621310

Offices of Chiropractors

Health Care and Social Assistance › Ambulatory Health Care Services › Offices of Other Health Practitioners

SBA Size Standard

$9M average annual receipts

Revenue-Based Verify at SBA.gov →

NAICS Code Hierarchy

62

Sector

Health Care and Social Assistance

621

Subsector

Ambulatory Health Care Services

6213

Industry Group

Offices of Other Health Practitioners

621310

National Industry (This Code)

Offices of Chiropractors

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This industry comprises establishments of health practitioners having the degree of D.C. (Doctor of Chiropractic) primarily engaged in the independent practice of chiropractic. These practitioners provide diagnostic and therapeutic treatment of neuromusculoskeletal and related disorders through the manipulation and adjustment of the spinal column and extremities, and operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers.

✓ Small Business Eligibility at a Glance

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

Size Standard

$9M average annual receipts

Measurement Period

3-year average

Standard Type

Revenue-Based

Applies To

All contracts under NAICS 621310

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.

How to Use NAICS 621310 in SAM.gov

NAICS code 621310Offices of Chiropractors — 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 Offices of Other Health Practitioners 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 $9M average annual receipts, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 621310.

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Frequently Asked Questions

What is NAICS code 621310?

NAICS code 621310 is 'Offices of Chiropractors', classified under the Health Care and Social Assistance sector (NAICS 62). This industry comprises establishments of health practitioners having the degree of D.C. (Doctor of Chiropractic) primarily engaged in the independent practice of chiropractic. These practitioners pr

What is the SBA small business size standard for NAICS code 621310?

The SBA defines a small business under NAICS code 621310 (Offices of Chiropractors) as one with $9M average annual receipts. 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 621310 in SAM.gov?

To register NAICS code 621310 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 621310 (Offices of Chiropractors) 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 Offices of Other Health Practitioners

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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