Top 100 Contractors in PSC R615: Support – Administrative: Background Investigation, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	CACI International Inc. Through Caci, Inc. - Federal Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$306,013,286	36.9%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2023, #1 in FY2024 and #2 in FY2025; up 1 since Aug 2024–Jul 2025.
2	Peraton Risk Decision Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$245,744,318	29.6%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #1 in FY2025; down 1 since Aug 2024–Jul 2025.
3	ADC Ltd NM Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$61,173,779	7.4%	Rank history: #7 in FY2021, #4 in FY2022, #3 in FY2023, #4 in FY2024 and #3 in FY2025; unchanged since Aug 2024–Jul 2025.
4	Arctic Slope Regional Corporation Through Asrc Federal Administrative Services, LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$42,319,746	5.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Constellis, LLC Through Omniplex World Services Corporation Top agencies DHS (Department of Homeland Security)	$21,796,954	2.6%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and #7 in FY2025; up 3 since Aug 2024–Jul 2025.
6	Capital Center for Credibility Assessment Corporation Top agencies DHS (Department of Homeland Security)	$18,592,254	2.2%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023, #11 in FY2024 and #5 in FY2025; up 5 since Aug 2024–Jul 2025.
7	Celerity Government Solutions LLC Top agencies DHS (Department of Homeland Security)	$16,765,807	2.0%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; up 7 since Aug 2024–Jul 2025.
8	Iworks Corp Top agencies DCSA (Defense Counterintelligence and Security Agency)	$16,473,958	2.0%	Rank history: #5 in FY2021, #6 in FY2022, #6 in FY2023, #6 in FY2024 and #6 in FY2025; down 4 since Aug 2024–Jul 2025.
9	Deloitte Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$16,233,998	2.0%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #4 in FY2025; down 4 since Aug 2024–Jul 2025.
10	Coventbridge (USA) LLC Top agencies USDA (Department of Agriculture)	$9,386,986	1.1%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #9 in FY2025; up 11 since Aug 2024–Jul 2025.
11	Nana Regional Corporation, Inc. 2 awardees, including TKC Global Solutions, LLC Top agencies DOE (Department of Energy)	$9,074,767	1.1%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #11 in FY2025; up 2 since Aug 2024–Jul 2025.
12	Experian Holdings Inc. Through Experian Information Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$6,727,518	0.8%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #8 in FY2025; down 5 since Aug 2024–Jul 2025.
13	Anasec, Inc. Top agencies DHS (Department of Homeland Security)	$6,257,598	0.8%	Rank history: #10 in FY2021, #17 in FY2022, #13 in FY2023, #13 in FY2024 and #10 in FY2025; down 4 since Aug 2024–Jul 2025.
14	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies DHS (Department of Homeland Security)	$2,838,302	0.3%	Rank history: #17 in FY2021, #10 in FY2022, #8 in FY2023, #5 in FY2024 and #14 in FY2025; down 8 since Aug 2024–Jul 2025.
15	DNI Emerging Technologies, LLC Top agencies HHS (Department of Health and Human Services)	$2,536,823	0.3%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023, #16 in FY2024 and #16 in FY2025; unchanged since Aug 2024–Jul 2025.
16	The Ross Agency, Inc. Top agencies VA (Department of Veterans Affairs)	$2,079,375	0.3%	Rank history: #20 in FY2021, #16 in FY2022, #12 in FY2023, #12 in FY2024 and #12 in FY2025; down 6 since Aug 2024–Jul 2025.
17	Old Harbor Solutions LLC Top agencies DHS (Department of Homeland Security)	$1,726,647	0.2%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18	Ernst & Young LLP Through Dignari, LLC Top agencies DHS (Department of Homeland Security)	$1,710,279	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19	Equifax Inc. Through Equifax Workforce Solutions LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$1,457,365	0.2%	Rank history: #18 in FY2021, #20 in FY2022, #16 in FY2023, not on the FY2024 list and #17 in FY2025; new, not ranked in Aug 2024–Jul 2025.
