NAICS Codes That Are Printing Money in Federal Cybersecurity Right Now

When a contracting officer drafts a cybersecurity solicitation, the first concrete thing they pick is the NAICS code. That code determines who counts as a 'small business' for set-aside purposes, who gets filtered into automated industry searches, and — through the PSC (Product Service Code) — what category of work it is.

If you're not registered under the right NAICS, you are invisible to the search filters the agency uses to find you. The choice is consequential.

541512 — Computer Systems Design Services. The single highest-dollar NAICS for federal cybersecurity. Covers systems integration, security architecture, and most managed services work. Size standard: $34M (revised in recent SBA updates — confirm current threshold).

541519 — Other Computer Related Services. Where pure cybersecurity services that don't quite fit 541512 land — penetration testing, threat hunting, IR retainers. Smaller size standard, which can be an advantage for very small firms.

541611 — Administrative & General Management Consulting. Used for cybersecurity advisory, GRC, policy development, and CMMC consulting. Different size standard ($24.5M-ish range), different competitor set.

541715 — Research and Development in the Physical, Engineering, and Life Sciences. Where DoD and IC cyber R&D lives, including a lot of zero-trust, AI/ML security, and offensive cyber research. Much larger size standard (1,000+ employees), which keeps competition smaller for boutique research shops.

541330 — Engineering Services. Used for cyber engineering on weapons systems, control systems, and ICS/OT security work. If you touch operational technology, this code opens DoD and DOE opportunities you'd otherwise miss.

611420 — Computer Training. Underrated. Federal cyber workforce training is a multi-hundred-million-dollar category every year.

Contracting officers also tag opportunities with Product Service Codes. The ones to know for cyber: D310 (IT and telecom — cyber security), D399 (other IT services), R425 (engineering and technical services — professional), DA01 (IT support services). Layer PSC filters on top of NAICS in your daily search and you'll surface a different set of opportunities than NAICS alone.

You can be registered under many NAICS codes, but your primary NAICS determines your small-business size for the corporate rep & cert. Pick the one where (a) you'll bid the most often, and (b) your revenue keeps you safely under the size standard. This is a strategic choice, not a clerical one — talk it through with a GovCon-experienced CPA before locking it in.

Once you've picked the right NAICS and PSC codes, your opportunity search should be driven by them — not by keyword searches for 'cybersecurity.' Agencies don't always write 'cybersecurity' into the title. They write 'information assurance,' 'cyber resiliency,' 'RMF,' 'continuous monitoring,' 'A&A support.' NAICS and PSC filters catch those; keyword search does not.

See The Hidden SAM.gov Opportunities Your Competitors Are Missing for how to combine notice types, NAICS, and PSC into a daily filter that surfaces what your competitors are skipping.