Top 100 Contractors in PSC AJ13: General Science & Technology R&D Services; General Science & Technology; Experimental Development, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	National Security Technology Accelerator Inc. Top agencies WHS (DOD Washington Headquarters Service)	$129,105,234	38.2%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
2	SNA International LLC Top agencies WHS (DOD Washington Headquarters Service)	$13,529,164	4.0%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
3	Modern Technology Solutions, Inc. Top agencies OSD (Office of the Secretary of Defense)	$12,248,892	3.6%	Rank history: #5 in FY2022, #4 in FY2023, #8 in FY2024 and #5 in FY2025; new, not ranked in FY2020.
4	Aura Technologies, LLC Top agencies Army (Department of the Army)	$10,289,861	3.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	Ensco Inc. Top agencies USAF (Department of the Air Force)	$8,341,569	2.5%	Rank history: #6 in FY2022, #9 in FY2023, #13 in FY2024 and #24 in FY2025; new, not ranked in FY2020.
6	American Systems Corporation Top agencies OSD (Office of the Secretary of Defense)	$8,061,133	2.4%	Rank history: #2 in FY2022, #2 in FY2023, #3 in FY2024 and #1 in FY2025; new, not ranked in FY2020.
7	Technology Service Corp Through Praxis, Inc. Top agencies Navy (Department of the Navy)	$7,735,950	2.3%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
8	Excet, LLC Top agencies Navy (Department of the Navy)	$7,522,572	2.2%	Rank history: #4 in FY2022, #8 in FY2023, #10 in FY2024 and #21 in FY2025; new, not ranked in FY2020.
9	Nanotech Security Corp Top agencies Treasury (Department of the Treasury)	$7,036,233	2.1%	Rank history: #13 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
10	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. and Leidos Security Detection & Automation, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$6,905,740	2.0%	Rank history: #12 in FY2022, #52 in FY2023, #9 in FY2024 and #7 in FY2025; up 14 since FY2020.
11	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies Navy (Department of the Navy)	$6,801,303	2.0%	Rank history: #7 in FY2022, #10 in FY2023, #17 in FY2024 and not on the FY2025 list; down 8 since FY2020.
12	General Dynamics Corporation 3 awardees, including General Dynamics Mission Systems, Inc., General Dynamics Information Technology, Inc. and Praxis Engineering Technologies LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$6,021,538	1.8%	Rank history: #11 in FY2022, #14 in FY2023, #19 in FY2024 and #31 in FY2025; up 5 since FY2020.
13	UI Labs Top agencies OSD (Office of the Secretary of Defense)	$6,000,000	1.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	DCS Corporation Top agencies USAF (Department of the Air Force)	$5,108,850	1.5%	Rank history: #16 in FY2022, #29 in FY2023, #76 in FY2024 and #91 in FY2025; new, not ranked in FY2020.
15	Jacobs Engineering Group Inc. 3 awardees, including The Keyw Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army)	$4,258,702	1.3%	Rank history: #17 in FY2022, #21 in FY2023, #70 in FY2024 and not on the FY2025 list; down 3 since FY2020.
16	Wavefront Technology, LLC Top agencies Treasury (Department of the Treasury)	$3,999,432	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
17	Amivas US LLC Top agencies Army (Department of the Army)	$3,929,316	1.2%	Rank history: not on the FY2022 list, #68 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
18	Tekla Research, Inc. Top agencies Navy (Department of the Navy)	$3,889,406	1.2%	Rank history: #34 in FY2022, #23 in FY2023, #25 in FY2024 and #27 in FY2025; down 11 since FY2020.
19	Perspecta Inc. Through Peraton Technology Services Inc. Top agencies Navy (Department of the Navy)	$3,440,925	1.0%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
20	Alaire Technologies Inc. Top agencies Navy (Department of the Navy)	$3,438,890	1.0%	Rank history: #25 in FY2022, #35 in FY2023, #34 in FY2024 and #23 in FY2025; down 11 since FY2020.
21	The Survice Engineering Company LLC Top agencies Army (Department of the Army)	$3,284,997	1.0%	Rank history: #100 in FY2022, #44 in FY2023, #42 in FY2024 and #44 in FY2025; down 17 since FY2020.
22	Nova Research, Inc. Top agencies Navy (Department of the Navy)	$3,171,700	0.9%	Rank history: #21 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
23	HP Enterprise Services LLC Through Peraton Technology Services Inc. Top agencies Navy (Department of the Navy)	$2,617,982	0.8%	Rank history: #47 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
24	Chesapeake Technology International, Corp. Top agencies Navy (Department of the Navy)	$2,527,710	0.7%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
25	Dignitas Technologies, LLC Top agencies Army (Department of the Army)	$2,450,314	0.7%	Rank history: #26 in FY2022, #37 in FY2023, #27 in FY2024 and #52 in FY2025; down 17 since FY2020.