20	Lexisnexis Special Services Inc 4 awardees, including Relx Inc., Lexisnexis Risk Solutions Inc. and Lexisnexis Risk Solutions FL Inc. Top agencies DOJ (Department of Justice) DOD (Department of Defense) Treasury (Department of the Treasury)	$1,421,140	0.2%	Rank history: not on the FY2021 list, #48 in FY2022, #23 in FY2023, #23 in FY2024 and #20 in FY2025; down 1 since Aug 2024–Jul 2025.
21	Protection Strategies Inc. Top agencies SEC (Securities and Exchange Commission)	$1,246,127	0.2%	Rank history: #33 in FY2021, #55 in FY2022, not on the FY2023 list, #21 in FY2024 and #21 in FY2025; down 1 since Aug 2024–Jul 2025.
22	US ISS Agency LLC Top agencies DHS (Department of Homeland Security)	$1,100,868	0.1%	Rank history: not on the FY2021 list, #25 in FY2022, #21 in FY2023, #26 in FY2024 and #22 in FY2025; unchanged since Aug 2024–Jul 2025.
23	Fieldprint Inc. Top agencies Treasury (Department of the Treasury) NSF (National Science Foundation) DHS (Department of Homeland Security)	$1,091,242	0.1%	Rank history: not on the FY2021 list, #41 in FY2022 and not on the FY2023–FY2025 lists; down 11 since Aug 2024–Jul 2025.
24	Parker Tide LLC Top agencies DOE (Department of Energy)	$590,632	0.1%	Rank history: #56 in FY2021, #29 in FY2022, #26 in FY2023, #27 in FY2024 and #24 in FY2025; up 3 since Aug 2024–Jul 2025.
25	Chainbridge Solutions Incorporated Top agencies PBGC (Pension Benefit Guaranty Corporation)	$512,692	0.1%	Rank history: #26 in FY2021, #24 in FY2022, #24 in FY2023, #31 in FY2024 and #27 in FY2025; up 5 since Aug 2024–Jul 2025.
26	Strativia LLC Top agencies CNCS (Corporation for National and Community Service)	$493,055	0.1%	Rank history: #32 in FY2021, #28 in FY2022, #28 in FY2023, #35 in FY2024 and #29 in FY2025; up 9 since Aug 2024–Jul 2025.
27	Crossroads Mediation Services, Inc. Top agencies DOS (Department of State)	$360,372	<0.1%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #47 in FY2025; up 10 since Aug 2024–Jul 2025.
28	Resolution Services, L.l.c Top agencies DOS (Department of State) USAID (US Agency for International Development)	$322,312	<0.1%	Rank history: not on the FY2021 list, #52 in FY2022, #71 in FY2023, #37 in FY2024 and #33 in FY2025; up 5 since Aug 2024–Jul 2025.
29	Wilson Scott M Top agencies DOJ (Department of Justice)	$245,840	<0.1%	Rank history: #42 in FY2021, #42 in FY2022, #37 in FY2023, not on the FY2024 list and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30	Advanced EEO Solutions LLC Top agencies Navy (Department of the Navy)	$243,850	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, #29 in FY2024 and #28 in FY2025; down 6 since Aug 2024–Jul 2025.
31	Brian Shemonsky Top agencies DOJ (Department of Justice)	$242,744	<0.1%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
32	B&P Solutions, LLC Top agencies USAF (Department of the Air Force)	$193,611	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33	National Law Enforcement Telecommunication System (Nlets), Inc. Top agencies Army (Department of the Army)	$183,667	<0.1%	Rank history: #52 in FY2021, #46 in FY2022, #45 in FY2023, #58 in FY2024 and #31 in FY2025; up 10 since Aug 2024–Jul 2025.
34	Defense Investigators Group, Inc. Top agencies USAF (Department of the Air Force)	$177,661	<0.1%	Rank history: #39 in FY2021, #37 in FY2022, #35 in FY2023, #42 in FY2024 and #32 in FY2025; up 10 since Aug 2024–Jul 2025.
35	Guare Dean Top agencies DOJ (Department of Justice)	$145,196	<0.1%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #35 in FY2025; up 11 since Aug 2024–Jul 2025.
