333415

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing

Manufacturing › Machinery Manufacturing › Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing

SBA Size Standard

1,250 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

33

Sector

Manufacturing

333

Subsector

Machinery Manufacturing

3334

Industry Group

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing

333415

National Industry (This Code)

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This U.S. industry comprises establishments primarily engaged in (1) manufacturing air-conditioning (except motor vehicle) and warm air furnace equipment and/or (2) manufacturing commercial and industrial refrigeration and freezer equipment. Illustrative Examples: Air-conditioning and warm air heating combination units manufacturing Air-conditioning compressors (except motor vehicle) manufacturing Air-conditioning condensers and condensing units manufacturing Dehumidifiers (except portable electric) manufacturing Heat pumps manufacturing Humidifying equipment (except portable) manufacturing Refrigerated counter and display cases manufacturing Refrigerated drinking fountains manufacturing Snow making machinery manufacturing Soda fountain cooling and dispensing equipment manufacturing

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

1,250 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 333415

Set-Aside Programs

8(a), WOSB, HUBZone, SDVOSB

Certification Required

No (self-certify in SAM.gov)

Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.

Cross-References

The following activities are classified elsewhere in the NAICS system:

Manufacturing motor vehicle air-conditioning systems and compressors--are classified in Industry 336390, Other Motor Vehicle Parts Manufacturing;
Manufacturing household-type refrigerators and freezers--are classified in Industry 335220, Major Household Appliance Manufacturing;
Manufacturing portable electric space heaters, humidifiers, and dehumidifiers--are classified in Industry 335210, Small Electrical Appliance Manufacturing;
Manufacturing heating boilers, heating stoves, floor and wall mount furnaces, and electric wall and baseboard heating units--are classified in U.S. Industry 333414, Heating Equipment (except Warm Air Furnaces) Manufacturing; and
Manufacturing furnace air filters--are classified in U.S. Industry 333413, Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing.

How to Use NAICS 333415 in SAM.gov

NAICS code 333415Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing space will be able to find your business.

If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of 1,250 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 333415.

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Frequently Asked Questions

What is NAICS code 333415?

NAICS code 333415 is 'Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing', classified under the Manufacturing sector (NAICS 33). This U.S. industry comprises establishments primarily engaged in (1) manufacturing air-conditioning (except motor vehicle) and warm air furnace equipment and/or (2) manufacturing commercial and indust

What is the SBA small business size standard for NAICS code 333415?

The SBA defines a small business under NAICS code 333415 (Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing) as one with 1,250 employees. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 333415 in SAM.gov?

To register NAICS code 333415 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 333415 (Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

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Related NAICS Codes

Other codes in Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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