26	OSI Systems Inc. Through Rapiscan Laboratories, Inc. Top agencies DHS (Department of Homeland Security)	$2,319,659	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	The Johns Hopkins University Through The Johns Hopkins University Applied Physics Laboratory LLC Top agencies DHA (Defense Health Agency)	$2,224,433	0.7%	Rank history: #18 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
28	Robotic Research Opco, LLC Top agencies DHS (Department of Homeland Security)	$2,129,310	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
29	Acuity Edge, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,895,293	0.6%	Rank history: #23 in FY2022, #26 in FY2023, #33 in FY2024 and #84 in FY2025; new, not ranked in FY2020.
30	L3Harris Technologies, Inc. Top agencies Army (Department of the Army)	$1,793,964	0.5%	Rank history: #35 in FY2022, #70 in FY2023, #74 in FY2024 and #79 in FY2025; new, not ranked in FY2020.
31	University Research Foundation, Inc. Top agencies Navy (Department of the Navy)	$1,701,813	0.5%	Rank history: #45 in FY2022, #50 in FY2023, #47 in FY2024 and #51 in FY2025; down 15 since FY2020.
32	The University of Alabama System Through University of Alabama At Birmingham Top agencies NASA (National Aeronautics and Space Administration)	$1,637,105	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Trimble Inc. Top agencies Army (Department of the Army)	$1,590,216	0.5%	Rank history: #19 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
34	Gentex Corporation Top agencies Army (Department of the Army)	$1,467,152	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	University of Illinois 2 awardees Top agencies Army (Department of the Army)	$1,279,660	0.4%	Rank history: #28 in FY2022, #25 in FY2023, #57 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
36	Broadband Antenna Tracking Systems Inc. Top agencies Army (Department of the Army)	$1,258,065	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Inertialwave, Inc. Top agencies Army (Department of the Army)	$1,162,639	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Oxeon Energy LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,116,904	0.3%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
39	The Charles Stark Draper Laboratory, Inc. Top agencies USSOCOM (United States Special Operations Command)	$1,048,152	0.3%	Rank history: #32 in FY2022, #40 in FY2023, #45 in FY2024 and #9 in FY2025; new, not ranked in FY2020.
40	Computational Physics, Inc. Top agencies Navy (Department of the Navy)	$1,035,572	0.3%	Rank history: #42 in FY2022, #43 in FY2023, #68 in FY2024 and #48 in FY2025; down 27 since FY2020.
41	Stellar Science Ltd. Co. Top agencies USAF (Department of the Air Force)	$1,000,000	0.3%	Rank history: #41 in FY2022, #22 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
42	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies Army (Department of the Army)	$929,947	0.3%	Rank history: #57 in FY2022, not on the FY2023–FY2024 lists and #8 in FY2025; new, not ranked in FY2020.
43	Infrascan Inc. Top agencies Army (Department of the Army)	$863,124	0.3%	Rank history: not on the FY2022 list, #41 in FY2023, #72 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
44	Luna Innovations Incorporated Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$861,496	0.3%	Rank history: not on the FY2022 list, #69 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
45	The Mitre Corporation Top agencies DHS (Department of Homeland Security)	$830,199	0.2%	Rank history: #50 in FY2022, #19 in FY2023, #35 in FY2024 and #75 in FY2025; new, not ranked in FY2020.
46	Clear Scientific, LLC Top agencies Army (Department of the Army)	$777,250	0.2%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
47	LSP Technologies Inc. Top agencies USAF (Department of the Air Force)	$750,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	CVD Equipment Corporation Through CVD Mesoscribe Technologies Corp Top agencies USAF (Department of the Air Force)	$749,999	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Third Wave Systems, Inc. Top agencies USAF (Department of the Air Force)	$746,278	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Flextech Alliance, Inc. Top agencies OSD (Office of the Secretary of Defense) NASA (National Aeronautics and Space Administration)	$724,078	0.2%	Rank history: #10 in FY2022, not on the FY2023 list, #100 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
51	International Business Machines Corporation Top agencies Navy (Department of the Navy)	$694,171	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	RB Management Consultants LLC Top agencies VA (Department of Veterans Affairs)	$687,873	0.2%	Rank history: #46 in FY2022, #47 in FY2023, #56 in FY2024 and #55 in FY2025; new, not ranked in FY2020.
