311221

Wet Corn Milling and Starch Manufacturing

Manufacturing › Food Manufacturing › Grain and Oilseed Milling

SBA Size Standard

1,300 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

31

Sector

Manufacturing

311

Subsector

Food Manufacturing

3112

Industry Group

Grain and Oilseed Milling

311221

National Industry (This Code)

Wet Corn Milling and Starch 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 wet milling corn and other vegetables (except to make ethyl alcohol). Examples of products made in these establishments are corn sweeteners, such as glucose, dextrose, and fructose; corn oil; and starches (except laundry).

✓ Small Business Eligibility at a Glance

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

Size Standard

1,300 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 311221

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:

Refining and/or blending corn oil from purchased oils--are classified in U.S. Industry 311225, Fats and Oils Refining and Blending;
Manufacturing sweetening syrups from corn syrup and starch base dessert powders--are classified in U.S. Industry 311999, All Other Miscellaneous Food Manufacturing;
Reducing maple sap to maple syrup--are classified in U.S. Industry 111998, All Other Miscellaneous Crop Farming;
Milling (except wet milling) corn--are classified in U.S. Industry 311211, Flour Milling;
Wet milling corn to produce nonpotable ethyl alcohol--are classified in U.S. Industry 325193, Ethyl Alcohol Manufacturing; and
Manufacturing laundry starches--are classified in U.S. Industry 325612, Polish and Other Sanitation Good Manufacturing.

How to Use NAICS 311221 in SAM.gov

NAICS code 311221Wet Corn Milling and Starch 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 Grain and Oilseed Milling 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 1,300 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 311221.

Log in Entity Registration Goods & Services Add NAICS Code Enter 311221 Save

Frequently Asked Questions

What is NAICS code 311221?

NAICS code 311221 is 'Wet Corn Milling and Starch Manufacturing', classified under the Manufacturing sector (NAICS 31). This U.S. industry comprises establishments primarily engaged in wet milling corn and other vegetables (except to make ethyl alcohol). Examples of products made in these establishments are corn sweet

What is the SBA small business size standard for NAICS code 311221?

The SBA defines a small business under NAICS code 311221 (Wet Corn Milling and Starch Manufacturing) as one with 1,300 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 311221 in SAM.gov?

To register NAICS code 311221 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 311221 (Wet Corn Milling and Starch Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related NAICS Codes

Other codes in Grain and Oilseed Milling

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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