Top 59 Contractors in PSC AS11: Transportation R&D Services; Surface Transportation, Public Transit, and Rail; Basic Research, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Noblis, Inc. Top agencies DOT (Department of Transportation)	$16,209,955	15.1%	Rank history: #12 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Ensco Inc. Top agencies DOT (Department of Transportation)	$15,744,146	14.7%	Rank history: #30 in FY2021, #31 in FY2022, #2 in FY2024 and #2 in FY2025; up 29 since FY2022.
3	US Ecology, Inc. Through Boom Technology, Inc. Top agencies USAF (Department of the Air Force)	$9,634,000	9.0%	Rank history: not on the FY2021 list, #3 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
4	Virginia Commonwealth University Through Virginia Polytechnic Institute & State University Top agencies DOT (Department of Transportation)	$8,507,185	7.9%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2024 and #13 in FY2025; new.
5	Genex Systems, LLC Top agencies DOT (Department of Transportation)	$7,612,876	7.1%	Rank history: #29 in FY2021, #8 in FY2022, #6 in FY2024 and not on the FY2025 list; up 3 since FY2022.
6	Dynamic Research Inc. Top agencies DOT (Department of Transportation)	$5,130,785	4.8%	Rank history: not on the FY2021 list, #14 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
7	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation)	$4,494,813	4.2%	Rank history: #10 in FY2021, #4 in FY2022, #47 in FY2024 and #15 in FY2025; down 3 since FY2022.
8	Battelle Memorial Institute Top agencies DOT (Department of Transportation)	$4,267,044	4.0%	Rank history: not on the FY2021 list, #6 in FY2022, #5 in FY2024 and #7 in FY2025; down 2 since FY2022.
9	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies DOT (Department of Transportation)	$3,563,861	3.3%	Rank history: #25 in FY2021, #9 in FY2022, #16 in FY2024 and not on the FY2025 list; unchanged since FY2022.
10	Westat, Inc. Top agencies DOT (Department of Transportation)	$2,817,931	2.6%	Rank history: #23 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
11	George Mason University Top agencies DOT (Department of Transportation)	$2,669,500	2.5%	Rank history: #4 in FY2021, #13 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
12	Highway Technology Partners LLC Top agencies DOT (Department of Transportation)	$2,583,412	2.4%	Rank history: not on the FY2021 list, #18 in FY2022, #15 in FY2024 and #23 in FY2025; up 6 since FY2022.
13	Tetra Tech, Inc. Through Tetra TECH ES, Inc. Top agencies USAID (US Agency for International Development)	$2,575,176	2.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
14	National Academy of Sciences Top agencies DOT (Department of Transportation)	$2,300,455	2.1%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2024 and #6 in FY2025; new.
15	Regents of the University of Michigan Top agencies DOT (Department of Transportation)	$1,899,874	1.8%	Rank history: not on the FY2021 list, #7 in FY2022, #22 in FY2024 and #14 in FY2025; down 8 since FY2022.
16	WSP USA Solutions Inc. Top agencies DOT (Department of Transportation)	$1,791,243	1.7%	Rank history: not on the FY2021 list, #15 in FY2022, #71 in FY2024 and not on the FY2025 list; down 1 since FY2022.
17	Iveco SUD-West Nutzfahrzeuge GMBH Through Ati, Inc. Top agencies DOT (Department of Transportation)	$1,744,514	1.6%	Rank history: not on the FY2021 list, #12 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
18	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies DOT (Department of Transportation)	$1,473,334	1.4%	Rank history: not on the FY2021 list, #11 in FY2022, #9 in FY2024 and #4 in FY2025; down 7 since FY2022.
19	Intelligent Transportation Society of America (Its America) Top agencies DOT (Department of Transportation)	$1,087,587	1.0%	Rank history: #9 in FY2021, #19 in FY2022, #36 in FY2024 and #10 in FY2025; unchanged since FY2022.
20	Transportation Research Center Inc. Top agencies DOT (Department of Transportation)	$1,072,643	1.0%	Rank history: #3 in FY2021, #17 in FY2022, #7 in FY2024 and #8 in FY2025; down 3 since FY2022.
21	Exponent Inc. Top agencies DOT (Department of Transportation)	$849,626	0.8%	Rank history: #15 in FY2021, not on the FY2022 list, #10 in FY2024 and not on the FY2025 list; returned.
22	Engineering & Software Consultants, LLC Top agencies DOT (Department of Transportation)	$616,670	0.6%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; new.
23	Toxcel LLC Top agencies DOT (Department of Transportation)	$573,206	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	Washington Metropolitan Area Transit Authority Top agencies USAGM (US Agency for Global Media)	$554,035	0.5%	Rank history: #56 in FY2021, #21 in FY2022, #37 in FY2024 and #21 in FY2025; down 3 since FY2022.
25	The Texas A&M University System Through Texas A&M Transportation Institute Top agencies DOT (Department of Transportation)	$504,299	0.5%	Rank history: not on the FY2021 list, #10 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
26	Thermadynamics Rail LLC Top agencies DOT (Department of Transportation)	$500,000	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	Carnegie-Mellon University Top agencies DOT (Department of Transportation)	$498,476	0.5%	Rank history: #14 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
28	American Short Line & Regional Railroad Association Top agencies DOT (Department of Transportation)	$476,368	0.4%	Rank history: not on the FY2021 list, #30 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
29	University of South Carolina Top agencies DOT (Department of Transportation)	$439,844	0.4%	Rank history: #20 in FY2021, #28 in FY2022, #35 in FY2024 and #26 in FY2025; down 1 since FY2022.
