Top 100 Contractors in PSC AJ14: General Science and Technology R&D Services; General Science and Technology; R&D Administrative Expenses, FY2021

Name: Top 100 Contractors in PSC AJ14: General Science and Technology R&D Services; General Science and Technology; R&D Administrative Expenses, FY2021
Creator: GovTribe

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

The top 10 won 27% of FY2021 PSC AJ14 contract dollars

Contract obligations: $270,686,335 Net of deobligations, by contracts coded PSC AJ14
Contractors: 464 Parent companies with an obligation
Largest contractor: Danaher Corporation $28 million, 10.3% 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	Danaher Corporation Through Cepheid Top agencies HHS (Department of Health and Human Services)	$27,950,816	10.3%	Rank history: #1 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
2	Advanced Cooling Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$10,755,293	4.0%	Rank history: #40 in FY2022, #2 in FY2023, #30 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
3	Concurrent Technologies Corp Top agencies USAF (Department of the Air Force)	$5,821,932	2.1%	Rank history: #58 in FY2022, not on the FY2023 list, #94 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
4	Motiv Space Systems, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$5,229,322	1.9%	Rank history: #49 in FY2022, not on the FY2023 list, #4 in FY2024 and #8 in FY2025; new, not ranked in FY2020.
5	Troxel Aerospace Industries Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$4,140,159	1.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
6	Metrica, Inc. Through Traclabs Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,997,069	1.5%	Rank history: #21 in FY2022, not on the FY2023 list, #78 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
7	Freedom Photonics LLC Top agencies NASA (National Aeronautics and Space Administration)	$3,950,602	1.5%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
8	Applied Research Associates, Inc. Top agencies DOT (Department of Transportation)	$3,811,514	1.4%	Rank history: #9 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
9	Morsecorp, Inc. Top agencies Army (Department of the Army)	$3,811,443	1.4%	Rank history: #19 in FY2022, #23 in FY2023, #26 in FY2024 and #17 in FY2025; down 8 since FY2020.
10	Healthverity Inc. Top agencies HHS (Department of Health and Human Services)	$3,492,171	1.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
11	Alameda Applied Sciences Corporation Top agencies NASA (National Aeronautics and Space Administration)	$3,195,617	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
12	Mango Materials Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,000,000	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Redwire Space Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,999,662	1.1%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
14	Rei Systems, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,754,145	1.0%	Rank history: #12 in FY2022, #19 in FY2023, not on the FY2024 list and #22 in FY2025; new, not ranked in FY2020.
15	Physical Sciences Inc. 3 awardees, including Faraday Technology, Inc. and Q-Peak, Incorporated Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$2,686,852	1.0%	Rank history: #6 in FY2022, #21 in FY2023, #31 in FY2024 and #26 in FY2025; new, not ranked in FY2020.
16	Creare LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,499,568	0.9%	Rank history: #13 in FY2022, #14 in FY2023, #24 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
17	The Mitre Corporation Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$2,396,981	0.9%	Rank history: #18 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
18	Huntsman Corporation Through Huntsman Nanocomp LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,100,000	0.8%	Rank history: not on the FY2022 list, #16 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
19	Bluehalo Labs, LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$1,986,498	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	RTX Corporation 4 awardees, including Raytheon Company and Blue Canyon Technologies LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$1,872,881	0.7%	Rank history: #55 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
21	Jacobs Engineering Group Inc. 2 awardees, including The Keyw Corporation and Sotera Defense Solutions, Inc. Top agencies Navy (Department of the Navy)	$1,852,056	0.7%	Rank history: #27 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
22	TDA Research, Inc. Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$1,824,985	0.7%	Rank history: #41 in FY2022, #54 in FY2023, not on the FY2024 list and #24 in FY2025; new, not ranked in FY2020.
23	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$1,822,472	0.7%	Rank history: #15 in FY2022, #27 in FY2023, #54 in FY2024 and #79 in FY2025; new, not ranked in FY2020.
24	Mosaic Atm, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,749,198	0.6%	Rank history: not on the FY2022 list, #11 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
25	Mainstream Engineering Corp Top agencies NASA (National Aeronautics and Space Administration)	$1,748,720	0.6%	Rank history: #62 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
26	Apre Instruments Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,676,107	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Alphacore Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,651,467	0.6%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
28	Paragon Space Development Corporation Top agencies NASA (National Aeronautics and Space Administration)	$1,650,568	0.6%	Rank history: not on the FY2022–FY2023 lists, #40 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
29	Adventium Enterprises, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,624,897	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Systems Technology, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,624,878	0.6%	Rank history: #66 in FY2022, not on the FY2023 list, #41 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
