Top 100 International Boundary and Water Commission U.S.-Mexico Contractors, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Veolia Water West Operating Services Inc. Top NAICS codes 221320 Sewage Treatment Facilities	$35,091,067	26.3%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; up 2 since FY2024.
2	PCL Construction Inc Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$17,610,323	13.2%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; unchanged since FY2024.
3	Sunstate Environmental Services Inc. Top NAICS codes 221320 Sewage Treatment Facilities	$17,520,666	13.1%	Rank history: not on the FY2021–FY2024 lists; new.
4	Peter Kiewit Sons', Inc. Through Kiewit Infrastructure South Co Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$16,597,186	12.5%	Rank history: not on the FY2021–FY2024 lists; new.
5	SAN Diego Gas & Electric Company Top NAICS codes 221122 Electric Power Distribution	$5,833,728	4.4%	Rank history: #3 in FY2021, #6 in FY2022, #4 in FY2023 and #4 in FY2024; down 1 since FY2024.
6	Stantec Inc. Through Stantec Consulting Services Inc. Top NAICS codes 541330 Engineering Services	$5,776,572	4.3%	Rank history: not on the FY2021–FY2024 lists; new.
7	Texas Electrical & Testing Services LLC Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 333611 Turbine and Turbine Generator Set Units Manufacturing 541330 Engineering Services	$4,318,653	3.2%	Rank history: #16 in FY2021, #23 in FY2022, #20 in FY2023 and #16 in FY2024; up 9 since FY2024.
8	American Material Handling, Inc. Top NAICS codes 333120 Construction Machinery Manufacturing	$3,680,449	2.8%	Rank history: #21 in FY2021, #10 in FY2022, #10 in FY2023 and #6 in FY2024; down 2 since FY2024.
9	UNS Energy Corporation Through Uns Electric, Inc. Top NAICS codes 221122 Electric Power Distribution	$1,602,820	1.2%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; up 8 since FY2024.
10	CGI Federal Inc. Top NAICS codes 541519 Other Computer Related Services	$1,587,886	1.2%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; unchanged since FY2024.
11	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)	$1,515,518	1.1%	Rank history: #6 in FY2021, #19 in FY2022, #6 in FY2023 and #7 in FY2024; down 4 since FY2024.
12	Arcadis U.s., Inc. Top NAICS codes 541330 Engineering Services	$1,290,099	1.0%	Rank history: not on the FY2021 list, #26 in FY2022, not on the FY2023 list and #1 in FY2024; down 11 since FY2024.
13	Tatonka Trucking Llc. Top NAICS codes 562219 Other Nonhazardous Waste Treatment and Disposal 221310 Water Supply and Irrigation Systems	$1,254,360	0.9%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023 and #22 in FY2024; up 9 since FY2024.
14	Lh&J / Arcadis Joint Venture, L.L.P. Top NAICS codes 541330 Engineering Services	$1,232,974	0.9%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 5 since FY2024.
15	City of San Diego Top NAICS codes 541380 Testing Laboratories and Services	$1,216,521	0.9%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; down 3 since FY2024.
16	Green Water Solutions, LLC Top NAICS codes 562910 Remediation Services	$1,080,247	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
17	Government of the United States Through GSA Financial and Payroll Service Top NAICS codes 532112 Passenger Car Leasing	$1,050,481	0.8%	Rank history: #17 in FY2021, #21 in FY2022, #12 in FY2023 and #20 in FY2024; up 3 since FY2024.
18	Ecosat LLC Top NAICS codes 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers	$820,134	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
19	Caterpillar Inc. Top NAICS codes 333120 Construction Machinery Manufacturing	$794,025	0.6%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #8 in FY2024; down 11 since FY2024.
20	CDM Federal Programs Corporation Top NAICS codes 541330 Engineering Services	$738,490	0.6%	Rank history: not on the FY2021 list, #59 in FY2022 and not on the FY2023–FY2024 lists; returned.
21	JNV Group Top NAICS codes 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers 561621 Security Systems Services (except Locksmiths)	$701,236	0.5%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; up 27 since FY2024.
