Top 100 Contractors in NAICS 23821: Electrical Contractors and Other Wiring Installation Contractors, FY2021

Name: Top 100 Contractors in NAICS 23821: Electrical Contractors and Other Wiring Installation Contractors, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 44% of FY2021 NAICS 23821 contract dollars

Contract obligations: $791,705,129 Net of deobligations, by contracts coded NAICS 23821 or a code under it
Contractors: 1,561 Parent companies with an obligation
Largest contractor: M.c. Dean, Inc. $159 million, 18.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	M.c. Dean, Inc. Top agencies Army (Department of the Army) Smithsonian (Smithsonian Institution)	$159,339,169	18.5%	Rank history: #5 in FY2022, #4 in FY2023, #20 in FY2024 and #6 in FY2025; up 3 since FY2020.
2	Xator LLC Top agencies DOS (Department of State)	$94,979,409	11.0%	Rank history: #1 in FY2022, #1 in FY2023, #6 in FY2024 and not on the FY2025 list; down 1 since FY2020.
3	WSP USA Solutions Inc. Top agencies Army (Department of the Army)	$45,666,230	5.3%	Rank history: #2 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
4	Wells Global, LLC Top agencies DOT (Department of Transportation)	$17,642,109	2.0%	Rank history: #3 in FY2022, #2 in FY2023, #4 in FY2024 and #3 in FY2025; down 1 since FY2020.
5	Innovative Support Solutions, Inc. Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration) Army (Department of the Army)	$13,106,034	1.5%	Rank history: not on the FY2022 list, #54 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
6	T1 Construction LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$12,766,544	1.5%	Rank history: not on the FY2022–FY2025 lists; up 325 since FY2020.
7	Cusa Consulting LLC Top agencies DOT (Department of Transportation)	$8,722,924	1.0%	Rank history: #10 in FY2022, #5 in FY2023, #3 in FY2024 and #16 in FY2025; down 1 since FY2020.
8	Spectrum Electrical Services, Inc. Top agencies DOS (Department of State)	$8,586,161	1.0%	Rank history: #32 in FY2022, #21 in FY2023, #43 in FY2024 and not on the FY2025 list; up 34 since FY2020.
9	Louis Berger U.S. Inc. Through Louis Berger Power, LLC Top agencies Army (Department of the Army)	$8,516,741	1.0%	Rank history: #27 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
10	CFE Distribucion, E.p.s. 3 awardees, including CFE Distribución, E.p.s. Top agencies DOS (Department of State)	$7,225,645	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
11	Nova Group Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$6,376,552	0.7%	Rank history: not on the FY2022–FY2025 lists; up 36 since FY2020.
12	Second Avenue Contractors, LLC Top agencies DOJ (Department of Justice)	$5,690,000	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Sentinel Power Services, LLC Top agencies DOT (Department of Transportation)	$5,127,941	0.6%	Rank history: #6 in FY2022, #14 in FY2023, #9 in FY2024 and #8 in FY2025; down 5 since FY2020.
14	Engineering Services Int'l, LLC Top agencies DOJ (Department of Justice)	$5,000,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	The Povolny Group Inc. Top agencies VA (Department of Veterans Affairs)	$4,915,689	0.6%	Rank history: not on the FY2022 list, #92 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
16	Pick Electric, Inc. Top agencies Army (Department of the Army)	$4,760,129	0.6%	Rank history: #45 in FY2022, not on the FY2023–FY2024 lists and #48 in FY2025; down 1 since FY2020.
17	KIK Technologies LLC Top agencies DOT (Department of Transportation)	$4,759,478	0.6%	Rank history: #63 in FY2022, #31 in FY2023, #21 in FY2024 and #20 in FY2025; up 74 since FY2020.
18	Tanadgusix Corporation 2 awardees, including TDX Global Solutions, LLC and TDX Power Services LLC Top agencies Army (Department of the Army) DOI (Department of the Interior)	$4,744,624	0.6%	Rank history: #24 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; up 217 since FY2020.
19	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$4,509,013	0.5%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; up 375 since FY2020.
20	Handuk Iron-Mine & Construction Co. Ltd Top agencies Army (Department of the Army)	$4,322,948	0.5%	Rank history: #22 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
21	CE Power Engineered Services LLC Through Reuter & Hanney, Inc. Top agencies Treasury (Department of the Treasury)	$4,264,283	0.5%	Rank history: not on the FY2022–FY2025 lists; up 38 since FY2020.
22	Afci-Cci JV One LLC Top agencies VA (Department of Veterans Affairs)	$4,259,000	0.5%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
23	Freedom Contracting Group, LLC Top agencies VA (Department of Veterans Affairs)	$4,258,378	0.5%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
