Top 100 Contractors in NAICS 23891: Site Preparation Contractors, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 23891: Site Preparation Contractors, 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 NAICS 23891: Site Preparation Contractors, FY2025.

The top 10 won 43% of NAICS 23891 contract dollars from August 2025 through July 2026

Contract obligations: $192,641,529 Net of deobligations, by contracts coded NAICS 23891 or a code under it
Contractors: 288 Parent companies with an obligation
Largest contractor: Clark Construction LLC $33.7 million, 17.2% 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	17.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
2	Numunu Martinez JV, LLC Top agencies NASA (National Aeronautics and Space Administration)	$7,209,802	3.7%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3	Defenderco LLC Top agencies USDA (Department of Agriculture)	$6,053,676	3.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	Copper Creek LLC Top agencies VA (Department of Veterans Affairs)	$5,998,888	3.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Blue Trident, LLC Top agencies USAF (Department of the Air Force)	$5,678,294	2.9%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #9 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	The Blackledge Group, Inc. Top agencies Army (Department of the Army)	$5,600,100	2.9%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
7	Bhate Environmental Associates, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$5,361,599	2.7%	Rank history: #2 in FY2021, #6 in FY2022, #3 in FY2023, #4 in FY2024 and #35 in FY2025; down 5 since Aug 2024–Jul 2025.
8	Calista Corp Through Brice Integrated LLC Top agencies USAF (Department of the Air Force)	$4,925,458	2.5%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	Byrd Enterprises Unlimited Inc. Top agencies VA (Department of Veterans Affairs)	$4,829,858	2.5%	Rank history: not on the FY2021 list, #39 in FY2022, #6 in FY2023, #17 in FY2024 and #36 in FY2025; up 2 since Aug 2024–Jul 2025.
10	Equip-Co Unlimited of NY LLC Top agencies VA (Department of Veterans Affairs)	$4,345,854	2.2%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, not on the FY2024 list and #7 in FY2025; up 108 since Aug 2024–Jul 2025.
11	JKS Industries LLC Top agencies Navy (Department of the Navy)	$4,100,701	2.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
12	Miwok Construction LLC Top agencies Army (Department of the Army)	$4,047,423	2.1%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13	JD Bravo Co Inc. Top agencies Army (Department of the Army)	$3,718,439	1.9%	Rank history: #10 in FY2021, #22 in FY2022, #16 in FY2023, not on the FY2024 list and #14 in FY2025; up 3 since Aug 2024–Jul 2025.
14	J.a.t. Trucking and Construction Services, LLC Top agencies Army (Department of the Army)	$3,385,795	1.7%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15	Junot Group, LLC Top agencies VA (Department of Veterans Affairs)	$3,102,600	1.6%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
16	Pdo-Hgc JV LLC Top agencies USAF (Department of the Air Force)	$3,073,812	1.6%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and not on the FY2025 list; down 13 since Aug 2024–Jul 2025.
17	Driven Contractors LLC Top agencies Army (Department of the Army)	$2,977,256	1.5%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; up 124 since Aug 2024–Jul 2025.
18	Neuber Environmental Service Inc. Top agencies Army (Department of the Army)	$2,879,875	1.5%	Rank history: not on the FY2021 list, #2 in FY2022, not on the FY2023 list, #2 in FY2024 and #22 in FY2025; down 8 since Aug 2024–Jul 2025.
19	Resource Environmental Services, LLC Top agencies Navy (Department of the Navy)	$2,871,321	1.5%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and not on the FY2025 list; up 16 since Aug 2024–Jul 2025.
20	Koman Integrated Solutions, LLC Top agencies USAF (Department of the Air Force)	$2,606,604	1.3%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, #16 in FY2024 and #38 in FY2025; up 16 since Aug 2024–Jul 2025.
21	Bering Straits Native Corporation 3 awardees, including Paragon Environmental Services, LLC and Stampede Ventures, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$2,590,068	1.3%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	BTS Equipment Unlimited Inc. Top agencies Navy (Department of the Navy)	$2,559,462	1.3%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #48 in FY2025; up 63 since Aug 2024–Jul 2025.