22	ACE Industries, Inc. Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$651,632	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
23	Globex Corp Top NAICS codes 332312 Fabricated Structural Metal Manufacturing 333120 Construction Machinery Manufacturing	$583,240	0.4%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023 and #13 in FY2024; down 10 since FY2024.
24	Deere & Company Top NAICS codes 333111 Farm Machinery and Equipment Manufacturing	$525,534	0.4%	Rank history: not on the FY2021 list, #16 in FY2022, #48 in FY2023 and not on the FY2024 list; returned.
25	WEX Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$454,561	0.3%	Rank history: #37 in FY2021, #30 in FY2022, #16 in FY2023 and #24 in FY2024; down 1 since FY2024.
26	Georgia Commercial and Residential Elevator, LLC Top NAICS codes 541350 Building Inspection Services	$383,900	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
27	Momar, Incorporated Top NAICS codes 325199 All Other Basic Organic Chemical Manufacturing	$303,271	0.2%	Rank history: not on the FY2021 list, #27 in FY2022, #15 in FY2023 and #21 in FY2024; down 6 since FY2024.
28	Legend Technical Services of Arizona, Inc. Top NAICS codes 541380 Testing Laboratories and Services	$302,917	0.2%	Rank history: #30 in FY2021, #39 in FY2022, #26 in FY2023 and #37 in FY2024; up 9 since FY2024.
29	Mechanical & Automation Solutions LLC Top NAICS codes 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables	$289,360	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
30	E.f. Kearney, Limited Through Kearney & Company, P.C. Top NAICS codes 541211 Offices of Certified Public Accountants	$275,713	0.2%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; unchanged since FY2024.
31	Global Enterprise Systems LLC Through Global Enterprise, Inc. Top NAICS codes 336211 Motor Vehicle Body Manufacturing	$209,630	0.2%	Rank history: not on the FY2021 list, #32 in FY2022, not on the FY2023 list and #33 in FY2024; up 2 since FY2024.
32	CDW Government LLC Top NAICS codes 541512 Computer Systems Design Services 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$203,560	0.2%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; down 6 since FY2024.
33	Clean Infusion LLC Top NAICS codes 221320 Sewage Treatment Facilities	$174,492	0.1%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 19 since FY2024.
34	Jamul Indian Village of California Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities	$174,320	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
35	Odin Environmental Solutions, LLC Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$172,817	0.1%	Rank history: not on the FY2021 list, #1 in FY2022, #1 in FY2023 and #65 in FY2024; up 30 since FY2024.
36	Quzara LLC Top NAICS codes 541519 Other Computer Related Services	$165,900	0.1%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 3 since FY2024.
37	Agua Pura Services LLC Top NAICS codes 333914 Measuring, Dispensing, and Other Pumping Equipment Manufacturing	$165,179	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
38	DHL Analytical Inc. Top NAICS codes 541380 Testing Laboratories and Services	$158,461	0.1%	Rank history: #57 in FY2021, #49 in FY2022, #42 in FY2023 and not on the FY2024 list; returned.
39	Dani & Danny's Fabrication LLC Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$153,750	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
40	San Pasqual Band of Diegueno Mission Indians of California Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities	$150,920	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
41	Fedvet Construction Top NAICS codes 561730 Landscaping Services	$145,331	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
42	8X8, Inc. Top NAICS codes 517121 Telecommunications Resellers	$133,665	0.1%	Rank history: #36 in FY2021, #46 in FY2022, #37 in FY2023 and #46 in FY2024; up 4 since FY2024.
43	Environmental Systems Research Institute, Inc. Top NAICS codes 511210 Software Publishers	$131,923	0.1%	Rank history: #41 in FY2021, not on the FY2022 list, #39 in FY2023 and #32 in FY2024; down 11 since FY2024.
44	Hydra-Stop LLC Through Ads LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$126,935	0.1%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 10 since FY2024.
45	Iron Bow Technologies, LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$123,303	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
46	Alsay Inc. Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$123,100	0.1%	Rank history: not on the FY2021 list, #74 in FY2022, not on the FY2023 list and #63 in FY2024; up 17 since FY2024.
