Top 29 Contractors in PSC Z2KZ: Repair or Alteration of Other Conservation and Development Facilities, Jul 2025–Jun 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Siemens Corporation Through Siemens Government Technologies Inc. Top agencies Navy (Department of the Navy)	$33,830,301	28.1%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2024 and #6 in FY2025; up 4 since Jul 2024–Jun 2025.
2	Ameresco Inc. Top agencies Navy (Department of the Navy)	$25,990,813	21.6%	Rank history: #13 in FY2021, #7 in FY2022, #3 in FY2024 and #1 in FY2025; down 1 since Jul 2024–Jun 2025.
3	Noresco, LLC Top agencies Navy (Department of the Navy)	$21,705,304	18.1%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
4	Larison-Reyes Joint Venture Top agencies Army (Department of the Army)	$14,518,100	12.1%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; new, not ranked in Jul 2024–Jun 2025.
5	Eagle Eye Electric LLC Top agencies Army (Department of the Army)	$8,564,668	7.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
6	MDU Resources Group, Inc. Through Connolly-Pacific Co. Top agencies Army (Department of the Army)	$6,830,360	5.7%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; new, not ranked in Jul 2024–Jun 2025.
7	Khap'o Construction Services Top agencies Army (Department of the Army)	$5,171,507	4.3%	Rank history: not on the FY2021 list, #9 in FY2022, #21 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
8	SD Resources Inc. Top agencies Army (Department of the Army)	$817,621	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
9	Better By Design LLC Top agencies Army (Department of the Army)	$811,174	0.7%	Rank history: #28 in FY2021, not on the FY2022–FY2024 lists and #8 in FY2025; new, not ranked in Jul 2024–Jun 2025.
10	Chugach Solutions Enterprise, LLC Top agencies DOI (Department of the Interior)	$407,516	0.3%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Jul 2024–Jun 2025.
11	Centerra Integrated Services, LLC Top agencies Navy (Department of the Navy)	$364,668	0.3%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12	Siemens Aktiengesellschaft Through Siemens Government Technologies Inc. Top agencies Navy (Department of the Navy)	$232,462	0.2%	Rank history: #2 in FY2021, #3 in FY2022, #2 in FY2024 and #3 in FY2025; down 10 since Jul 2024–Jun 2025.
13	Rand Enterprises, Inc. Top agencies Navy (Department of the Navy)	$191,385	0.2%	Rank history: #7 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
14	The Spruce Valley Corporation Top agencies DOI (Department of the Interior)	$107,226	0.1%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Jul 2024–Jun 2025.
15	Total Solution LLC Top agencies DOI (Department of the Interior)	$64,782	0.1%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Jul 2024–Jun 2025.
16	LP Contracting LLC Top agencies DOI (Department of the Interior)	$56,565	<0.1%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Jul 2024–Jun 2025.
17	J.e. Mcamis, Inc. Top agencies Army (Department of the Army)	$36,680	<0.1%	Rank history: #1 in FY2021, #2 in FY2022, #1 in FY2024 and not on the FY2025 list; down 13 since Jul 2024–Jun 2025.
18	John Bouchard & Sons Co. Top agencies DOI (Department of the Interior)	$22,638	<0.1%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and not on the FY2025 list; up 9 since Jul 2024–Jun 2025.
19	D & H Enterprises LLC Top agencies DOI (Department of the Interior)	$7,610	<0.1%	Rank history: not on the FY2021–FY2024 lists and #14 in FY2025; down 8 since Jul 2024–Jun 2025.
20	Holthusen Construction Co Top agencies DOI (Department of the Interior)	$6,800	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
21	Optimum Controls Corporation Top agencies DOI (Department of the Interior)	$3,378	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
22	Gale Construction Company of Illinois Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: #27 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
23	Bristol Bay Native Corporation Through SES Constructors LLC Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
24	Legacy Corporation of IL Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
25	Bloomsdale Excavating Company, Incorporated Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
26	Cornerstone Engineering Inc. Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
27	Supplied Industrial Solutions, Inc. Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: #9 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
28	A and M Engineering & Environmental Services, Inc. Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
29	Randy Kinder Excavating Inc. Top agencies Army (Department of the Army)	$500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 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 $120 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.
• 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 Jul 2024–Jun 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