Top 100 Department of the Interior Contractors, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	BWI Tpc, A Joint Venture Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$125,545,534	2.4%	Rank history: not on the FY2021 list, #8 in FY2023 and not on the FY2024–FY2025 lists; new.
2	NW Construction, Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$122,853,413	2.3%	Rank history: not on the FY2021 list, #9 in FY2023, #5 in FY2024 and #1 in FY2025; new.
3	Tepa EC, LLC 2 awardees Top NAICS codes 236220 Commercial and Institutional Building Construction 238220 Plumbing, Heating, and Air-Conditioning Contractors	$93,634,406	1.8%	Rank history: not on the FY2021 list, not on the FY2023 list, #2 in FY2024 and #5 in FY2025; new.
4	Jccbg Top NAICS codes 236220 Commercial and Institutional Building Construction	$85,448,280	1.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
5	S.j. Louis Construction, Inc. Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$76,789,704	1.5%	Rank history: not on the FY2021 list, #5 in FY2023 and not on the FY2024–FY2025 lists; new.
6	Kbr, Inc. 4 awardees, including KBR Wyle Services, LLC Top NAICS codes 541513 Computer Facilities Management Services 811219 Other Electronic and Precision Equipment Repair and Maintenance 541330 Engineering Services	$57,628,281	1.1%	Rank history: #2 in FY2021, #6 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
7	The Walsh Group Through Archer Western Construction, LLC Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$54,764,089	1.0%	Rank history: #30 in FY2021, #16 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2021.
8	Hensel Phelps Construction Co 2 awardees Top NAICS codes 236220 Commercial and Institutional Building Construction	$52,442,004	1.0%	Rank history: #21 in FY2021, not on the FY2023 list, #6 in FY2024 and not on the FY2025 list; up 13 since FY2021.
9	Sealaska Corporation 2 awardees, including Sealaska Constructors LLC and Managed Business Solutions LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 541690 Other Scientific and Technical Consulting Services 541519 Other Computer Related Services	$45,793,832	0.9%	Rank history: #11 in FY2021, #4 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
10	RBA Group the 2 awardees, including NV5 Geospatial, Inc. Top NAICS codes 541360 Geophysical Surveying and Mapping Services 541370 Surveying and Mapping (except Geophysical) Services	$38,439,597	0.7%	Rank history: #8 in FY2021, #12 in FY2023, not on the FY2024 list and #19 in FY2025; down 2 since FY2021.
11	Countertrade Products, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services	$36,688,524	0.7%	Rank history: #13 in FY2021, #13 in FY2023, #11 in FY2024 and #28 in FY2025; up 2 since FY2021.
12	Manson Construction Co. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$35,499,952	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
13	Blinderman Construction Co Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$35,324,000	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
14	Cherokee Nation 5 awardees, including Cherokee CRC LLC, Cherokee Federal Solutions, L.L.C. and Cherokee Nation Strategic Programs, L.L.C. Top NAICS codes 236220 Commercial and Institutional Building Construction 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services	$34,151,760	0.6%	Rank history: #6 in FY2021, #2 in FY2023, not on the FY2024 list and #78 in FY2025; down 8 since FY2021.
15	Central Environmental Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$32,992,370	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
16	Tutor Perini Corporation 2 awardees, including Perini Management Services, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 238290 Other Building Equipment Contractors	$32,938,676	0.6%	Rank history: #58 in FY2021, #11 in FY2023, #10 in FY2024 and not on the FY2025 list; up 42 since FY2021.
17	Planet Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services	$32,369,050	0.6%	Rank history: #48 in FY2021, #15 in FY2023, #12 in FY2024 and #14 in FY2025; up 31 since FY2021.
18	Hdr, Inc. 7 awardees, including HDR Engineering, Inc., HDR MN NPS JV and HDR Environmental, Operations and Construction, Inc. Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541310 Architectural Services	$31,919,440	0.6%	Rank history: #43 in FY2021, #30 in FY2023, #35 in FY2024 and #74 in FY2025; up 25 since FY2021.
