NAICS codes serve as six-digit identifiers that determine small business eligibility for federal set-aside programs. Contracting officers assign these codes based on a procurement’s principal purpose, linking specific size standards to each contract opportunity. To qualify, businesses must meet SBA size standards for their assigned NAICS code and maintain accurate SAM registration with proper documentation. Small businesses should regularly update their NAICS classifications and consider strategic partnerships to enhance competitiveness. Further exploration reveals strategic approaches for maximizing federal contracting opportunities.
Understanding NAICS Codes and Their Role in Federal Contracts

Classification systems serve as the backbone of federal contracting, with NAICS codes standing at the forefront. These six-digit identifiers, maintained by the U.S. Census Bureau, provide a standardized method for categorizing businesses across North America.
The NAICS code significance extends beyond simple classification—they determine which businesses qualify for set-aside programs based on size standards tied to specific industries. Contracting officers assign a single NAICS code to each solicitation based on the principal purpose of the procurement.
NAICS codes drive small business opportunity access by linking industry-specific size standards to each procurement action.
In the federal marketplace, this industry classification system enables agencies to conduct effective market research, identify qualified vendors, and guarantee consistent procurement practices. Small business owners should understand that size standards established by the SBA using NAICS codes directly impact their eligibility for small business set-asides and specialized programs.
For businesses pursuing government contracts, understanding their appropriate NAICS codes is essential for SAM registration and determining eligibility for small business opportunities. Entrepreneurs seeking SBA assistance must carefully review their industry classifications to maximize their chances of qualifying for federal programs and contracts.
Navigating Set-Aside Program Qualifications and Requirements

While pursuing federal contracts through set-aside programs offers significant opportunities for small businesses, successful participation requires thorough understanding of specific eligibility criteria tied to NAICS codes.
Businesses must meet multiple set-aside criteria, including the 51% ownership and control requirement by qualifying individuals and adherence to SBA size standards for their specific NAICS code. Federal contractor registration through SAM helps ensure proper documentation and compliance with all regulatory requirements.
Eligibility verification involves submitting extensive documentation through appropriate certification channels, which vary by program. Some require formal SBA certification, while others permit self-certification. All businesses pursuing government contracts must obtain a Unique Entity Identifier through SAM.gov as part of the registration process.
The calculation for size determination depends on industry type, with some businesses qualifying based on employee count averaged over the previous 12 months, including part-time and temporary workers.
Businesses must maintain compliance with ownership, control, and size standards throughout contract performance. Contracting officers verify that sufficient qualified businesses exist in the designated NAICS code before establishing a set-aside, ensuring competitive pricing and adequate market participation.
Strategies for Small Businesses to Leverage NAICS-Based Set-Asides

Numerous small businesses can greatly enhance their federal contracting opportunities by strategically leveraging NAICS-based set-aside programs.
Success requires maintaining code accuracy in business profiles and understanding size standards that determine eligibility. Small businesses should implement these proven approaches:
Accurate NAICS codes and size standard knowledge form the foundation for small business contracting success.
- Regularly update NAICS codes to reflect current business capabilities, ensuring alignment with federal solicitation requirements.
- Form strategic partnerships with complementary businesses to expand competitive advantage in specific NAICS categories.
- Challenge incorrectly applied NAICS codes in solicitations when they limit fair competition.
- Market services specifically to government buyers using NAICS-based eligibility as a competitive differentiator.
Companies can further maximize opportunities by establishing expertise in specialized NAICS codes with fewer competitors, while consistently monitoring code updates from the SBA. Understanding that contractors must certify compliance with the size standard associated with the selected NAICS code for each contract opportunity regardless of their primary business focus. Small businesses should consider participating in the SBIR program which provides research and development funding specifically targeted at innovative small business concerns. Researching industry standards thoroughly helps ensure accurate code selection and prevents disqualification from federal contracting opportunities.
Frequently Asked Questions
Can Businesses Qualify for Multiple NAICS Codes Simultaneously?
Yes, businesses can qualify for multiple NAICS codes simultaneously.
Effective NAICS classification strategies allow companies to register several codes in the System for Award Management (SAM) that accurately reflect their diverse products and services.
Multiple NAICS benefits include expanded eligibility for federal contracts across different sectors and increased competitive advantage.
For instance, a company providing both IT services and manufacturing equipment can register both relevant NAICS codes, enabling them to bid on contracts in both industries.
How Often Are NAICS Codes Updated or Revised?
NAICS codes undergo thorough updates and revisions every five years.
The Office of Management and Budget (OMB), in collaboration with North American partners, oversees this regular review cycle to make sure classifications remain current with evolving economic activities.
The Economic Classification Policy Committee (ECPC) manages the maintenance process, which includes public input and industry proposals.
The most recent NAICS revision occurred in 2022, with implementation completed in early 2023 across federal data collection systems.
What Happens if My Business Outgrows Its Small Business Status?
When a business outgrows its small business status, several significant changes occur. The company becomes ineligible for small business set-aside contracts but can pursue larger federal opportunities.
Business operations must adapt through strategic restructuring, diversified revenue streams, and compliance with new regulations. Companies may need to adjust staffing levels, modify financial strategies, and implement more robust reporting procedures.
Many businesses leverage this shift by participating in mentor-protégé programs or exploring new markets to maintain growth momentum.
Can Subcontractors Use Prime Contractor’s NAICS Code for Eligibility?
No, subcontractors cannot use the prime contractor’s NAICS code for eligibility.
For set-aside program purposes, a subcontractor must independently qualify under the specific NAICS code assigned to the prime contract to be considered a “similarly situated entity.”
Each business must meet size standards according to the relevant NAICS code for each contract.
While subcontractors may perform work under a prime’s contract, their eligibility for small business set-aside status must be established separately under appropriate size standards.
How Do International Businesses Participate in Federal Set-Aside Programs?
International businesses face significant limitations for federal set-aside participation.
To qualify, businesses must be at least 51% owned and controlled by U.S. citizens, not merely incorporated in the U.S.
Foreign entities must establish a compliant U.S. business structure that meets all program requirements, including size standards and ownership verification.
Even with U.S. registration, companies without majority U.S. citizen ownership remain ineligible for most federal set-aside opportunities.