36	Coolahan Corey Top agencies DOJ (Department of Justice)	$140,457	<0.1%	Rank history: #44 in FY2021, #35 in FY2022, #43 in FY2023, #44 in FY2024 and #36 in FY2025; up 12 since Aug 2024–Jul 2025.
37	Brandon Spears LLC Top agencies DOJ (Department of Justice)	$134,500	<0.1%	Rank history: #62 in FY2021, not on the FY2022–FY2023 lists, #52 in FY2024 and #38 in FY2025; up 10 since Aug 2024–Jul 2025.
38	Expert Resolutions, LLC Top agencies DOJ (Department of Justice)	$131,810	<0.1%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #40 in FY2025; up 12 since Aug 2024–Jul 2025.
39	JP Investigative Associates LLC Top agencies DOJ (Department of Justice)	$131,810	<0.1%	Rank history: #41 in FY2021, #34 in FY2022, #39 in FY2023, #45 in FY2024 and #37 in FY2025; up 10 since Aug 2024–Jul 2025.
40	Advanced Decision Vectors LLC Top agencies Peace Corps	$126,431	<0.1%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023, #57 in FY2024 and #39 in FY2025; up 11 since Aug 2024–Jul 2025.
41	Echelon Services, LLC Top agencies Army (Department of the Army)	$123,822	<0.1%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #44 in FY2025; down 1 since Aug 2024–Jul 2025.
42	Datasource Inc. Top agencies CFPB (Consumer Financial Protection Bureau)	$115,609	<0.1%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, #40 in FY2024 and #30 in FY2025; down 6 since Aug 2024–Jul 2025.
43	Graham Inc. Top agencies DOE (Department of Energy)	$115,565	<0.1%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #45 in FY2025; up 10 since Aug 2024–Jul 2025.
44	Hanson Raymond L Top agencies DOJ (Department of Justice)	$108,728	<0.1%	Rank history: #64 in FY2021, #39 in FY2022, #83 in FY2023, #46 in FY2024 and #46 in FY2025; down 5 since Aug 2024–Jul 2025.
45	WCD Integrity Solutions LLC Top agencies DOJ (Department of Justice)	$105,912	<0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023, #53 in FY2024 and #48 in FY2025; down 7 since Aug 2024–Jul 2025.
46	Kent Carter Investigations, LLC Top agencies DOJ (Department of Justice)	$105,502	<0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023, #54 in FY2024 and #49 in FY2025; down 5 since Aug 2024–Jul 2025.
47	Esposito Christopher Top agencies DOJ (Department of Justice)	$101,760	<0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023, #55 in FY2024 and #50 in FY2025; down 5 since Aug 2024–Jul 2025.
48	Art of Resolution, LLC Top agencies DOS (Department of State)	$100,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and not on the FY2025 list; down 16 since Aug 2024–Jul 2025.
49	Lebby, Nicole V Top agencies DOJ (Department of Justice)	$48,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	West Publishing Corporation Top agencies USDA (Department of Agriculture)	$47,664	<0.1%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #51 in FY2025; up 5 since Aug 2024–Jul 2025.
51	Gary Lynn Combs Top agencies DOJ (Department of Justice)	$47,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52	Information Discovery Services, LLC Top agencies SSA (Social Security Administration)	$42,521	<0.1%	Rank history: #54 in FY2021, #49 in FY2022, not on the FY2023–FY2024 lists and #58 in FY2025; up 10 since Aug 2024–Jul 2025.
53	Lashay Shambley LLC Top agencies Navy (Department of the Navy)	$37,080	<0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; up 5 since Aug 2024–Jul 2025.
54	Lippon Co Top agencies DOJ (Department of Justice)	$32,390	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, #72 in FY2024 and #71 in FY2025; up 28 since Aug 2024–Jul 2025.
55	Mezhir Security & Investigations-Msi-Llc Top agencies DOJ (Department of Justice)	$27,654	<0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, #76 in FY2024 and #68 in FY2025; up 20 since Aug 2024–Jul 2025.
