Top 100 International Boundary and Water Commission U.S.-Mexico Contractors, FY2024

Name: Top 100 International Boundary and Water Commission U.S.-Mexico Contractors, FY2024
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Agency page on GovTribe

The top 10 won 86% of FY2024 International Boundary and Water Commission U.S.-Mexico contract dollars

Contract obligations: $159,704,091 Net of deobligations, by the International Boundary and Water Commission U.S.-Mexico and its offices
Contractors: 135 Parent companies with an obligation
Largest contractor: Arcadis U.s., Inc. $58.5 million, 35.9% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Arcadis U.s., Inc. Top NAICS codes 541330 Engineering Services	$58,472,234	35.9%	Rank history: not on the FY2021 list, #26 in FY2022, not on the FY2023 list and #12 in FY2025; returned.
2	PCL Construction Inc Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$42,435,504	26.1%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2025; new.
3	Veolia Water West Operating Services Inc. Top NAICS codes 221320 Sewage Treatment Facilities	$16,548,118	10.2%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
4	SAN Diego Gas & Electric Company Top NAICS codes 221122 Electric Power Distribution	$5,757,619	3.5%	Rank history: #3 in FY2021, #6 in FY2022, #4 in FY2023 and #5 in FY2025; unchanged since FY2023.
5	Veolia Water North America-West LLC Through Veolia Water West Operating Services Inc. Top NAICS codes 221320 Sewage Treatment Facilities	$4,383,155	2.7%	Rank history: #1 in FY2021, #3 in FY2022, #2 in FY2023 and not on the FY2025 list; down 3 since FY2023.
6	American Material Handling, Inc. Top NAICS codes 333120 Construction Machinery Manufacturing	$4,137,262	2.5%	Rank history: #21 in FY2021, #10 in FY2022, #10 in FY2023 and #8 in FY2025; up 4 since FY2023.
7	At&T Inc. 3 awardees, including At&T Enterprises, LLC and Att Mobility LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite)	$2,740,229	1.7%	Rank history: #6 in FY2021, #19 in FY2022, #6 in FY2023 and #11 in FY2025; down 1 since FY2023.
8	Caterpillar Inc. Top NAICS codes 333120 Construction Machinery Manufacturing	$2,279,858	1.4%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #19 in FY2025; down 3 since FY2023.
9	Lh&J / Arcadis Joint Venture, L.L.P. Top NAICS codes 541330 Engineering Services	$2,223,254	1.4%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2025; new.
10	CGI Federal Inc. Top NAICS codes 541519 Other Computer Related Services	$1,576,904	1.0%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
11	Rust & Sons Trucking, Inc. Top NAICS codes 561210 Facilities Support Services	$1,290,039	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
12	City of San Diego Top NAICS codes 541380 Testing Laboratories and Services	$1,254,272	0.8%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; new.
13	Globex Corp Top NAICS codes 333120 Construction Machinery Manufacturing	$1,240,015	0.8%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023 and #23 in FY2025; up 53 since FY2023.
14	Clean Infusion LLC Top NAICS codes 221320 Sewage Treatment Facilities	$1,155,743	0.7%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
15	Egc-Ageiss LLC Top NAICS codes 541620 Environmental Consulting Services	$1,125,704	0.7%	Rank history: #48 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
16	Texas Electrical & Testing Services LLC Top NAICS codes 333611 Turbine and Turbine Generator Set Units Manufacturing 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers	$1,068,418	0.7%	Rank history: #16 in FY2021, #23 in FY2022, #20 in FY2023 and #7 in FY2025; up 4 since FY2023.
17	UNS Energy Corporation Through Uns Electric, Inc. Top NAICS codes 221122 Electric Power Distribution	$930,099	0.6%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
18	Wagner Equipment Co Top NAICS codes 333120 Construction Machinery Manufacturing	$853,135	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
19	Giving Tree Capital, LLC Top NAICS codes 324121 Asphalt Paving Mixture and Block Manufacturing	$799,324	0.5%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; new.
20	Government of the United States Through GSA Financial and Payroll Service Top NAICS codes 532111 Passenger Car Rental 532112 Passenger Car Leasing	$775,449	0.5%	Rank history: #17 in FY2021, #21 in FY2022, #12 in FY2023 and #17 in FY2025; down 8 since FY2023.
21	Momar, Incorporated Top NAICS codes 325199 All Other Basic Organic Chemical Manufacturing	$751,013	0.5%	Rank history: not on the FY2021 list, #27 in FY2022, #15 in FY2023 and #27 in FY2025; down 6 since FY2023.
22	Tatonka Trucking Llc. Top NAICS codes 221310 Water Supply and Irrigation Systems	$649,204	0.4%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023 and #15 in FY2025; down 15 since FY2023.
