Top 100 Contractors in PSC 2930: Engine Cooling System Components, Nonaircraft, FY2021

Name: Top 100 Contractors in PSC 2930: Engine Cooling System Components, Nonaircraft, FY2021
Creator: GovTribe

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

The top 10 won 46% of FY2021 PSC 2930 contract dollars

Contract obligations: $15,472,438 Net of deobligations, by contracts coded PSC 2930
Contractors: 210 Parent companies with an obligation
Largest contractor: W. W. Williams Company LLC the $1.65 million, 9.4% 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	W. W. Williams Company LLC the 2 awardees, including The W.w. Williams Company, LLC Top agencies DHS (Department of Homeland Security)	$1,645,437	9.4%	Rank history: #4 in FY2022, #26 in FY2023, #87 in FY2024 and not on the FY2025 list; up 3 since FY2020.
2	Honeywell International Inc. 2 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,551,640	8.9%	Rank history: #1 in FY2022, #1 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
3	Clarke Power Services, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$1,122,435	6.4%	Rank history: #51 in FY2022, #59 in FY2023, #13 in FY2024 and #37 in FY2025; up 14 since FY2020.
4	Ross Equipment Inc. Top agencies DLA (Defense Logistics Agency)	$610,890	3.5%	Rank history: #17 in FY2022, not on the FY2023 list, #77 in FY2024 and not on the FY2025 list; up 11 since FY2020.
5	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$597,550	3.4%	Rank history: #7 in FY2022, #9 in FY2023, #4 in FY2024 and #6 in FY2025; up 3 since FY2020.
6	Adams Thermal Systems Inc. Top agencies DLA (Defense Logistics Agency)	$544,267	3.1%	Rank history: #11 in FY2022, #22 in FY2023, #6 in FY2024 and #20 in FY2025; up 17 since FY2020.
7	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$523,665	3.0%	Rank history: #16 in FY2022, #19 in FY2023, #11 in FY2024 and #31 in FY2025; up 15 since FY2020.
8	Cummins Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$493,255	2.8%	Rank history: #9 in FY2022, #10 in FY2023, #7 in FY2024 and #12 in FY2025; up 17 since FY2020.
9	Hunter Defense Technolog Through HDT Expeditionary Systems Inc. Top agencies DLA (Defense Logistics Agency)	$444,964	2.6%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
10	Am General LLC Top agencies DLA (Defense Logistics Agency)	$437,732	2.5%	Rank history: #8 in FY2022, #6 in FY2023, #8 in FY2024 and #1 in FY2025; new, not ranked in FY2020.
11	Penn Detroit Diesel Allison LLC Through Penn Power Group LLC Top agencies DLA (Defense Logistics Agency)	$401,690	2.3%	Rank history: #6 in FY2022, #8 in FY2023, #33 in FY2024 and not on the FY2025 list; up 50 since FY2020.
12	Caterpillar Inc. Top agencies DLA (Defense Logistics Agency)	$396,791	2.3%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
13	Ronal Industries, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$395,730	2.3%	Rank history: not on the FY2022 list, #4 in FY2023, #47 in FY2024 and #17 in FY2025; up 193 since FY2020.
14	Applied Companies Top agencies Navy (Department of the Navy)	$391,254	2.2%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
15	Tecmotiv Corporation Through Tecmotiv (Usa), Inc. Top agencies DLA (Defense Logistics Agency)	$293,501	1.7%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
16	Marvin Engineering Co, Inc. Through Marvin Land Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$237,200	1.4%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; up 52 since FY2020.
17	Phillips Corporation Top agencies NASA (National Aeronautics and Space Administration)	$213,603	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
18	Performance Diesel Inc. Top agencies DHS (Department of Homeland Security)	$203,833	1.2%	Rank history: #54 in FY2022, #91 in FY2023, #97 in FY2024 and #75 in FY2025; new, not ranked in FY2020.
19	Central Power Systems & Services, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$198,279	1.1%	Rank history: #15 in FY2022, #21 in FY2023, not on the FY2024 list and #8 in FY2025; up 35 since FY2020.
20	Southern Automotive Wholesalers, Inc. Top agencies DLA (Defense Logistics Agency)	$194,450	1.1%	Rank history: #22 in FY2022, #28 in FY2023, #52 in FY2024 and not on the FY2025 list; up 11 since FY2020.
21	General Motors Company Top agencies DLA (Defense Logistics Agency)	$189,620	1.1%	Rank history: #42 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
22	RDO Holdings Co. Through RDO Agriculture Equipment Co Top agencies DLA (Defense Logistics Agency)	$189,054	1.1%	Rank history: #24 in FY2022, #36 in FY2023, #60 in FY2024 and not on the FY2025 list; up 14 since FY2020.