19	Lumen Technologies Government Solutions, Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$31,437,812	0.6%	Rank history: not on the FY2021 list, not on the FY2023 list, #16 in FY2024 and not on the FY2025 list; new.
20	Weeminuche Construction Authority Through WCA Construction, LLC Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$30,029,352	0.6%	Rank history: not on the FY2021 list, #44 in FY2023 and not on the FY2024–FY2025 lists; up 403 since FY2021.
21	Ldss, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$29,556,031	0.6%	Rank history: #25 in FY2021, #21 in FY2023, #21 in FY2024 and not on the FY2025 list; up 4 since FY2021.
22	ERA Helicopters LLC Through Bristow LLC Top NAICS codes 481211 Nonscheduled Chartered Passenger Air Transportation	$29,257,937	0.6%	Rank history: #9 in FY2021, #26 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
23	BCI Construction Usa, Inc. Top NAICS codes 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing 237990 Other Heavy and Civil Engineering Construction	$27,678,046	0.5%	Rank history: #51 in FY2021 and not on the FY2023–FY2025 lists; up 28 since FY2021.
24	Louis C. Allegrone, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 238140 Masonry Contractors	$26,728,684	0.5%	Rank history: not on the FY2021 list, #18 in FY2023 and not on the FY2024–FY2025 lists; new.
25	Ames Construction, Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 238110 Poured Concrete Foundation and Structure Contractors	$25,864,611	0.5%	Rank history: #15 in FY2021, not on the FY2023–FY2024 lists and #4 in FY2025; down 10 since FY2021.
26	Perimeter Solutions LP Top NAICS codes 115310 Support Activities for Forestry 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing 325314 Fertilizer (Mixing Only) Manufacturing	$25,044,716	0.5%	Rank history: #10 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
27	ICF International, Inc. Through ICF Incorporated, L.L.C. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$23,233,743	0.4%	Rank history: not on the FY2021 list, #74 in FY2023 and not on the FY2024–FY2025 lists; up 102 since FY2021.
28	RJS Construction Inc. 3 awardees Top NAICS codes 236220 Commercial and Institutional Building Construction 237110 Water and Sewer Line and Related Structures Construction 237990 Other Heavy and Civil Engineering Construction	$22,936,178	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
29	Smartronix LLC Top NAICS codes 541519 Other Computer Related Services	$22,471,666	0.4%	Rank history: #28 in FY2021, #32 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
30	Woolpert, Inc. 2 awardees, including Geomatics Data Solutions, A Woolpert Company, LLC Top NAICS codes 541360 Geophysical Surveying and Mapping Services 541611 Administrative Management and General Management Consulting Services 541370 Surveying and Mapping (except Geophysical) Services	$22,337,341	0.4%	Rank history: #53 in FY2021, #79 in FY2023, #15 in FY2024 and #31 in FY2025; up 23 since FY2021.
31	Nuaxis LLC Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services	$22,212,305	0.4%	Rank history: #19 in FY2021, #48 in FY2023, #22 in FY2024 and #63 in FY2025; down 12 since FY2021.
32	Hawaiian Native Corporation Through B & H Contracting Company, Inc. Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$19,936,942	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	Arctic Slope Regional Corporation 5 awardees, including Vistronix, LLC, Asrc Consulting & Environmental Services, LLC and EQM Services, LLC Top NAICS codes 541519 Other Computer Related Services 213112 Support Activities for Oil and Gas Operations 238910 Site Preparation Contractors	$19,541,979	0.4%	Rank history: #5 in FY2021, #40 in FY2023, #68 in FY2024 and #18 in FY2025; down 28 since FY2021.
34	Nationwide It Services Inc. Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services	$19,436,120	0.4%	Rank history: #73 in FY2021, #46 in FY2023, #37 in FY2024 and #57 in FY2025; up 39 since FY2021.
35	Science Applications International Corporation 2 awardees Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services	$19,260,587	0.4%	Rank history: #95 in FY2021 and not on the FY2023–FY2025 lists; up 60 since FY2021.
