Top 100 US Agency for International Development Contractors, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Chemonics International, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$1,510,318,180	19.3%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	DAI Global LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$501,069,528	6.4%	Rank history: #3 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	Tetra Tech, Inc. 8 awardees, including Ard, Inc., Tetra TECH ES, Inc. and Management Systems International, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$444,201,324	5.7%	Rank history: #4 in FY2021, #4 in FY2022, #3 in FY2023 and #7 in FY2025; unchanged since FY2023.
4	Credence Management Solutions Limited Liability Company Top NAICS codes 541330 Engineering Services	$347,655,765	4.5%	Rank history: #32 in FY2021, #12 in FY2022, #5 in FY2023 and #6 in FY2025; up 1 since FY2023.
5	ABT Global LLC 3 awardees Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services 541690 Other Scientific and Technical Consulting Services	$265,127,231	3.4%	Rank history: #2 in FY2021, #3 in FY2022, #4 in FY2023 and #4 in FY2025; down 1 since FY2023.
6	Research Triangle Institute Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services 541330 Engineering Services	$152,169,343	1.9%	Rank history: #5 in FY2021, #7 in FY2022, #6 in FY2023 and #8 in FY2025; unchanged since FY2023.
7	Deloitte 2 awardees, including Deloitte Consulting LLP Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541618 Other Management Consulting Services 541612 Human Resources Consulting Services	$100,773,744	1.3%	Rank history: #8 in FY2021, #10 in FY2022, #9 in FY2023 and #9 in FY2025; up 2 since FY2023.
8	Palladium International LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services 541611 Administrative Management and General Management Consulting Services	$90,337,616	1.2%	Rank history: #6 in FY2021, #6 in FY2022, #7 in FY2023 and #12 in FY2025; down 1 since FY2023.
9	Edesia, Inc. Top NAICS codes 311340 Nonchocolate Confectionery Manufacturing	$81,327,962	1.0%	Rank history: not on the FY2021 list, #19 in FY2022, #30 in FY2023 and #16 in FY2025; up 21 since FY2023.
10	Encompass LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services 561990 All Other Support Services	$81,166,330	1.0%	Rank history: #24 in FY2021, #18 in FY2022, #14 in FY2023 and #49 in FY2025; up 4 since FY2023.
11	Mana Nutritive Aid Products Incorporated Top NAICS codes 311340 Nonchocolate Confectionery Manufacturing	$78,351,489	1.0%	Rank history: not on the FY2021 list, #22 in FY2022, #22 in FY2023 and #23 in FY2025; up 11 since FY2023.
12	NTT Data Federal Services Inc. Top NAICS codes 541511 Custom Computer Programming Services	$74,952,713	1.0%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2025; new.
13	Creative Associates International, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$73,998,162	0.9%	Rank history: #12 in FY2021, #9 in FY2022, #8 in FY2023 and #39 in FY2025; down 5 since FY2023.
14	Remote Medicine Inc. Top NAICS codes 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers	$71,251,787	0.9%	Rank history: #25 in FY2021, #11 in FY2022, #65 in FY2023 and #17 in FY2025; up 51 since FY2023.
15	DT Global LLC 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$68,319,782	0.9%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and #11 in FY2025; down 4 since FY2023.
16	Dexis Interactive Incorporated 2 awardees Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services 541618 Other Management Consulting Services	$58,368,266	0.7%	Rank history: #13 in FY2021, #25 in FY2022, #18 in FY2023 and #25 in FY2025; up 2 since FY2023.
17	The Cadmus Group LLC Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services 541620 Environmental Consulting Services	$58,037,731	0.7%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023 and #30 in FY2025; up 4 since FY2023.
18	Education Development Center, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services 541720 Research and Development in the Social Sciences and Humanities	$57,534,465	0.7%	Rank history: #14 in FY2021, #16 in FY2022, #23 in FY2023 and not on the FY2025 list; up 5 since FY2023.
19	Devtech Systems Inc. Top NAICS codes 541519 Other Computer Related Services 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$51,197,501	0.7%	Rank history: #29 in FY2021, #34 in FY2022, #37 in FY2023 and #71 in FY2025; up 18 since FY2023.
20	Medical Access Uganda Limited Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$47,376,390	0.6%	Rank history: not on the FY2021 list, #31 in FY2022, #64 in FY2023 and #28 in FY2025; up 44 since FY2023.
21	Tetra TECH ES, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services 541330 Engineering Services	$47,344,624	0.6%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
22	Winrock International Institute for Agricultural Development Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services	$46,543,493	0.6%	Rank history: #42 in FY2021, #48 in FY2022, #35 in FY2023 and not on the FY2025 list; up 13 since FY2023.
