If you’re applying for MWBE certification in New York or New Jersey, you’ve probably seen a question about NAICS codes — but few business owners truly understand how important those numbers are.
The North American Industry Classification System (NAICS) is how government agencies categorize your business. It determines which contracts you’re eligible to bid on, which certifications you qualify for, and even which support programs you can access.
Choosing the wrong NAICS code can slow down your certification, limit your opportunities, or make it harder for procurement officers to find you. Here’s what every business owner in NYC and NJ needs to know before applying.
1. What a NAICS Code Is — and Why It Matters
A NAICS code is a six-digit number used by federal, state, and local agencies to classify businesses by industry.
For example:
- 236220 – Commercial and Institutional Building Construction
- 541611 – Administrative Management & General Consulting Services
- 561720 – Janitorial Services
These codes tell agencies what you do — and help them match you with projects, grants, or subcontracting opportunities.
Why it matters for MWBEs:
- Your NAICS code connects your business to the right procurement categories.
- Empire State Development, NYC SBS, and Port Authority use these codes to verify your eligibility.
- If your code doesn’t reflect your actual services, you may miss out on relevant bids.
2. How to Find (and Verify) Your NAICS Code
Most businesses can look up their NAICS code through the U.S. Census Bureau’s NAICS search tool, but MWBEs in the New York region should go a step further.
Here’s how to verify locally:
- Visit naics.com/search or the Census Bureau’s lookup.
- Search by keyword — for example, “plumbing,” “marketing,” or “construction.”
- Check your business tax return (Schedule C or 1120) — sometimes a code was auto-assigned.
- Confirm it aligns with what NYC SBS or Empire State Development lists for your certification category.
Pro tip: You can have multiple NAICS codes if your business provides more than one type of service — but you’ll need to choose one primary code for your certification.
3. How Agencies Use NAICS Codes to Match Opportunities
When procurement officers search for vendors, they often filter by NAICS code. That means your code determines whether your business shows up in their results.
For example:
- The Port Authority of NY/NJ uses NAICS codes to identify MWBEs for transportation, infrastructure, and maintenance contracts.
- The NYC Department of Design and Construction filters vendors by NAICS for architecture, construction, and professional services.
- The State of New Jersey Business Enterprise Program relies on codes to track minority and women-owned participation by industry.
If your code is inaccurate, you could be invisible to the very agencies looking for your services.
4. Choosing the Right NAICS Code Strategy
Some small business owners try to list every possible service they provide — but that approach can backfire. Agencies prefer to see focus and expertise.
Here’s how to choose smartly:
- Pick one primary NAICS code that represents your core business.
- Add secondary codes only if they truly reflect active services, not future plans.
- Review past contract awards in your category (available on agency procurement portals). See which codes winning vendors are using — and align accordingly.
Example:
If you’re a general contractor specializing in small commercial projects, use 236220 (Commercial Building Construction) as your primary, not 238160 (Roofing) unless that’s your niche.
5. How NAICS Codes Affect Your Certification Process
During MWBE review, agencies cross-reference your NAICS code with:
- Your business description in the application.
- The work experience listed on your résumé or capability statement.
- Your actual invoices, contracts, and tax returns.
If these don’t match, your application may be flagged for clarification — slowing down approval.
Make sure everything aligns:
- The NAICS code should reflect what you actually sell and deliver.
- Your tax filings and website should use the same language.
- Keep your capability statement consistent with your chosen codes.
Final Takeaway
Getting your NAICS code right is one of the simplest ways to strengthen your MWBE certification application — and one of the easiest to overlook.
In a competitive region like New York and New Jersey, where government and private contracts are abundant, your NAICS code is how agencies find you. Take the time to verify it, align your materials, and update it as your business evolves.
If you’re preparing for certification, review your NAICS codes before you hit “submit.” That small step can make a big difference in how many doors open for your MWBE firm.