Top 68 Contractors in PSC Z1DB: Maintenance of Laboratories and Clinics, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Valiant Integrated Services LLC Through Valiant Government Services LLC Top agencies Army (Department of the Army)	$23,303,150	30.7%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	CAS FSE JV II LLC Top agencies USDA (Department of Agriculture)	$11,608,728	15.3%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #3 in FY2025; up 1 since Aug 2024–Jul 2025.
3	C Martin Co Inc. Top agencies USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$9,010,083	11.9%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; down 1 since Aug 2024–Jul 2025.
4	Amentum Holdings, Inc. 2 awardees, including URS Federal Services International, Inc. and Amentum Technology, Inc. Top agencies DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy)	$7,137,723	9.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Talion Construction LLC Top agencies VA (Department of Veterans Affairs)	$5,552,252	7.3%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	J & J Maintenance Inc. Top agencies Army (Department of the Army)	$2,173,865	2.9%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #6 in FY2025; down 1 since Aug 2024–Jul 2025.
7	Aaecon General Contracting LLC Top agencies VA (Department of Veterans Affairs)	$1,618,478	2.1%	Rank history: not on the FY2021 list, #3 in FY2022, #6 in FY2023, #13 in FY2024 and not on the FY2025 list; up 2 since Aug 2024–Jul 2025.
8	Ironclad Services Inc Top agencies VA (Department of Veterans Affairs)	$1,277,626	1.7%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	Lavastida Development Group, L.l.c Top agencies EPA (Environmental Protection Agency)	$1,266,946	1.7%	Rank history: #12 in FY2021, #9 in FY2022, #8 in FY2023, #9 in FY2024 and #7 in FY2025; down 3 since Aug 2024–Jul 2025.
10	J'S Associates, LLC Top agencies USDA (Department of Agriculture)	$946,036	1.2%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11	2A LLC Top agencies USDA (Department of Agriculture)	$901,309	1.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
12	R & W Contractors Inc. Top agencies USAF (Department of the Air Force)	$801,419	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
13	Industrial Maintenance Services Inc. Top agencies VA (Department of Veterans Affairs)	$778,674	1.0%	Rank history: not on the FY2021 list, #2 in FY2022, #34 in FY2023, #17 in FY2024 and #9 in FY2025; down 6 since Aug 2024–Jul 2025.
14	Central Texas Express Metalwork LLC Through Tepa Express Contracting, LLC Top agencies USDA (Department of Agriculture)	$663,978	0.9%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15	Triple Z Distribution LLC Top agencies USDA (Department of Agriculture)	$565,000	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
16	Media Plumbing & Heating Inc. Top agencies USDA (Department of Agriculture)	$483,000	0.6%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #18 in FY2024 and #15 in FY2025; new, not ranked in Aug 2024–Jul 2025.
17	Innovative Consulting & Management Services, LLC Top agencies USDA (Department of Agriculture)	$460,384	0.6%	Rank history: not on the FY2021 list, #7 in FY2022, #21 in FY2023, #16 in FY2024 and #14 in FY2025; down 1 since Aug 2024–Jul 2025.
18	Concord Construction, LLC Top agencies USDA (Department of Agriculture)	$381,820	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19	Red Bison Services, LLC Top agencies USDA (Department of Agriculture)	$361,330	0.5%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023, #10 in FY2024 and #10 in FY2025; down 11 since Aug 2024–Jul 2025.
20	FBI Construction Top agencies USDA (Department of Agriculture)	$297,113	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
21	Sandhurst-Aec, LLC Top agencies Army (Department of the Army)	$236,616	0.3%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
22	Ametek Inc. Through Cameca Instruments, Inc. Top agencies Commerce (Department of Commerce)	$220,170	0.3%	Rank history: #21 in FY2021, #16 in FY2022, #28 in FY2023, #31 in FY2024 and not on the FY2025 list; up 7 since Aug 2024–Jul 2025.
23	Asml US LLC Top agencies Commerce (Department of Commerce)	$174,877	0.2%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; down 5 since Aug 2024–Jul 2025.
24	Mirador Enterprises, Inc. Top agencies Army (Department of the Army)	$152,184	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25	Elevated Technologies Services, LLC Top agencies USDA (Department of Agriculture)	$149,355	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
26	Heritage Services LLC Top agencies USDA (Department of Agriculture)	$148,985	0.2%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #20 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Kdbs Group LLC Top agencies USDA (Department of Agriculture)	$124,177	0.2%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28	Pergravis Mission Critical Construction, LLC Top agencies USDA (Department of Agriculture)	$121,760	0.2%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
29	Tyco Fire Products LP Through Johnson Controls, Inc. Top agencies USDA (Department of Agriculture)	$117,887	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	Jaxon Construction Inc Top agencies USDA (Department of Agriculture)	$117,680	0.2%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
31	Bhpe LLC Top agencies HHS (Department of Health and Human Services)	$114,900	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32	Negative 0Ne-Eighty Cryogenic Solutions LLC Top agencies Commerce (Department of Commerce)	$110,951	0.1%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33	Sunset Electro Services Limited Top agencies DOS (Department of State)	$107,473	0.1%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34	Ahtna Infrastructure & Technologies LLC Top agencies EPA (Environmental Protection Agency)	$106,821	0.1%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; up 2 since Aug 2024–Jul 2025.