23	Jefferson Consulting Group LLC Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$44,824,151	0.6%	Rank history: #30 in FY2021, #41 in FY2022, #34 in FY2023 and #27 in FY2025; up 11 since FY2023.
24	Management Sciences for Health Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$44,783,053	0.6%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #40 in FY2025; up 12 since FY2023.
25	Zemitek LLC 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541511 Custom Computer Programming Services 611430 Professional and Management Development Training	$37,326,880	0.5%	Rank history: #37 in FY2021, #32 in FY2022, #49 in FY2023 and #31 in FY2025; up 24 since FY2023.
26	Deloitte Consulting Limited Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$36,537,743	0.5%	Rank history: #100 in FY2021, #17 in FY2022, #15 in FY2023 and #35 in FY2025; down 11 since FY2023.
27	Elizabeth Glaser Pediatric Aids Foundation Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$36,529,091	0.5%	Rank history: not on the FY2021 list, #43 in FY2022, #25 in FY2023 and #64 in FY2025; down 2 since FY2023.
28	Joint Medical Store Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$36,417,703	0.5%	Rank history: #79 in FY2021, #57 in FY2022, #33 in FY2023 and #69 in FY2025; up 5 since FY2023.
29	AECOM Technical Services, Inc. Top NAICS codes 541310 Architectural Services 541330 Engineering Services	$34,500,000	0.4%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2025; new.
30	Family Health International Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services 621511 Medical Laboratories	$34,462,510	0.4%	Rank history: #23 in FY2021, #79 in FY2022, #45 in FY2023 and #3 in FY2025; up 15 since FY2023.
31	Socha, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$31,953,850	0.4%	Rank history: #64 in FY2021, #42 in FY2022, #67 in FY2023 and #65 in FY2025; up 36 since FY2023.
32	Pact, Inc. Top NAICS codes 621498 All Other Outpatient Care Centers 923130 Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs)	$31,806,635	0.4%	Rank history: #82 in FY2021, #62 in FY2022, #17 in FY2023 and #42 in FY2025; down 15 since FY2023.
33	Blumont Engineering Solutions Inc. Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$31,755,180	0.4%	Rank history: #63 in FY2021, not on the FY2022–FY2023 lists and #37 in FY2025; returned.
34	Alliance for Energy Innovation, LLC Top NAICS codes 541711 Research and Development in Biotechnology	$30,729,932	0.4%	Rank history: #50 in FY2021, #54 in FY2022, #43 in FY2023 and not on the FY2025 list; up 9 since FY2023.
35	International Business Machines Corporation 2 awardees Top NAICS codes 541511 Custom Computer Programming Services	$29,749,779	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
36	PM Consulting Group LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$28,409,052	0.4%	Rank history: #18 in FY2021, #24 in FY2022, #24 in FY2023 and #84 in FY2025; down 12 since FY2023.
37	International Business Initiatives LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$27,838,991	0.4%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #36 in FY2025; up 9 since FY2023.
38	Path Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$27,430,806	0.4%	Rank history: #58 in FY2021, not on the FY2022–FY2023 lists and #5 in FY2025; up 118 since FY2023.
39	Panagora Group Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$26,599,597	0.3%	Rank history: #33 in FY2021, #35 in FY2022, #44 in FY2023 and #75 in FY2025; up 5 since FY2023.
40	Salient Federal-Sgis Inc Top NAICS codes 541519 Other Computer Related Services	$26,084,164	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 71 since FY2023.
41	Right To Care Zambia Limited Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$24,877,362	0.3%	Rank history: not on the FY2021 list, #40 in FY2022, #40 in FY2023 and #48 in FY2025; down 1 since FY2023.
42	Social Impact Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$23,979,515	0.3%	Rank history: #57 in FY2021, #75 in FY2022, #66 in FY2023 and not on the FY2025 list; up 24 since FY2023.
43	It Concepts, Inc. Top NAICS codes 541612 Human Resources Consulting Services	$23,885,850	0.3%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
44	Africa Global Logistics Mocambique, S.A Top NAICS codes 488999 All Other Support Activities for Transportation 541990 All Other Professional, Scientific, and Technical Services	$23,159,833	0.3%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; new.
45	Cnfa Top NAICS codes 541618 Other Management Consulting Services 541611 Administrative Management and General Management Consulting Services 541690 Other Scientific and Technical Consulting Services	$22,037,689	0.3%	Rank history: #39 in FY2021, #72 in FY2022, #74 in FY2023 and #45 in FY2025; up 29 since FY2023.