36	Coastal Design & Construction, Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$19,191,742	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
37	The Dewberry Companies LC 2 awardees, including Dewberry Engineers Inc. and Dewberry Consultants LLC Top NAICS codes 541360 Geophysical Surveying and Mapping Services 541620 Environmental Consulting Services	$19,176,665	0.4%	Rank history: #47 in FY2021, #38 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2021.
38	Garco Construction, Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$18,164,863	0.3%	Rank history: #27 in FY2021, #42 in FY2023, #50 in FY2024 and #32 in FY2025; down 11 since FY2021.
39	Verizon Communications Inc. 5 awardees, including Cellco Partnership, Verizon Business Network Services LLC and Verizon Connect NWF Inc. Top NAICS codes 541519 Other Computer Related Services 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite)	$18,088,002	0.3%	Rank history: #22 in FY2021, #19 in FY2023 and not on the FY2024–FY2025 lists; down 17 since FY2021.
40	Nexgen Technologies Inc. Top NAICS codes 541511 Custom Computer Programming Services	$17,910,310	0.3%	Rank history: #42 in FY2021, #51 in FY2023, #51 in FY2024 and #60 in FY2025; up 2 since FY2021.
41	Stone & Lime Imports, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 238190 Other Foundation, Structure, and Building Exterior Contractors	$17,618,821	0.3%	Rank history: #82 in FY2021, #25 in FY2023, not on the FY2024 list and #29 in FY2025; up 41 since FY2021.
42	Accenture Inc. Through Accenture Federal Services LLC Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services	$17,487,156	0.3%	Rank history: not on the FY2021 list, #14 in FY2023 and not on the FY2024–FY2025 lists; new.
43	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top NAICS codes 541511 Custom Computer Programming Services 541519 Other Computer Related Services	$17,134,470	0.3%	Rank history: #34 in FY2021, #33 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2021.
44	Couvillion Group LLC Top NAICS codes 541370 Surveying and Mapping (except Geophysical) Services	$16,223,580	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
45	Aero Spray Inc Top NAICS codes 115310 Support Activities for Forestry	$16,222,362	0.3%	Rank history: not on the FY2021 list, #90 in FY2023 and not on the FY2024–FY2025 lists; new.
46	Deloitte LLP 2 awardees, including Deloitte & Touche LLP and Deloitte Consulting LLP Top NAICS codes 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services	$16,133,356	0.3%	Rank history: #52 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
47	Accenture Federal Services LLC Top NAICS codes 541512 Computer Systems Design Services	$16,058,213	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
48	Dell Federal Systems L.P. 2 awardees, including Dell Marketing L.P. Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing	$15,497,940	0.3%	Rank history: #14 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 34 since FY2021.
49	Environmental Management & Planning Solutions LLC 2 awardees Top NAICS codes 541620 Environmental Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$15,430,665	0.3%	Rank history: #86 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; up 37 since FY2021.
50	Classic Site Solutions Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$15,007,445	0.3%	Rank history: #92 in FY2021, #43 in FY2023, #98 in FY2024 and not on the FY2025 list; up 42 since FY2021.
51	Stantec Incorporated 9 awardees, including Stantec Consulting Services Inc. Top NAICS codes 541330 Engineering Services 541620 Environmental Consulting Services	$14,815,956	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 59 since FY2021.
52	City of Philadelphia Top NAICS codes 221210 Natural Gas Distribution	$14,692,372	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 217 since FY2021.
53	MC3 Solutions LLC Top NAICS codes 237310 Highway, Street, and Bridge Construction	$14,491,634	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
54	Mno-Bmadsen Through Seven Generations Architecture & Engineering LLC Top NAICS codes 541330 Engineering Services 541310 Architectural Services	$14,266,965	0.3%	Rank history: not on the FY2021 list, #94 in FY2023 and not on the FY2024–FY2025 lists; up 149 since FY2021.