23	Lanzen, Incorporated Top agencies DLA (Defense Logistics Agency)	$177,001	1.0%	Rank history: #28 in FY2022, #29 in FY2023, #25 in FY2024 and #32 in FY2025; down 5 since FY2020.
24	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$169,111	1.0%	Rank history: #19 in FY2022, #54 in FY2023, #71 in FY2024 and #10 in FY2025; new, not ranked in FY2020.
25	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$153,421	0.9%	Rank history: #25 in FY2022, not on the FY2023 list, #89 in FY2024 and #95 in FY2025; down 4 since FY2020.
26	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$143,864	0.8%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; down 25 since FY2020.
27	Sims Pump Valve Co, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$141,697	0.8%	Rank history: #26 in FY2022, #25 in FY2023, #12 in FY2024 and #28 in FY2025; down 8 since FY2020.
28	Stewart & Stevenson Fdda LLC 4 awardees, including Engine Systems, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$132,345	0.8%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
29	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$124,508	0.7%	Rank history: not on the FY2022 list, #79 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
30	Johnson & Towers Inc. 2 awardees Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$120,322	0.7%	Rank history: #29 in FY2022, #31 in FY2023, #65 in FY2024 and #9 in FY2025; new, not ranked in FY2020.
31	Rolls-Royce Military Aero Engines Ltd Through Rolls-Royce Solutions America Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$117,375	0.7%	Rank history: not on the FY2022 list, #18 in FY2023 and not on the FY2024–FY2025 lists; down 24 since FY2020.
32	Renk Systems Corporation Top agencies Navy (Department of the Navy)	$114,712	0.7%	Rank history: #87 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
33	Ohio Machinery Co Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$104,529	0.6%	Rank history: #39 in FY2022, #84 in FY2023, #63 in FY2024 and #57 in FY2025; down 3 since FY2020.
34	Federal Realty Investment Co LLC Top agencies DLA (Defense Logistics Agency)	$98,679	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	High Purity Northwest, Inc. Top agencies Army (Department of the Army)	$92,697	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	OLB Associates LLC Top agencies DLA (Defense Logistics Agency)	$83,553	0.5%	Rank history: #55 in FY2022, #100 in FY2023, #64 in FY2024 and #94 in FY2025; up 38 since FY2020.
37	Pines Quality Inc. Top agencies DLA (Defense Logistics Agency)	$82,539	0.5%	Rank history: #41 in FY2022, #32 in FY2023, #38 in FY2024 and #50 in FY2025; up 6 since FY2020.
38	EOS Inc. Top agencies DLA (Defense Logistics Agency)	$82,286	0.5%	Rank history: #61 in FY2022, not on the FY2023 list, #49 in FY2024 and #51 in FY2025; up 14 since FY2020.
39	RTX Corporation Through Raytheon Company Top agencies Army (Department of the Army)	$80,224	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	VSE Corporation 2 awardees, including Wheeler Fleet Solutions, Co. Top agencies DLA (Defense Logistics Agency)	$79,326	0.5%	Rank history: #52 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
41	Seahorse Defense Supply, LLC Top agencies DHS (Department of Homeland Security)	$76,233	0.4%	Rank history: not on the FY2022–FY2023 lists, #50 in FY2024 and not on the FY2025 list; down 3 since FY2020.
42	General Dynamics Corporation Through General Dynamics Land Systems - Canada Corporation Top agencies DLA (Defense Logistics Agency)	$75,856	0.4%	Rank history: not on the FY2022 list, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
43	Porobond Products, LLC Top agencies DLA (Defense Logistics Agency)	$74,086	0.4%	Rank history: #10 in FY2022, #20 in FY2023, #23 in FY2024 and #5 in FY2025; down 8 since FY2020.
44	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$71,892	0.4%	Rank history: not on the FY2022–FY2023 lists, #53 in FY2024 and #13 in FY2025; up 51 since FY2020.
45	Alabama Engine Company, LLC Top agencies DLA (Defense Logistics Agency)	$69,105	0.4%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
46	Precision Metals Corp. Top agencies DLA (Defense Logistics Agency)	$68,100	0.4%	Rank history: not on the FY2022 list, #35 in FY2023, #35 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
47	Defense Supply & Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$67,806	0.4%	Rank history: not on the FY2022–FY2023 lists, #32 in FY2024 and #71 in FY2025; up 70 since FY2020.