23	UNS Electric Inc. Top NAICS codes 221122 Electric Power Distribution	$410,197	0.3%	Rank history: #10 in FY2021, #14 in FY2022, #9 in FY2023 and not on the FY2025 list; down 14 since FY2023.
24	WEX Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$400,674	0.2%	Rank history: #37 in FY2021, #30 in FY2022, #16 in FY2023 and #25 in FY2025; down 8 since FY2023.
25	Structural Hardware and Supply, Inc. Top NAICS codes 212321 Construction Sand and Gravel Mining	$328,050	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
26	CDW Government LLC Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$313,692	0.2%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
27	PDV Engineering LLC Top NAICS codes 541512 Computer Systems Design Services	$300,000	0.2%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; new.
28	Ship EZ Transportation LLC Top NAICS codes 562111 Solid Waste Collection	$298,140	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
29	Federal Contracts LLC Top NAICS codes 336112 Light Truck and Utility Vehicle Manufacturing 336999 All Other Transportation Equipment Manufacturing	$297,247	0.2%	Rank history: #25 in FY2021, #20 in FY2022, #41 in FY2023 and #48 in FY2025; up 12 since FY2023.
30	E.f. Kearney, Limited Through Kearney & Company, P.C. Top NAICS codes 541211 Offices of Certified Public Accountants	$268,753	0.2%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
31	Sanford Federal, Inc. Top NAICS codes 335314 Relay and Industrial Control Manufacturing	$263,200	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
32	Environmental Systems Research Institute, Inc. Top NAICS codes 511210 Software Publishers	$240,136	0.1%	Rank history: #41 in FY2021, not on the FY2022 list, #39 in FY2023 and #43 in FY2025; up 7 since FY2023.
33	Global Enterprise Systems LLC Through Global Enterprise, Inc. Top NAICS codes 336211 Motor Vehicle Body Manufacturing	$216,795	0.1%	Rank history: not on the FY2021 list, #32 in FY2022, not on the FY2023 list and #31 in FY2025; returned.
34	Stiles General Contractors LLC Top NAICS codes 561720 Janitorial Services	$215,993	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
35	Pifinity, Inc. Top NAICS codes 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing	$214,530	0.1%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2025; new.
36	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top NAICS codes 541519 Other Computer Related Services	$207,833	0.1%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and not on the FY2025 list; down 5 since FY2023.
37	Legend Technical Services of Arizona, Inc. Top NAICS codes 541380 Testing Laboratories and Services	$200,914	0.1%	Rank history: #30 in FY2021, #39 in FY2022, #26 in FY2023 and #28 in FY2025; down 11 since FY2023.
38	Communications Professionals Inc. Top NAICS codes 541511 Custom Computer Programming Services	$192,490	0.1%	Rank history: not on the FY2021 list, #42 in FY2022, #49 in FY2023 and #52 in FY2025; up 11 since FY2023.
39	Quzara LLC Top NAICS codes 541519 Other Computer Related Services	$184,500	0.1%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; new.
40	Applied Security Technologies Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$181,281	0.1%	Rank history: #60 in FY2021, #40 in FY2022, #8 in FY2023 and not on the FY2025 list; down 32 since FY2023.
41	Swanson Services LLC Top NAICS codes 561612 Security Guards and Patrol Services	$175,062	0.1%	Rank history: #29 in FY2021, #28 in FY2022, #46 in FY2023 and #94 in FY2025; up 5 since FY2023.
42	Robbwaterpartners LLC Top NAICS codes 924120 Administration of Conservation Programs	$165,000	0.1%	Rank history: not on the FY2021 list, #79 in FY2022, #30 in FY2023 and not on the FY2025 list; down 12 since FY2023.
43	Federon Procurement Solutions Top NAICS codes 333611 Turbine and Turbine Generator Set Units Manufacturing	$147,600	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
44	Reagent World Inc Top NAICS codes 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers	$143,710	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
45	Avid Core LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$130,388	0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
46	8X8, Inc. Top NAICS codes 517121 Telecommunications Resellers	$129,000	0.1%	Rank history: #36 in FY2021, #46 in FY2022, #37 in FY2023 and #42 in FY2025; down 9 since FY2023.
47	Pinnacle West Capital Corporation Through Liberty Utilities (Litchfield Park Water & Sewer) Corp. Top NAICS codes 221310 Water Supply and Irrigation Systems	$128,285	0.1%	Rank history: #47 in FY2021, #50 in FY2022, #25 in FY2023 and #99 in FY2025; down 22 since FY2023.
48	JNV Group Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$120,568	0.1%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
