Top 100 Contractors in NAICS 56199: All Other Support Services, FY2022

Name: Top 100 Contractors in NAICS 56199: All Other Support Services, FY2022
Creator: GovTribe

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

The top 10 won 71% of FY2022 NAICS 56199 contract dollars

Contract obligations: $1,510,057,299 Net of deobligations, by contracts coded NAICS 56199 or a code under it
Contractors: 925 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $796 million, 47.6% 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	Lockheed Martin Corporation 3 awardees, including Sikorsky Aircraft Corporation Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) Army (Department of the Army)	$796,436,317	47.6%	Rank history: #1 in FY2021, #2 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2021.
2	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$120,642,800	7.2%	Rank history: #2 in FY2021, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since FY2021.
3	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies DOE (Department of Energy) USAF (Department of the Air Force)	$62,758,127	3.8%	Rank history: #10 in FY2021, #5 in FY2023, #10 in FY2024 and #9 in FY2025; up 7 since FY2021.
4	Atkins Nuclear Secured Holdings Corporation Through Isotek Systems, LLC Top agencies DOE (Department of Energy)	$55,402,567	3.3%	Rank history: #4 in FY2021, #6 in FY2023, #5 in FY2024 and #4 in FY2025; unchanged since FY2021.
5	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOS (Department of State)	$47,368,495	2.8%	Rank history: #7 in FY2021, #4 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
6	Sierra Nevada Company, LLC Top agencies USAF (Department of the Air Force)	$33,073,035	2.0%	Rank history: not on the FY2021 list, #7 in FY2023, #9 in FY2024 and #10 in FY2025; new.
7	General Atomic Technologies Corporation Through General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force)	$18,415,562	1.1%	Rank history: #11 in FY2021, #16 in FY2023, #28 in FY2024 and not on the FY2025 list; up 4 since FY2021.
8	Triple Canopy Inc. 2 awardees, including Centerra Group, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$17,354,237	1.0%	Rank history: #15 in FY2021, #18 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
9	Trace, Inc. Top agencies DECA (Defense Commissary Agency)	$15,994,773	1.0%	Rank history: #12 in FY2021, #9 in FY2023, #6 in FY2024 and #6 in FY2025; up 3 since FY2021.
10	Sealaska Remediation Solutions, LLC Top agencies DOE (Department of Energy)	$12,142,857	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
11	CW Group Inc Through CW Resources, Inc. Top agencies DECA (Defense Commissary Agency)	$11,264,807	0.7%	Rank history: #16 in FY2021, #11 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
12	The Chenega Corporation Through Chenega Global Protection, LLC Top agencies NASA (National Aeronautics and Space Administration)	$10,827,637	0.6%	Rank history: not on the FY2021 list, #8 in FY2023, #23 in FY2024 and not on the FY2025 list; new.
13	Lumbee Tribe Enterprises LLC Top agencies DOS (Department of State)	$9,919,984	0.6%	Rank history: #6 in FY2021, #17 in FY2023, #50 in FY2024 and not on the FY2025 list; down 7 since FY2021.
14	Communication Methods, LLC Top agencies DECA (Defense Commissary Agency)	$8,931,698	0.5%	Rank history: #28 in FY2021, #20 in FY2023, #18 in FY2024 and #14 in FY2025; up 14 since FY2021.
15	Pride Industries Top agencies DECA (Defense Commissary Agency)	$8,883,067	0.5%	Rank history: #14 in FY2021, #10 in FY2023, #16 in FY2024 and #13 in FY2025; down 1 since FY2021.
16	Research Triangle Institute Top agencies USAID (US Agency for International Development)	$7,772,329	0.5%	Rank history: #21 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
17	Job Options, Incorporated Top agencies DECA (Defense Commissary Agency)	$7,317,537	0.4%	Rank history: #17 in FY2021, #13 in FY2023, #21 in FY2024 and #18 in FY2025; unchanged since FY2021.
18	C.j. Mahan Construction Company, LLC Top agencies Army (Department of the Army)	$6,884,938	0.4%	Rank history: not on the FY2021 list, #26 in FY2023, #32 in FY2024 and #23 in FY2025; new.
