Top 100 Contractors in PSC 56: Construction and Building Material, FY2021

Name: Top 100 Contractors in PSC 56: Construction and Building Material, FY2021
Creator: GovTribe

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

The top 10 won 70% of FY2021 PSC 56 contract dollars

Contract obligations: $689,714,916 Net of deobligations, by contracts coded PSC 56 or a code under it
Contractors: 1,215 Parent companies with an obligation
Largest contractor: Supplycore LLC $174 million, 24.8% 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	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$173,502,891	24.8%	Rank history: #1 in FY2022, #3 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since FY2020.
2	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$136,251,965	19.4%	Rank history: #2 in FY2022, #1 in FY2023, #11 in FY2024 and not on the FY2025 list; unchanged since FY2020.
3	Noble Supply & Logistics, LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$80,236,041	11.4%	Rank history: #3 in FY2022, #2 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since FY2020.
4	Alfab Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$44,414,403	6.3%	Rank history: #8 in FY2022, #26 in FY2023, #4 in FY2024 and #24 in FY2025; up 1 since FY2020.
5	Theodor Wille Intertrade GMBH 2 awardees, including Atlantic Diving Supply, Inc. and TWI Usa, LLC Top agencies DLA (Defense Logistics Agency) GSA (General Services Administration) Army (Department of the Army)	$11,221,694	1.6%	Rank history: #11 in FY2022, #6 in FY2023, #6 in FY2024 and not on the FY2025 list; up 7 since FY2020.
6	Amentum Services, Inc. Through URS Federal Services International, Inc. Top agencies USAF (Department of the Air Force)	$10,776,000	1.5%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
7	Pacific TECH Construction Inc. Top agencies Army (Department of the Army)	$9,112,063	1.3%	Rank history: #4 in FY2022, #7 in FY2023, #14 in FY2024 and #5 in FY2025; up 9 since FY2020.
8	Veterans Range Solutions, LLC Top agencies DOJ (Department of Justice)	$7,766,122	1.1%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
9	A.m.s. Network, LLC 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,752,067	1.1%	Rank history: #9 in FY2022 and not on the FY2023–FY2025 lists; up 62 since FY2020.
10	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$6,500,020	0.9%	Rank history: #44 in FY2022, not on the FY2023 list, #1 in FY2024 and #1 in FY2025; down 3 since FY2020.
11	Crowley Holdings LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) USAF (Department of the Air Force)	$5,650,032	0.8%	Rank history: #12 in FY2022, #14 in FY2023, #18 in FY2024 and #15 in FY2025; unchanged since FY2020.
12	Tawreek Dimensions Establishment (Tde) Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$5,642,073	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Green Dream International LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) USDA (Department of Agriculture)	$3,817,811	0.5%	Rank history: #82 in FY2022, not on the FY2023–FY2024 lists and #70 in FY2025; up 57 since FY2020.
14	Saudi Naval Support Co. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$3,594,654	0.5%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
15	Warhorse Training Solutions, LLC Top agencies DOJ (Department of Justice)	$3,577,303	0.5%	Rank history: not on the FY2022 list, #52 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
16	North Wind Construction Services LLC Top agencies USAF (Department of the Air Force)	$3,570,959	0.5%	Rank history: not on the FY2022–FY2023 lists, #24 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
17	GMS Industrial Supply, Inc. Top agencies GSA (General Services Administration)	$3,274,364	0.5%	Rank history: #31 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
18	TWI Usa, LLC Top agencies DLA (Defense Logistics Agency)	$2,982,262	0.4%	Rank history: #47 in FY2022, not on the FY2023 list, #12 in FY2024 and not on the FY2025 list; up 377 since FY2020.
19	Belt Built Contracting, LLC Top agencies DOJ (Department of Justice)	$2,848,554	0.4%	Rank history: not on the FY2022–FY2025 lists; up 95 since FY2020.
20	Transco Industries, Inc. Top agencies Army (Department of the Army)	$2,813,533	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	Chatmon-Vjr, JV, LLC Top agencies USAF (Department of the Air Force)	$2,548,250	0.4%	Rank history: #34 in FY2022, #63 in FY2023, not on the FY2024 list and #29 in FY2025; new, not ranked in FY2020.
22	American Classic Construction Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) USAF (Department of the Air Force)	$2,538,211	0.4%	Rank history: #15 in FY2022, #15 in FY2023, #13 in FY2024 and #17 in FY2025; down 5 since FY2020.
23	Industries for the Blind and Visually Impaired, Inc. Top agencies USAF (Department of the Air Force)	$2,500,000	0.4%	Rank history: #19 in FY2022, #38 in FY2023, #34 in FY2024 and #39 in FY2025; unchanged since FY2020.
24	Miller Materials, Inc. Top agencies Army (Department of the Army)	$2,190,720	0.3%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
25	South Texas Lighthouse for the Blind Foundation Top agencies USAF (Department of the Air Force)	$2,069,439	0.3%	Rank history: #28 in FY2022, #29 in FY2023, #27 in FY2024 and #18 in FY2025; new, not ranked in FY2020.
26	Appalachian Aggregates LLC 5 awardees, including Apac-Mississippi, Inc., Evans Construction Company and Staker & Parson Companies Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) USDA (Department of Agriculture)	$2,051,157	0.3%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; up 59 since FY2020.
27	Gulf Holdings, LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) USDA (Department of Agriculture)	$2,049,059	0.3%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; up 23 since FY2020.
28	Midwest Construction Co Top agencies Army (Department of the Army)	$2,002,067	0.3%	Rank history: #16 in FY2022, #16 in FY2023, #19 in FY2024 and #33 in FY2025; up 17 since FY2020.