23	Teya Support Services LLC Top agencies USAF (Department of the Air Force)	$2,270,483	1.2%	Rank history: not on the FY2021 list, #72 in FY2022, not on the FY2023 list, #81 in FY2024 and not on the FY2025 list; up 238 since Aug 2024–Jul 2025.
24	Achuti LLC Top agencies Army (Department of the Army)	$1,997,300	1.0%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	Sglc Consulting & Demolition, Inc. Top agencies USAF (Department of the Air Force)	$1,807,314	0.9%	Rank history: #61 in FY2021, not on the FY2022–FY2024 lists and #27 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26	Legacy First Construction, L.l.c Top agencies Army (Department of the Army)	$1,780,291	0.9%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Ark Construction Management LLC Top agencies Commerce (Department of Commerce)	$1,760,277	0.9%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28	BRY Enterprise, LLC Top agencies USAF (Department of the Air Force)	$1,758,373	0.9%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #26 in FY2025; down 6 since Aug 2024–Jul 2025.
29	Easthill Kunj JV, LLC Top agencies Army (Department of the Army)	$1,581,645	0.8%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; down 23 since Aug 2024–Jul 2025.
30	Kikiktagruk Inupiat Corp Through Midnight Sun-Centennial Satku JV, LLC Top agencies Army (Department of the Army)	$1,535,873	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	Owl Helpers Top agencies Army (Department of the Army)	$1,500,560	0.8%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
32	The Aleut Corporation 2 awardees, including Aleut Demolition Services LLC and Aleut Field Services, LLC Top agencies DOI (Department of the Interior) Army (Department of the Army)	$1,452,460	0.7%	Rank history: #60 in FY2021, #99 in FY2022, not on the FY2023–FY2024 lists and #29 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33	Associates Roofing & Construction Inc. Top agencies USAF (Department of the Air Force)	$1,407,975	0.7%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34	All Phase Services, Inc. Top agencies Army (Department of the Army)	$1,405,886	0.7%	Rank history: #54 in FY2021, #33 in FY2022, #52 in FY2023, #60 in FY2024 and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Jakambaga General Contractors Limited Top agencies USAF (Department of the Air Force)	$1,283,668	0.7%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and not on the FY2025 list; up 17 since Aug 2024–Jul 2025.
36	Prism Spectrum Holdings LLC Through Prism Response, LLC Top agencies Army (Department of the Army)	$1,257,683	0.6%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023, #1 in FY2024 and #1 in FY2025; down 35 since Aug 2024–Jul 2025.
37	Target Contractors LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,206,985	0.6%	Rank history: #73 in FY2021, #7 in FY2022, #28 in FY2023, #25 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
38	Southern Gulf Solutions LLC Top agencies Army (Department of the Army)	$1,202,006	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Government of the United States Through Federal Prison Industries, Inc. Top agencies USAF (Department of the Air Force)	$1,159,071	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
40	Kikkawa Co., Ltd. Top agencies Navy (Department of the Navy)	$1,116,713	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
41	Alaska Demolition LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$1,101,892	0.6%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; down 3 since Aug 2024–Jul 2025.
42	Hugh and Associates Inc. Top agencies Army (Department of the Army)	$1,050,850	0.5%	Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023–FY2024 lists and #77 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Boom Concrete Inc. Top agencies USDA (Department of Agriculture)	$990,818	0.5%	Rank history: not on the FY2021–FY2025 lists; up 125 since Aug 2024–Jul 2025.
44	Proficient Constructors Llc. Top agencies Treasury (Department of the Treasury)	$968,204	0.5%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45	Hana Engineers & Consultants LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$964,803	0.5%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023, not on the FY2024 list and #71 in FY2025; up 43 since Aug 2024–Jul 2025.
46	C-A Native Constructors Inc. Top agencies Army (Department of the Army)	$943,219	0.5%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Reagent World Inc. Top agencies Army (Department of the Army)	$943,076	0.5%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, not on the FY2024 list and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
48	Terra Technical Services, LLC Top agencies Army (Department of the Army)	$922,000	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49	Rod Transport Inc. Top agencies Army (Department of the Army)	$898,824	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
50	Geotek Alaska Inc Top agencies Army (Department of the Army)	$884,455	0.5%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 20 since Aug 2024–Jul 2025.