56	Wyall, Melody Top agencies DOJ (Department of Justice)	$27,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	Hall, Steven Top agencies DOJ (Department of Justice)	$25,623	<0.1%	Rank history: #61 in FY2021, #68 in FY2022, #61 in FY2023, #70 in FY2024 and #60 in FY2025; up 2 since Aug 2024–Jul 2025.
58	AL. Dept. of Public Health Through Alabama State Law Enforcement Agency Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$25,260	<0.1%	Rank history: #63 in FY2021, not on the FY2022 list, #100 in FY2023, #100 in FY2024 and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
59	Difede, Anthony Top agencies DOJ (Department of Justice)	$22,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Pena, Donald Top agencies DOJ (Department of Justice)	$20,785	<0.1%	Rank history: #69 in FY2021, #61 in FY2022, #69 in FY2023, #66 in FY2024 and #59 in FY2025; unchanged since Aug 2024–Jul 2025.
61	Moritz, Daniel E Top agencies DOJ (Department of Justice)	$20,700	<0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; new, not ranked in Aug 2024–Jul 2025.
62	Mind Your Business Inc Top agencies DHS (Department of Homeland Security)	$18,680	<0.1%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; up 2 since Aug 2024–Jul 2025.
63	Seltzer LLC Top agencies DOJ (Department of Justice)	$17,569	<0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #77 in FY2023, #78 in FY2024 and #83 in FY2025; up 16 since Aug 2024–Jul 2025.
64	Idaho State Police Top agencies USAF (Department of the Air Force)	$16,500	<0.1%	Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and #76 in FY2025; up 19 since Aug 2024–Jul 2025.
65	Mcgill Terry Top agencies DOJ (Department of Justice)	$15,980	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Federation of State Medical Boards of the United States, Inc. Top agencies DOT (Department of Transportation)	$15,400	<0.1%	Rank history: #78 in FY2021, #77 in FY2022, #75 in FY2023, #79 in FY2024 and #74 in FY2025; up 14 since Aug 2024–Jul 2025.
67	Dirmeyer David Top agencies DOJ (Department of Justice)	$15,000	<0.1%	Rank history: not on the FY2021 list, #83 in FY2022, #68 in FY2023, not on the FY2024 list and #79 in FY2025; up 17 since Aug 2024–Jul 2025.
68	Astrike Federal Investigations, LLC Top agencies DOJ (Department of Justice)	$14,900	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, #84 in FY2024 and #97 in FY2025; up 30 since Aug 2024–Jul 2025.
69	Quabius Jay A Top agencies DOJ (Department of Justice)	$14,500	<0.1%	Rank history: #97 in FY2021, #80 in FY2022, #65 in FY2023, not on the FY2024 list and #64 in FY2025; up 5 since Aug 2024–Jul 2025.
70	Cheryl L Townsend Top agencies DOJ (Department of Justice)	$14,110	<0.1%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and #91 in FY2025; up 22 since Aug 2024–Jul 2025.
71	Wicklander Zulawski & Associates, Inc. Top agencies DOS (Department of State)	$13,861	<0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; down 1 since Aug 2024–Jul 2025.
72	Jane M Brillhart Top agencies DOJ (Department of Justice)	$13,100	<0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; new, not ranked in Aug 2024–Jul 2025.
73	Balkema Jane E Top agencies DOJ (Department of Justice)	$12,800	<0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023, #81 in FY2024 and not on the FY2025 list; up 28 since Aug 2024–Jul 2025.
74	Russell Milam Top agencies DOJ (Department of Justice)	$12,700	<0.1%	Rank history: #95 in FY2021, #67 in FY2022, not on the FY2023 list, #74 in FY2024 and #90 in FY2025; up 16 since Aug 2024–Jul 2025.
75	Elizabeth H Turner Top agencies DOJ (Department of Justice)	$12,700	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76	Kevin Cascio Top agencies DOJ (Department of Justice)	$12,597	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77	Kelly Difede Top agencies DOJ (Department of Justice)	$12,572	<0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #85 in FY2024 and #82 in FY2025; up 9 since Aug 2024–Jul 2025.
78	Pen-Link, Ltd Top agencies DOS (Department of State)	$11,205	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Aug 2024–Jul 2025.
