Top 100 Millennium Challenge Corporation Contractors, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. Through 1901 Group, LLC Top NAICS codes 541519 Other Computer Related Services	$8,764,290	7.3%	Rank history: not on the FY2021 list, #4 in FY2022, #3 in FY2023 and #1 in FY2025; up 2 since FY2023.
2	TCG Inc. Top NAICS codes 541512 Computer Systems Design Services	$8,615,152	7.2%	Rank history: #4 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	DT Global LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$8,587,825	7.2%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and #11 in FY2025; up 13 since FY2023.
4	Macdonald Mott Inc Through Mott Macdonald, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$6,368,630	5.3%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and #10 in FY2025; up 8 since FY2023.
5	Tetra Tech, Inc. 4 awardees, including Tetra TECH ES, Inc., Management Systems International, Inc. and Ard, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541690 Other Scientific and Technical Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$5,431,440	4.5%	Rank history: #8 in FY2021, #1 in FY2022, #8 in FY2023 and not on the FY2025 list; up 3 since FY2023.
6	Mathematica Inc. Top NAICS codes 541690 Other Scientific and Technical Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$4,877,935	4.1%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2025; new.
7	Mindseeker Inc. 2 awardees Top NAICS codes 541519 Other Computer Related Services	$4,863,788	4.1%	Rank history: #27 in FY2021, #14 in FY2022, #14 in FY2023 and #3 in FY2025; up 7 since FY2023.
8	Nathan Associates LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$4,527,719	3.8%	Rank history: #9 in FY2021, #9 in FY2022, #7 in FY2023 and #20 in FY2025; down 1 since FY2023.
9	WSP Canada Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$4,449,502	3.7%	Rank history: not on the FY2021 list, #31 in FY2022, not on the FY2023 list and #16 in FY2025; returned.
10	Dynamic-Pro Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$4,272,672	3.6%	Rank history: #6 in FY2021, #5 in FY2022, #5 in FY2023 and #6 in FY2025; down 5 since FY2023.
11	Iron Vine Security LLC Top NAICS codes 541519 Other Computer Related Services	$3,409,535	2.9%	Rank history: #10 in FY2021, #7 in FY2022, not on the FY2023 list and #5 in FY2025; returned.
12	Erm-Na Holdings Corp. Through Environmental Resources Management Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$2,010,178	1.7%	Rank history: #30 in FY2021, #12 in FY2022, #19 in FY2023 and not on the FY2025 list; up 7 since FY2023.
13	Planet Partnerships LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,835,606	1.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
14	Stantec Inc. 2 awardees, including Stantec Consulting Services Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541690 Other Scientific and Technical Consulting Services	$1,786,804	1.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
15	Dalberg Consulting-U.S. LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,751,506	1.5%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and not on the FY2025 list; down 4 since FY2023.
16	Limestone Analytics LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services	$1,589,103	1.3%	Rank history: #47 in FY2021, #30 in FY2022, #15 in FY2023 and #21 in FY2025; down 1 since FY2023.
17	Social Impact Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$1,580,033	1.3%	Rank history: #12 in FY2021, #43 in FY2022, #62 in FY2023 and #7 in FY2025; up 45 since FY2023.
18	On Assignment, Inc. Through Iron Vine Security LLC Top NAICS codes 541519 Other Computer Related Services	$1,423,292	1.2%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and not on the FY2025 list; down 12 since FY2023.
19	Hazen and Sawyer, D.p.c. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,290,567	1.1%	Rank history: #25 in FY2021, #23 in FY2022, #25 in FY2023 and not on the FY2025 list; up 6 since FY2023.
20	Louis Berger U.S. Inc. Through WSP Canada Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$1,060,800	0.9%	Rank history: #38 in FY2021, #15 in FY2022, #41 in FY2023 and not on the FY2025 list; up 21 since FY2023.
21	Integration Technologies Group, Inc. Top NAICS codes 541519 Other Computer Related Services	$1,024,826	0.9%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
22	Nexcell Systems Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$1,011,084	0.8%	Rank history: #42 in FY2021, #47 in FY2022, #91 in FY2023 and not on the FY2025 list; up 69 since FY2023.