24	Brican, Inc. Top agencies GSA (General Services Administration)	$3,932,978	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Koontz Electric Company, Incorporated Top agencies Army (Department of the Army)	$3,914,828	0.5%	Rank history: not on the FY2022–FY2023 lists, #64 in FY2024 and #18 in FY2025; up 174 since FY2020.
26	Sun Construction Services Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) GSA (General Services Administration)	$3,730,141	0.4%	Rank history: #81 in FY2022, #47 in FY2023, #59 in FY2024 and #71 in FY2025; down 6 since FY2020.
27	Midwest Electrical Construction Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$3,729,643	0.4%	Rank history: #67 in FY2022, #56 in FY2023, #16 in FY2024 and #54 in FY2025; up 394 since FY2020.
28	B & D Electric, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$3,716,287	0.4%	Rank history: #70 in FY2022, #19 in FY2023, #17 in FY2024 and #17 in FY2025; down 10 since FY2020.
29	United Technologies, LLC Top agencies Army (Department of the Army)	$3,656,390	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Indigenous Technologies, LLC Top agencies Army (Department of the Army)	$3,607,625	0.4%	Rank history: not on the FY2022–FY2025 lists; up 146 since FY2020.
31	Planate-Argo Federal Services Joint Venture LLC Top agencies Navy (Department of the Navy)	$3,559,501	0.4%	Rank history: #17 in FY2022, #51 in FY2023, #29 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
32	Cardinal Marine Group Inc. Top agencies Army (Department of the Army)	$3,523,171	0.4%	Rank history: not on the FY2022 list, #74 in FY2023 and not on the FY2024–FY2025 lists; up 127 since FY2020.
33	Diamond Security, Inc. Top agencies Treasury (Department of the Treasury)	$3,509,313	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Colorado Standby, LLC Top agencies DOS (Department of State)	$3,509,001	0.4%	Rank history: not on the FY2022–FY2023 lists, #53 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
35	DTH Corporation Top agencies USAF (Department of the Air Force)	$3,423,257	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Electri-Comm Inc. Top agencies VA (Department of Veterans Affairs)	$3,393,731	0.4%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
37	Lowder Electric and Construction Corp Top agencies VA (Department of Veterans Affairs)	$3,359,750	0.4%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
38	Quad J Inc. Top agencies DOT (Department of Transportation)	$3,353,454	0.4%	Rank history: #19 in FY2022, #36 in FY2023, #8 in FY2024 and #27 in FY2025; down 22 since FY2020.
39	Richard Group LLC Top agencies VA (Department of Veterans Affairs)	$3,329,814	0.4%	Rank history: not on the FY2022–FY2025 lists; up 91 since FY2020.
40	G2I LLC Top agencies Army (Department of the Army)	$3,299,860	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	RJS Construction Inc. 2 awardees Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$3,169,717	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	Raad Construction Group LLC Top agencies DOI (Department of the Interior)	$3,145,150	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Dap Construction Management LLC Top agencies USAF (Department of the Air Force)	$2,944,667	0.3%	Rank history: not on the FY2022–FY2025 lists; up 383 since FY2020.
44	Hoolaulima Government Solutions, LLC Top agencies Army (Department of the Army)	$2,583,072	0.3%	Rank history: not on the FY2022–FY2025 lists; up 358 since FY2020.
45	First Street Contractors LLC Top agencies DOJ (Department of Justice)	$2,342,185	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Puyenpa Services, LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$2,320,340	0.3%	Rank history: #71 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; down 15 since FY2020.
47	3Links Technologies, Inc. Top agencies SSA (Social Security Administration)	$2,312,632	0.3%	Rank history: #76 in FY2022, #71 in FY2023, #74 in FY2024 and #51 in FY2025; up 19 since FY2020.
48	Twins Roofing, Incorporated Through Twins General Contractors, Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force)	$2,304,440	0.3%	Rank history: not on the FY2022–FY2025 lists; up 195 since FY2020.
49	RX3 Communications Inc. Top agencies DOI (Department of the Interior)	$2,301,977	0.3%	Rank history: not on the FY2022–FY2024 lists and #32 in FY2025; up 8 since FY2020.
50	Peter Kiewit Sons', Inc. Through Mass. Electric Construction Co. Top agencies Army (Department of the Army)	$2,286,599	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Es Squared, LLC Top agencies DHS (Department of Homeland Security)	$2,281,675	0.3%	Rank history: not on the FY2022–FY2025 lists; up 57 since FY2020.
52	Ljbco Group LLC Top agencies VA (Department of Veterans Affairs)	$2,235,000	0.3%	Rank history: not on the FY2022–FY2025 lists; up 123 since FY2020.