49	Artisan Consulting LLC Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$114,500	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
50	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers	$104,380	0.1%	Rank history: #53 in FY2021, #44 in FY2022, not on the FY2023 list and not on the FY2025 list; up 56 since FY2023.
51	All American Federal Construction LLC Top NAICS codes 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers	$90,120	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
52	New TECH Solutions, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$85,103	0.1%	Rank history: #59 in FY2021, #87 in FY2022, not on the FY2023 list and #56 in FY2025; returned.
53	Aquatic Informatics ULC Top NAICS codes 541511 Custom Computer Programming Services	$82,000	0.1%	Rank history: #50 in FY2021, #51 in FY2022, #45 in FY2023 and #54 in FY2025; down 8 since FY2023.
54	Hydra-Stop LLC Through Ads LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$81,230	<0.1%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; new.
55	Water Monitoring Solutions, Inc. Top NAICS codes 423490 Other Professional Equipment and Supplies Merchant Wholesalers	$72,380	<0.1%	Rank history: #27 in FY2021, #34 in FY2022, #99 in FY2023 and #88 in FY2025; up 44 since FY2023.
56	LND Technical Services LLC Top NAICS codes 541380 Testing Laboratories and Services	$71,600	<0.1%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; new.
57	Redorange LLC Top NAICS codes 238220 Plumbing, Heating, and Air-Conditioning Contractors	$69,326	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Sterling Computers Corporation Top NAICS codes 334111 Electronic Computer Manufacturing	$68,933	<0.1%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and not on the FY2025 list; down 29 since FY2023.
59	Verizon Through MCI Communications Services LLC Top NAICS codes 517110 Wired Telecommunications Carriers	$57,606	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Law Enforcement Specialists, Inc. Top NAICS codes 561612 Security Guards and Patrol Services	$55,080	<0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #59 in FY2023 and #67 in FY2025; down 1 since FY2023.
61	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 #63 in FY2025; new.
62	Shell Energy North America (US) L.P. Through MP2 Energy LLC Top NAICS codes 221122 Electric Power Distribution	$53,594	<0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
63	Alsay Inc. Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$49,500	<0.1%	Rank history: not on the FY2021 list, #74 in FY2022, not on the FY2023 list and #46 in FY2025; returned.
64	Pyrocom Systems Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$49,248	<0.1%	Rank history: #66 in FY2021, #57 in FY2022, #80 in FY2023 and #82 in FY2025; up 16 since FY2023.
65	Odin Environmental Solutions, LLC Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$43,532	<0.1%	Rank history: not on the FY2021 list, #1 in FY2022, #1 in FY2023 and #35 in FY2025; down 64 since FY2023.
66	NVS Corporate Services Inc 2 awardees Top NAICS codes 561210 Facilities Support Services 561730 Landscaping Services	$36,701	<0.1%	Rank history: #55 in FY2021, #56 in FY2022, #62 in FY2023 and #62 in FY2025; down 4 since FY2023.
67	Dexian, LLC Through Disys Solutions, Inc. Top NAICS codes 811210 Electronic and Precision Equipment Repair and Maintenance	$35,237	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	R.b. National, Ltd. Co. Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$34,390	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
69	DLT Solutions, LLC Top NAICS codes 541519 Other Computer Related Services	$33,939	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	El Paso Electric Company Top NAICS codes 221122 Electric Power Distribution	$33,516	<0.1%	Rank history: #64 in FY2021, #68 in FY2022, #67 in FY2023 and #66 in FY2025; down 3 since FY2023.
71	Contractor's Barricade Service, Inc. Top NAICS codes 332996 Fabricated Pipe and Pipe Fitting Manufacturing	$32,445	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	J.p. Industries, Inc. Top NAICS codes 561720 Janitorial Services	$31,693	<0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and #73 in FY2025; up 6 since FY2023.
73	Vcloud GOV Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$30,112	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	Rational 360 Inc. Top NAICS codes 541613 Marketing Consulting Services	$29,039	<0.1%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2025 list; down 27 since FY2023.
75	Govsmart, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$27,999	<0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #76 in FY2025; up 4 since FY2023.
76	LB Technology Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$27,071	<0.1%	Rank history: #79 in FY2021, #82 in FY2022, #85 in FY2023 and not on the FY2025 list; up 9 since FY2023.
