Top 100 Contractors in NAICS 237110: Water and Sewer Line and Related Structures Construction, 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 NAICS 237110: Water and Sewer Line and Related Structures Construction, FY2025.
The top 10 won 54% of NAICS 237110 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $1,140,455,425 Net of deobligations, by contracts coded NAICS 237110
- Contractors
- 490 Parent companies with an obligation
- Largest contractor
- Ames Construction, Inc. $129 million, 10.9% of obligations
- Data as of
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 |
Ames Construction, Inc.
Top agencies
|
$129,487,964 | ||
| 2 | $129,330,094 | |||
| 3 |
Tutor Perini Corporation
Top agencies
|
$111,808,111 | ||
| 4 | $109,487,800 | |||
| 5 |
Red Point Construction, LLC
Top agencies
|
$38,609,448 | ||
| 6 | $26,512,455 | |||
| 7 | $25,339,800 | |||
| 8 |
Red Eagle 3 JV
Top agencies
|
$22,859,800 | ||
| 9 | $22,785,624 | |||
| 10 |
Kyunan Co., Ltd.
Top agencies
|
$21,195,630 | ||
| 11 |
Bairco Construction Inc.
Top agencies
|
$18,691,193 | ||
| 12 | $16,972,443 | |||
| 13 | $16,664,200 | |||
| 14 | $16,306,048 | |||
| 15 | $13,704,162 | |||
| 16 |
Bethel Downstream JV
Top agencies
|
$12,432,644 | ||
| 17 | $12,121,532 | |||
| 18 |
JBW Group LLC
Top agencies
|
$11,900,000 | ||
| 19 | $11,740,000 | |||
| 20 |
Sea PAC Engineering Inc
|
$11,640,970 | ||
| 21 | $11,346,979 | |||
| 22 | $10,998,670 | |||
| 23 |
Orcom a Division of Ortega Companies Inc
Top agencies
|
$10,795,190 | ||
| 24 |
Briston Construction LLC
Top agencies
|
$10,090,128 | ||
| 25 | $9,827,287 | |||
| 26 | $8,619,526 | |||
| 27 |
Porr Government Services Benelux
Top agencies
|
$8,449,668 | ||
| 28 |
Loduca Associates, Inc.
Top agencies
|
$8,367,796 | ||
| 29 | $8,191,295 | |||
| 30 |
S & K Design Build LLC
Top agencies
|
$7,844,620 | ||
| 31 | $7,674,040 | |||
| 32 |
Jacobs Engineering Group Inc.
Top agencies
|
$7,554,611 | ||
| 33 | $7,449,745 | |||
| 34 | $6,787,338 | |||
| 35 | $6,761,877 | |||
| 36 | $6,644,630 | |||
| 37 |
PCL Construction Inc
|
$6,250,000 | ||
| 38 |
Vixen LLC
Top agencies
|
$5,996,721 | ||
| 39 |
Ames 1 LLC
Top agencies
|
$5,855,604 | ||
| 40 |
B2 Constructors, LLC
Top agencies
|
$5,807,894 | ||
| 41 | $5,362,345 | |||
| 42 |
ANCHOR-41 Construction LLC
Top agencies
|
$5,157,586 | ||
| 43 |
Wright Bros LLC
Top agencies
|
$5,015,701 | ||
| 44 |
DFW Cad Services LLC
Top agencies
|
$5,004,608 | ||
| 45 |
Guidehouse Inc.
Top agencies
|
$4,940,531 | ||
| 46 |
DE LA HOZ Builders Inc.
Top agencies
|
$4,906,558 | ||
| 47 |
Cdeem Co
Top agencies
|
$4,776,000 | ||
| 48 |
A & H-Ambica JV LLC
Top agencies
|
$4,580,000 | ||
| 49 |
Tybe-Garney Federal JV LLC
Top agencies
|
$4,345,536 | ||
| 50 | $4,209,780 | |||
| 51 |
Frawner Corporation
Top agencies
|
$4,176,435 | ||
| 52 | $4,101,458 | |||
| 53 |
Orders Construction Co Inc.