55	Akron Building & Outdoor Maintenance Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 238910 Site Preparation Contractors	$14,222,972	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
56	JM Construction Services Inc. Through Vljm, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$13,967,305	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
57	HB Hansen Construction, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$13,760,000	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
58	Trace3 Government, LLC Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$13,659,837	0.3%	Rank history: #71 in FY2021, #65 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2021.
59	Structural Engineering Group Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 237310 Highway, Street, and Bridge Construction	$13,466,277	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	Merrick-Surdex Joint Venture LLP Top NAICS codes 541360 Geophysical Surveying and Mapping Services	$13,389,574	0.3%	Rank history: not on the FY2021 list, #62 in FY2023, #78 in FY2024 and #44 in FY2025; up 164 since FY2021.
61	Aleut Construction LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$13,267,784	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
62	Sierra7, Inc. Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services	$13,194,981	0.3%	Rank history: #80 in FY2021 and not on the FY2023–FY2025 lists; up 18 since FY2021.
63	Imsolutions, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$13,130,434	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
64	Olgoonik Oilfield Services LLC Top NAICS codes 213112 Support Activities for Oil and Gas Operations	$13,075,260	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #20 in FY2024 and not on the FY2025 list; new.
65	Sterling Computers Corporation Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$12,802,700	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #71 in FY2024 and not on the FY2025 list; up 74 since FY2021.
66	Jacobs Government Services Company Top NAICS codes 541330 Engineering Services	$12,649,183	0.2%	Rank history: #35 in FY2021, #29 in FY2023 and not on the FY2024–FY2025 lists; down 31 since FY2021.
67	Caci, Inc. - Federal Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services	$12,624,657	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
68	Nana Regional Corporation Inc 7 awardees, including Affigent, LLC, Tuvli LLC and Dowl, LLC Top NAICS codes 541519 Other Computer Related Services 541330 Engineering Services 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing	$12,534,501	0.2%	Rank history: #78 in FY2021, #86 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2021.
69	Koniag, Inc. 3 awardees, including Tuknik Government Services LLC, Arlluk Technology Solutions LLC and Kadiak LLC Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$12,515,000	0.2%	Rank history: not on the FY2021 list, #53 in FY2023, not on the FY2024 list and #95 in FY2025; up 35 since FY2021.
70	Montcal LLC Top NAICS codes 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing 237990 Other Heavy and Civil Engineering Construction	$12,447,450	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
71	Fugro Geospatial Inc. 3 awardees, including Fugro USA Land, Inc. Top NAICS codes 541360 Geophysical Surveying and Mapping Services	$12,396,770	0.2%	Rank history: #100 in FY2021, #95 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2021.
72	Regency Consulting Inc. Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing 511210 Software Publishers	$11,975,589	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 51 since FY2021.
73	Southland Holdings LLC Through Oscar Renda Contracting Inc. Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$11,388,544	0.2%	Rank history: #18 in FY2021 and not on the FY2023–FY2025 lists; down 55 since FY2021.
74	Environmental Systems Research Institute, Inc. Top NAICS codes 511210 Software Publishers	$11,308,915	0.2%	Rank history: #65 in FY2021, not on the FY2023 list, #59 in FY2024 and #82 in FY2025; down 9 since FY2021.
75	Dj&A, P.C. Top NAICS codes 541330 Engineering Services 541620 Environmental Consulting Services 541370 Surveying and Mapping (except Geophysical) Services	$11,031,299	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 80 since FY2021.
76	Hamilton Pacific Chamberlain LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$10,685,636	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
77	Federal Contracts LLC Top NAICS codes 336112 Light Truck and Utility Vehicle Manufacturing 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing 333120 Construction Machinery Manufacturing	$10,660,496	0.2%	Rank history: not on the FY2021 list, #77 in FY2023, #87 in FY2024 and not on the FY2025 list; up 102 since FY2021.