48	WM Industries, LLC Top agencies DLA (Defense Logistics Agency)	$61,860	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$61,100	0.4%	Rank history: #31 in FY2022, #49 in FY2023, #16 in FY2024 and #62 in FY2025; up 9 since FY2020.
50	Fincantieri Marine Systems North America Inc. Top agencies DLA (Defense Logistics Agency)	$58,650	0.3%	Rank history: #18 in FY2022, #33 in FY2023, #17 in FY2024 and not on the FY2025 list; up 14 since FY2020.
51	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$54,332	0.3%	Rank history: #21 in FY2022, #50 in FY2023, #57 in FY2024 and #40 in FY2025; down 1 since FY2020.
52	Spartan Motors, Inc. Through The Shyft Group Usa, Inc. Top agencies DLA (Defense Logistics Agency)	$52,906	0.3%	Rank history: #40 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
53	Fairbanks Morse LLC 2 awardees, including Breco International, LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$52,727	0.3%	Rank history: #73 in FY2022, not on the FY2023 list, #66 in FY2024 and not on the FY2025 list; up 81 since FY2020.
54	Longhorn Regional Service Center, LLC Top agencies DLA (Defense Logistics Agency)	$47,498	0.3%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; up 46 since FY2020.
55	Genesis JIT LLC Top agencies DLA (Defense Logistics Agency)	$47,408	0.3%	Rank history: not on the FY2022 list, #57 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
56	Area Diesel Service Inc. Top agencies DLA (Defense Logistics Agency)	$45,746	0.3%	Rank history: #43 in FY2022, #77 in FY2023, #94 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
57	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$44,923	0.3%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
58	U.s.a. Spares Inc. Top agencies DLA (Defense Logistics Agency)	$43,290	0.2%	Rank history: #46 in FY2022, not on the FY2023–FY2024 lists and #53 in FY2025; new, not ranked in FY2020.
59	Boatswain's Locker I, Incorporated Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$39,870	0.2%	Rank history: #57 in FY2022, #55 in FY2023, #88 in FY2024 and #83 in FY2025; up 95 since FY2020.
60	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$39,376	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Double Rocker Holdings Inc. Through Womack Machine Supply Co., LLC Top agencies DLA (Defense Logistics Agency)	$37,700	0.2%	Rank history: not on the FY2022–FY2025 lists; up 108 since FY2020.
62	The W.w. Williams Company, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$37,457	0.2%	Rank history: not on the FY2022–FY2025 lists; up 113 since FY2020.
63	Oxnard Precision Fabrication, Inc. Top agencies DLA (Defense Logistics Agency)	$35,909	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$35,850	0.2%	Rank history: #88 in FY2022, #15 in FY2023, #15 in FY2024 and not on the FY2025 list; up 30 since FY2020.
65	Hy-Test Industries, LLC Top agencies DLA (Defense Logistics Agency)	$35,794	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$33,215	0.2%	Rank history: not on the FY2022–FY2025 lists; down 33 since FY2020.
67	Melton Sales & Service Top agencies DLA (Defense Logistics Agency)	$32,864	0.2%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; down 51 since FY2020.
68	Nidaz LLC Top agencies DHS (Department of Homeland Security)	$32,595	0.2%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
69	Tate Andale, LLC Top agencies Navy (Department of the Navy)	$32,372	0.2%	Rank history: not on the FY2022 list, #45 in FY2023, #14 in FY2024 and #14 in FY2025; up 8 since FY2020.
70	BAE Systems PLC Through BAE Systems Land & Armaments L.P. Top agencies DLA (Defense Logistics Agency)	$32,027	0.2%	Rank history: #79 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2020.
71	Nasco Aerospace and Electronics LLC Top agencies Navy (Department of the Navy)	$31,488	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Talan Industries LLC Top agencies DLA (Defense Logistics Agency)	$31,038	0.2%	Rank history: not on the FY2022–FY2025 lists; down 62 since FY2020.
73	Culpepper Radiator Service, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$29,270	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Terra Group Corp. Top agencies DLA (Defense Logistics Agency)	$27,347	0.2%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
75	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$27,174	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$26,351	0.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; down 50 since FY2020.
