What is NAICS code 237120?

NAICS 237120 is the industry "Oil and Gas Pipeline and Related Structures Construction" in the North American Industry Classification System, part of the Construction sector (23).

What is the size standard for NAICS 237120?

The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 237120 in the SBA table of size standards on sba.gov; it changes from time to time.

NAICS Code 237120: Oil and Gas Pipeline and Related Structures Construction

NAICS code 237120 is the industry for oil and gas pipeline and related structures construction in the Construction sector. Agencies tag every federal contract with a NAICS code, so this is the code to list in your SAM.gov registration and to search for bids.

Government contracts under NAICS 237120

Federal agencies obligated $1.7B on contracts under NAICS 237120 from FY2024 to FY2026, including $218M in FY2026. The biggest buyers were the Department of Defense, the Department of Veterans Affairs, the Department of the Interior. The largest contractors were Weston Solutions Inc, Aptim Federal Services, LLC, Reliable Contracting Group, LLC.

See the full breakdown: government oil and gas pipeline and related structures construction contracts, who wins and who buys.

Open government bids for NAICS 237120

The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.

Gas Leak Repair, Valve Installation, and Asphalt Patching ServicesClosing soon
Homeland Security, Department of · Solicitation · NAICS 237120 · AL · Small Business Set Aside - Total
Posted Oct 29, 2026 · Responses due Nov 4, 2026
STA Sand Key Repair Fuel Lines and Tank
Homeland Security, Department of · Combined Synopsis/Solicitation · NAICS 237120 · FL · Small Business Set Aside - Total
Posted Oct 29, 2026 · Responses due Nov 13, 2026

See all 2 open bids under NAICS 237120

Small business size standard for NAICS 237120

To bid on small business set-aside contracts under NAICS 237120, your business must be small under the SBA size standard for this code, measured either by average annual receipts or by number of employees. The values are updated periodically, so check the current SBA table of size standards before you bid.

Other NAICS codes in 2371

How to choose the right NAICS code

Pick the 6-digit code that best describes what you sell. List it as your primary code in SAM.gov, and add other codes for related work. Agencies choose one NAICS code for each contract, so check the codes on past awards for the kind of work you do. Search all codes in the NAICS code lookup.

Related guides

Frequently asked questions

What is NAICS code 237120?: NAICS 237120 is the industry "Oil and Gas Pipeline and Related Structures Construction" in the North American Industry Classification System, part of the Construction sector (23).
What is the size standard for NAICS 237120?: The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 237120 in the SBA table of size standards on sba.gov; it changes from time to time.
Are there government contracts for NAICS 237120?: Yes. Federal agencies obligated $1.7B on contracts under NAICS 237120 from FY2024 to FY2026, and 2 notices are open right now.