19	W. Harris, Government Services Contractor, Inc. Top agencies DECA (Defense Commissary Agency)	$6,333,904	0.4%	Rank history: #49 in FY2021, #28 in FY2023, #30 in FY2024 and #21 in FY2025; up 30 since FY2021.
20	Palmetto Goodwill Services Top agencies USAF (Department of the Air Force)	$6,257,704	0.4%	Rank history: #23 in FY2021, #38 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
21	IEM International, Inc. Top agencies Army (Department of the Army)	$5,992,823	0.4%	Rank history: #26 in FY2021, #24 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
22	Mcclellan Business Park LLC Top agencies DHS (Department of Homeland Security)	$5,454,406	0.3%	Rank history: not on the FY2021 list, #34 in FY2023, #36 in FY2024 and #35 in FY2025; new.
23	Lamain Industries LLC Top agencies DECA (Defense Commissary Agency)	$5,216,398	0.3%	Rank history: #22 in FY2021, #12 in FY2023, #11 in FY2024 and #11 in FY2025; down 1 since FY2021.
24	Rochester Institute of Technology Top agencies DHS (Department of Homeland Security)	$4,840,001	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
25	ABT Global LLC Top agencies USAID (US Agency for International Development)	$4,782,155	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
26	Sourceamerica Top agencies Treasury (Department of the Treasury) Peace Corps USDA (Department of Agriculture)	$4,676,327	0.3%	Rank history: not on the FY2021 list, #51 in FY2023, #39 in FY2024 and #30 in FY2025; up 111 since FY2021.
27	Cgh-Global, LLC Through Cgh-Global Emergency Management Strategies LLC Top agencies USAF (Department of the Air Force)	$4,518,072	0.3%	Rank history: #43 in FY2021, #33 in FY2023, #34 in FY2024 and not on the FY2025 list; up 16 since FY2021.
28	R&R Commissary Services, Incorporated Top agencies DECA (Defense Commissary Agency)	$4,342,545	0.3%	Rank history: #32 in FY2021, #45 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
29	Dunlap Government Solutions, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$4,245,892	0.3%	Rank history: not on the FY2021 list, #35 in FY2023, #38 in FY2024 and #26 in FY2025; up 72 since FY2021.
30	Cubic Digital Intelligence Inc. Through Cubic Defense Applications, Inc. Top agencies USAF (Department of the Air Force)	$4,160,371	0.2%	Rank history: not on the FY2021 list, #97 in FY2023 and not on the FY2024–FY2025 lists; new.
31	Brevard Achievement Center, Inc. Top agencies DECA (Defense Commissary Agency)	$4,036,754	0.2%	Rank history: #25 in FY2021, #27 in FY2023, #37 in FY2024 and #24 in FY2025; down 6 since FY2021.
32	Echelon Services, LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$3,792,402	0.2%	Rank history: not on the FY2021 list, #21 in FY2023, #29 in FY2024 and #25 in FY2025; up 111 since FY2021.
33	General Electric Company Top agencies Army (Department of the Army)	$3,479,988	0.2%	Rank history: #39 in FY2021, #42 in FY2023, #41 in FY2024 and #29 in FY2025; up 6 since FY2021.
34	Koniag, Inc. Through Pacarctic, LLC Top agencies DOJ (Department of Justice)	$3,030,864	0.2%	Rank history: #24 in FY2021, #14 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
35	Servtech Top agencies DECA (Defense Commissary Agency)	$2,729,739	0.2%	Rank history: #56 in FY2021, #36 in FY2023, #24 in FY2024 and #16 in FY2025; up 21 since FY2021.
36	Downtown Business Improvement District Corp Top agencies GSA (General Services Administration)	$2,711,871	0.2%	Rank history: #52 in FY2021, #53 in FY2023, #65 in FY2024 and #57 in FY2025; up 16 since FY2021.
37	Analysis Group Inc. Top agencies DOJ (Department of Justice)	$2,659,641	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 282 since FY2021.
38	Mavagi Enterprises, Inc. Top agencies DECA (Defense Commissary Agency)	$2,470,710	0.1%	Rank history: #74 in FY2021, not on the FY2023 list, #70 in FY2024 and not on the FY2025 list; up 36 since FY2021.
39	Dak Professional Services, LLC Top agencies DECA (Defense Commissary Agency)	$2,419,138	0.1%	Rank history: #30 in FY2021, #22 in FY2023, #35 in FY2024 and #68 in FY2025; down 9 since FY2021.
