Top 100 Contractors in PSC P4: Demolition of Buildings, Aug 2025–Jul 2026

Name: Top 100 Contractors in PSC P4: Demolition of Buildings, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC P4: Demolition of Buildings, FY2025.

The top 10 won 52% of PSC P4 contract dollars from August 2025 through July 2026

Contract obligations: $146,297,530 Net of deobligations, by contracts coded PSC P4 or a code under it
Contractors: 131 Parent companies with an obligation
Largest contractor: Clark Construction LLC $33.7 million, 22.3% of obligations
Data as of: Nov 5, 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	Clark Construction LLC Through Clark Construction Group LLC Top agencies DHS (Department of Homeland Security)	$33,655,500	22.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
2	Amentum Holdings, Inc. 2 awardees, including Ch2M Hill Bwxt West Valley, LLC and Amentum Technology, Inc. Top agencies DOE (Department of Energy) Navy (Department of the Navy)	$7,022,951	4.7%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; down 1 since Aug 2024–Jul 2025.
3	Copper Creek LLC Top agencies VA (Department of Veterans Affairs)	$5,998,888	4.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	The Blackledge Group, Inc. Top agencies Army (Department of the Army)	$5,600,100	3.7%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
5	Nippo Corporation Top agencies USAF (Department of the Air Force)	$5,489,518	3.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
6	Calista Corp Through Brice Integrated LLC Top agencies USAF (Department of the Air Force)	$4,925,458	3.3%	Rank history: #14 in FY2021, not on the FY2022–FY2024 lists and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
7	Equip-Co Unlimited of NY LLC Top agencies VA (Department of Veterans Affairs)	$4,345,854	2.9%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
8	JKS Industries LLC Top agencies Navy (Department of the Navy)	$4,100,701	2.7%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
9	Blue Trident, LLC Top agencies USAF (Department of the Air Force)	$4,007,504	2.7%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #9 in FY2025; new, not ranked in Aug 2024–Jul 2025.
10	Bhate Environmental Associates, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,821,698	2.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
11	LDS Kemron JV 4 LLC Top agencies Army (Department of the Army)	$3,574,239	2.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
12	Pdo-Hgc JV LLC Top agencies USAF (Department of the Air Force)	$3,073,812	2.0%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and not on the FY2025 list; down 8 since Aug 2024–Jul 2025.
13	Defender Contracting & Construction LLC Top agencies USAF (Department of the Air Force)	$2,949,594	2.0%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and not on the FY2025 list; up 74 since Aug 2024–Jul 2025.
14	Resource Environmental Services, LLC Top agencies Navy (Department of the Navy)	$2,871,321	1.9%	Rank history: #80 in FY2021, #100 in FY2022, not on the FY2023 list, #4 in FY2024 and not on the FY2025 list; up 4 since Aug 2024–Jul 2025.
15	Howard W. Pence, Inc. Top agencies Navy (Department of the Navy)	$2,785,826	1.8%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16	BTS Equipment Unlimited Inc. Top agencies Navy (Department of the Navy)	$2,559,462	1.7%	Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #28 in FY2025; up 27 since Aug 2024–Jul 2025.
17	Nihon Meccs Co.,Ltd. Top agencies Navy (Department of the Navy)	$2,346,769	1.6%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; up 38 since Aug 2024–Jul 2025.
18	Teya Support Services LLC Top agencies USAF (Department of the Air Force)	$2,270,483	1.5%	Rank history: not on the FY2021 list, #25 in FY2022, not on the FY2023 list, #41 in FY2024 and #61 in FY2025; up 32 since Aug 2024–Jul 2025.
19	ECC Infrastructure LLC Top agencies Navy (Department of the Navy)	$2,054,947	1.4%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; down 16 since Aug 2024–Jul 2025.
20	Sglc Consulting & Demolition, Inc. Top agencies USAF (Department of the Air Force)	$1,807,314	1.2%	Rank history: #35 in FY2021, not on the FY2022–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Legacy First Construction, L.l.c Top agencies Army (Department of the Army)	$1,780,291	1.2%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Ark Construction Management LLC Top agencies Commerce (Department of Commerce)	$1,760,277	1.2%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	Easthill Kunj JV, LLC Top agencies Army (Department of the Army)	$1,581,645	1.0%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; down 17 since Aug 2024–Jul 2025.