53	Schneider Electric Buildings Americas Inc. 7 awardees, including Schneider Electric It Mission Critical Services, Inc., Asco Power Services Inc. and Schneider Electric Federal, Inc. Top agencies Treasury (Department of the Treasury) DOS (Department of State) VA (Department of Veterans Affairs)	$2,222,320	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	Asps LLC Top agencies Army (Department of the Army)	$2,221,076	0.3%	Rank history: not on the FY2022–FY2025 lists; up 213 since FY2020.
55	Microhealth LLC Top agencies Army (Department of the Army)	$2,214,333	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Kunj Construction Corporation Top agencies Army (Department of the Army)	$2,203,401	0.3%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
57	Mac Gc-Electric, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) IBWC (International Boundary and Water Commission U.S.-Mexico)	$2,168,384	0.3%	Rank history: #96 in FY2022, #72 in FY2023, not on the FY2024 list and #68 in FY2025; new, not ranked in FY2020.
58	The Centurion Group, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$2,140,670	0.2%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 66 since FY2020.
59	Knight Const. & Supply, Inc. Top agencies Army (Department of the Army)	$2,131,356	0.2%	Rank history: not on the FY2022–FY2025 lists; up 186 since FY2020.
60	D7, LLC Top agencies Army (Department of the Army)	$2,112,797	0.2%	Rank history: #59 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
61	Reliance Construction Management Company Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$2,099,672	0.2%	Rank history: not on the FY2022–FY2025 lists; up 28 since FY2020.
62	General and Mechanical Services, LLC Top agencies DOL (Department of Labor) DMA (Defense Media Activity) DOI (Department of the Interior)	$2,090,259	0.2%	Rank history: not on the FY2022–FY2025 lists; up 40 since FY2020.
63	Winn-Marion, Inc. Top agencies DOI (Department of the Interior)	$2,046,723	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Pacificmark Construction Corp Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security)	$2,012,361	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Silver Lake KGC JV, LLC Top agencies USAF (Department of the Air Force)	$1,922,959	0.2%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
66	RBT Electric Inc. Top agencies USAF (Department of the Air Force)	$1,859,681	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Chickasaw Nation Through CNI Advantage, LLC Top agencies DOT (Department of Transportation)	$1,849,170	0.2%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
68	Proven Techniques Applied Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,841,359	0.2%	Rank history: not on the FY2022–FY2025 lists; up 39 since FY2020.
69	General Dynamics Corporation Through General Dynamics One Source LLC Top agencies DHS (Department of Homeland Security)	$1,838,598	0.2%	Rank history: not on the FY2022–FY2023 lists, #94 in FY2024 and #2 in FY2025; down 64 since FY2020.
70	Eaton Corporation 6 awardees Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) Commerce (Department of Commerce)	$1,829,904	0.2%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; up 44 since FY2020.
71	CCI Electrical Services LLC Top agencies USAF (Department of the Air Force)	$1,789,560	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Lead Builders Inc. Top agencies USAF (Department of the Air Force)	$1,759,184	0.2%	Rank history: not on the FY2022–FY2025 lists; down 45 since FY2020.
73	MX Holdings US, Inc. 2 awardees, including Firetrol Protection Systems, Inc. and Cosco Fire Protection, Inc. Top agencies Navy (Department of the Navy) Treasury (Department of the Treasury)	$1,754,470	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Duwright Construction Inc. Top agencies Navy (Department of the Navy)	$1,730,689	0.2%	Rank history: not on the FY2022–FY2024 lists and #56 in FY2025; up 189 since FY2020.
75	AE Solutions LLC Top agencies DLA (Defense Logistics Agency)	$1,690,769	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	C.n.s. Communications, LLC Top agencies DOT (Department of Transportation)	$1,651,326	0.2%	Rank history: #14 in FY2022, #15 in FY2023, #19 in FY2024 and #49 in FY2025; down 38 since FY2020.
77	Control & Equipment Co of El Paso, Inc. Top agencies USAF (Department of the Air Force)	$1,649,712	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Red River Technology LLC Top agencies VA (Department of Veterans Affairs)	$1,627,507	0.2%	Rank history: not on the FY2022–FY2025 lists; up 287 since FY2020.