79	HR Anew, Inc. Top agencies CSOSA (Court Services and Offender Supervision Agency)	$10,703	<0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
80	Monachello Consulting LLC Top agencies DOJ (Department of Justice)	$9,555	<0.1%	Rank history: #66 in FY2021, #74 in FY2022, #57 in FY2023, #97 in FY2024 and #77 in FY2025; up 8 since Aug 2024–Jul 2025.
81	Douglas Dawson Top agencies DOJ (Department of Justice)	$9,500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	George Tortorelis Investigations Top agencies DOJ (Department of Justice)	$9,500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	Blue Eagle Security Solutions LLC Top agencies DOJ (Department of Justice)	$9,479	<0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, not on the FY2024 list and #87 in FY2025; up 13 since Aug 2024–Jul 2025.
84	VTM Consulting LLC Top agencies DOJ (Department of Justice)	$9,436	<0.1%	Rank history: #99 in FY2021, #58 in FY2022, #82 in FY2023, not on the FY2024 list and #61 in FY2025; down 17 since Aug 2024–Jul 2025.
85	Hector Luis Prieto Top agencies DOJ (Department of Justice)	$9,110	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023, #96 in FY2024 and #75 in FY2025; down 9 since Aug 2024–Jul 2025.
86	Department of Management Services Top agencies USAF (Department of the Air Force)	$7,277	<0.1%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and not on the FY2025 list; up 1 since Aug 2024–Jul 2025.
87	Marquardt Paul Top agencies DOJ (Department of Justice)	$7,200	<0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
88	Andrew Siegel Top agencies DOJ (Department of Justice)	$7,124	<0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023, #87 in FY2024 and #92 in FY2025; down 3 since Aug 2024–Jul 2025.
89	Nebraska Department of Administrative Services Top agencies VA (Department of Veterans Affairs)	$6,451	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #86 in FY2025; unchanged since Aug 2024–Jul 2025.
90	Taylor Investigation Services L.L.C. Top agencies DOJ (Department of Justice)	$5,751	<0.1%	Rank history: #80 in FY2021, #69 in FY2022, #67 in FY2023, not on the FY2024 list and #99 in FY2025; up 1 since Aug 2024–Jul 2025.
91	Commonwealth of Pennsylvania Through Department of State Police Pennsylvania Top agencies VA (Department of Veterans Affairs)	$5,520	<0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Aug 2024–Jul 2025.
92	Ellis Ernest L Top agencies DOJ (Department of Justice)	$5,414	<0.1%	Rank history: #83 in FY2021, #91 in FY2022, #74 in FY2023, not on the FY2024 list and #98 in FY2025; up 3 since Aug 2024–Jul 2025.
93	GPC Consolidated Reporting Top agencies USDA (Department of Agriculture)	$4,800	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Albritton Consulting LLC Top agencies DOJ (Department of Justice)	$4,775	<0.1%	Rank history: #93 in FY2021, not on the FY2022 list, #66 in FY2023, #80 in FY2024 and not on the FY2025 list; up 5 since Aug 2024–Jul 2025.
95	Dept of Pub Safety Top agencies VA (Department of Veterans Affairs)	$3,912	<0.1%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; up 2 since Aug 2024–Jul 2025.
96	Clifford Ellston Top agencies DOJ (Department of Justice)	$3,650	<0.1%	Rank history: not on the FY2021 list, #94 in FY2022, not on the FY2023 list, #90 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
97	Transunion Risk and Alternative Data Solutions, Inc. Top agencies DOJ (Department of Justice)	$3,177	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	O'rourke, Kevin M Top agencies DOJ (Department of Justice)	$3,001	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Meek Terry H Top agencies DOJ (Department of Justice)	$2,500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	Computer Evidence Specialists, LLC Top agencies CSOSA (Court Services and Offender Supervision Agency)	$1,660	<0.1%	Rank history: #73 in FY2021, #87 in FY2022, not on the FY2023 list, #75 in FY2024 and #62 in FY2025; down 43 since Aug 2024–Jul 2025.

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 $829 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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