The SIN 561621 Gap

What We Found

TSS Group operates under NAICS 541519 — Other Computer Related Services. That's our primary code. We also work under 561621 — Alarm and Security Systems Installation. That's where the gap is.

When we queried the GSA CALC API (Contract Awarded Labor Category), we searched for SIN 561621 specifically. The API returned zero results. Not one small business has published GSA schedule ceiling rates for security systems installation.

For comparison, here's what exists:

Data from GSA CALC API, cached and refreshed quarterly. 1000 total labor rate entries cached.

Why It Matters

If you're a federal facility manager looking for a GSA schedule holder to install access control, cameras, or intrusion detection — you can't find one. You have to go through a full solicitation process. Or you have to use a large prime contractor who subcontracts the work.

If you're a small business that does this work, you're invisible to federal buyers who use GSA Advantage. You compete on open market solicitations only. Your past performance doesn't surface in GSA catalog searches.

What TSS Group Is Doing About It

We're positioning to fill this gap. Our primary NAICS is 541519 (Other Computer Related Services) — IT systems design, integration, network engineering. Our secondary is 561621 (Alarm and Security Systems Installation).

The combination matters. Modern security systems are IT systems. Access control runs on networks. Video surveillance is IP-based. Intrusion detection integrates with building management. The line between "security installation" and "IT services" disappeared about ten years ago, but the NAICS codes haven't caught up.

We do both. That's the point.

The Data

We've cached 1000 GSA schedule labor rates across IT, security, network, and cybersecurity categories. We benchmark every quote against this data before we submit.