up 4 since FY2021.
39	Talon East Fuel Services LLC Top agencies OSD (Office of the Secretary of Defense)	$1,140,520	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #55 in FY2025; new.
40	Vius, LLC Top agencies DHS (Department of Homeland Security)	$1,064,635	0.1%	Rank history: #34 in FY2021, #35 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
41	Accenture Federal Services LLC Top agencies Commerce (Department of Commerce)	$1,043,448	0.1%	Rank history: #10 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
42	Acquisition Solutions Eagles, LLC Top agencies DHS (Department of Homeland Security)	$999,889	0.1%	Rank history: not on the FY2021 list, #36 in FY2023, not on the FY2024 list and #40 in FY2025; new.
43	Accenture Inc. Through Accenture Federal Services LLC Top agencies Commerce (Department of Commerce)	$999,180	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
44	County of Geauga Through Geauga County Of Top agencies SSA (Social Security Administration)	$732,372	0.1%	Rank history: #52 in FY2021, #43 in FY2023, #44 in FY2024 and not on the FY2025 list; up 8 since FY2021.
45	Adept Services, Inc. Top agencies DOJ (Department of Justice)	$729,590	0.1%	Rank history: #41 in FY2021, #40 in FY2023, #50 in FY2024 and #44 in FY2025; down 4 since FY2021.
46	Rivertech LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$729,171	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
47	Martin Miser Cody & Associates LLC Top agencies VA (Department of Veterans Affairs)	$668,650	0.1%	Rank history: #40 in FY2021, #46 in FY2023, #39 in FY2024 and #36 in FY2025; down 7 since FY2021.
48	County of ST Louis Top agencies SSA (Social Security Administration)	$641,087	0.1%	Rank history: #55 in FY2021, #48 in FY2023, #48 in FY2024 and #46 in FY2025; up 7 since FY2021.
49	Gant Global Services (Ggs), Inc. Top agencies VA (Department of Veterans Affairs)	$617,916	0.1%	Rank history: #43 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
50	Venesco LLC Top agencies Navy (Department of the Navy)	$572,740	0.1%	Rank history: #57 in FY2021, not on the FY2023 list, #54 in FY2024 and not on the FY2025 list; up 7 since FY2021.
51	AON Consulting Inc. Top agencies DOJ (Department of Justice)	$515,814	0.1%	Rank history: #53 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
52	The Ravens Group, Inc. Top agencies VA (Department of Veterans Affairs)	$500,738	0.1%	Rank history: #46 in FY2021, #51 in FY2023, #41 in FY2024 and #32 in FY2025; down 6 since FY2021.
53	Business Decisions Information Inc. Top agencies USDA (Department of Agriculture) DHS (Department of Homeland Security) Navy (Department of the Navy)	$496,215	0.1%	Rank history: not on the FY2021 list, #73 in FY2023, #49 in FY2024 and #59 in FY2025; up 121 since FY2021.
54	David Jones CPA PC Top agencies VA (Department of Veterans Affairs)	$491,304	0.1%	Rank history: #44 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
55	Computer Evidence Specialists, LLC Top agencies VA (Department of Veterans Affairs)	$478,786	0.1%	Rank history: #45 in FY2021, #49 in FY2023, #38 in FY2024 and #18 in FY2025; down 10 since FY2021.
56	Strativia LLC Top agencies CNCS (Corporation for National and Community Service)	$475,247	0.1%	Rank history: #60 in FY2021, #58 in FY2023, #60 in FY2024 and not on the FY2025 list; up 4 since FY2021.
57	Sierra Tahoe Investigations Top agencies VA (Department of Veterans Affairs)	$473,105	0.1%	Rank history: #39 in FY2021, #45 in FY2023, #36 in FY2024 and #30 in FY2025; down 18 since FY2021.
