NAICS 237110: Water and Sewer Line and Related Structures Construction — Federal Contracts

What NAICS 237110 covers

The North American Industry Classification System (NAICS) is the standard the federal government uses to classify the industry of every contractor and every procurement. NAICS 237110 identifies businesses primarily engaged in water and sewer line and related structures construction. When a contracting officer publishes a solicitation on SAM.gov, they tag it with the NAICS code that best matches the work — which is why getting your NAICS portfolio right inside SAM is the single most important step for showing up in agency searches.

Who buys NAICS 237110?

The federal agencies awarding the most contract value to vendors in this NAICS, based on 15 contractors tracked in the Mindy contractor database:

1. 1Dept Of The Army
2. 2Bureau Of Reclamation
3. 3Dept Of The Air Force
4. 4Dept Of The Navy
5. 5National Institutes Of Health

Source: aggregated from the Mindy contractor database (prime contractor disclosures via SBA + agency directories).

Top contractors in NAICS 237110

The largest prime contractors associated with NAICS 237110, ranked by total reported federal contract value. These are your most likely incumbents — and your most likely teaming partners on recompetes:

1. 1
   Thalle Construction CO INC.

   $2.9B total reported value
2. 2
   Environmental Chemical Corporation

   $604.3M total reported value
3. 3
   Jacobs Engineering Group INC.

   $530.6M total reported value
4. 4
   Cdm Constructors INC

   $265.5M total reported value
5. 5
   Oscar Renda Contracting INC

   $131.8M total reported value
6. 6
   Pcl Construction INC

   $42.4M total reported value
7. 7
   C. J. Mahan Construction Company LLC

   $39.1M total reported value
8. 8
   Southern Contracting LLC

   $19.9M total reported value

Values reflect each contractor's aggregate reported federal contract value (across all of their NAICS codes, not just 237110). Use as a ranking signal, not as a per-NAICS award total.