24	Kikiktagruk Inupiat Corp Through Midnight Sun-Centennial Satku JV, LLC Top agencies Army (Department of the Army)	$1,535,873	1.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25	Total Environmental Concepts, Inc. Through Crawford Environmental Services, LLC Top agencies Army (Department of the Army)	$1,517,087	1.0%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #24 in FY2025; unchanged since Aug 2024–Jul 2025.
26	All Phase Services, Inc. Top agencies Army (Department of the Army)	$1,405,886	0.9%	Rank history: #15 in FY2021, not on the FY2022–FY2024 lists and #20 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Crawford Environmental Services, LLC Top agencies Army (Department of the Army)	$1,383,822	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
28	West Coast JV, LLC Top agencies USAF (Department of the Air Force)	$1,321,598	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29	Prism Spectrum Holdings LLC Through Prism Response, LLC Top agencies Army (Department of the Army)	$1,170,818	0.8%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; down 24 since Aug 2024–Jul 2025.
30	Guardian Construction, Inc. Top agencies DOI (Department of the Interior)	$1,149,486	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	Kikkawa Co., Ltd. Top agencies Navy (Department of the Navy)	$1,116,713	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32	Alaska Demolition LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$1,101,892	0.7%	Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #13 in FY2025; down 10 since Aug 2024–Jul 2025.
33	R.g. Carter Cambridge Ltd Top agencies USAF (Department of the Air Force)	$1,092,310	0.7%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34	Suzuki Kensetsu Kogyo Co.,Ltd. Top agencies USAF (Department of the Air Force)	$1,059,408	0.7%	Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Hugh and Associates Inc. Top agencies Army (Department of the Army)	$1,053,829	0.7%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023–FY2024 lists and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	Bering Straits Native Corporation Through Stampede Ventures, Inc. Top agencies Navy (Department of the Navy)	$1,015,227	0.7%	Rank history: not on the FY2021 list, #38 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37	Terra Technical Services, LLC Top agencies Army (Department of the Army)	$922,000	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
38	Andre Toste & Joao Paulino, LDA Top agencies USAF (Department of the Air Force)	$906,870	0.6%	Rank history: #49 in FY2021, not on the FY2022–FY2024 lists and #69 in FY2025; up 31 since Aug 2024–Jul 2025.
39	Itogumi Construction Co.,Ltd. Top agencies USAF (Department of the Air Force)	$871,461	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
40	Credere Envirovantage II, LLC Top agencies DOI (Department of the Interior)	$841,394	0.6%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, #7 in FY2024 and #32 in FY2025; down 4 since Aug 2024–Jul 2025.
41	Benaka, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$840,028	0.6%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
42	Miami Marine Services, LLC Top agencies USAF (Department of the Air Force)	$762,955	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
43	GSE Inc. Top agencies Army (Department of the Army)	$714,737	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
44	Orion Construction, Inc. Top agencies USAF (Department of the Air Force)	$686,308	0.5%	Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; down 30 since Aug 2024–Jul 2025.
45	TTP Contracting Group, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$668,302	0.4%	Rank history: #68 in FY2021, #52 in FY2022, #10 in FY2023, #47 in FY2024 and #35 in FY2025; down 11 since Aug 2024–Jul 2025.
46	Kekolu Contracting, LLC Top agencies USAF (Department of the Air Force)	$579,825	0.4%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #30 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	NC JV LLC Top agencies USAF (Department of the Air Force)	$554,604	0.4%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; new, not ranked in Aug 2024–Jul 2025.
48	Fedvet-Empire LLC Top agencies Army (Department of the Army)	$524,690	0.3%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	Dawson Mcg, Inc. Top agencies Army (Department of the Army)	$456,867	0.3%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	Alliance Steel Construction, Inc. Top agencies DOI (Department of the Interior)	$456,000	0.3%	Rank history: #28 in FY2021, #8 in FY2022, not on the FY2023–FY2024 lists and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