23	Devaid Limited Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$992,121	0.8%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023 and not on the FY2025 list; unchanged since FY2023.
24	Thirdway Africa Partners LLP Through Thirdway Impact Advisors Ltd Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$945,442	0.8%	Rank history: not on the FY2021 list, #27 in FY2022, #28 in FY2023 and #12 in FY2025; up 4 since FY2023.
25	Deloitte Through Deloitte Consulting LLP Top NAICS codes 611430 Professional and Management Development Training 541990 All Other Professional, Scientific, and Technical Services	$898,427	0.8%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2025; new.
26	Guidehouse Inc. 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 519190 All Other Information Services	$858,581	0.7%	Rank history: #24 in FY2021, #29 in FY2022, #27 in FY2023 and #22 in FY2025; up 1 since FY2023.
27	Family Health International Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$850,000	0.7%	Rank history: #26 in FY2021, #33 in FY2022, #29 in FY2023 and not on the FY2025 list; up 2 since FY2023.
28	Birches Group, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$763,001	0.6%	Rank history: not on the FY2021 list, #40 in FY2022, #38 in FY2023 and not on the FY2025 list; up 10 since FY2023.
29	Tetra TECH ES, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$756,676	0.6%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
30	A2F Consulting LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$748,716	0.6%	Rank history: #31 in FY2021, #32 in FY2022, #26 in FY2023 and not on the FY2025 list; down 4 since FY2023.
31	Semanticbits LLC Through ICF Incorporated, L.L.C. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$740,169	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
32	ICF International, Inc. Through ICF Incorporated, L.L.C. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$728,312	0.6%	Rank history: #22 in FY2021, #34 in FY2022, #35 in FY2023 and not on the FY2025 list; up 3 since FY2023.
33	Crossboundary LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$688,285	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
34	Cbre Inc. 2 awardees Top NAICS codes 561210 Facilities Support Services	$670,354	0.6%	Rank history: #37 in FY2021, #53 in FY2022, #47 in FY2023 and #17 in FY2025; up 13 since FY2023.
35	Environmental Resources Management Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$650,286	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
36	Castro & Company, LLC Top NAICS codes 541219 Other Accounting Services	$646,462	0.5%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2025; new.
37	Insight Public Sector, Inc. Top NAICS codes 511210 Software Publishers	$633,201	0.5%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
38	Washington Business Dynamics, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$594,779	0.5%	Rank history: #36 in FY2021, #39 in FY2022, #37 in FY2023 and not on the FY2025 list; down 1 since FY2023.
39	Hunton Andrews Kurth LLP Top NAICS codes 541110 Offices of Lawyers	$546,861	0.5%	Rank history: #40 in FY2021, #52 in FY2022, #44 in FY2023 and #18 in FY2025; up 5 since FY2023.
40	Instiglio, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$523,928	0.4%	Rank history: #49 in FY2021, #44 in FY2022, #39 in FY2023 and not on the FY2025 list; down 1 since FY2023.
41	Agenda, LLC Top NAICS codes 541820 Public Relations Agencies	$500,000	0.4%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023 and not on the FY2025 list; up 25 since FY2023.
42	Integra Government Services International LLC Top NAICS codes 541690 Other Scientific and Technical Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$495,386	0.4%	Rank history: not on the FY2021 list, #38 in FY2022, #17 in FY2023 and #28 in FY2025; down 25 since FY2023.
43	Minh H. Chau Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$490,886	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
44	PT Agrotek Lestari Internasional Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$483,870	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
45	SB Conseil Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$454,971	0.4%	Rank history: not on the FY2021 list, #55 in FY2022, #43 in FY2023 and #61 in FY2025; down 2 since FY2023.
46	Definitive Logic Corporation Top NAICS codes 541519 Other Computer Related Services	$449,378	0.4%	Rank history: #54 in FY2021, #67 in FY2022, #56 in FY2023 and not on the FY2025 list; up 10 since FY2023.
