Top 42 Contractors in PSC Y1DB: Construction of Laboratories and Clinics, Aug 2025–Jul 2026

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 Y1DB: Construction of Laboratories and Clinics, FY2025.

The top 10 won 96% of PSC Y1DB contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$1,484,285,086 Net of deobligations, by contracts coded PSC Y1DB
Contractors
44 Parent companies with an obligation
Largest contractor
M. a. Mortenson Companies Inc. $677 million, 44.5% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 42 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1
M. a. Mortenson Companies Inc. Through M.a. Mortenson Company
$677,472,565
Rank history: #19 in FY2021, #15 in FY2022, #34 in FY2023, #12 in FY2024 and #30 in FY2025; up 25 since Aug 2024–Jul 2025.
2 $491,767,200
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
3 $90,702,771
Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
4 $70,320,688
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5 $32,819,208
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
6 $32,709,104
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7 $25,725,728
Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
8
Ameritech Contracting LLC
$13,650,156
Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9 $13,496,192
Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
10 $12,918,913
Rank history: #17 in FY2021, #6 in FY2022, #8 in FY2023, #5 in FY2024 and #9 in FY2025; unchanged since Aug 2024–Jul 2025.
11 $9,364,397
Rank history: #1 in FY2021, #5 in FY2022, #15 in FY2023, #8 in FY2024 and #20 in FY2025; up 3 since Aug 2024–Jul 2025.
12 $6,840,116
Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #14 in FY2025; down 8 since Aug 2024–Jul 2025.
13 $4,187,818
Rank history: #6 in FY2021, #2 in FY2022, #1 in FY2023, #1 in FY2024 and #12 in FY2025; down 11 since Aug 2024–Jul 2025.
14 $3,020,195
Rank history: #2 in FY2021, #9 in FY2022, #6 in FY2023, #3 in FY2024 and not on the FY2025 list; down 7 since Aug 2024–Jul 2025.
15 $2,513,612
Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16
Federal Acquisition Strategies LLC
$2,175,397
Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #18 in FY2025; up 5 since Aug 2024–Jul 2025.
17 $1,785,299
Rank history: not on the FY2021 list, #10 in FY2022, not on the FY2023–FY2024 lists and #16 in FY2025; unchanged since Aug 2024–Jul 2025.
18 $1,618,341
Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
19 $1,363,715
Rank history: not on the FY2021–FY2022 lists, #2 in FY2023, not on the FY2024 list and #11 in FY2025; up 17 since Aug 2024–Jul 2025.
20
Clark Construction LLC Through Clark Construction Group LLC
$1,000,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
21 $892,846
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
22 $696,000
Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23 $567,395
Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; down 15 since Aug 2024–Jul 2025.
24
Cdeem Co
$343,723
Rank history: not on the FY2021–FY2022 lists, #11 in FY2023, #7 in FY2024 and #27 in FY2025; down 13 since Aug 2024–Jul 2025.
25 $320,571
Rank history: not on the FY2021–FY2022 lists, #18 in FY2023, #29 in FY2024 and #29 in FY2025; up 3 since Aug 2024–Jul 2025.
26
Advon Corporation
$209,372
Rank history: not on the FY2021–FY2022 lists, #71 in FY2023, #6 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
27 $208,666
Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; down 12 since Aug 2024–Jul 2025.
28
Patriot Construction Inc
$193,347
Rank history: #82 in FY2021, #41 in FY2022, #66 in FY2023, #31 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
29 $185,547
Rank history: #24 in FY2021, not on the FY2022 list, #19 in FY2023, not on the FY2024 list and #35 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30
Harper Construction Company Inc.
$152,300
Rank history: #3 in FY2021, #26 in FY2022, #52 in FY2023, #10 in FY2024 and not on the FY2025 list; down 3 since Aug 2024–Jul 2025.
31 $130,442
Rank history: not on the FY2021–FY2022 lists, #9 in FY2023, #41 in FY2024 and #26 in FY2025; down 6 since Aug 2024–Jul 2025.
32 $125,632
Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33
Spees-Hernandez JV LLC Through Spees LLC
$120,591
Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34 $103,939
Rank history: not on the FY2021 list, #4 in FY2022, #25 in FY2023, #25 in FY2024 and #32 in FY2025; down 1 since Aug 2024–Jul 2025.
35 $98,435
Rank history: not on the FY2021 list, #63 in FY2022, #23 in FY2023, not on the FY2024 list and #33 in FY2025; down 1 since Aug 2024–Jul 2025.
36 $85,189
Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #34 in FY2025; down 23 since Aug 2024–Jul 2025.
37 $73,168
Rank history: #64 in FY2021, #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
38 $39,385
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39
Veterans Holding Group LLC Through Relyant Global LLC
$32,349
Rank history: not on the FY2021 list, #17 in FY2022, #59 in FY2023, #43 in FY2024 and #39 in FY2025; up 2 since Aug 2024–Jul 2025.
40 $28,878
Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #36 in FY2025; down 1 since Aug 2024–Jul 2025.
41 $20,463
Rank history: #12 in FY2021, not on the FY2022 list, #43 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
42 $9,703
Rank history: not on the FY2021 list, #7 in FY2022, #40 in FY2023, #45 in FY2024 and #23 in FY2025; down 20 since Aug 2024–Jul 2025.
Show 17 more

42 of 44 contractors listed here. See the rest on GovTribe.

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 $1.52 billion 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 Y1DB contractors in Aug 2025–Jul 2026?

1. M. a. Mortenson Companies Inc. ($677M), 2. Manhattan Torcon A Joint Venture ($492M), 3. Dpr-Rq Construction, LLC ($90.7M), 4. BL Harbert International LLC ($70.3M), 5. Dean Snyder Construction Co. ($32.8M), 6. Richard Group LLC ($32.7M), 7. Bering Straits Native Corporation ($25.7M), 8. Ameritech Contracting LLC ($13.7M), 9. Amentum Holdings, Inc. ($13.5M), 10. HBP Joint Venture ($12.9M).

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