811310 — Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
Description
This industry comprises establishments primarily engaged in the repair and maintenance of commercial and industrial machinery and equipment. Establishments in this industry either sharpen/install commercial and industrial machinery blades and saws or provide welding (e.g., automotive, general) repair services; or repair agricultural and other heavy and industrial machinery and equipment (e.g., forklifts and other material handling equipment, machine tools, commercial refrigeration equipment, construction equipment, and mining machinery).
Overview Facts
| NAICS Code | 811310 |
|---|---|
| Industry Title | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance |
| SBA Size Standard | $12,500,000 |
| U.S. Establishments | 22,907 (Census CBP, 2023) |
| IRS PBA Code | 811310 (exact match) |
| Sectors Hierarchy | Sector 81 → 811 → 8113 |
| Source / Verified | US Census 2022 NAICS Manual, Census CBP / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 7623 - Refrigeration and Air-Conditioning Service and Repair Shops (via SIC1987:7623→NAICS1997:81131→2002:811310→2007:811310→2012:811310→2017:811310→2022:811310)
- SIC 7692 - Welding Repair (via SIC1987:7692→NAICS1997:81131→2002:811310→2007:811310→2012:811310→2017:811310→2022:811310)
- SIC 7694 - Armature Rewinding Shops (via SIC1987:7694→NAICS1997:81131→2002:811310→2007:811310→2012:811310→2017:811310→2022:811310)
- SIC 7699 - Repair Shops and Related Services, NEC (via SIC1987:7699→NAICS1997:81131→2002:811310→2007:811310→2012:811310→2017:811310→2022:811310)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC J036 — Maintenance, Repair and Rebuilding of Equipment: Special Industry Machinery
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 811310:
- Sector 81 Directory Hub — List of related industries in the Other Services (except Public Administration) sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 8113
Frequently Asked Questions (FAQ)
Is 811310 a valid 2022 NAICS code?
NAICS 811310 is 'Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance', a 2022 U.S. national industry under Sector 81 (Other Services (except Public Administration)); the SBA small-business size standard is $12,500,000.
What is the SBA size standard for NAICS 811310?
The SBA small business size standard for NAICS 811310 is $12,500,000 (based on receipts).
What is the legacy SIC code mapping for 811310?
NAICS code 811310 maps to the legacy 1987 SIC codes: 7623 - Refrigeration and Air-Conditioning Service and Repair Shops, 7692 - Welding Repair, 7694 - Armature Rewinding Shops, 7699 - Repair Shops and Related Services, NEC.