47	Cenibark International, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$420,075	0.4%	Rank history: not on the FY2021 list, #51 in FY2022, #46 in FY2023 and not on the FY2025 list; down 1 since FY2023.
48	PM Consulting Group LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$400,000	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	E.f. Kearney, Limited Through Kearney & Company, P.C. Top NAICS codes 541211 Offices of Certified Public Accountants	$386,849	0.3%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
50	University Research Co., LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$382,016	0.3%	Rank history: #35 in FY2021, #17 in FY2022, #64 in FY2023 and not on the FY2025 list; up 14 since FY2023.
51	XL Associates, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$370,461	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
52	Environnemental Network Consulting Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$363,426	0.3%	Rank history: #96 in FY2021, not on the FY2022 list, #99 in FY2023 and not on the FY2025 list; up 47 since FY2023.
53	Montage Marketing Group, LLC Top NAICS codes 541613 Marketing Consulting Services	$350,226	0.3%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #83 in FY2025; up 14 since FY2023.
54	International Road Assessment Programme Limited Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$350,000	0.3%	Rank history: not on the FY2021 list, #37 in FY2022, #31 in FY2023 and not on the FY2025 list; down 23 since FY2023.
55	Nomad Socio-Economic Management and Consulting (Pty) Ltd Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$346,347	0.3%	Rank history: not on the FY2021 list, #61 in FY2022, #51 in FY2023 and not on the FY2025 list; down 4 since FY2023.
56	Kima Environmental LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$326,824	0.3%	Rank history: not on the FY2021 list, #58 in FY2022, #54 in FY2023 and not on the FY2025 list; down 2 since FY2023.
57	Ch2M Hill, Inc. Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$311,983	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Connexus Corp 2 awardees Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$311,133	0.3%	Rank history: not on the FY2021 list, #50 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
59	Barthel Kevin Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$311,096	0.3%	Rank history: #100 in FY2021, not on the FY2022 list, #81 in FY2023 and #53 in FY2025; up 22 since FY2023.
60	Alain Labeau Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$293,781	0.2%	Rank history: #51 in FY2021, #65 in FY2022, #59 in FY2023 and not on the FY2025 list; down 1 since FY2023.
61	National Institute of Building Sciences Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$292,183	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
62	Regents of the University of Michigan Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$291,666	0.2%	Rank history: #44 in FY2021, #91 in FY2022, #95 in FY2023 and #49 in FY2025; up 33 since FY2023.
63	Hok, Inc. Top NAICS codes 541310 Architectural Services	$278,197	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	Blaser Mitchell L Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$271,614	0.2%	Rank history: #57 in FY2021, #71 in FY2022, #69 in FY2023 and #48 in FY2025; up 5 since FY2023.
65	Penn Parking Inc. Top NAICS codes 812930 Parking Lots and Garages	$265,646	0.2%	Rank history: #56 in FY2021, #59 in FY2022, #53 in FY2023 and #27 in FY2025; down 12 since FY2023.
66	Linda Carolyn Easley Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$264,639	0.2%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; up 39 since FY2023.
67	Dobrilovic Stevan D Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$263,941	0.2%	Rank history: #78 in FY2021, #72 in FY2022, #71 in FY2023 and not on the FY2025 list; up 4 since FY2023.
68	Maria Beatriz Orlando Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$255,945	0.2%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and not on the FY2025 list; up 4 since FY2023.
69	Williams Margaret D Top NAICS codes 541110 Offices of Lawyers	$251,452	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and #29 in FY2025; up 7 since FY2023.
70	Metis Markets LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$250,375	0.2%	Rank history: #64 in FY2021, #73 in FY2022, #73 in FY2023 and #30 in FY2025; up 3 since FY2023.
71	Kevin Ross Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$235,008	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and #31 in FY2025; up 14 since FY2023.