58	Magnet Forensics, LLC Top agencies HHS (Department of Health and Human Services)	$471,975	0.1%	Rank history: #62 in FY2021, #57 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
59	Resolution Services, L.l.c Top agencies Commerce (Department of Commerce) DOJ (Department of Justice) USDA (Department of Agriculture)	$464,500	0.1%	Rank history: #49 in FY2021, #54 in FY2023, #61 in FY2024 and #64 in FY2025; down 10 since FY2021.
60	Icris, LLC Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture) FCC (Federal Communications Commission)	$442,004	0.1%	Rank history: #56 in FY2021, #83 in FY2023, #62 in FY2024 and #56 in FY2025; down 4 since FY2021.
61	Information Discovery Services, LLC Top agencies HHS (Department of Health and Human Services) SEC (Securities and Exchange Commission) DHS (Department of Homeland Security)	$440,493	0.1%	Rank history: #58 in FY2021, #59 in FY2023, #65 in FY2024 and #35 in FY2025; down 3 since FY2021.
62	Platinum Business Services, LLC Top agencies HHS (Department of Health and Human Services)	$399,827	0.1%	Rank history: #63 in FY2021, #50 in FY2023, #51 in FY2024 and not on the FY2025 list; up 1 since FY2021.
63	Key Bridge Foundation for Education and Research Top agencies DOJ (Department of Justice)	$362,272	<0.1%	Rank history: #64 in FY2021, #41 in FY2023, #53 in FY2024 and #50 in FY2025; up 1 since FY2021.
64	The Oryza Group LLC Top agencies DISA (Defense Information Systems Agency)	$343,833	<0.1%	Rank history: #66 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
65	The Ar Group, LLC Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security)	$318,453	<0.1%	Rank history: #59 in FY2021, #52 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
66	Berkeley Research Group, LLC Top agencies CFTC (Commodity Futures Trading Commission)	$309,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
67	Harris County Top agencies SSA (Social Security Administration)	$306,212	<0.1%	Rank history: #77 in FY2021, #44 in FY2023, #56 in FY2024 and #60 in FY2025; up 10 since FY2021.
68	Kentech Consulting Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$296,070	<0.1%	Rank history: #47 in FY2021, #75 in FY2023, #66 in FY2024 and #62 in FY2025; down 21 since FY2021.
69	Evocavi, LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$294,831	<0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; up 16 since FY2021.
70	HR Anew, Inc. Top agencies DHS (Department of Homeland Security)	$286,350	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 34 since FY2021.
71	Puerto Rico Commonwealth Of Through Department of Police Puerto Rico Top agencies SSA (Social Security Administration)	$279,178	<0.1%	Rank history: #70 in FY2021, #66 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
72	City of Chicago Top agencies SSA (Social Security Administration)	$278,060	<0.1%	Rank history: #72 in FY2021, #65 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
73	Forensic Genealogy Services, LLC Top agencies Navy (Department of the Navy)	$270,268	<0.1%	Rank history: #75 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
74	The Clemons Group, Inc. Top agencies DOE (Department of Energy)	$244,705	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 51 since FY2021.
75	Newpoint Strategies, LLC Top agencies EEOC (Equal Employment Opportunity Commission)	$241,930	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 36 since FY2021.
76	Thmg Inc. Top agencies USAF (Department of the Air Force)	$239,047	<0.1%	Rank history: #51 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
77	JP Investigative Associates LLC Top agencies DOJ (Department of Justice)	$221,245	<0.1%	Rank history: #96 in FY2021, #84 in FY2023, #74 in FY2024 and #67 in FY2025; up 19 since FY2021.
78	Coolahan Corey Top agencies DOJ (Department of Justice)	$215,640	<0.1%	Rank history: #98 in FY2021, #90 in FY2023, #68 in FY2024 and #66 in FY2025; up 20 since FY2021.
79	Renaissance Associates Ltd Top agencies DOJ (Department of Justice)	$190,203	<0.1%	Rank history: #65 in FY2021, not on the FY2023–FY2024 lists and #85 in FY2025; down 14 since FY2021.