47	Access Communications Group, LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors 811210 Electronic and Precision Equipment Repair and Maintenance	$116,054	0.1%	Rank history: not on the FY2021 list, #15 in FY2022, #24 in FY2023 and not on the FY2024 list; returned.
48	Federal Contracts LLC Top NAICS codes 336112 Light Truck and Utility Vehicle Manufacturing	$115,128	0.1%	Rank history: #25 in FY2021, #20 in FY2022, #41 in FY2023 and #29 in FY2024; down 19 since FY2024.
49	Burhani Enterprises Inc. Top NAICS codes 332510 Hardware Manufacturing	$113,036	0.1%	Rank history: not on the FY2021 list, #55 in FY2022 and not on the FY2023–FY2024 lists; returned.
50	Micro Focus Software Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 511210 Software Publishers	$107,939	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
51	Dell Technologies Inc. Through Dell Federal Systems L.P Top NAICS codes 334111 Electronic Computer Manufacturing	$99,630	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
52	Communications Professionals Inc. Top NAICS codes 311920 Coffee and Tea Manufacturing	$98,351	0.1%	Rank history: not on the FY2021 list, #42 in FY2022, #49 in FY2023 and #38 in FY2024; down 14 since FY2024.
53	Arizona Department of Environmental Quality Dba: Adeq Top NAICS codes 924110 Administration of Air and Water Resource and Solid Waste Management Programs 562998 All Other Miscellaneous Waste Management Services	$94,447	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 26 since FY2024.
54	Aquatic Informatics ULC Top NAICS codes 513210 Software Publishers	$94,300	0.1%	Rank history: #50 in FY2021, #51 in FY2022, #45 in FY2023 and #53 in FY2024; down 1 since FY2024.
55	Pifinity, Inc. Top NAICS codes 541511 Custom Computer Programming Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$88,961	0.1%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 20 since FY2024.
56	New TECH Solutions, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$84,209	0.1%	Rank history: #59 in FY2021, #87 in FY2022, not on the FY2023 list and #52 in FY2024; down 4 since FY2024.
57	Tilde Language Services, LLC Top NAICS codes 541930 Translation and Interpretation Services	$81,900	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
58	Silva Silva International, LLC Top NAICS codes 541330 Engineering Services	$75,943	0.1%	Rank history: not on the FY2021 list, #45 in FY2022, #27 in FY2023 and not on the FY2024 list; returned.
59	LND Technical Services LLC Top NAICS codes 541380 Testing Laboratories and Services	$75,180	0.1%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; down 3 since FY2024.
60	Sikich CPA LLC Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$64,807	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
61	Midway Trailers, Inc. Top NAICS codes 336212 Truck Trailer Manufacturing	$58,950	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	NVS Corporate Services Inc Top NAICS codes 561210 Facilities Support Services	$56,005	<0.1%	Rank history: #55 in FY2021, #56 in FY2022, #62 in FY2023 and #66 in FY2024; up 4 since FY2024.
63	Kyocera Document Solutions America Inc. Top NAICS codes 333316 Photographic and Photocopying Equipment Manufacturing	$54,378	<0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; down 2 since FY2024.
64	Tierra Right of Way Services Ltd Top NAICS codes 531320 Offices of Real Estate Appraisers	$48,520	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
65	PDV Engineering LLC Top NAICS codes 541512 Computer Systems Design Services	$45,750	<0.1%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; down 38 since FY2024.
66	El Paso Electric Company Top NAICS codes 221122 Electric Power Distribution	$45,281	<0.1%	Rank history: #64 in FY2021, #68 in FY2022, #67 in FY2023 and #70 in FY2024; up 4 since FY2024.
67	Law Enforcement Specialists, Inc. Top NAICS codes 561612 Security Guards and Patrol Services	$44,869	<0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #59 in FY2023 and #60 in FY2024; down 7 since FY2024.
68	Gator Pump Inc. Top NAICS codes 333914 Measuring, Dispensing, and Other Pumping Equipment Manufacturing	$43,500	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Haaker Equipment Company Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$43,024	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Amigo Implement Company, Inc. Top NAICS codes 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing	$42,827	<0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #76 in FY2023 and not on the FY2024 list; returned.