51	The Aleut Corporation Through Aleut Demolition Services LLC Top agencies DOI (Department of the Interior)	$449,122	0.3%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52	A-1 Sheffield Team LLC Top agencies USAF (Department of the Air Force)	$404,148	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
53	Delma Construction Company Top agencies DOS (Department of State)	$399,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54	Fillmore Contracts, LLC Top agencies USDA (Department of Agriculture)	$394,515	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Sandow Construction Inc. Top agencies VA (Department of Veterans Affairs) WHS (DOD Washington Headquarters Service)	$386,181	0.3%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56	AMG Construction Company, Incorporated Top agencies USAF (Department of the Air Force)	$379,700	0.3%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Waste Solutions USA LLC Top agencies USAF (Department of the Air Force)	$338,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	Smnc Solutions-Ames1 Joint Venture, LLC Top agencies Army (Department of the Army)	$337,749	0.2%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
59	Fedvet Construction Top agencies Navy (Department of the Navy)	$336,409	0.2%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
60	Apex Abatement and Demolition LLC Top agencies DOI (Department of the Interior)	$336,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61	Blue Trident - CMF JV Top agencies USAF (Department of the Air Force)	$331,572	0.2%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
62	Target Contractors LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$327,000	0.2%	Rank history: not on the FY2021 list, #7 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
63	M.c. Paulino, Inc. Top agencies USAF (Department of the Air Force)	$316,039	0.2%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; down 46 since Aug 2024–Jul 2025.
64	2 Grade, LLC Top agencies DOI (Department of the Interior)	$296,477	0.2%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; up 31 since Aug 2024–Jul 2025.
65	Shumaker Trucking & Excavating Contractors, Inc. Top agencies USAF (Department of the Air Force)	$295,332	0.2%	Rank history: not on the FY2021 list, #45 in FY2022, #96 in FY2023, not on the FY2024 list and #27 in FY2025; down 36 since Aug 2024–Jul 2025.
66	Gulf Pacific Contracting LLC Top agencies USAF (Department of the Air Force)	$268,500	0.2%	Rank history: #40 in FY2021, not on the FY2022–FY2024 lists and #95 in FY2025; new, not ranked in Aug 2024–Jul 2025.
67	Bauteam Hahn GMBH Top agencies Army (Department of the Army)	$253,668	0.2%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #50 in FY2025; down 26 since Aug 2024–Jul 2025.
68	DDL Group LLC Top agencies USAF (Department of the Air Force)	$246,488	0.2%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69	Lakota Federal, LLC Top agencies Army (Department of the Army)	$237,868	0.2%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	Brantley Construction Services, LLC Top agencies USAF (Department of the Air Force)	$214,717	0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
71	David Construction & Management, Inc. Top agencies DOI (Department of the Interior)	$196,500	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Semper Fidelis Construction & Development LLC Top agencies USAF (Department of the Air Force)	$195,270	0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
73	Acty Co., Ltd. Top agencies USAF (Department of the Air Force)	$194,098	0.1%	Rank history: not on the FY2021 list, #12 in FY2022, not on the FY2023–FY2024 lists and #53 in FY2025; new, not ranked in Aug 2024–Jul 2025.
74	Mib Enterprises, Inc. Top agencies DOI (Department of the Interior)	$193,536	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
75	Leisnoi Professional Services LLC Top agencies GSA (General Services Administration)	$184,133	0.1%	Rank history: not on the FY2021 list, #20 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; up 21 since Aug 2024–Jul 2025.
76	M Jolma Inc. Top agencies USDA (Department of Agriculture)	$171,095	0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77	Lacreek Development Corp Top agencies HHS (Department of Health and Human Services)	$155,000	0.1%	Rank history: #65 in FY2021, not on the FY2022–FY2024 lists and #97 in FY2025; up 12 since Aug 2024–Jul 2025.
