Top 100 Contractors in PSC AJ13: General Science & Technology R&D Services; General Science & Technology; Experimental Development, FY2025

Name: Top 100 Contractors in PSC AJ13: General Science & Technology R&D Services; General Science & Technology; Experimental Development, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 62% of FY2025 PSC AJ13 contract dollars

Contract obligations: $733,050,616 Net of deobligations, by contracts coded PSC AJ13
Contractors: 131 Parent companies with an obligation
Largest contractor: American Systems Corporation $81.3 million, 10.8% 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	American Systems Corporation Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$81,347,283	10.8%	Rank history: #6 in FY2021, #2 in FY2022, #2 in FY2023 and #3 in FY2024; up 2 since FY2024.
2	Assurance Technology Corp Top agencies Navy (Department of the Navy)	$73,024,218	9.7%	Rank history: not on the FY2021 list, #3 in FY2022, #3 in FY2023 and #5 in FY2024; up 3 since FY2024.
3	Columbus Technologies and Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$60,255,268	8.0%	Rank history: not on the FY2021–FY2024 lists; new.
4	National Security Technology Accelerator Inc. Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$56,486,869	7.5%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; down 3 since FY2024.
5	Modern Technology Solutions, Inc. Top agencies OSD (Office of the Secretary of Defense)	$38,318,348	5.1%	Rank history: #3 in FY2021, #5 in FY2022, #4 in FY2023 and #8 in FY2024; up 3 since FY2024.
6	Avantus Federal LLC Top agencies OSD (Office of the Secretary of Defense)	$34,350,777	4.6%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; unchanged since FY2024.
7	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$33,680,455	4.5%	Rank history: #10 in FY2021, #12 in FY2022, #52 in FY2023 and #9 in FY2024; up 2 since FY2024.
8	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force)	$32,201,000	4.3%	Rank history: #42 in FY2021, #57 in FY2022 and not on the FY2023–FY2024 lists; up 148 since FY2024.
9	The Charles Stark Draper Laboratory, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$27,381,685	3.6%	Rank history: #39 in FY2021, #32 in FY2022, #40 in FY2023 and #45 in FY2024; up 36 since FY2024.
10	Microsoft Corporation Top agencies USAF (Department of the Air Force)	$26,443,546	3.5%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #12 in FY2024; up 2 since FY2024.
11	Battelle Memorial Institute Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense)	$23,944,409	3.2%	Rank history: #93 in FY2021, #29 in FY2022, #16 in FY2023 and #11 in FY2024; unchanged since FY2024.
12	Neany Inc. Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense)	$15,461,638	2.1%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #4 in FY2024; down 8 since FY2024.
13	Mnemonics Inc. Top agencies Navy (Department of the Navy)	$14,980,573	2.0%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023 and #18 in FY2024; up 5 since FY2024.
14	Applied Research Associates, Inc. Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) Army (Department of the Army)	$11,747,454	1.6%	Rank history: #92 in FY2021, #9 in FY2022, #6 in FY2023 and #7 in FY2024; down 7 since FY2024.
15	Mack Defense LLC Top agencies Navy (Department of the Navy)	$10,817,231	1.4%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 38 since FY2024.
16	Rolic Technologies AG Top agencies Treasury (Department of the Treasury)	$10,640,851	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
17	Authentix, Inc. Top agencies Treasury (Department of the Treasury)	$10,543,985	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
18	Amentum Holdings, Inc. 5 awardees, including Amentum Technology, Inc., The Keyw Corporation and Sotera Defense Solutions, Inc. Top agencies Navy (Department of the Navy)	$10,159,394	1.3%	Rank history: not on the FY2021–FY2024 lists; new.
19	Advanced Technology International Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$8,372,142	1.1%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 17 since FY2024.
20	Red Six Aerospace Inc. Top agencies USAF (Department of the Air Force)	$7,895,131	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
21	Excet, LLC Top agencies Navy (Department of the Navy)	$7,881,004	1.0%	Rank history: #8 in FY2021, #4 in FY2022, #8 in FY2023 and #10 in FY2024; down 11 since FY2024.