31	Polaronyx Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,624,846	0.6%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
32	Atac Top agencies NASA (National Aeronautics and Space Administration)	$1,624,755	0.6%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
33	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies DOT (Department of Transportation)	$1,520,437	0.6%	Rank history: not on the FY2022 list, #49 in FY2023, #58 in FY2024 and #73 in FY2025; new, not ranked in FY2020.
34	Aerodyne Research Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,499,954	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Advalue Photonics Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,496,903	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Cornerstone Research Group Inc. Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$1,416,361	0.5%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
37	The Charles Stark Draper Laboratory, Inc. Top agencies Army (Department of the Army)	$1,365,581	0.5%	Rank history: #26 in FY2022, #76 in FY2023, #59 in FY2024 and #56 in FY2025; down 32 since FY2020.
38	Nanosonic Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,266,410	0.5%	Rank history: #48 in FY2022, #25 in FY2023, not on the FY2024 list and #76 in FY2025; new, not ranked in FY2020.
39	Continuum Dynamics Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,249,032	0.5%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
40	Emergent Space Technologies, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,247,606	0.5%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
41	CFD Research Corporation Top agencies NASA (National Aeronautics and Space Administration)	$1,234,659	0.5%	Rank history: #22 in FY2022, #31 in FY2023, #37 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
42	Dynaflow, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$1,225,052	0.5%	Rank history: not on the FY2022–FY2025 lists; down 28 since FY2020.
43	Interdisciplinary Consulting Corp Top agencies NASA (National Aeronautics and Space Administration)	$1,207,232	0.4%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Intergraph Corporation Through Hexagon US Federal, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,131,755	0.4%	Rank history: #74 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
45	Luna Innovations Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$1,124,817	0.4%	Rank history: not on the FY2022 list, #38 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
46	Precision Combustion, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,124,251	0.4%	Rank history: #42 in FY2022, not on the FY2023–FY2024 lists and #19 in FY2025; new, not ranked in FY2020.
47	Astrobotic Technology Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,098,337	0.4%	Rank history: #3 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
48	Rocket Lab USA Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,092,000	0.4%	Rank history: not on the FY2022 list, #81 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
49	Combustion Research & Flow Technology Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,076,938	0.4%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
50	Opto-Knowledge Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,006,453	0.4%	Rank history: #16 in FY2022, #40 in FY2023, not on the FY2024 list and #72 in FY2025; new, not ranked in FY2020.
51	Coolcad Electronics, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$999,992	0.4%	Rank history: #34 in FY2022, not on the FY2023 list, #71 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
52	Hedgefog Research Inc. Top agencies NASA (National Aeronautics and Space Administration)	$999,969	0.4%	Rank history: #84 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
53	Aster Labs, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$999,749	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	M4 Engineering, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$999,510	0.4%	Rank history: not on the FY2022–FY2024 lists and #94 in FY2025; new, not ranked in FY2020.
55	ATA Engineering, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$896,223	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Hifunda LLC Top agencies NASA (National Aeronautics and Space Administration)	$891,494	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Blueshift LLC Top agencies NASA (National Aeronautics and Space Administration)	$891,358	0.3%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
58	Intelligent Optical Systems, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$886,333	0.3%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
59	Space Micro Inc. Top agencies NASA (National Aeronautics and Space Administration)	$884,988	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	RC Integrated Systems LLC Top agencies NASA (National Aeronautics and Space Administration)	$884,967	0.3%	Rank history: not on the FY2022–FY2023 lists, #27 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
61	Innosys, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$884,843	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Miller Scientific Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$881,500	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Handix Scientific Inc. Top agencies NASA (National Aeronautics and Space Administration)	$881,110	0.3%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
64	SAN Xavier Development Authority Corp Through Advanced Ceramics Manufacturing, LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,998	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Skyhaven Systems, LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,998	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Gloyer-Taylor Laboratories Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,996	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Quinstar Technology, Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$874,988	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Qmagiq LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,988	0.3%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
