NAICS Code for Construction Company
The NAICS code for a construction company is 236220, Commercial and Institutional Building Construction. Most federal building work for general contractors uses 236220, Commercial and Institutional Building Construction, which covers new construction, additions, alterations and renovations of offices, warehouses and other non-residential buildings. Construction codes split by what you build (buildings in 236, heavy and civil in 237) and by trade (238). A frequent mistake is listing only 236220 when most of your revenue comes from one specialty trade like electrical or roofing.
Related codes to add
Most businesses list several NAICS codes. Use 236220 as your primary if it covers most of your revenue, and add these when they describe work you also do:
| Code | Use it when | Size standard |
|---|---|---|
| 236118 Residential Remodelers | You remodel or renovate homes and apartments. | $45 million or less in receipts |
| 236115 New Single-Family Housing Construction (except For-Sale Builders) | You build new single-family homes for clients. | $45 million or less in receipts |
| 237310 Highway, Street, and Bridge Construction | You build roads, streets or bridges. | $45 million or less in receipts |
| 237990 Other Heavy and Civil Engineering Construction | You build other heavy civil projects like docks, dams, canals or flood control structures. | $45 million or less in receipts |
Government contracts for this work
How to choose
Your primary NAICS code should match the work that brings in most of your revenue, and it sets which size standard applies to you for most set-aside contracts. Read each code's Census definition before you register. Our guide on how to choose NAICS codes covers the trade-offs. To see whether you count as small under these codes, try the size standard checker.
Frequently asked questions
What is the NAICS code for a construction company?
The NAICS code for a construction company is 236220, Commercial and Institutional Building Construction. Most federal building work for general contractors uses 236220, Commercial and Institutional Building Construction, which covers new construction, additions, alterations and renovations of offices, warehouses and other non-residential buildings. Construction codes split by what you build (buildings in 236, heavy and civil in 237) and by trade (238). A frequent mistake is listing only 236220 when most of your revenue comes from one specialty trade like electrical or roofing.
What is the SBA size standard for NAICS 236220?
A business counts as small under NAICS 236220 with $45 million or less in average annual receipts, under the SBA's table of size standards. Federal contracts set aside for small businesses under this code are limited to firms that meet it.
Can I list more than one NAICS code?
Yes. In your SAM.gov registration you pick one primary NAICS code and can add as many others as describe work you can actually do. Add every code below that fits, because agencies search and set aside contracts by code.