22	KBR Wyle Services LLC Top agencies Navy (Department of the Navy)	$7,615,609	1.0%	Rank history: not on the FY2021 list, #27 in FY2022, not on the FY2023 list and #14 in FY2024; down 8 since FY2024.
23	Alaire Technologies Inc. Top agencies Navy (Department of the Navy)	$6,992,366	0.9%	Rank history: #20 in FY2021, #25 in FY2022, #35 in FY2023 and #34 in FY2024; up 11 since FY2024.
24	Ensco Inc. Top agencies USAF (Department of the Air Force)	$6,333,407	0.8%	Rank history: #5 in FY2021, #6 in FY2022, #9 in FY2023 and #13 in FY2024; down 11 since FY2024.
25	Huntington Ingalls Industries, Inc. Through HII Technical Solutions Corporation Top agencies Navy (Department of the Navy)	$5,835,913	0.8%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and #16 in FY2024; down 9 since FY2024.
26	Code Metal, Inc. Top agencies USAF (Department of the Air Force)	$5,631,000	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
27	Tekla Research, Inc. Top agencies Navy (Department of the Navy)	$5,489,657	0.7%	Rank history: #18 in FY2021, #34 in FY2022, #23 in FY2023 and #25 in FY2024; down 2 since FY2024.
28	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Army (Department of the Army)	$5,099,245	0.7%	Rank history: not on the FY2021–FY2024 lists; up 130 since FY2024.
29	Aim Intelligent Machines, Inc. Top agencies USAF (Department of the Air Force)	$4,990,237	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
30	Cenith Innovations LLC Top agencies USAF (Department of the Air Force)	$4,208,521	0.6%	Rank history: not on the FY2021 list, #37 in FY2022, #86 in FY2023 and #65 in FY2024; up 35 since FY2024.
31	General Dynamics Corporation 4 awardees, including General Dynamics Information Technology, Inc. and General Dynamics Mission Systems, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,467,656	0.5%	Rank history: #12 in FY2021, #11 in FY2022, #14 in FY2023 and #19 in FY2024; down 12 since FY2024.
32	Envisioneering Inc. Top agencies Navy (Department of the Navy)	$3,010,000	0.4%	Rank history: not on the FY2021 list, #20 in FY2022, #15 in FY2023 and #29 in FY2024; down 3 since FY2024.
33	Human Resources Research Organization (Humrro) Top agencies Army (Department of the Army)	$2,889,916	0.4%	Rank history: not on the FY2021 list, #87 in FY2022, #46 in FY2023 and #46 in FY2024; up 13 since FY2024.
34	Sicpa Securink Corp. Top agencies Treasury (Department of the Treasury)	$2,759,363	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
35	Sri International Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,661,643	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
36	Teledyne Technologies Incorporated Through Nova Research, Inc. Top agencies Navy (Department of the Navy)	$2,621,228	0.3%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #22 in FY2024; down 14 since FY2024.
37	Specpro Sustainment and Environmental, LLC Top agencies EPA (Environmental Protection Agency)	$2,397,130	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
38	Accenture Federal Services LLC Top agencies Army (Department of the Army)	$2,370,883	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
39	Honeywell International Inc. Top agencies Treasury (Department of the Treasury)	$2,214,705	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
40	Semanticbits LLC Through ICF Incorporated, L.L.C. Top agencies Army (Department of the Army)	$2,202,077	0.3%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; down 3 since FY2024.
41	Volta Space Technologies US Inc. Top agencies Navy (Department of the Navy)	$2,182,495	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
42	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies DHA (Defense Health Agency)	$2,162,755	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
43	Systima Technologies Inc. Top agencies Army (Department of the Army)	$2,123,388	0.3%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and #30 in FY2024; down 13 since FY2024.
44	The Survice Engineering Company LLC Top agencies Army (Department of the Army)	$2,113,847	0.3%	Rank history: #21 in FY2021, #100 in FY2022, #44 in FY2023 and #42 in FY2024; down 2 since FY2024.
45	Personnel Decisions Research Institutes, LLC Top agencies Army (Department of the Army)	$2,000,729	0.3%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 10 since FY2024.
