Top 65 Contractors in PSC AS12: Transportation R&D Services; Surface Transportation, Public Transit, and Rail; Applied Research, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DOT (Department of Transportation)	$6,500,913	15.8%	Rank history: #1 in FY2022, #2 in FY2023, #1 in FY2024 and #1 in FY2025; new, not ranked in FY2020.
2	Transportation Research Center Inc. Top agencies DOT (Department of Transportation)	$3,859,558	9.4%	Rank history: #3 in FY2022, #1 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
3	University of Washington Top agencies DOT (Department of Transportation)	$1,800,000	4.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
4	RTX Corporation Through Raytheon Company Top agencies DOT (Department of Transportation)	$1,533,541	3.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies DOT (Department of Transportation)	$1,520,241	3.7%	Rank history: not on the FY2022 list, #4 in FY2023, #34 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
6	General Atomic Technologies Corporation Through General Atomics Aeronautical Systems, Inc. Top agencies DOT (Department of Transportation)	$1,497,457	3.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	Atlanta Regional Commission Top agencies DOT (Department of Transportation)	$1,337,185	3.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
8	California Association for Coordinated Transportation Inc. Top agencies DOT (Department of Transportation)	$1,250,000	3.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
9	University of North Dakota Top agencies DOT (Department of Transportation)	$1,089,650	2.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
10	Heart of Iowa Regional Transit Agency Top agencies DOT (Department of Transportation)	$1,084,257	2.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
11	Engineering & Software Consultants, LLC Top agencies DOT (Department of Transportation)	$1,049,817	2.5%	Rank history: #16 in FY2022, #12 in FY2023, #6 in FY2024 and #14 in FY2025; new, not ranked in FY2020.
12	Transtek International Group LLC Top agencies DOT (Department of Transportation)	$999,093	2.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Genex Systems, LLC Top agencies DOT (Department of Transportation)	$997,715	2.4%	Rank history: not on the FY2022 list, #3 in FY2023, #2 in FY2024 and #2 in FY2025; new, not ranked in FY2020.
14	Jentek Sensors, Inc. Top agencies DOT (Department of Transportation)	$985,365	2.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	Battelle Memorial Institute Top agencies DOT (Department of Transportation)	$908,129	2.2%	Rank history: not on the FY2022 list, #24 in FY2023, #29 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
16	Scientific Applications & Research Associates, Inc. Top agencies DOT (Department of Transportation)	$849,958	2.1%	Rank history: not on the FY2022 list, #15 in FY2023 and not on the FY2024–FY2025 lists; down 15 since FY2020.
17	Cambridge Systematics, Inc. Top agencies DOT (Department of Transportation)	$844,751	2.1%	Rank history: #37 in FY2022, #60 in FY2023, #73 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
18	Appareo Systems, LLC Top agencies DOT (Department of Transportation)	$802,599	1.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
19	CDW Corporation Through CDW Government LLC Top agencies DOT (Department of Transportation)	$749,565	1.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	RLS & Associates, Inc. Top agencies DOT (Department of Transportation)	$719,702	1.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	Thales Through Thales Usa, Inc. Top agencies DOT (Department of Transportation)	$623,427	1.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	Diplomat Freight Services, LLC Top agencies USAID (US Agency for International Development)	$608,200	1.5%	Rank history: not on the FY2022 list, #14 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
23	Vox Biomedical LLC Top agencies DOT (Department of Transportation)	$539,328	1.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Precast Systems Engineering, LLC Top agencies DOT (Department of Transportation)	$499,767	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Zeteo Tech, Inc. Top agencies DOT (Department of Transportation)	$499,733	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
26	Wi-Tronix, LLC Top agencies DOT (Department of Transportation)	$489,980	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	The Cadmus Group LLC Top agencies DOT (Department of Transportation)	$464,406	1.1%	Rank history: #23 in FY2022, #18 in FY2023, #26 in FY2024 and #68 in FY2025; new, not ranked in FY2020.
28	Creare LLC Top agencies DOT (Department of Transportation)	$399,868	1.0%	Rank history: not on the FY2022–FY2024 lists and #51 in FY2025; new, not ranked in FY2020.
29	Renaissance Planning Group, Inc. Top agencies DOT (Department of Transportation)	$374,794	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Oregon University System Through Portland State University Top agencies DOT (Department of Transportation)	$369,625	0.9%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
31	The University of Alabama System Through The University of Alabama In Huntsville Top agencies DOT (Department of Transportation)	$324,477	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
32	Oceanit Laboratories Inc. Top agencies DOT (Department of Transportation)	$299,953	0.7%	Rank history: not on the FY2022–FY2023 lists, #33 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
33	Design Interactive, LLC Top agencies DOT (Department of Transportation)	$293,676	0.7%	Rank history: #7 in FY2022, not on the FY2023–FY2024 lists and #8 in FY2025; new, not ranked in FY2020.