51	Cherokee Nation Red Wing, L.L.C. Through Cherokee CRC LLC Top agencies DOI (Department of the Interior)	$877,458	0.4%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; up 28 since Aug 2024–Jul 2025.
52	Central Environmental Inc. 2 awardees, including C.i. Contractors, Inc. Top agencies Army (Department of the Army)	$865,447	0.4%	Rank history: not on the FY2021–FY2025 lists; up 68 since Aug 2024–Jul 2025.
53	Credere Envirovantage II, LLC Top agencies DOI (Department of the Interior)	$841,394	0.4%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023, #8 in FY2024 and #58 in FY2025; up 13 since Aug 2024–Jul 2025.
54	J.f. Brennan Company, Inc. Top agencies Army (Department of the Army)	$831,692	0.4%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Miami Marine Services, LLC Top agencies USAF (Department of the Air Force)	$762,955	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Todd Bonney Trucking, LLC Top agencies DOI (Department of the Interior)	$758,093	0.4%	Rank history: not on the FY2021–FY2025 lists; up 91 since Aug 2024–Jul 2025.
57	DFW Cad Services LLC Top agencies Treasury (Department of the Treasury)	$709,701	0.4%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
58	TTP Contracting Group, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$668,302	0.3%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, #78 in FY2024 and #60 in FY2025; up 4 since Aug 2024–Jul 2025.
59	Hance Danny Top agencies DOI (Department of the Interior)	$662,800	0.3%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023, not on the FY2024 list and #53 in FY2025; up 140 since Aug 2024–Jul 2025.
60	Ahtna Builders, LLC Top agencies Commerce (Department of Commerce)	$597,824	0.3%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61	Keta Environmental and Infrastructure, LLC Top agencies Army (Department of the Army)	$589,941	0.3%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
62	Omang Technologies and Trading Ltd Top agencies USAF (Department of the Air Force)	$513,640	0.3%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63	Unlimited Supply and Materials, LLC Top agencies Army (Department of the Army)	$511,215	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64	Nair Contracting Group, LLC Top agencies Navy (Department of the Navy)	$496,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; down 46 since Aug 2024–Jul 2025.
65	Cherry Creek Recycling LLC Top agencies Navy (Department of the Navy)	$472,940	0.2%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2023, #7 in FY2024 and not on the FY2025 list; down 60 since Aug 2024–Jul 2025.
66	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$467,476	0.2%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; up 69 since Aug 2024–Jul 2025.
67	Dawson Mcg, Inc. Top agencies Army (Department of the Army)	$456,867	0.2%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68	Alliance Steel Construction, Inc. Top agencies DOI (Department of the Interior)	$456,000	0.2%	Rank history: #31 in FY2021, #34 in FY2022, #89 in FY2023, #9 in FY2024 and #59 in FY2025; down 48 since Aug 2024–Jul 2025.
69	Atlantic Pacific Standard LLC Top agencies USAF (Department of the Air Force)	$450,934	0.2%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and not on the FY2025 list; down 38 since Aug 2024–Jul 2025.
70	Solid Ground Resources, LLC Top agencies USDA (Department of Agriculture)	$412,488	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Delma Construction Company Top agencies DOS (Department of State)	$399,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Fillmore Contracts, LLC Top agencies USDA (Department of Agriculture)	$394,515	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
73	AMG Construction Company, Incorporated Top agencies USAF (Department of the Air Force)	$379,700	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Lockridge FBI LLC Top agencies Army (Department of the Army)	$342,183	0.2%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023 and not on the FY2024–FY2025 lists; up 200 since Aug 2024–Jul 2025.
75	Gulf Coast Solutions LLC Top agencies Navy (Department of the Navy)	$342,117	0.2%	Rank history: not on the FY2021 list, #75 in FY2022, #39 in FY2023, #24 in FY2024 and #49 in FY2025; down 35 since Aug 2024–Jul 2025.