35	Sentinel Builders, LLC Top agencies VA (Department of Veterans Affairs)	$103,652	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36	MFS Construction LLC Top agencies USDA (Department of Agriculture)	$96,180	0.1%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023, #47 in FY2024 and #24 in FY2025; down 10 since Aug 2024–Jul 2025.
37	Mid-American Elevator Company, Inc. Top agencies Army (Department of the Army)	$90,000	0.1%	Rank history: not on the FY2021 list, #22 in FY2022, not on the FY2023 list, #25 in FY2024 and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38	THD Contracting Service LLC Top agencies USDA (Department of Agriculture)	$89,265	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Smnc Properties, LLC Top agencies Commerce (Department of Commerce)	$88,324	0.1%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	The Building People LLC Top agencies USDA (Department of Agriculture)	$82,486	0.1%	Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; down 8 since Aug 2024–Jul 2025.
41	Hamilton Company Top agencies Commerce (Department of Commerce)	$81,420	0.1%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #30 in FY2025; down 1 since Aug 2024–Jul 2025.
42	Crutcho Creek Farms LLC Top agencies HHS (Department of Health and Human Services)	$76,704	0.1%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; down 32 since Aug 2024–Jul 2025.
43	Sanken-Witco JV Through Witco Industries Ltd. Top agencies USAF (Department of the Air Force)	$69,114	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
44	Mill Creek Firelake JV LLC Top agencies USDA (Department of Agriculture)	$69,062	0.1%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; down 40 since Aug 2024–Jul 2025.
45	Dekan Corporation Top agencies USDA (Department of Agriculture)	$63,870	0.1%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; new, not ranked in Aug 2024–Jul 2025.
46	Riomar Group Ventures, Inc. Top agencies Commerce (Department of Commerce)	$50,000	0.1%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #35 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Bargreen-Ellingson Inc. Top agencies USDA (Department of Agriculture)	$49,266	0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
48	Thermo Fisher Scientific Inc. Through FEI Company Top agencies Commerce (Department of Commerce)	$46,775	0.1%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	Total Solution LLC Top agencies USDA (Department of Agriculture)	$44,698	0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	Bio-Active Company Limited Top agencies Army (Department of the Army)	$42,645	0.1%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
51	Pueblo Mechanical and Controls, LLC Top agencies USDA (Department of Agriculture)	$39,158	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Xleagle LLC Top agencies Commerce (Department of Commerce)	$31,450	<0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
53	Ho-Chunk, Inc. Through Flatwater Professional Services Company Top agencies HHS (Department of Health and Human Services)	$29,619	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54	Malvern Panalytical Inc. Top agencies Commerce (Department of Commerce)	$28,117	<0.1%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #45 in FY2025; down 13 since Aug 2024–Jul 2025.
55	Smith Design & Build LLC Top agencies USDA (Department of Agriculture)	$25,962	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Oxford Instruments America, Inc. Top agencies Commerce (Department of Commerce)	$24,891	<0.1%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #47 in FY2025; down 12 since Aug 2024–Jul 2025.
57	Thermo Fisher Scientific (Thailand) Co., Ltd. Top agencies Army (Department of the Army)	$24,352	<0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, #46 in FY2024 and #50 in FY2025; down 27 since Aug 2024–Jul 2025.
58	Sieverding Construction, Inc. Top agencies USDA (Department of Agriculture)	$22,322	<0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 34 since Aug 2024–Jul 2025.
59	Red and Blue Cleaning Services LLC Top agencies USDA (Department of Agriculture)	$18,350	<0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Ettm JV LLC Top agencies USDA (Department of Agriculture)	$18,107	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	Aktarius LLC Top agencies EPA (Environmental Protection Agency)	$17,947	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Water Filtration of New England, Inc. Top agencies Army (Department of the Army)	$17,220	<0.1%	Rank history: not on the FY2021 list, #36 in FY2022, not on the FY2023 list, #71 in FY2024 and #43 in FY2025; down 13 since Aug 2024–Jul 2025.
63	Rescue One Training for Life Inc. Top agencies Commerce (Department of Commerce)	$13,700	<0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Aug 2024–Jul 2025.
64	Getinge USA Sales, LLC Top agencies Commerce (Department of Commerce)	$13,061	<0.1%	Rank history: #81 in FY2021, #70 in FY2022, not on the FY2023 list, #78 in FY2024 and #60 in FY2025; down 7 since Aug 2024–Jul 2025.
65	Brothers Mechanical Services LLC Top agencies HHS (Department of Health and Human Services)	$11,868	<0.1%	Rank history: #26 in FY2021, #18 in FY2022, not on the FY2023–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Cenmed Enterprises Inc. Top agencies HHS (Department of Health and Human Services)	$10,560	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022, #64 in FY2023, #81 in FY2024 and #63 in FY2025; down 7 since Aug 2024–Jul 2025.
67	ENV Services Inc. Top agencies Commerce (Department of Commerce)	$5,123	<0.1%	Rank history: #92 in FY2021, #75 in FY2022, #68 in FY2023, #88 in FY2024 and #65 in FY2025; down 6 since Aug 2024–Jul 2025.
68	Timbos Construction Inc. Top agencies USDA (Department of Agriculture)	$4,800	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

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 $76 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