46	Environmental Incentives, Inc. Top NAICS codes 541620 Environmental Consulting Services 541611 Administrative Management and General Management Consulting Services	$21,801,054	0.3%	Rank history: #22 in FY2021, #28 in FY2022, #38 in FY2023 and #58 in FY2025; down 8 since FY2023.
47	Global Solutions Ventures, LLC Top NAICS codes 541330 Engineering Services	$21,567,788	0.3%	Rank history: #86 in FY2021, #37 in FY2022, #13 in FY2023 and #14 in FY2025; down 34 since FY2023.
48	International Development Group Advisory Services, LLC Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$20,546,812	0.3%	Rank history: #45 in FY2021, #39 in FY2022, #20 in FY2023 and #55 in FY2025; down 28 since FY2023.
49	Jhpiego Corp Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$19,987,965	0.3%	Rank history: #59 in FY2021, #30 in FY2022, #27 in FY2023 and #19 in FY2025; down 22 since FY2023.
50	Ecodit LLC Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services 924110 Administration of Air and Water Resource and Solid Waste Management Programs	$19,893,898	0.3%	Rank history: #55 in FY2021, #94 in FY2022, #51 in FY2023 and #24 in FY2025; up 1 since FY2023.
51	Semanticbits LLC Through ICF Incorporated, L.L.C. Top NAICS codes 541330 Engineering Services 541219 Other Accounting Services	$19,652,507	0.3%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
52	Tetra TECH DRG JV, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$19,235,631	0.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2025 list; down 5 since FY2023.
53	Dexis Professional Services, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$18,900,339	0.2%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; new.
54	Camp Dresser & Mckee Inc. Through CDM International Inc. Top NAICS codes 541310 Architectural Services 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$18,050,829	0.2%	Rank history: #28 in FY2021, #46 in FY2022, #59 in FY2023 and not on the FY2025 list; up 5 since FY2023.
55	Bixal Solutions Incorporated Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 611430 Professional and Management Development Training 541330 Engineering Services	$16,351,700	0.2%	Rank history: #75 in FY2021, #67 in FY2022, #70 in FY2023 and #54 in FY2025; up 15 since FY2023.
56	ABT Global Solutions LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$16,207,352	0.2%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #51 in FY2025; up 13 since FY2023.
57	Emirate Builders Co. Limited Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$16,099,213	0.2%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
58	Financial Markets International, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services	$15,942,032	0.2%	Rank history: #48 in FY2021, not on the FY2022 list, #72 in FY2023 and not on the FY2025 list; up 14 since FY2023.
59	Integrity Global Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541618 Other Management Consulting Services	$15,398,924	0.2%	Rank history: #74 in FY2021, #49 in FY2022, #48 in FY2023 and #72 in FY2025; down 11 since FY2023.
60	Acdi / Voca Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$15,307,119	0.2%	Rank history: #95 in FY2021, #20 in FY2022, #57 in FY2023 and #26 in FY2025; down 3 since FY2023.
61	Intrahealth International, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services 812990 All Other Personal Services	$15,207,251	0.2%	Rank history: #62 in FY2021, #45 in FY2022, not on the FY2023 list and #89 in FY2025; up 41 since FY2023.
62	Nippon Telegraph and Telephone Corporation Through NTT Data Federal Services, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$15,066,453	0.2%	Rank history: #10 in FY2021, #8 in FY2022, #10 in FY2023 and not on the FY2025 list; down 52 since FY2023.
63	Rwanda Medical Supply (Rms) Ltd Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$14,947,807	0.2%	Rank history: #68 in FY2021, #71 in FY2022, #68 in FY2023 and #29 in FY2025; up 5 since FY2023.
64	Usmax Corporation Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services 561621 Security Systems Services (except Locksmiths)	$14,534,907	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #61 in FY2023 and #93 in FY2025; down 3 since FY2023.
65	At&T Inc. 2 awardees, including At&T Enterprises, LLC and Att Mobility LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite) 541519 Other Computer Related Services	$14,270,548	0.2%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2025; up 155 since FY2023.
66	The Pragma Corporation Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$13,830,420	0.2%	Rank history: #31 in FY2021, #47 in FY2022, #77 in FY2023 and #73 in FY2025; up 11 since FY2023.
67	Maersk Line, Limited Top NAICS codes 483111 Deep Sea Freight Transportation	$13,686,743	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	Eagle One Solutions Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services 541519 Other Computer Related Services	$13,483,292	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and #34 in FY2025; up 17 since FY2023.
69	Improving Economies for Stronger Communities Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$12,933,887	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, not on the FY2023 list and #87 in FY2025; up 53 since FY2023.
70	Ssg-Advisors LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$12,867,335	0.2%	Rank history: #36 in FY2021, #63 in FY2022, #99 in FY2023 and not on the FY2025 list; up 29 since FY2023.