29	CFM Project Consulting Group Inc. Top agencies DOJ (Department of Justice)	$1,920,108	0.3%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 88 since FY2020.
30	Nugeneration Technologies LLC Top agencies GSA (General Services Administration) Navy (Department of the Navy)	$1,717,334	0.2%	Rank history: #62 in FY2022, #59 in FY2023, #50 in FY2024 and #41 in FY2025; up 10 since FY2020.
31	Frontier Ala Top agencies Army (Department of the Army)	$1,703,335	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
32	O Garcia II LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$1,661,625	0.2%	Rank history: not on the FY2022–FY2025 lists; up 356 since FY2020.
33	Seikitokyu Kogyo Co., Ltd. Top agencies USAF (Department of the Air Force)	$1,512,469	0.2%	Rank history: #91 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
34	Fedsource Inc. Top agencies USAF (Department of the Air Force)	$1,481,656	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Richard J. Mertens, Inc. Top agencies Army (Department of the Army)	$1,474,850	0.2%	Rank history: not on the FY2022–FY2025 lists; up 164 since FY2020.
36	Specialized Government Sourcing, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) USAF (Department of the Air Force)	$1,427,166	0.2%	Rank history: #30 in FY2022, #20 in FY2023, #32 in FY2024 and #36 in FY2025; down 15 since FY2020.
37	Huang's Inc. Top agencies GSA (General Services Administration)	$1,278,796	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Tecta America Corp. Top agencies Army (Department of the Army)	$1,278,795	0.2%	Rank history: not on the FY2022 list, #45 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
39	SC Vocations & Individual Advancement, Inc. Top agencies Army (Department of the Army)	$1,212,520	0.2%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
40	Astrea Group for Trading and Contracting Top agencies USAF (Department of the Air Force)	$1,134,587	0.2%	Rank history: not on the FY2022–FY2025 lists; up 220 since FY2020.
41	Uh Structures Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,090,667	0.2%	Rank history: not on the FY2022–FY2025 lists; up 67 since FY2020.
42	Omang Technologies & Trading L.l.c Top agencies USAF (Department of the Air Force)	$1,074,363	0.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; up 168 since FY2020.
43	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$1,071,912	0.2%	Rank history: not on the FY2022–FY2025 lists; up 32 since FY2020.
44	Arcus Group, LLC Top agencies DHS (Department of Homeland Security)	$1,066,146	0.2%	Rank history: #58 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
45	Bluefin, LLC Top agencies Army (Department of the Army)	$1,056,465	0.2%	Rank history: #49 in FY2022, #31 in FY2023, #48 in FY2024 and #49 in FY2025; up 8 since FY2020.
46	Machine Tools Usa, Inc. Top agencies Army (Department of the Army)	$1,017,030	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Dou'a Al Kuwait EST Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,006,353	0.1%	Rank history: #57 in FY2022 and not on the FY2023–FY2025 lists; up 112 since FY2020.
48	AKS Industries Inc. Top agencies USAF (Department of the Air Force)	$983,606	0.1%	Rank history: not on the FY2022–FY2025 lists; up 165 since FY2020.
49	Asphalt Systems Inc. Top agencies DOI (Department of the Interior)	$976,255	0.1%	Rank history: not on the FY2022–FY2023 lists, #84 in FY2024 and #85 in FY2025; up 48 since FY2020.
50	Prime Veritas General Trading & Contracting Top agencies USAF (Department of the Air Force)	$968,335	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Jefferson Concrete Corp Top agencies Army (Department of the Army)	$962,082	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Rycars Construction, LLC Top agencies USAF (Department of the Air Force)	$927,035	0.1%	Rank history: not on the FY2022–FY2025 lists; up 129 since FY2020.
53	Allied Tube & Conduit Corporation Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice)	$924,860	0.1%	Rank history: #18 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
54	Nally & Haydon, LLC Through Armag Corp Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$895,108	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Ecology Mir Group LLC Top agencies Army (Department of the Army) DOI (Department of the Interior)	$894,467	0.1%	Rank history: not on the FY2022 list, #94 in FY2023, not on the FY2024 list and #80 in FY2025; up 44 since FY2020.
56	Cook Inlet Region Inc. Through Weldin Construction LLC Top agencies USAF (Department of the Air Force)	$868,952	0.1%	Rank history: not on the FY2022–FY2025 lists; down 34 since FY2020.
57	Macgyver Solutions, Inc. Top agencies USAF (Department of the Air Force) GSA (General Services Administration)	$836,854	0.1%	Rank history: not on the FY2022–FY2025 lists; up 237 since FY2020.
58	Renova Environmental Company Top agencies Army (Department of the Army)	$823,262	0.1%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 230 since FY2020.
59	Ore Trading Establishment Top agencies USAF (Department of the Air Force)	$822,151	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Ferguson Enterprises Inc. Top agencies DOI (Department of the Interior) Smithsonian (Smithsonian Institution)	$814,433	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	The Claremont Sales Corp Top agencies GSA (General Services Administration) Navy (Department of the Navy) DHS (Department of Homeland Security)	$808,510	0.1%	Rank history: #81 in FY2022, #81 in FY2023, not on the FY2024 list and #88 in FY2025; up 8 since FY2020.
62	Martin Marietta Materials, Inc. 2 awardees Top agencies Army (Department of the Army) DOI (Department of the Interior)	$797,406	0.1%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
63	Rawan Alfarah Company Top agencies Army (Department of the Army)	$790,524	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	L.l. Carter & Son, Inc. Top agencies Army (Department of the Army)	$790,254	0.1%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