46	Sodalis Technologies LLC Top agencies USAF (Department of the Air Force)	$1,826,400	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
47	Allen Control Systems, Inc. Top agencies Army (Department of the Army)	$1,551,554	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
48	Computational Physics, Inc. Top agencies Navy (Department of the Navy)	$1,544,000	0.2%	Rank history: #40 in FY2021, #42 in FY2022, #43 in FY2023 and #68 in FY2024; up 20 since FY2024.
49	Brice Engineering, LLC Top agencies USAF (Department of the Air Force)	$1,355,250	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
50	Rolls-Royce Solutions America Inc. Through Rolls-Royce Corporation Top agencies USAF (Department of the Air Force)	$1,263,910	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
51	University Research Foundation, Inc. Top agencies Navy (Department of the Navy)	$1,258,158	0.2%	Rank history: #31 in FY2021, #45 in FY2022, #50 in FY2023 and #47 in FY2024; down 4 since FY2024.
52	Dignitas Technologies, LLC Top agencies Army (Department of the Army)	$1,239,277	0.2%	Rank history: #25 in FY2021, #26 in FY2022, #37 in FY2023 and #27 in FY2024; down 25 since FY2024.
53	University of Texas At Austin Top agencies Army (Department of the Army)	$1,164,094	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
54	West Virginia University Research Corporation Top agencies Army (Department of the Army)	$1,150,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
55	RB Management Consultants LLC Top agencies VA (Department of Veterans Affairs)	$1,127,168	0.1%	Rank history: #52 in FY2021, #46 in FY2022, #47 in FY2023 and #56 in FY2024; up 1 since FY2024.
56	Peraton Inc. Top agencies Army (Department of the Army)	$1,099,715	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 33 since FY2024.
57	Quadridox Inc. Top agencies DHS (Department of Homeland Security)	$1,078,217	0.1%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; down 31 since FY2024.
58	Applied Information Sciences Inc. Top agencies Army (Department of the Army)	$1,016,225	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
59	Eaton Corporation Top agencies Army (Department of the Army)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	White Cane, Inc. Top agencies Army (Department of the Army)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
61	Lunar Resources Inc. Top agencies Army (Department of the Army)	$999,999	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Caesar Creek Software, LLC Top agencies Army (Department of the Army)	$997,248	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
63	Spectral Sensor Solutions, LLC Top agencies Army (Department of the Army)	$989,486	0.1%	Rank history: #88 in FY2021, not on the FY2022 list, #63 in FY2023 and #92 in FY2024; up 29 since FY2024.
64	GXM Consulting LLC Through GXM Technologies LLC Top agencies Army (Department of the Army)	$924,321	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
65	Summerwind Consultants Inc. Top agencies Army (Department of the Army)	$757,102	0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #58 in FY2024; down 7 since FY2024.
66	Sherpa 6 Inc. Top agencies Army (Department of the Army)	$734,129	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$721,390	0.1%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 23 since FY2024.
68	Mainstream Engineering Corp Top agencies Army (Department of the Army)	$716,584	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Science Applications International Corporation Top agencies Navy (Department of the Navy)	$659,309	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Akita Innovations LLC Top agencies Army (Department of the Army)	$657,152	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; up 1 since FY2024.
71	Oceanit Laboratories Inc. Top agencies Army (Department of the Army)	$600,018	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	Dalcom, LLC Top agencies Army (Department of the Army)	$564,355	0.1%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 15 since FY2024.
73	GSI Environmental Inc. Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$551,534	0.1%	Rank history: not on the FY2021 list, #31 in FY2022, #92 in FY2023 and not on the FY2024 list; up 40 since FY2024.
74	Hyperion Technology Group Inc Top agencies Army (Department of the Army)	$531,166	0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #95 in FY2024; up 21 since FY2024.
75	The Mitre Corporation Top agencies DHS (Department of Homeland Security)	$519,992	0.1%	Rank history: #45 in FY2021, #50 in FY2022, #19 in FY2023 and #35 in FY2024; down 40 since FY2024.
76	CFD Research Corporation Top agencies DHS (Department of Homeland Security)	$502,701	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Turbineone Inc. Top agencies Army (Department of the Army)	$500,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Aptima Inc. Top agencies Army (Department of the Army)	$499,798	0.1%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; down 14 since FY2024.