78	DMS Contracting Inc Top agencies USAF (Department of the Air Force)	$147,014	0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #73 in FY2025; new, not ranked in Aug 2024–Jul 2025.
79	JVR LLC Top agencies USAF (Department of the Air Force)	$142,680	0.1%	Rank history: not on the FY2021 list, #10 in FY2022, not on the FY2023 list, #18 in FY2024 and #64 in FY2025; down 66 since Aug 2024–Jul 2025.
80	Aloha Construction Services Inc. Top agencies Navy (Department of the Navy)	$132,435	0.1%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #70 in FY2025; up 4 since Aug 2024–Jul 2025.
81	Inussuk A / S Top agencies USAF (Department of the Air Force)	$131,513	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Gana-A' Yoo, Limited Through Yukon Management, LLC Top agencies DOI (Department of the Interior)	$130,206	0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; up 27 since Aug 2024–Jul 2025.
83	Alpha Contractors Group Inc. Top agencies USAF (Department of the Air Force)	$127,150	0.1%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; down 59 since Aug 2024–Jul 2025.
84	Airquest Environmental, Inc. Top agencies Army (Department of the Army)	$117,334	0.1%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
85	Access Communications Group, LLC Top agencies USAF (Department of the Air Force)	$113,272	0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
86	True Mechanical Solutions, LLC Top agencies USDA (Department of Agriculture)	$112,432	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	Firelake Construction Inc. Top agencies USDA (Department of Agriculture)	$108,083	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Ritz Construction Inc. Top agencies Navy (Department of the Navy)	$106,304	0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and not on the FY2025 list; down 43 since Aug 2024–Jul 2025.
89	Remi Companies LLC Top agencies DOI (Department of the Interior)	$100,425	0.1%	Rank history: not on the FY2021 list, #93 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90	National Native American Construction, Inc. Top agencies USAF (Department of the Air Force)	$91,978	0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
91	Tapershaper LLC Top agencies USAF (Department of the Air Force)	$80,175	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	Technical & Solutions Panama, S.A. Top agencies Army (Department of the Army)	$73,380	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Tatco LLC Top agencies DOI (Department of the Interior)	$64,392	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	W.m. Dunn Construction, LLC Top agencies DOI (Department of the Interior)	$58,500	<0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
95	Arabic Interpreters LLC Top agencies Army (Department of the Army)	$57,888	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	M&H United LLC Top agencies DOI (Department of the Interior)	$56,500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Gold Wave Inc. Top agencies DOI (Department of the Interior)	$54,875	<0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	J & S Trucking I, Inc. Top agencies USDA (Department of Agriculture)	$53,350	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Paradigm Mechanical Corp. Top agencies Navy (Department of the Navy)	$50,410	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	QBS Inc. Top agencies Navy (Department of the Navy)	$49,085	<0.1%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #92 in FY2025; down 84 since Aug 2024–Jul 2025.

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100 of 131 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC P4

Code	Net obligations	Largest contractor
P400 Demolition of Buildings	$146,297,530	Clark Construction LLC

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 $151 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Aug 2024–Jul 2025. "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.
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 PSC P4 contractors in Aug 2025–Jul 2026?

1. Clark Construction LLC ($33.7M), 2. Amentum Holdings, Inc. ($7.02M), 3. Copper Creek LLC ($6M), 4. The Blackledge Group, Inc. ($5.6M), 5. Nippo Corporation ($5.49M), 6. Calista Corp ($4.93M), 7. Equip-Co Unlimited of NY LLC ($4.35M), 8. JKS Industries LLC ($4.1M), 9. Blue Trident, LLC ($4.01M), 10. Bhate Environmental Associates, Inc. ($3.82M).

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