30	AECOM Through AECOM Technical Services, Inc. Top agencies DOT (Department of Transportation)	$417,146	0.4%	Rank history: #50 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
31	Sharma & Associates Inc. Top agencies DOT (Department of Transportation)	$395,706	0.4%	Rank history: #32 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
32	Rutgers, the State University Top agencies DOT (Department of Transportation)	$300,304	0.3%	Rank history: #5 in FY2021, #45 in FY2022, #54 in FY2024 and not on the FY2025 list; up 13 since FY2022.
33	Westinghouse Air Brake Technologies Corp Top agencies DOT (Department of Transportation)	$300,000	0.3%	Rank history: not on the FY2021 list, #22 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
34	Oklahoma State University Top agencies DOT (Department of Transportation)	$269,170	0.3%	Rank history: not on the FY2021 list, #35 in FY2022, #50 in FY2024 and not on the FY2025 list; up 1 since FY2022.
35	Assured Information Security, Inc. Top agencies DOT (Department of Transportation)	$249,995	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
36	Vanasse Hangen Brustlin, Inc. Top agencies DOT (Department of Transportation)	$249,701	0.2%	Rank history: #24 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
37	Louis Berger U.S. Inc. Through WSP USA Inc. Top agencies DOT (Department of Transportation)	$246,000	0.2%	Rank history: #6 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
38	Tier 1 Performance Solutions LLC Top agencies DOT (Department of Transportation)	$214,310	0.2%	Rank history: not on the FY2021 list, #25 in FY2022, #45 in FY2024 and not on the FY2025 list; down 13 since FY2022.
39	United Parcel Service Inc. Top agencies CNCS (Corporation for National and Community Service) EEOC (Equal Employment Opportunity Commission)	$213,851	0.2%	Rank history: #42 in FY2021, #51 in FY2022, #55 in FY2024 and not on the FY2025 list; up 12 since FY2022.
40	University of Texas System Through University of Texas At Austin Top agencies DOT (Department of Transportation)	$200,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	University of Houston System Top agencies DOT (Department of Transportation)	$182,933	0.2%	Rank history: not on the FY2021 list, #33 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
42	D.c.k Travel & Tours Co., Ltd. Top agencies DOS (Department of State)	$166,265	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	The Research Foundation for the State University of New York Top agencies DOT (Department of Transportation)	$152,417	0.1%	Rank history: #35 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
44	University of Massachusetts Top agencies DOT (Department of Transportation)	$149,492	0.1%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
45	X-Biomedical Inc Top agencies DOT (Department of Transportation)	$146,930	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Viajes Buemes S.A. Top agencies DOS (Department of State)	$140,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	University of North Dakota Top agencies DOT (Department of Transportation)	$127,027	0.1%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
48	Regents Tennessee Board of Through Tennessee State University Top agencies DOT (Department of Transportation)	$123,820	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
49	The Cadmus Group LLC Top agencies DOT (Department of Transportation)	$119,943	0.1%	Rank history: #51 in FY2021, #40 in FY2022, #26 in FY2024 and not on the FY2025 list; down 9 since FY2022.
50	Inflight Medical Services International, Inc. Top agencies DOJ (Department of Justice)	$106,588	0.1%	Rank history: #43 in FY2021, #43 in FY2022, #64 in FY2024 and not on the FY2025 list; down 7 since FY2022.
51	Air Planning LLC 2 awardees Top agencies DOJ (Department of Justice)	$93,553	0.1%	Rank history: not on the FY2021 list, #52 in FY2022, #62 in FY2024 and #40 in FY2025; up 1 since FY2022.
52	Fedex Corp Through Federal Express Corporation Top agencies EEOC (Equal Employment Opportunity Commission)	$90,523	0.1%	Rank history: #45 in FY2021, #48 in FY2022, #67 in FY2024 and #38 in FY2025; down 4 since FY2022.
53	Cambridge Information Group Inc. Through Proquest LLC Top agencies DOT (Department of Transportation)	$27,944	<0.1%	Rank history: #44 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
54	Virginia Polytechnic Institute & State University Through VA Department of Transportation Top agencies DOJ (Department of Justice)	$24,000	<0.1%	Rank history: #2 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; down 49 since FY2022.
55	Executive Office of the Through Utah Department of Transportation Top agencies DOT (Department of Transportation)	$24,000	<0.1%	Rank history: #54 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
56	City Link Transportation (Cambodia) Co., Ltd. Top agencies DOS (Department of State)	$22,527	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Oklahoma Turnpike Authority Top agencies USDA (Department of Agriculture)	$7,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2024 and not on the FY2025 list; new.
58	C W Worldwide Meetings Inc. Top agencies DOS (Department of State)	$6,710	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
59	Patriot Freight Group, LLC Top agencies DOJ (Department of Justice)	$6,250	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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 $107 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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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