40	Arcus Group, LLC Top agencies DHS (Department of Homeland Security)	$2,418,470	0.1%	Rank history: #37 in FY2021, #15 in FY2023, #8 in FY2024 and #7 in FY2025; down 3 since FY2021.
41	RTX Corporation Through Raytheon Company Top agencies USAF (Department of the Air Force)	$2,400,565	0.1%	Rank history: not on the FY2021 list, #1 in FY2023 and not on the FY2024–FY2025 lists; new.
42	Galapagos Federal Systems LLC Top agencies USAF (Department of the Air Force)	$2,311,748	0.1%	Rank history: #42 in FY2021, #30 in FY2023, #22 in FY2024 and #28 in FY2025; unchanged since FY2021.
43	Claene Group LLC Top agencies Army (Department of the Army)	$2,230,157	0.1%	Rank history: not on the FY2021 list, #50 in FY2023, #60 in FY2024 and #50 in FY2025; new.
44	Goodwill Industries of Central Alabama, Inc. Top agencies DECA (Defense Commissary Agency)	$2,203,403	0.1%	Rank history: #44 in FY2021, #54 in FY2023, #44 in FY2024 and #37 in FY2025; unchanged since FY2021.
45	The Siegel Group, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,173,978	0.1%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; up 10 since FY2021.
46	Tanaq Support Services, LLC Top agencies HHS (Department of Health and Human Services)	$2,156,875	0.1%	Rank history: #5 in FY2021, #43 in FY2023, #84 in FY2024 and not on the FY2025 list; down 41 since FY2021.
47	L L Brooks Enterprises Inc. Top agencies DECA (Defense Commissary Agency)	$2,117,357	0.1%	Rank history: #34 in FY2021, #23 in FY2023, #25 in FY2024 and #20 in FY2025; down 13 since FY2021.
48	Lamain Crescent Joint Venture LLC Top agencies DECA (Defense Commissary Agency)	$1,974,006	0.1%	Rank history: #19 in FY2021 and not on the FY2023–FY2025 lists; down 29 since FY2021.
49	Nysarc Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,848,405	0.1%	Rank history: #58 in FY2021, #59 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
50	LEO Tech LLC Top agencies USAF (Department of the Air Force)	$1,823,107	0.1%	Rank history: #67 in FY2021 and not on the FY2023–FY2025 lists; up 17 since FY2021.
51	Assets Inc. Top agencies DECA (Defense Commissary Agency)	$1,819,940	0.1%	Rank history: #68 in FY2021, #75 in FY2023, #80 in FY2024 and #71 in FY2025; up 17 since FY2021.
52	21St Century Management Services, Inc. Top agencies DHA (Defense Health Agency)	$1,730,690	0.1%	Rank history: #33 in FY2021, #40 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2021.
53	Western Fire & Safety Co, Inc. Top agencies Navy (Department of the Navy)	$1,641,382	0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; up 43 since FY2021.
54	Cfol International Inc. Top agencies VA (Department of Veterans Affairs)	$1,632,384	0.1%	Rank history: #71 in FY2021, not on the FY2023 list, #66 in FY2024 and #45 in FY2025; up 17 since FY2021.
55	Peninsula Services Top agencies DECA (Defense Commissary Agency) Navy (Department of the Navy)	$1,600,428	0.1%	Rank history: #69 in FY2021, #62 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2021.
56	Dependable On-Site Scan & Shred, Inc. Top agencies VA (Department of Veterans Affairs) ED (Department of Education) DHS (Department of Homeland Security)	$1,574,358	0.1%	Rank history: #75 in FY2021, #47 in FY2023, #56 in FY2024 and #53 in FY2025; up 19 since FY2021.
57	Millennium Health & Fitness, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$1,571,934	0.1%	Rank history: #65 in FY2021, #57 in FY2023, #72 in FY2024 and #60 in FY2025; up 8 since FY2021.
58	The Right 2 Work Corporation Top agencies DECA (Defense Commissary Agency)	$1,544,757	0.1%	Rank history: #48 in FY2021, #71 in FY2023, #48 in FY2024 and #39 in FY2025; down 10 since FY2021.
59	Nemean Solutions, LLC Top agencies USSOCOM (United States Special Operations Command)	$1,519,003	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	Challenge Unlimited, Inc. Top agencies DECA (Defense Commissary Agency)	$1,497,584	0.1%	Rank history: #53 in FY2021, #55 in FY2023, #55 in FY2024 and #32 in FY2025; down 7 since FY2021.
61	F2 Solutions LLC Top agencies HHS (Department of Health and Human Services)	$1,480,321	0.1%	Rank history: #72 in FY2021 and not on the FY2023–FY2025 lists; up 11 since FY2021.