77	Augusta Engine Parts, Inc. Top agencies DLA (Defense Logistics Agency)	$25,301	0.1%	Rank history: #97 in FY2022, #96 in FY2023 and not on the FY2024–FY2025 lists; up 60 since FY2020.
78	Engine Power, Inc. Top agencies DLA (Defense Logistics Agency)	$25,267	0.1%	Rank history: #58 in FY2022, #76 in FY2023, #93 in FY2024 and #85 in FY2025; down 22 since FY2020.
79	Amsted Graphite Materials LLC Through Baltimore Aircoil Company, Inc. Top agencies DOS (Department of State)	$23,865	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Equipment Parts Sales Top agencies DLA (Defense Logistics Agency)	$21,945	0.1%	Rank history: #74 in FY2022, #48 in FY2023, #78 in FY2024 and #54 in FY2025; unchanged since FY2020.
81	Mack Boring & Parts Co Top agencies DLA (Defense Logistics Agency)	$21,282	0.1%	Rank history: #56 in FY2022, not on the FY2023 list, #69 in FY2024 and #78 in FY2025; up 102 since FY2020.
82	Thermo Craft Engineering Corp. Top agencies DLA (Defense Logistics Agency)	$21,250	0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
83	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$21,218	0.1%	Rank history: #3 in FY2022, #5 in FY2023, #2 in FY2024 and #2 in FY2025; down 42 since FY2020.
84	Greene Metal Products, Inc. Top agencies DLA (Defense Logistics Agency)	$20,835	0.1%	Rank history: not on the FY2022–FY2025 lists; up 71 since FY2020.
85	United Coolair Corp Top agencies DOS (Department of State)	$20,782	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Carter Machinery Company, Incorporated 2 awardees Top agencies USAGM (US Agency for Global Media)	$19,372	0.1%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
87	D & W Diesel Inc. Top agencies DLA (Defense Logistics Agency)	$18,870	0.1%	Rank history: not on the FY2022–FY2025 lists; up 105 since FY2020.
88	JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$18,149	0.1%	Rank history: #96 in FY2022, not on the FY2023 list, #54 in FY2024 and #64 in FY2025; new, not ranked in FY2020.
89	Fairlane Tool Company, Inc. Top agencies Army (Department of the Army)	$18,070	0.1%	Rank history: #91 in FY2022, #93 in FY2023, #3 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
90	Giga, Inc. Top agencies DLA (Defense Logistics Agency)	$17,990	0.1%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 28 since FY2020.
91	The Dewey Electronics Corporation Top agencies DLA (Defense Logistics Agency)	$16,768	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Cargotec OYJ Through Independent Rough Terrain Center LLC Top agencies DLA (Defense Logistics Agency)	$16,739	0.1%	Rank history: #53 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; down 50 since FY2020.
93	Worldwide Equipment Enterprises Inc. Through Worldwide Equipment Inc. Top agencies DLA (Defense Logistics Agency)	$16,379	0.1%	Rank history: #78 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
94	C P Brodeur, Inc. Top agencies DHS (Department of Homeland Security)	$16,234	0.1%	Rank history: not on the FY2022–FY2025 lists; up 57 since FY2020.
95	Dion International Trucks, LLC Top agencies DLA (Defense Logistics Agency)	$14,575	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Hupp & Associates Inc. Top agencies DLA (Defense Logistics Agency)	$14,126	0.1%	Rank history: not on the FY2022–FY2024 lists and #91 in FY2025; new, not ranked in FY2020.
97	Paxton Co Top agencies DHS (Department of Homeland Security)	$14,108	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	R.w. Fernstrum & Company Top agencies Army (Department of the Army)	$14,084	0.1%	Rank history: #64 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
99	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$14,067	0.1%	Rank history: #63 in FY2022, not on the FY2023–FY2024 lists and #66 in FY2025; up 7 since FY2020.
100	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$13,627	0.1%	Rank history: not on the FY2022 list, #86 in FY2023, #36 in FY2024 and #25 in FY2025; down 1 since FY2020.

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100 of 210 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 $17.4 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 2930 contractors in FY2021?

1. W. W. Williams Company LLC the ($1.65M), 2. Honeywell International Inc. ($1.55M), 3. Clarke Power Services, Inc. ($1.12M), 4. Ross Equipment Inc. ($611K), 5. Oshkosh Corp ($598K), 6. Adams Thermal Systems Inc. ($544K), 7. Ruta Supplies Inc. ($524K), 8. Cummins Inc. ($493K), 9. Hunter Defense Technolog ($445K), 10. Am General LLC ($438K).

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