335311

Power, Distribution, and Specialty Transformer Manufacturing

Manufacturing › Electrical Equipment, Appliance, and Component Manufacturing › Electrical Equipment Manufacturing

SBA Size Standard

800 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

33

Sector

Manufacturing

335

Subsector

Electrical Equipment, Appliance, and Component Manufacturing

3353

Industry Group

Electrical Equipment Manufacturing

335311

National Industry (This Code)

Power, Distribution, and Specialty Transformer 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 manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transformers in this industry vary (e.g., step up or step down) voltage but do not convert alternating to direct or direct to alternating current. Illustrative Examples: Fluorescent ballasts (i.e., transformers) manufacturing Substation transformers, electric power distribution, manufacturing Distribution transformers, electric, manufacturing Transmission and distribution voltage regulators manufacturing

✓ Small Business Eligibility at a Glance

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

Size Standard

800 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 335311

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:

Establishments primarily engaged in manufacturing electronic component-type transformers are classified in U.S. Industry 334416, Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing.

How to Use NAICS 335311 in SAM.gov

NAICS code 335311Power, Distribution, and Specialty Transformer 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 Electrical 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 800 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 335311.

Log in Entity Registration Goods & Services Add NAICS Code Enter 335311 Save

Frequently Asked Questions

What is NAICS code 335311?

NAICS code 335311 is 'Power, Distribution, and Specialty Transformer Manufacturing', classified under the Manufacturing sector (NAICS 33). This U.S. industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transf

What is the SBA small business size standard for NAICS code 335311?

The SBA defines a small business under NAICS code 335311 (Power, Distribution, and Specialty Transformer Manufacturing) as one with 800 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 335311 in SAM.gov?

To register NAICS code 335311 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 335311 (Power, Distribution, and Specialty Transformer Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related NAICS Codes

Other codes in Electrical Equipment Manufacturing

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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