72	Ellen K. Moran Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$233,168	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	Ihealth Innovative Solution LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$229,717	0.2%	Rank history: #60 in FY2021, #76 in FY2022, #75 in FY2023 and #32 in FY2025; up 2 since FY2023.
74	Benjamin Linkow Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$227,114	0.2%	Rank history: not on the FY2021 list, #78 in FY2022, not on the FY2023 list and #33 in FY2025; returned.
75	Anne Pizer Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$224,553	0.2%	Rank history: #87 in FY2021, #82 in FY2022, #79 in FY2023 and not on the FY2025 list; up 4 since FY2023.
76	AMY E Sunseri Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$223,191	0.2%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #34 in FY2025; up 2 since FY2023.
77	Elbow Kent Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$222,496	0.2%	Rank history: #74 in FY2021, #83 in FY2022, #82 in FY2023 and #54 in FY2025; up 5 since FY2023.
78	Designovation Strategies LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$219,040	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 34 since FY2023.
79	John Wesley Burden Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$218,747	0.2%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and #35 in FY2025; up 4 since FY2023.
80	Man-Machine Systems Assessment (Msa), Incorporated Top NAICS codes 541330 Engineering Services	$218,352	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Alison M. Montgomery LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$217,934	0.2%	Rank history: #73 in FY2021, #84 in FY2022, #88 in FY2023 and #36 in FY2025; up 7 since FY2023.
82	Social Project Institute, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$212,165	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Kenneth M. Rhodes Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$211,328	0.2%	Rank history: not on the FY2021 list, #88 in FY2022, #90 in FY2023 and #64 in FY2025; up 7 since FY2023.
84	Cpcs Transcom Limited Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$210,657	0.2%	Rank history: #48 in FY2021, not on the FY2022 list, #58 in FY2023 and not on the FY2025 list; down 26 since FY2023.
85	North End Consulting LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$210,655	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #92 in FY2023 and #38 in FY2025; up 7 since FY2023.
86	Jones Jason D Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$208,138	0.2%	Rank history: #97 in FY2021, not on the FY2022 list, #63 in FY2023 and #37 in FY2025; down 23 since FY2023.
87	Changeable, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$206,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and #59 in FY2025; unchanged since FY2023.
88	Egis International Top NAICS codes 541330 Engineering Services	$204,533	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
89	Goldsmith Rebecca Hales Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$203,944	0.2%	Rank history: #82 in FY2021, #94 in FY2022, #98 in FY2023 and not on the FY2025 list; up 9 since FY2023.
90	Meyer Jeanmarie Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$200,000	0.2%	Rank history: #55 in FY2021, not on the FY2022 list, #70 in FY2023 and not on the FY2025 list; down 20 since FY2023.
91	DMV Solutions, L.L.C. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$198,411	0.2%	Rank history: #75 in FY2021, #87 in FY2022, #97 in FY2023 and #70 in FY2025; up 6 since FY2023.
92	Kelly, Jaime Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$197,060	0.2%	Rank history: #85 in FY2021, #96 in FY2022, #100 in FY2023 and not on the FY2025 list; up 8 since FY2023.
93	Szott Aaron Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$192,591	0.2%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list and #41 in FY2025; up 9 since FY2023.
94	Epstein Jessica Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$190,072	0.2%	Rank history: #93 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 7 since FY2023.
95	Austin Dempewolff Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$185,289	0.2%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #42 in FY2025; down 43 since FY2023.
96	Hawa Berete Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$184,960	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Goose Creek Consulting L.l.c Top NAICS codes 611430 Professional and Management Development Training	$174,850	0.1%	Rank history: #71 in FY2021, #60 in FY2022, #45 in FY2023 and not on the FY2025 list; down 52 since FY2023.
98	KH and Associates Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$174,425	0.1%	Rank history: not on the FY2021 list, #85 in FY2022, not on the FY2023 list and not on the FY2025 list; up 5 since FY2023.
99	Simbarashe Mangwengwende Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$174,160	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 10 since FY2023.
100	Vaughn Katherine Laura Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$164,572	0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and not on the FY2025 list; down 43 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 $120 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 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.

Quick answers