76	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.
77	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 #79 in FY2025; new, not ranked in Aug 2024–Jul 2025.
78	Fedvet Construction Top agencies Navy (Department of the Navy)	$336,409	0.2%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
79	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 #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
80	Blue Trident - CMF JV Top agencies USAF (Department of the Air Force)	$331,572	0.2%	Rank history: #56 in FY2021, #49 in FY2022, #90 in FY2023, not on the FY2024 list and #81 in FY2025; up 76 since Aug 2024–Jul 2025.
81	Great Cruz Bay LLC Top agencies DOJ (Department of Justice)	$329,484	0.2%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; up 181 since Aug 2024–Jul 2025.
82	Danel Holdings Limited Top agencies USAF (Department of the Air Force)	$324,153	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	US Aqua Services LLC Top agencies DOI (Department of the Interior)	$320,000	0.2%	Rank history: not on the FY2021 list, #14 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
84	K&C Contractors, Inc. Top agencies Army (Department of the Army)	$319,414	0.2%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; new, not ranked in Aug 2024–Jul 2025.
85	The NDN Companies Top agencies DOT (Department of Transportation)	$318,962	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86	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 #25 in FY2025; down 56 since Aug 2024–Jul 2025.
87	Covington Contracting, Inc. Top agencies USAF (Department of the Air Force)	$299,999	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	2 Grade, LLC Top agencies DOI (Department of the Interior)	$296,477	0.2%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 137 since Aug 2024–Jul 2025.
89	Shumaker Trucking & Excavating Contractors, Inc. Top agencies USAF (Department of the Air Force)	$295,332	0.2%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; down 36 since Aug 2024–Jul 2025.
90	Sycamore Construction Consultants LLC Top agencies DOI (Department of the Interior)	$291,581	0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
91	Easy Street Gravel Road Repair LLC Top agencies Army (Department of the Army)	$288,245	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	SNC Core JV, LLC Top agencies DOI (Department of the Interior)	$287,130	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
93	North American Dismantling Corp. Top agencies Army (Department of the Army)	$279,048	0.1%	Rank history: not on the FY2021–FY2023 lists, #76 in FY2024 and not on the FY2025 list; down 33 since Aug 2024–Jul 2025.
94	Rymarc Construction Inc. Top agencies Army (Department of the Army)	$275,574	0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Aug 2024–Jul 2025.
95	Boco Contracting & Construction LLC Top agencies VA (Department of Veterans Affairs)	$262,882	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Skagit Aggregates LLC Top agencies Army (Department of the Army)	$254,020	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Alsea Quarries I, LLC Top agencies DOI (Department of the Interior)	$249,200	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 173 since Aug 2024–Jul 2025.
98	DDL Group LLC Top agencies USAF (Department of the Air Force)	$246,488	0.1%	Rank history: not on the FY2021–FY2025 lists; up 52 since Aug 2024–Jul 2025.
99	Nick's Timber Services, Inc. Top agencies DOI (Department of the Interior)	$245,000	0.1%	Rank history: not on the FY2021 list, #95 in FY2022 and not on the FY2023–FY2025 lists; up 4 since Aug 2024–Jul 2025.
100	Lakota Federal, LLC Top agencies Army (Department of the Army)	$237,868	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

Show 75 more

100 of 288 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 23891

Code	Net obligations	Largest contractor
238910 Site Preparation Contractors	$192,641,529	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 $196 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 NAICS 23891 contractors in Aug 2025–Jul 2026?

1. Clark Construction LLC ($33.7M), 2. Numunu Martinez JV, LLC ($7.21M), 3. Defenderco LLC ($6.05M), 4. Copper Creek LLC ($6M), 5. Blue Trident, LLC ($5.68M), 6. The Blackledge Group, Inc. ($5.6M), 7. Bhate Environmental Associates, Inc. ($5.36M), 8. Calista Corp ($4.93M), 9. Byrd Enterprises Unlimited Inc. ($4.83M), 10. Equip-Co Unlimited of NY LLC ($4.35M).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login