65	Trusted Construction & Facility Support, LLC Top agencies DOJ (Department of Justice)	$785,865	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Controp USA Inc. Top agencies DHS (Department of Homeland Security)	$750,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Custom Fence Co Top agencies USAF (Department of the Air Force)	$732,440	0.1%	Rank history: not on the FY2022 list, #90 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
68	M.c. Dean, Inc. Top agencies WHS (DOD Washington Headquarters Service) DOD (Department of Defense)	$723,982	0.1%	Rank history: not on the FY2022 list, #84 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
69	Astrea Project Management & Trading Services Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$723,094	0.1%	Rank history: not on the FY2022–FY2023 lists, #63 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
70	Ar6-Cram Roofing JV LLC Top agencies USAF (Department of the Air Force)	$713,145	0.1%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
71	Huffman Equipment Rental, Inc. Top agencies Army (Department of the Army)	$710,680	0.1%	Rank history: not on the FY2022 list, #68 in FY2023, not on the FY2024 list and #62 in FY2025; new, not ranked in FY2020.
72	Fabrication Products Inc. Top agencies Army (Department of the Army)	$710,354	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Ahtna, Incorporated Through Ahtna Design-Build Inc. Top agencies USAF (Department of the Air Force)	$705,302	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Continental Flooring Co Top agencies VA (Department of Veterans Affairs) DOS (Department of State) GSA (General Services Administration)	$700,317	0.1%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
75	Premier Global Production Company Inc Top agencies AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security)	$688,093	0.1%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
76	Bahfed Corp Top agencies DOJ (Department of Justice) USAF (Department of the Air Force)	$657,707	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Colaska, Inc. Top agencies USAF (Department of the Air Force)	$650,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Architectural Consulting Group of Chicago Inc. Top agencies Army (Department of the Army)	$639,600	0.1%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; down 60 since FY2020.
79	Skyline Materials, Ltd. Top agencies Army (Department of the Army)	$629,010	0.1%	Rank history: not on the FY2022 list, #54 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
80	Aktio Corporation Top agencies Navy (Department of the Navy)	$625,554	0.1%	Rank history: #54 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
81	Rogue Industries LLC Top agencies USAF (Department of the Air Force)	$599,985	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Houston-Starr Co Through Houston-Starr Doors, LLC Top agencies WHS (DOD Washington Headquarters Service)	$599,255	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Rosbeck Builders Corp Top agencies DHS (Department of Homeland Security)	$596,783	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	CPM Development Corporation Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$591,078	0.1%	Rank history: not on the FY2022–FY2025 lists; up 109 since FY2020.
85	Areaka Trading & Logistics Company Top agencies USAF (Department of the Air Force)	$574,597	0.1%	Rank history: #22 in FY2022, #42 in FY2023, #93 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
86	International Trade Management Group, LLC Top agencies DOI (Department of the Interior)	$562,060	0.1%	Rank history: #14 in FY2022, not on the FY2023 list, #22 in FY2024 and not on the FY2025 list; down 48 since FY2020.
87	Luhr Bros., Inc. Top agencies Army (Department of the Army)	$544,173	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Saint-Gobain Corporation (1) Through Saint-Gobain Performance Plastics Corp Top agencies USAF (Department of the Air Force)	$526,350	0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
89	Mesa Verde Enterprises Inc. 2 awardees, including Aggregate Technologies, LLC Top agencies USAF (Department of the Air Force)	$523,095	0.1%	Rank history: not on the FY2022 list, #93 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
90	Grarok LLC Top agencies Army (Department of the Army)	$514,750	0.1%	Rank history: #87 in FY2022, #69 in FY2023, #59 in FY2024 and #77 in FY2025; up 113 since FY2020.
91	Flood Defense Group LLC Top agencies DOS (Department of State)	$508,869	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Sultan Balad Company Top agencies USAF (Department of the Air Force)	$505,353	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Iron Horse Excavating, Inc. Top agencies DOI (Department of the Interior)	$504,762	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Nasatka Barrier, Incorporated Top agencies USAF (Department of the Air Force)	$504,048	0.1%	Rank history: not on the FY2022–FY2023 lists, #64 in FY2024 and not on the FY2025 list; up 66 since FY2020.
95	Tarpan Construction, LLC Top agencies Army (Department of the Army)	$501,419	0.1%	Rank history: #10 in FY2022, #11 in FY2023, #31 in FY2024 and #67 in FY2025; down 58 since FY2020.
96	Sean W Smith Inc. Top agencies DOI (Department of the Interior)	$500,856	0.1%	Rank history: not on the FY2022–FY2025 lists; down 23 since FY2020.
97	Sturm Welding, Inc. Top agencies Army (Department of the Army)	$483,108	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Chickasaw Nation Through CNI Manufacturing, LLC Top agencies DOT (Department of Transportation)	$467,582	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Next Generation Logistics, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$462,407	0.1%	Rank history: not on the FY2022 list, #65 in FY2023, #76 in FY2024 and #58 in FY2025; new, not ranked in FY2020.
100	Jose Ernesto Salazar, LLC Top agencies USAF (Department of the Air Force)	$459,334	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