34	Clemson University Top agencies Army (Department of the Army)	$285,044	0.7%	Rank history: #28 in FY2022, #28 in FY2023, #71 in FY2024 and #66 in FY2025; new, not ranked in FY2020.
35	University of North Carolina at Chapel Hill Through North Carolina State University Top agencies DOT (Department of Transportation)	$256,279	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Lehigh University Top agencies DOT (Department of Transportation)	$233,173	0.6%	Rank history: not on the FY2022 list, #58 in FY2023, #64 in FY2024 and #70 in FY2025; new, not ranked in FY2020.
37	Purdue University Top agencies DOT (Department of Transportation)	$229,912	0.6%	Rank history: #47 in FY2022, not on the FY2023 list, #67 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
38	Modjeski and Masters, Inc. Top agencies DOT (Department of Transportation)	$224,356	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
39	University of Texas System Through University of Texas At Austin Top agencies DOT (Department of Transportation)	$217,272	0.5%	Rank history: #38 in FY2022, #59 in FY2023, #70 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
40	University of Kansas Through University of Kansas Center for Research Inc. Top agencies DOT (Department of Transportation)	$210,462	0.5%	Rank history: #49 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
41	Board of Governers State University System of Florida Through Florida International University Top agencies DOT (Department of Transportation)	$200,000	0.5%	Rank history: not on the FY2022 list, #54 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
42	Georgia TECH Research Corp Top agencies DOT (Department of Transportation)	$192,473	0.5%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
43	Michigan Technological University Top agencies DOT (Department of Transportation)	$158,054	0.4%	Rank history: #40 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
44	Pulsar Informatics, Inc. Top agencies DOT (Department of Transportation)	$156,445	0.4%	Rank history: #9 in FY2022, not on the FY2023–FY2024 lists and #16 in FY2025; new, not ranked in FY2020.
45	Synetics Systems Engineering Corp. Top agencies DOT (Department of Transportation)	$155,822	0.4%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
46	Newport Sensors Inc. Top agencies DOT (Department of Transportation)	$154,980	0.4%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
47	The University of Texas At San Antonio Top agencies DOT (Department of Transportation)	$154,850	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Marine Fire Systems LLC Top agencies DOT (Department of Transportation)	$150,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	ADA Technologies, LLC Top agencies DOT (Department of Transportation)	$150,000	0.4%	Rank history: #25 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
50	Callentis Consulting Group LLC Top agencies DOT (Department of Transportation)	$149,949	0.4%	Rank history: #10 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
51	Photonwares Corp Through Optowares Inc. Top agencies DOT (Department of Transportation)	$149,837	0.4%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
52	Coherent Technical Services, Inc. Top agencies DOT (Department of Transportation)	$149,714	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	International Electronic Machines Corporation Top agencies DOT (Department of Transportation)	$149,652	0.4%	Rank history: #21 in FY2022, not on the FY2023–FY2024 lists and #59 in FY2025; new, not ranked in FY2020.
54	Interphase Materials, Inc. Top agencies DOT (Department of Transportation)	$148,312	0.4%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
55	Advent Innovations Ltd Co Top agencies DOT (Department of Transportation)	$147,212	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Haas, Inc. Top agencies DOT (Department of Transportation)	$144,763	0.4%	Rank history: #19 in FY2022, not on the FY2023–FY2024 lists and #22 in FY2025; new, not ranked in FY2020.
57	Integrated Solutions for Systems, Inc. Top agencies DOT (Department of Transportation)	$138,927	0.3%	Rank history: #22 in FY2022, not on the FY2023 list, #53 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
58	Preteckt Inc. Top agencies DOT (Department of Transportation)	$119,619	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Vanasse Hangen Brustlin, Inc. Top agencies DOT (Department of Transportation)	$100,000	0.2%	Rank history: #6 in FY2022, #7 in FY2023, #3 in FY2024 and #7 in FY2025; new, not ranked in FY2020.
60	University of Utah Top agencies DOT (Department of Transportation)	$100,000	0.2%	Rank history: #50 in FY2022, #56 in FY2023, not on the FY2024 list and #71 in FY2025; new, not ranked in FY2020.
61	George Washington University (The) Top agencies DOT (Department of Transportation)	$97,442	0.2%	Rank history: not on the FY2022 list, #57 in FY2023, #30 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
62	The Texas A&M University System Through Texas A&M Transportation Institute Top agencies DOT (Department of Transportation)	$92,015	0.2%	Rank history: #5 in FY2022, #22 in FY2023, #56 in FY2024 and not on the FY2025 list; down 58 since FY2020.
63	Northern Arizona University Top agencies DOT (Department of Transportation)	$91,316	0.2%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
64	National Association of Development Organizations Research Foundation, Inc. Top agencies DOT (Department of Transportation)	$90,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Careflite Top agencies DHS (Department of Homeland Security)	$25,000	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 $41.2 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.

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