53	Radiance Technologies Inc. Top agencies USAF (Department of the Air Force)	$650,000	0.2%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
54	Smart Material Solutions, LLC Top agencies Army (Department of the Army)	$639,139	0.2%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
55	Triencon Services, Inc. Top agencies Navy (Department of the Navy)	$632,785	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Physical Optics Corporation Top agencies Army (Department of the Army)	$599,983	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Fors Marsh Group LLC Top agencies Army (Department of the Army)	$555,012	0.2%	Rank history: #82 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
58	Azul 3D Inc. Top agencies Army (Department of the Army)	$542,046	0.2%	Rank history: #83 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
59	Rutgers, the State University 2 awardees Top agencies NSF (National Science Foundation) Army (Department of the Army)	$528,633	0.2%	Rank history: not on the FY2022–FY2023 lists, #75 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
60	Salas O'brien Federal, LLC Top agencies Navy (Department of the Navy)	$503,325	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	George Washington University (The) Top agencies NSF (National Science Foundation)	$500,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Advanced Functional Fabrics of America, Inc. Top agencies OSD (Office of the Secretary of Defense)	$498,201	0.1%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
63	The Trustees of Columbia University In the City of New York Top agencies NSF (National Science Foundation)	$496,620	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Astin Holdings L.P. Through Lynntech Inc. Top agencies Army (Department of the Army)	$486,266	0.1%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
65	Innovative Wireless Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$426,828	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	The Keyw Corporation Top agencies Navy (Department of the Navy)	$400,000	0.1%	Rank history: not on the FY2022–FY2025 lists; down 51 since FY2020.
67	Michigan Technological University Top agencies Army (Department of the Army)	$398,843	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	TRS Group Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$365,760	0.1%	Rank history: not on the FY2022–FY2025 lists; down 37 since FY2020.
69	Virtualitics Inc. Top agencies Navy (Department of the Navy)	$360,256	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	Physical Sciences Inc. Top agencies Army (Department of the Army)	$333,970	0.1%	Rank history: #55 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
71	Drasgow Consulting Group, LLC Top agencies Army (Department of the Army)	$333,505	0.1%	Rank history: not on the FY2022 list, #97 in FY2023, not on the FY2024 list and #93 in FY2025; new, not ranked in FY2020.
72	Deep Analytics LLC Top agencies DOI (Department of the Interior)	$323,034	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Rocky Mountain Scientific Laboratory, LLC Top agencies OSD (Office of the Secretary of Defense)	$315,557	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	The University of Iowa Top agencies Army (Department of the Army)	$300,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Amaratek, Inc. Top agencies Army (Department of the Army)	$273,452	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Sicpa Holding SA Through Sicpa Securink Corp Top agencies Treasury (Department of the Treasury)	$246,383	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	E-Paga, Inc. Top agencies DHS (Department of Homeland Security)	$234,290	0.1%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
78	Aptim Federal Services LLC Top agencies Navy (Department of the Navy)	$232,600	0.1%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; down 55 since FY2020.
79	Engineering Research Services, LLC Top agencies Army (Department of the Army)	$215,305	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Paragon Space Development Corporation Top agencies NASA (National Aeronautics and Space Administration)	$208,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	State of California Controllers Office Through University of California, LOS Angeles Top agencies Army (Department of the Army)	$204,715	0.1%	Rank history: not on the FY2022 list, #60 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
82	Syndaver Labs Inc. Top agencies Army (Department of the Army)	$175,000	0.1%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
83	Golkowski Czeslaw Top agencies Army (Department of the Army)	$167,499	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	TDA Research, Inc. Top agencies Army (Department of the Army)	$167,497	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Zymeron Corporation Top agencies Army (Department of the Army)	$167,497	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Chromologic LLC Top agencies Army (Department of the Army)	$167,467	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Intelligent Optical Systems, Inc. Top agencies Army (Department of the Army)	$167,455	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Spectral Sensor Solutions, LLC Top agencies Army (Department of the Army)	$167,417	<0.1%	Rank history: not on the FY2022 list, #63 in FY2023, #92 in FY2024 and #63 in FY2025; new, not ranked in FY2020.
89	Michigan Aerospace Corp Top agencies Army (Department of the Army)	$167,375	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Ierus Technologies Inc. Top agencies Army (Department of the Army)	$166,454	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	University of Tennessee Top agencies Army (Department of the Army)	$166,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Applied Research Associates, Inc. Top agencies Army (Department of the Army)	$163,535	<0.1%	Rank history: #9 in FY2022, #6 in FY2023, #7 in FY2024 and #14 in FY2025; new, not ranked in FY2020.
93	Battelle Memorial Institute Top agencies Navy (Department of the Navy)	$161,300	<0.1%	Rank history: #29 in FY2022, #16 in FY2023, #11 in FY2024 and #11 in FY2025; new, not ranked in FY2020.
94	Charles River Analytics, Inc. Top agencies Army (Department of the Army)	$149,960	<0.1%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
95	University of Texas System Through University of Texas At Austin Top agencies VA (Department of Veterans Affairs)	$146,455	<0.1%	Rank history: #84 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Lakepharma, Inc. Top agencies VA (Department of Veterans Affairs)	$136,515	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Ram Photonics LLC Top agencies Navy (Department of the Navy)	$133,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Clemson University Top agencies Navy (Department of the Navy)	$128,500	<0.1%	Rank history: not on the FY2022–FY2023 lists, #59 in FY2024 and #98 in FY2025; new, not ranked in FY2020.
99	Cornerstone Research Group Inc. Top agencies Army (Department of the Army)	$116,421	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	South Dakota Board of Regents Through South Dakota School of Mines & Technology Top agencies NASA (National Aeronautics and Space Administration)	$113,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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 $338 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