62	Aspire Therapy Services and Consultants, Inc. Top agencies DECA (Defense Commissary Agency)	$1,466,676	0.1%	Rank history: #36 in FY2021, #37 in FY2023, #57 in FY2024 and #47 in FY2025; down 26 since FY2021.
63	Ponderful, LLC Top agencies DECA (Defense Commissary Agency)	$1,458,582	0.1%	Rank history: not on the FY2021 list, #48 in FY2023, #31 in FY2024 and #17 in FY2025; new.
64	Stericycle Inc. 6 awardees, including Shred-It USA LLC Top agencies VA (Department of Veterans Affairs) SSA (Social Security Administration) DOJ (Department of Justice)	$1,445,556	0.1%	Rank history: #64 in FY2021, #65 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
65	Elyon International, Inc. Top agencies USDA (Department of Agriculture)	$1,435,110	0.1%	Rank history: #82 in FY2021, #66 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2021.
66	Jacobs Engineering Group Inc. Through Ch2M Facility Support Services, LLC Top agencies DHS (Department of Homeland Security)	$1,422,273	0.1%	Rank history: #8 in FY2021 and not on the FY2023–FY2025 lists; down 58 since FY2021.
67	Bayaud Enterprises, Inc. Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$1,414,500	0.1%	Rank history: #57 in FY2021, #52 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
68	Goodwill Easter Seals Miami Valley Top agencies DECA (Defense Commissary Agency)	$1,356,273	0.1%	Rank history: #80 in FY2021, not on the FY2023 list, #83 in FY2024 and #63 in FY2025; up 12 since FY2021.
69	Good Vocations, Inc. Top agencies DECA (Defense Commissary Agency)	$1,328,087	0.1%	Rank history: #70 in FY2021, #49 in FY2023, #51 in FY2024 and #36 in FY2025; up 1 since FY2021.
70	Gulf Coast Wilbert Inc. Top agencies VA (Department of Veterans Affairs)	$1,319,675	0.1%	Rank history: not on the FY2021 list, #64 in FY2023, #78 in FY2024 and #76 in FY2025; up 80 since FY2021.
71	Network Enterprises Inc. Top agencies DECA (Defense Commissary Agency)	$1,282,401	0.1%	Rank history: not on the FY2021 list, #72 in FY2023 and not on the FY2024–FY2025 lists; new.
72	Om Group, Inc. Top agencies Army (Department of the Army)	$1,277,643	0.1%	Rank history: #86 in FY2021 and not on the FY2023–FY2025 lists; up 14 since FY2021.
73	City of Murfreesboro Top agencies VA (Department of Veterans Affairs)	$1,275,919	0.1%	Rank history: #89 in FY2021, #78 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2021.
74	Imax Service Corp Top agencies DECA (Defense Commissary Agency)	$1,238,136	0.1%	Rank history: #81 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
75	Narongsak Marican & Son Limited Partnership Top agencies Army (Department of the Army)	$1,195,927	0.1%	Rank history: not on the FY2021 list, #76 in FY2023, not on the FY2024 list and #94 in FY2025; up 245 since FY2021.
76	Consolidated Support Services, Inc. Top agencies DECA (Defense Commissary Agency)	$1,188,069	0.1%	Rank history: #41 in FY2021, #63 in FY2023, #88 in FY2024 and #46 in FY2025; down 35 since FY2021.
77	L3Harris Technologies, Inc. 2 awardees, including L3Harris Technologies Integrated Systems L.P. and L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,185,015	0.1%	Rank history: #31 in FY2021, #31 in FY2023 and not on the FY2024–FY2025 lists; down 46 since FY2021.
78	Great Plains Enterprises Inc. Top agencies DECA (Defense Commissary Agency)	$1,182,880	0.1%	Rank history: #35 in FY2021, #29 in FY2023, #73 in FY2024 and #55 in FY2025; down 43 since FY2021.
79	Pinter Memorials Inc. Top agencies VA (Department of Veterans Affairs)	$1,162,840	0.1%	Rank history: not on the FY2021 list, #68 in FY2023, not on the FY2024 list and #66 in FY2025; up 120 since FY2021.
80	Macrosys, LLC Top agencies DOT (Department of Transportation)	$1,149,670	0.1%	Rank history: not on the FY2021 list, #70 in FY2023, #68 in FY2024 and #97 in FY2025; new.
81	Sikorsky Aircraft Corporation Top agencies Army (Department of the Army)	$1,148,275	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
82	Retail Services WIS Corporation Top agencies DECA (Defense Commissary Agency)	$1,145,525	0.1%	Rank history: not on the FY2021 list, #67 in FY2023, #97 in FY2024 and not on the FY2025 list; up 32 since FY2021.