71	Nathan Associates LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services	$12,865,111	0.2%	Rank history: #16 in FY2021, #26 in FY2022, #19 in FY2023 and #41 in FY2025; down 52 since FY2023.
72	Celeen LLC Top NAICS codes 541330 Engineering Services	$12,616,092	0.2%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2023 and #60 in FY2025; down 9 since FY2023.
73	Saliense Consulting LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$12,494,222	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 48 since FY2023.
74	Spatial Front Inc Top NAICS codes 541512 Computer Systems Design Services	$12,474,491	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 208 since FY2023.
75	Democracy International, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$12,215,000	0.2%	Rank history: not on the FY2021 list, #77 in FY2022, #97 in FY2023 and not on the FY2025 list; up 22 since FY2023.
76	Cloudshape LLC Top NAICS codes 541519 Other Computer Related Services	$12,161,044	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and #20 in FY2025; unchanged since FY2023.
77	Numark Associates, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$11,757,261	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #84 in FY2023 and not on the FY2025 list; up 7 since FY2023.
78	Countertrade Products, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers 561990 All Other Support Services	$11,739,847	0.2%	Rank history: #76 in FY2021, #52 in FY2022, not on the FY2023 list and not on the FY2025 list; up 23 since FY2023.
79	Chugach Technical Solutions LLC Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$11,700,876	0.1%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
80	Liberty Glory Corporation Top NAICS codes 483111 Deep Sea Freight Transportation	$11,500,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	John Snow, Incorporated Top NAICS codes 541690 Other Scientific and Technical Consulting Services 928120 International Affairs	$10,943,676	0.1%	Rank history: #19 in FY2021, #21 in FY2022, #41 in FY2023 and not on the FY2025 list; down 40 since FY2023.
82	MTC International Development Holding Company, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$10,699,622	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
83	Blumont Global Development, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$10,624,734	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; up 149 since FY2023.
84	Banyan Global Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$10,484,186	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and #96 in FY2025; up 3 since FY2023.
85	The Johns Hopkins University 2 awardees Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$10,047,182	0.1%	Rank history: #92 in FY2021, #82 in FY2022, #92 in FY2023 and not on the FY2025 list; up 7 since FY2023.
86	Arab Brothers Company Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$10,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and not on the FY2025 list; down 5 since FY2023.
87	The Whiting-Turner Contracting Company Top NAICS codes 236220 Commercial and Institutional Building Construction	$9,819,091	0.1%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and not on the FY2025 list; down 56 since FY2023.
88	Steampunk, Inc. Top NAICS codes 541512 Computer Systems Design Services	$9,653,433	0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
89	Highlight Technologies Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services	$9,635,618	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	University Research Co., LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$9,557,182	0.1%	Rank history: #35 in FY2021, #68 in FY2022, #80 in FY2023 and not on the FY2025 list; down 10 since FY2023.
91	International Research and Exchanges Board Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$9,502,379	0.1%	Rank history: not on the FY2021 list, #81 in FY2022, not on the FY2023 list and not on the FY2025 list; up 55 since FY2023.
92	Mission for Essential Drugs and Supplies Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$9,380,672	0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and #44 in FY2025; down 10 since FY2023.
93	WSP USA Solutions Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$9,212,317	0.1%	Rank history: #89 in FY2021, not on the FY2022 list, #100 in FY2023 and not on the FY2025 list; up 7 since FY2023.
94	Cardno Emerging Markets USA Ltd. Through DT Global International Development Usa, Ltd. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$9,076,802	0.1%	Rank history: #46 in FY2021, #56 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
95	The QED Group LLC Top NAICS codes 541618 Other Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$8,955,243	0.1%	Rank history: #44 in FY2021, #65 in FY2022, not on the FY2023 list and not on the FY2025 list; up 50 since FY2023.
96	Linc LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$8,918,260	0.1%	Rank history: not on the FY2021 list, #64 in FY2022, not on the FY2023 list and #46 in FY2025; up 13 since FY2023.
97	Millennium Partners Consulting LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541519 Other Computer Related Services	$8,917,722	0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and not on the FY2025 list; up 1 since FY2023.
98	Amentum Holdings, Inc. Through Amentum Services, Inc. Top NAICS codes 541330 Engineering Services	$8,761,521	0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; new.
99	Sealift Holdings Inc. Top NAICS codes 483111 Deep Sea Freight Transportation	$8,679,968	0.1%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
100	Global Communities, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$8,370,000	0.1%	Rank history: #72 in FY2021, #83 in FY2022, #90 in FY2023 and #43 in FY2025; down 10 since FY2023.

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 $7.81 billion 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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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