Show 75 more

100 of 1,215 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 56

Code	Net obligations	Largest contractor
5680 Miscellaneous Construction Materials	$562,049,554	Supplycore LLC
5610 Mineral Construction Materials, Bulk	$65,771,208	Amentum Services, Inc.
5660 Fencing, Fences, Gates and Components	$22,046,446	Arcus Group, LLC
5650 Roofing and Siding Materials	$12,640,012	Chatmon-Vjr, JV, LLC
5670 Building Components, Prefabricated	$11,947,673	Fedsource Inc.
5640 Wallboard, Building Paper, and Thermal Insulation Materials	$7,288,428	Adirondack Electronics Inc.
5620 Tile, Brick, and Block	$3,332,786	Jefferson Concrete Corp

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 $701 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 PSC 56 contractors in FY2021?

1. Supplycore LLC ($174M), 2. Science Applications International Corporation ($136M), 3. Noble Supply & Logistics, LLC ($80.2M), 4. Alfab Inc. ($44.4M), 5. Theodor Wille Intertrade GMBH ($11.2M), 6. Amentum Services, Inc. ($10.8M), 7. Pacific TECH Construction Inc. ($9.11M), 8. Veterans Range Solutions, LLC ($7.77M), 9. A.m.s. Network, LLC ($7.75M), 10. Arctic Slope Regional Corporation ($6.5M).

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