83	Michael Baker International, LLC Through Sallyport Global Holdings Inc. Top agencies USAF (Department of the Air Force)	$1,120,971	0.1%	Rank history: #3 in FY2021 and not on the FY2023–FY2025 lists; down 80 since FY2021.
84	Beacon Top agencies DECA (Defense Commissary Agency)	$1,111,118	0.1%	Rank history: not on the FY2021 list, #88 in FY2023, not on the FY2024 list and #75 in FY2025; up 54 since FY2021.
85	New Leaf, Inc. Top agencies DECA (Defense Commissary Agency)	$1,108,429	0.1%	Rank history: #60 in FY2021, #90 in FY2023, not on the FY2024 list and #95 in FY2025; down 25 since FY2021.
86	R3 Uniq Inc. Top agencies Army (Department of the Army)	$1,098,915	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 54 since FY2021.
87	Po`okela Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$1,083,007	0.1%	Rank history: not on the FY2021 list, #87 in FY2023, #92 in FY2024 and not on the FY2025 list; new.
88	Goodwill Industries of Southern California Top agencies DECA (Defense Commissary Agency)	$1,082,185	0.1%	Rank history: #98 in FY2021, not on the FY2023 list, #90 in FY2024 and not on the FY2025 list; up 10 since FY2021.
89	Southwest Business Improvement District Top agencies GSA (General Services Administration)	$1,045,257	0.1%	Rank history: not on the FY2021 list, #77 in FY2023, #87 in FY2024 and #79 in FY2025; new.
90	Crux Diving Inc. Top agencies Army (Department of the Army)	$1,040,337	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 76 since FY2021.
91	Safeguard Document Destruction Inc. Top agencies VA (Department of Veterans Affairs) SSA (Social Security Administration) DHS (Department of Homeland Security)	$1,013,235	0.1%	Rank history: #87 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
92	Cam Services, Inc. Top agencies DECA (Defense Commissary Agency)	$1,012,220	0.1%	Rank history: #99 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
93	I Tech AG LLC Top agencies Treasury (Department of the Treasury)	$1,009,459	0.1%	Rank history: #95 in FY2021, #100 in FY2023, #98 in FY2024 and not on the FY2025 list; up 2 since FY2021.
94	Fedtec LLC Top agencies CPSC (Consumer Product Safety Commission)	$1,005,312	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 15 since FY2021.
95	Casillas Partners LLC Top agencies DECA (Defense Commissary Agency)	$988,264	0.1%	Rank history: #62 in FY2021 and not on the FY2023–FY2025 lists; down 33 since FY2021.
96	Standing Rock Sioux Tribe Top agencies HHS (Department of Health and Human Services)	$982,356	0.1%	Rank history: not on the FY2021 list, #80 in FY2023 and not on the FY2024–FY2025 lists; new.
97	Advanced Project Consulting, LLC Top agencies Army (Department of the Army)	$968,878	0.1%	Rank history: #93 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
98	Goodbee & Associates, Inc. Top agencies DOI (Department of the Interior)	$947,632	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 87 since FY2021.
99	Plurax LLC Top agencies DECA (Defense Commissary Agency)	$936,486	0.1%	Rank history: not on the FY2021 list, #98 in FY2023, #93 in FY2024 and #70 in FY2025; up 12 since FY2021.
100	Integrated Medical Solutions, LLC Top agencies DOJ (Department of Justice)	$933,169	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.

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100 of 925 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 56199

Code	Net obligations	Largest contractor
561990 All Other Support Services	$1,510,057,299	Lockheed Martin Corporation

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 $1.67 billion 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 NAICS 56199 contractors in FY2022?

1. Lockheed Martin Corporation ($796M), 2. General Dynamics Corporation ($121M), 3. Booz Allen Hamilton Holding Corporation ($62.8M), 4. Atkins Nuclear Secured Holdings Corporation ($55.4M), 5. CGI Technologies and Solutions Inc. ($47.4M), 6. Sierra Nevada Company, LLC ($33.1M), 7. General Atomic Technologies Corporation ($18.4M), 8. Triple Canopy Inc. ($17.4M), 9. Trace, Inc. ($16M), 10. Sealaska Remediation Solutions, LLC ($12.1M).

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