77	Danaher Corporation 2 awardees, including Hach Company Top NAICS codes 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables	$25,456	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	One Gas Inc. Top NAICS codes 221210 Natural Gas Distribution	$24,958	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2025 list; up 17 since FY2023.
79	Arizona Department of Environmental Quality Dba: Adeq Top NAICS codes 924110 Administration of Air and Water Resource and Solid Waste Management Programs	$23,846	<0.1%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
80	Vector-Solutions.COM Inc. Through Redvector.com, LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$23,509	<0.1%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2025; new.
81	It Devices Online Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$19,838	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
82	South Texas Buildcon LLC Top NAICS codes 238160 Roofing Contractors	$19,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Pureline Treatment Systems LLC Top NAICS codes 221310 Water Supply and Irrigation Systems	$18,273	<0.1%	Rank history: not on the FY2021 list, #88 in FY2022, #43 in FY2023 and not on the FY2025 list; down 40 since FY2023.
84	Fedex Corp Through Federal Express Corp Top NAICS codes 492110 Couriers and Express Delivery Services	$18,273	<0.1%	Rank history: #83 in FY2021, #94 in FY2022, #89 in FY2023 and #83 in FY2025; up 5 since FY2023.
85	Franklin Young International, Incorporated Top NAICS codes 334516 Analytical Laboratory Instrument Manufacturing	$15,500	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Octavio Reyes Top NAICS codes 238220 Plumbing, Heating, and Air-Conditioning Contractors	$15,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Rendon Industry Solutions, LLC Top NAICS codes 561730 Landscaping Services	$14,400	<0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2025; new.
88	Homeland Security and Management Solutions, Inc. Top NAICS codes 492110 Couriers and Express Delivery Services	$12,922	<0.1%	Rank history: #87 in FY2021, #77 in FY2022, #77 in FY2023 and #75 in FY2025; down 11 since FY2023.
89	Reliance Contractors Inc. Top NAICS codes 561720 Janitorial Services	$12,448	<0.1%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2025; up 14 since FY2023.
90	WCD Enterprises, LLC Top NAICS codes 561720 Janitorial Services	$11,375	<0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and not on the FY2025 list; up 8 since FY2023.
91	Discovery Management Group LLC Top NAICS codes 336411 Aircraft Manufacturing	$11,105	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
92	E-Imagedata Corp. Top NAICS codes 333298 All Other Industrial Machinery Manufacturing	$10,968	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	DNA Capital Consulting LLC Top NAICS codes 561730 Landscaping Services	$10,800	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	4L Distributors LLC Top NAICS codes 312112 Bottled Water Manufacturing	$9,093	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Grande Garbage Collection Co. L.L.C. Top NAICS codes 562111 Solid Waste Collection	$8,840	<0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and not on the FY2025 list; up 1 since FY2023.
96	Royal Dutch Shell PLC Through MP2 Energy LLC Top NAICS codes 221122 Electric Power Distribution	$8,650	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 27 since FY2023.
97	Shilog, Ltd Top NAICS codes 325199 All Other Basic Organic Chemical Manufacturing	$8,437	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Tough Stump Technologies LLC Top NAICS codes 541360 Geophysical Surveying and Mapping Services	$8,350	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	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 #100 in FY2025; up 8 since FY2023.
100	Wi-Her LLC Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$7,074	<0.1%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2023 list and #95 in FY2025; up 1 since FY2023.

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100 of 135 contractors listed here. See the rest on GovTribe.

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 $163 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

Who were the top 10 International Boundary and Water Commission U.S.-Mexico contractors in FY2024?

1. Arcadis U.s., Inc. ($58.5M), 2. PCL Construction Inc ($42.4M), 3. Veolia Water West Operating Services Inc. ($16.5M), 4. SAN Diego Gas & Electric Company ($5.76M), 5. Veolia Water North America-West LLC ($4.38M), 6. American Material Handling, Inc. ($4.14M), 7. At&T Inc. ($2.74M), 8. Caterpillar Inc. ($2.28M), 9. Lh&J / Arcadis Joint Venture, L.L.P. ($2.22M), 10. CGI Federal Inc. ($1.58M).

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