Top agencies
|
$3,957,535 | ||
| 54 |
JMG Constructors LLC
Top agencies
|
$3,814,027 | ||
| 55 | $3,796,165 | |||
| 56 | $3,731,570 | |||
| 57 | $3,634,446 | |||
| 58 |
Utility Contracting Inc.
Top agencies
|
$3,557,832 | ||
| 59 |
Kissner G C Inc.
Top agencies
|
$3,431,416 | ||
| 60 | $3,301,193 | |||
| 61 |
Sygnos Inc.
Top agencies
|
$2,993,052 | ||
| 62 |
Mcon Constructors, Inc.
Top agencies
|
$2,766,464 | ||
| 63 | $2,733,051 | |||
| 64 | $2,689,043 | |||
| 65 |
Bundesministerium FUR Umwelt Naturschutz UND Reaktorsicherheit
Top agencies
|
$2,279,853 | ||
| 66 |
Taylor Engineering, PLLC
Top agencies
|
$2,209,305 | ||
| 67 |
Ameritech Contracting LLC
Top agencies
|
$2,190,000 | ||
| 68 |
Kwaan Sac JV, LLC
Top agencies
|
$2,058,452 | ||
| 69 |
GA Mechanical Inc.
Top agencies
|
$2,005,829 | ||
| 70 |
Double Diamond Contracting Inc.
Top agencies
|
$1,931,557 | ||
| 71 |
Teraflex Group LLC
Top agencies
|
$1,923,451 | ||
| 72 | $1,903,556 | |||
| 73 |
Green Tech-Accu JV LLC
Top agencies
|
$1,859,527 | ||
| 74 |
Terra Site Constructors LLC
Top agencies
|
$1,856,477 | ||
| 75 |
Haskins Excavating LLC
Top agencies
|
$1,815,737 | ||
| 76 |
Techni-Con, Inc.
Top agencies
|
$1,798,000 | ||
| 77 | $1,752,582 | |||
| 78 |
Plastech Services, Inc.
Top agencies
|
$1,701,696 | ||
| 79 |
Sustainable Facilities Management Services LLC
Top agencies
|
$1,671,262 | ||
| 80 |
Alfaro General Engineering
Top agencies
|
$1,653,379 | ||
| 81 | $1,544,872 | |||
| 82 | $1,537,395 | |||
| 83 | $1,534,403 | |||
| 84 |
Ahtna Solutions, LLC
Top agencies
|
$1,499,407 | ||
| 85 |
OK2 Construction, LLC
Top agencies
|
$1,399,481 | ||
| 86 |
Transtar Pipeline and Orion Construction JV
Top agencies
|
$1,391,551 | ||
| 87 |
SNC Core JV, LLC
Top agencies
|
$1,376,870 | ||
| 88 |
Vmjr Companies LLC
Top agencies
|
$1,344,650 | ||
| 89 | $1,337,546 | |||
| 90 |
Matthes Parker LLC
Top agencies
|
$1,318,489 | ||
| 91 | $1,317,330 | |||
| 92 |
Lynn/Cornerstone Holdings LLC
Top agencies
|
$1,309,865 | ||
| 93 |
Woi-Bry JV, LLC
Top agencies
|
$1,284,454 | ||
| 94 |
Red Arrow JV, LLC
Top agencies
|
$1,263,783 | ||
| 95 | $1,174,465 | |||
| 96 | $1,166,138 | |||
| 97 |
Calvary Contracting Inc.
Top agencies
|
$1,123,000 | ||
| 98 | $1,094,496 | |||
| 99 | $1,091,772 | |||
| 100 | $1,027,875 |
Show 75 more
100 of 490 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 $1.19 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 NAICS 237110 contractors in Aug 2025–Jul 2026?
1. Ames Construction, Inc. ($129M), 2. Record Steel and Construction, Inc. ($129M), 3. Tutor Perini Corporation ($112M), 4. G.s.e. Construction Company, Inc. ($109M), 5. Red Point Construction, LLC ($38.6M), 6. CDM Smith Inc. ($26.5M), 7. Joseph J Henderson & Son Inc. ($25.3M), 8. Red Eagle 3 JV ($22.9M), 9. Hampton Roads Mechanical of Virginia, LLC ($22.8M), 10. Kyunan Co., Ltd. ($21.2M).
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