69	Atmospheric & Space Technology Research Associates LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,953	0.3%	Rank history: #65 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
70	HJ Science & Technology Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,951	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Sierra Lobo Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,946	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Thermavant Technologies LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,931	0.3%	Rank history: #71 in FY2022, not on the FY2023 list, #50 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
73	Quadrus Corporation Top agencies NASA (National Aeronautics and Space Administration)	$874,922	0.3%	Rank history: not on the FY2022–FY2024 lists and #69 in FY2025; new, not ranked in FY2020.
74	Tietronix Software Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,918	0.3%	Rank history: not on the FY2022–FY2023 lists, #73 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
75	Beyond Photonics, LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,900	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Vector Atomic Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,877	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Leiden Measurement Technology LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,832	0.3%	Rank history: not on the FY2022 list, #44 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
78	Amphionic LLC Top agencies NASA (National Aeronautics and Space Administration)	$874,759	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	A10 Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,657	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Dynovas Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,656	0.3%	Rank history: not on the FY2022 list, #74 in FY2023, #66 in FY2024 and #44 in FY2025; new, not ranked in FY2020.
81	Avmet Applications, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,651	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	E Beam Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,649	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Flight Works, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,584	0.3%	Rank history: #4 in FY2022, not on the FY2023 list, #7 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
84	Greensight Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,504	0.3%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
85	Innovative Scientific Solutions Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,230	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Psionic, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$874,183	0.3%	Rank history: #28 in FY2022, #7 in FY2023, not on the FY2024 list and #21 in FY2025; new, not ranked in FY2020.
87	Relative Dynamics Inc. Top agencies NASA (National Aeronautics and Space Administration)	$873,822	0.3%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
88	Ascending Node Technologies LLC Top agencies NASA (National Aeronautics and Space Administration)	$873,820	0.3%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
89	Impossible Sensing LLC Top agencies NASA (National Aeronautics and Space Administration)	$873,783	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Photonsystems, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$868,263	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Sonalysts Inc. Top agencies Navy (Department of the Navy)	$865,195	0.3%	Rank history: #14 in FY2022, #20 in FY2023, #34 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
92	Wecoso, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$855,095	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Earthly Dynamics, LLC Top agencies Army (Department of the Army)	$828,321	0.3%	Rank history: #52 in FY2022, #41 in FY2023, #28 in FY2024 and #20 in FY2025; down 83 since FY2020.
94	Brisk Computing LLC Top agencies NASA (National Aeronautics and Space Administration)	$814,840	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Architecture Technology Inc. 2 awardees, including Atc-Ny Inc. Top agencies NASA (National Aeronautics and Space Administration)	$791,496	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Nexolve Holding Company, LLC Top agencies NASA (National Aeronautics and Space Administration)	$779,978	0.3%	Rank history: not on the FY2022 list, #28 in FY2023, #19 in FY2024 and #31 in FY2025; new, not ranked in FY2020.
97	Mikel, Inc. Top agencies Navy (Department of the Navy)	$776,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy)	$765,618	0.3%	Rank history: not on the FY2022–FY2025 lists; down 95 since FY2020.
99	Innovative Imaging & Research Corp Top agencies NASA (National Aeronautics and Space Administration)	$760,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Nahlia Inc. Top agencies NASA (National Aeronautics and Space Administration)	$759,968	0.3%	Rank history: not on the FY2022–FY2023 lists, #83 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.

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100 of 464 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 $272 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 AJ14 contractors in FY2021?

1. Danaher Corporation ($28M), 2. Advanced Cooling Technologies Inc. ($10.8M), 3. Concurrent Technologies Corp ($5.82M), 4. Motiv Space Systems, Inc. ($5.23M), 5. Troxel Aerospace Industries Incorporated ($4.14M), 6. Metrica, Inc. ($4M), 7. Freedom Photonics LLC ($3.95M), 8. Applied Research Associates, Inc. ($3.81M), 9. Morsecorp, Inc. ($3.81M), 10. Healthverity Inc. ($3.49M).

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