79	L3Harris Technologies, Inc. Top agencies Army (Department of the Army)	$498,471	0.1%	Rank history: #30 in FY2021, #35 in FY2022, #70 in FY2023 and #74 in FY2024; down 5 since FY2024.
80	Carnegie-Mellon University Top agencies USAF (Department of the Air Force)	$457,056	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	National Academy of Sciences Top agencies EPA (Environmental Protection Agency)	$454,200	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Global Embedded Technologies, Inc. Top agencies Army (Department of the Army)	$449,927	0.1%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #81 in FY2024; down 1 since FY2024.
83	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency)	$437,912	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #93 in FY2024; up 10 since FY2024.
84	Acuity Edge, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$428,051	0.1%	Rank history: #29 in FY2021, #23 in FY2022, #26 in FY2023 and #33 in FY2024; down 51 since FY2024.
85	Edwards Design and Fabrication, Inc. Top agencies Army (Department of the Army)	$395,917	0.1%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; down 61 since FY2024.
86	Geost, LLC Top agencies Navy (Department of the Navy)	$390,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; down 20 since FY2024.
87	Fors Marsh Group LLC Top agencies Army (Department of the Army)	$369,949	<0.1%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; down 14 since FY2024.
88	Institute of Gas Technology Top agencies Navy (Department of the Navy)	$363,939	<0.1%	Rank history: not on the FY2021 list, #14 in FY2022 and not on the FY2023–FY2024 lists; returned.
89	Jacobs Government Services Company Through Jacobs Engineering Group Inc. Top agencies Navy (Department of the Navy)	$341,449	<0.1%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; down 45 since FY2024.
90	EA Engineering Science and Technology Inc. PBC Top agencies EPA (Environmental Protection Agency)	$307,088	<0.1%	Rank history: not on the FY2021 list, #69 in FY2022, #27 in FY2023 and #48 in FY2024; down 42 since FY2024.
91	DCS Corporation Top agencies Army (Department of the Army)	$270,113	<0.1%	Rank history: #14 in FY2021, #16 in FY2022, #29 in FY2023 and #76 in FY2024; down 15 since FY2024.
92	Priority Designs, Inc. Top agencies Army (Department of the Army)	$266,090	<0.1%	Rank history: not on the FY2021 list, #75 in FY2022, not on the FY2023 list and #80 in FY2024; down 12 since FY2024.
93	Drasgow Consulting Group, LLC Top agencies Army (Department of the Army)	$264,143	<0.1%	Rank history: #71 in FY2021, not on the FY2022 list, #97 in FY2023 and not on the FY2024 list; up 16 since FY2024.
94	Baker Engineering and Risk Consultants, Inc. Top agencies Navy (Department of the Navy)	$256,362	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Georgia State University Research Foundation Inc. Top agencies Army (Department of the Army)	$247,897	<0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 1 since FY2024.
96	Hyperion Research Holdings, LLC Top agencies NASA (National Aeronautics and Space Administration)	$240,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	CDM Federal Programs Corporation Top agencies Navy (Department of the Navy)	$186,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Clemson University Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$155,000	<0.1%	Rank history: #98 in FY2021, not on the FY2022–FY2023 lists and #59 in FY2024; down 39 since FY2024.
99	Texas A&M Engineering Experiment Station Top agencies Army (Department of the Army)	$152,360	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Electronic Warfare Associates, Inc. Through EWA Government Systems, Inc. Top agencies Army (Department of the Army)	$150,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

Show 75 more

100 of 131 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 $753 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 AJ13 contractors in FY2025?

1. American Systems Corporation ($81.3M), 2. Assurance Technology Corp ($73M), 3. Columbus Technologies and Services, Inc. ($60.3M), 4. National Security Technology Accelerator Inc. ($56.5M), 5. Modern Technology Solutions, Inc. ($38.3M), 6. Avantus Federal LLC ($34.4M), 7. Leidos Holdings, Inc. ($33.7M), 8. Northrop Grumman Corporation ($32.2M), 9. The Charles Stark Draper Laboratory, Inc. ($27.4M), 10. Microsoft Corporation ($26.4M).

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