78	Premier Trailer Leasing Inc. Through VF Imagewear, Inc. Top NAICS codes 315210 Cut and Sew Apparel Contractors	$10,578,461	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
79	Cherokee Nation System Solutions LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 561422 Telemarketing Bureaus and Other Contact Centers	$10,509,713	0.2%	Rank history: #57 in FY2021, #73 in FY2023 and not on the FY2024–FY2025 lists; down 22 since FY2021.
80	Flad Affiliated Design Partnership Top NAICS codes 541310 Architectural Services	$10,386,442	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
81	Kearns & West Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$10,241,359	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #79 in FY2024 and not on the FY2025 list; up 50 since FY2021.
82	Commdex, LLC Top NAICS codes 541690 Other Scientific and Technical Consulting Services 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 541990 All Other Professional, Scientific, and Technical Services	$10,209,867	0.2%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; up 14 since FY2021.
83	Record Steel and Construction, Inc. Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction	$10,171,646	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #9 in FY2025; new.
84	Arrow Alliance Industries, LLC Top NAICS codes 519190 All Other Information Services	$9,996,350	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 74 since FY2021.
85	Oil Price Information Service LLC 4 awardees, including Premier Data Services Inc. and IHS Global Inc. Top NAICS codes 541519 Other Computer Related Services 511210 Software Publishers 541370 Surveying and Mapping (except Geophysical) Services	$9,724,226	0.2%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2021.
86	Nippon Telegraph and Telephone Corporation 2 awardees, including NTT Data Federal Services, Inc. and Docomo Pacific, Inc. Top NAICS codes 541511 Custom Computer Programming Services 517312 Wireless Telecommunications Carriers (except Satellite)	$9,643,463	0.2%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
87	Addon Services LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$9,575,999	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
88	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$9,541,946	0.2%	Rank history: #66 in FY2021, #75 in FY2023, #90 in FY2024 and not on the FY2025 list; down 22 since FY2021.
89	Hartman-Walsh Corp Through Hartman-Walsh Painting Company Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction 238320 Painting and Wall Covering Contractors 237990 Other Heavy and Civil Engineering Construction	$9,531,775	0.2%	Rank history: not on the FY2021 list, #82 in FY2023, #39 in FY2024 and #30 in FY2025; up 52 since FY2021.
90	Danaher Corporation 6 awardees, including OTT Hydromet Corp, Hach Company and Sea-Bird Electronics, Inc. Top NAICS codes 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334519 Other Measuring and Controlling Device Manufacturing 334516 Analytical Laboratory Instrument Manufacturing	$9,530,823	0.2%	Rank history: #77 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
91	Sea Pac Engineering Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 238220 Plumbing, Heating, and Air-Conditioning Contractors	$9,380,449	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	JMG Constructors LLC Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction 236220 Commercial and Institutional Building Construction 237990 Other Heavy and Civil Engineering Construction	$9,171,130	0.2%	Rank history: #55 in FY2021, #37 in FY2023 and not on the FY2024–FY2025 lists; down 37 since FY2021.
93	Brickl Bros., Inc. Top NAICS codes 236210 Industrial Building Construction	$9,152,123	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	Xcellent Technology Solutions, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$9,115,018	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #89 in FY2025; up 254 since FY2021.
95	Krew Heavy Civil LLC Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$9,077,407	0.2%	Rank history: #39 in FY2021 and not on the FY2023–FY2025 lists; down 56 since FY2021.
96	Chenega Professional & Technical Services LLC Top NAICS codes 541511 Custom Computer Programming Services	$9,023,568	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #85 in FY2024 and not on the FY2025 list; new.
97	Dowl, LLC Top NAICS codes 541330 Engineering Services	$8,991,598	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 278 since FY2021.
98	General Dynamics Mission Systems, Inc. Top NAICS codes 541330 Engineering Services	$8,975,709	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
99	Missouri River Contractors, LLC Top NAICS codes 237310 Highway, Street, and Bridge Construction	$8,974,607	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
100	Snf, Inc. Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 336112 Light Truck and Utility Vehicle Manufacturing 336120 Heavy Duty Truck Manufacturing	$8,929,627	0.2%	Rank history: #89 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.

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 $5.27 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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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