71	Shell Energy North America (US) L.P. Through MP2 Energy LLC Top NAICS codes 221122 Electric Power Distribution	$37,836	<0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; down 9 since FY2024.
72	Enterprise Technology Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$35,429	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	J.p. Industries, Inc. Top NAICS codes 561720 Janitorial Services	$32,678	<0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #72 in FY2024; down 1 since FY2024.
74	Avid Core LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$31,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; down 29 since FY2024.
75	Homeland Security and Management Solutions, Inc. Top NAICS codes 492110 Couriers and Express Delivery Services	$29,812	<0.1%	Rank history: #87 in FY2021, #77 in FY2022, #77 in FY2023 and #88 in FY2024; up 13 since FY2024.
76	Govsmart, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$26,706	<0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #75 in FY2024; down 1 since FY2024.
77	Giving Tree Capital, LLC Top NAICS codes 324121 Asphalt Paving Mixture and Block Manufacturing	$26,427	<0.1%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 58 since FY2024.
78	Vector-Solutions.COM Inc. Through Redvector.com, LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$25,212	<0.1%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 2 since FY2024.
79	Elevate Enterprises LLC Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$23,183	<0.1%	Rank history: #84 in FY2021, #83 in FY2022, #82 in FY2023 and not on the FY2024 list; returned.
80	One Gas Inc. Top NAICS codes 221210 Natural Gas Distribution	$21,899	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	Berg Enterprises Inc. Top NAICS codes 561210 Facilities Support Services	$21,193	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Pyrocom Systems Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$21,121	<0.1%	Rank history: #66 in FY2021, #57 in FY2022, #80 in FY2023 and #64 in FY2024; down 18 since FY2024.
83	Fedex Corp Through Federal Express Corp Top NAICS codes 492110 Couriers and Express Delivery Services	$21,082	<0.1%	Rank history: #83 in FY2021, #94 in FY2022, #89 in FY2023 and #84 in FY2024; up 1 since FY2024.
84	FSR Consulting LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$20,126	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Computer Aided Solutions LLC Top NAICS codes 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables	$17,527	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	Anderson Machinery Co Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$17,320	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	South Texas Lighthouse for the Blind Foundation Top NAICS codes 812331 Linen Supply	$16,552	<0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and not on the FY2024 list; returned.
88	Water Monitoring Solutions, Inc. Top NAICS codes 332911 Industrial Valve Manufacturing	$13,876	<0.1%	Rank history: #27 in FY2021, #34 in FY2022, #99 in FY2023 and #55 in FY2024; down 33 since FY2024.
89	Vista Outdoor Inc. Through The Kinetic Group Sales LLC Top NAICS codes 332992 Small Arms Ammunition Manufacturing	$13,212	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Inductive Automation, LLC Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$11,300	<0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and not on the FY2024 list; returned.
91	Rendon Industry Solutions, LLC Top NAICS codes 561730 Landscaping Services	$11,100	<0.1%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; down 4 since FY2024.
92	Reliance Contractors Inc. Top NAICS codes 561720 Janitorial Services	$11,008	<0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; down 3 since FY2024.
93	El Paso Water Utilities Public Service Board Top NAICS codes 562111 Solid Waste Collection	$10,843	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2024 list; returned.
94	Swanson Services LLC Top NAICS codes 561612 Security Guards and Patrol Services	$10,738	<0.1%	Rank history: #29 in FY2021, #28 in FY2022, #46 in FY2023 and #41 in FY2024; down 53 since FY2024.
95	Wi-Her LLC Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$10,663	<0.1%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2023 list and #100 in FY2024; up 5 since FY2024.
96	Safe Life Defense LLC Top NAICS codes 339113 Surgical Appliance and Supplies Manufacturing	$10,147	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Triangle Maintenance and Commercial Janitorial Services LLC Top NAICS codes 561720 Janitorial Services	$9,600	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Wyler Industrial Works Inc. Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$9,400	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Liberty Utilities (Litchfield Park Water & Sewer) Corp. Top NAICS codes 221310 Water Supply and Irrigation Systems	$8,591	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	K-B Insurance Agency, Inc. Top NAICS codes 524298 All Other Insurance Related Activities	$8,252	<0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; down 1 since FY2024.

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 $133 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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