79	Bundesministerium FUR Umwelt Naturschutz UND Reaktorsicherheit Through Bundesministerium FÜR Umwelt, Naturschutz UND Reaktorsicherheit Top agencies Army (Department of the Army)	$1,617,152	0.2%	Rank history: not on the FY2022–FY2025 lists; down 42 since FY2020.
80	Remedy Technological Services, LP Top agencies Army (Department of the Army)	$1,590,851	0.2%	Rank history: #89 in FY2022, #99 in FY2023, #89 in FY2024 and #73 in FY2025; down 19 since FY2020.
81	Ifc, International Fire Control S.A. Top agencies Army (Department of the Army)	$1,555,291	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Sussex Rural Electric Cooperative Top agencies Army (Department of the Army)	$1,533,061	0.2%	Rank history: not on the FY2022 list, #75 in FY2023, #44 in FY2024 and #77 in FY2025; up 19 since FY2020.
83	Mickan Generalbaugesellschaft Amberg MBH & Co. KG Top agencies Army (Department of the Army)	$1,519,454	0.2%	Rank history: not on the FY2022 list, #67 in FY2023 and not on the FY2024–FY2025 lists; down 20 since FY2020.
84	JE Systems Inc. Top agencies GSA (General Services Administration) DOE (Department of Energy)	$1,513,707	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Ruprecht Construction Inc. Top agencies USAF (Department of the Air Force)	$1,488,241	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Welch Companies Inc. Top agencies Army (Department of the Army) GSA (General Services Administration) USAF (Department of the Air Force)	$1,476,202	0.2%	Rank history: not on the FY2022–FY2025 lists; up 75 since FY2020.
87	Tenax Technologies LLC Top agencies Army (Department of the Army)	$1,463,904	0.2%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
88	MIK Construction Inc. Top agencies DOJ (Department of Justice)	$1,460,300	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Ukpeagvik Inupiat Corpor Through Bowhead Operations & Maintenance Solutions LLC Top agencies USAF (Department of the Air Force)	$1,455,051	0.2%	Rank history: not on the FY2022–FY2025 lists; up 68 since FY2020.
90	Ready Services, LLC Top agencies GSA (General Services Administration)	$1,418,968	0.2%	Rank history: #58 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
91	Trane U.S. Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$1,362,634	0.2%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
92	Power Pro Plus Inc. 2 awardees Top agencies Navy (Department of the Navy)	$1,357,136	0.2%	Rank history: not on the FY2022–FY2025 lists; down 78 since FY2020.
93	Urban Electric, Inc. Top agencies DOT (Department of Transportation)	$1,346,133	0.2%	Rank history: #16 in FY2022, #18 in FY2023, #31 in FY2024 and #52 in FY2025; down 72 since FY2020.
94	DFW Cad Services LLC Top agencies Navy (Department of the Navy)	$1,323,000	0.2%	Rank history: not on the FY2022 list, #55 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
95	Bering Straits Native Corporation Through Stampede Ventures, Inc. Top agencies DHS (Department of Homeland Security)	$1,318,112	0.2%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; down 86 since FY2020.
96	Commercial Facilities Management Inc. Top agencies GSA (General Services Administration)	$1,315,580	0.2%	Rank history: #55 in FY2022, #35 in FY2023, #32 in FY2024 and not on the FY2025 list; up 1 since FY2020.
97	Capex Construction LLC Top agencies GSA (General Services Administration)	$1,315,472	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Ark Construction Management LLC Top agencies Navy (Department of the Navy)	$1,287,183	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Ricardo Perez S.a. Through Olsson Industrial Electric, Inc. Top agencies Army (Department of the Army)	$1,280,617	0.1%	Rank history: #11 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
100	MDU Resources Group, Inc. 3 awardees, including OEG Inc. and E.s.i., Inc. Top agencies DOS (Department of State) USAF (Department of the Air Force)	$1,271,974	0.1%	Rank history: not on the FY2022 list, #82 in FY2023 and not on the FY2024–FY2025 lists; down 40 since FY2020.

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100 of 1,561 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 23821

Code	Net obligations	Largest contractor
238210 Electrical Contractors and Other Wiring Installation Contractors	$791,705,129	M.c. Dean, Inc.

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 $861 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 NAICS 23821 contractors in FY2021?

1. M.c. Dean, Inc. ($159M), 2. Xator LLC ($95M), 3. WSP USA Solutions Inc. ($45.7M), 4. Wells Global, LLC ($17.6M), 5. Innovative Support Solutions, Inc. ($13.1M), 6. T1 Construction LLC ($12.8M), 7. Cusa Consulting LLC ($8.72M), 8. Spectrum Electrical Services, Inc. ($8.59M), 9. Louis Berger U.S. Inc. ($8.52M), 10. CFE Distribucion, E.p.s. ($7.23M).

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