80	Planning, Inc. Top agencies Commerce (Department of Commerce) Treasury (Department of the Treasury)	$180,820	<0.1%	Rank history: #73 in FY2021, #81 in FY2023, #85 in FY2024 and not on the FY2025 list; down 7 since FY2021.
81	Sharon L Floyd Top agencies Navy (Department of the Navy)	$152,406	<0.1%	Rank history: #68 in FY2021, #74 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
82	Greystone Advisory Group LLC Top agencies Commerce (Department of Commerce)	$139,950	<0.1%	Rank history: #84 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
83	Professionally Written, L.L.C. Top agencies DHS (Department of Homeland Security)	$133,800	<0.1%	Rank history: not on the FY2021 list, #94 in FY2023, #47 in FY2024 and #78 in FY2025; new.
84	Advanced EEO Solutions LLC Top agencies Navy (Department of the Navy) MCC (Millennium Challenge Corporation)	$128,512	<0.1%	Rank history: not on the FY2021 list, #63 in FY2023, #46 in FY2024 and #48 in FY2025; up 55 since FY2021.
85	CFB Investigation Services LLC Top agencies DOJ (Department of Justice)	$124,402	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 167 since FY2021.
86	Alliance Consulting Corp. Top agencies DOJ (Department of Justice)	$123,610	<0.1%	Rank history: #80 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
87	Hanson Raymond L Top agencies DOJ (Department of Justice)	$123,500	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #76 in FY2024 and #76 in FY2025; up 60 since FY2021.
88	Mind Your Business Inc. Top agencies Navy (Department of the Navy)	$121,100	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	Guare Dean Top agencies DOJ (Department of Justice)	$120,000	<0.1%	Rank history: #87 in FY2021, #79 in FY2023, #71 in FY2024 and #65 in FY2025; down 2 since FY2021.
90	Fieldprint Inc. Top agencies HHS (Department of Health and Human Services)	$119,000	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #32 in FY2024 and #20 in FY2025; up 216 since FY2021.
91	Wilson Scott M Top agencies DOJ (Department of Justice)	$119,000	<0.1%	Rank history: #91 in FY2021, #80 in FY2023, not on the FY2024 list and #72 in FY2025; unchanged since FY2021.
92	Adnet/Accountnet Inc Top agencies NRC (Nuclear Regulatory Commission)	$117,893	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
93	Blue Arbor Inc. Top agencies DOJ (Department of Justice)	$117,562	<0.1%	Rank history: #86 in FY2021, not on the FY2023 list, #95 in FY2024 and not on the FY2025 list; down 7 since FY2021.
94	Brandon Spears LLC Top agencies DOJ (Department of Justice)	$114,371	<0.1%	Rank history: not on the FY2021 list, #92 in FY2023, #67 in FY2024 and #68 in FY2025; up 54 since FY2021.
95	Jbcn Investigations LLC Top agencies DOJ (Department of Justice)	$114,185	<0.1%	Rank history: not on the FY2021 list, #91 in FY2023, #70 in FY2024 and not on the FY2025 list; up 85 since FY2021.
96	Kelly Shirley T Top agencies DOJ (Department of Justice)	$111,088	<0.1%	Rank history: #89 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
97	Darnall Kenneth J Top agencies DOJ (Department of Justice)	$107,851	<0.1%	Rank history: #94 in FY2021, #89 in FY2023, #77 in FY2024 and #73 in FY2025; down 3 since FY2021.
98	Expert Resolutions, LLC Top agencies DOJ (Department of Justice)	$103,544	<0.1%	Rank history: #97 in FY2021, #93 in FY2023, #69 in FY2024 and #69 in FY2025; down 1 since FY2021.
99	Farrell Thomas J Top agencies DOJ (Department of Justice)	$102,720	<0.1%	Rank history: #92 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
100	Kimberly G Fetsko Top agencies DOJ (Department of Justice)	$100,000	<0.1%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; new.

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 $740 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