Top Interior security systems services (except locksmiths) contractors
In the 12 months ending Oct 5, 2026, the Department of the Interior obligated $7.3M in net prime contract dollars under NAICS 561621, down 0.4% from $7.4M in the preceding 12 months. 109 prime contractors received positive obligations, and 24 of them accounted for 80% of that spend.
Prime contracts funded by the Department of the Interior. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top Interior contractors for NAICS 561621
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Onerain Incorporated | $1.3M | $1.3M | 16.3% | — |
| 2 | Johnson Controls Security Solutions LLC | $627K | $464K | 7.8% | — |
| 3 | Digitronics, Inc. | $580K | $290K | 7.2% | ▲ 3 |
| 4 | Signet Technologies, Inc. | $579K | $262K | 7.2% | ▲ 3 |
| 5 | Hurtvet Subcontracting, Inc. | $474K | $200K | 5.9% | ▲ 4 |
| 6 | Taylor Fire Protection Services LLC | $455K | $8K | 5.6% | ▲ 81 |
| 7 | Media Plumbing & Heating Inc | $380K | $172K | 4.7% | ▲ 4 |
| 8 | Alertwest, Inc | $297K | $0 | 3.7% | New |
| 9 | Hackett Security, Inc | $252K | $84K | 3.1% | ▲ 14 |
| 10 | Electronic Security Concepts LLC | $172K | $21K | 2.1% | ▲ 48 |
| 11 | Condortech Services, Inc. | $147K | $131K | 1.8% | ▲ 5 |
| 12 | Tanauan Global LLC | $137K | $0 | 1.7% | New |
| 13 | Rexus USA LLC | $134K | $0 | 1.7% | New |
| 14 | Kastle Systems LLC | $118K | $147K | 1.5% | — |
| 15 | Adept Patriot Services LLC | $103K | $144K | 1.3% | — |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Taylor Fire Protection Services LLC$8K → $455K (+$446K) · now #6
- Signet Technologies, Inc.$262K → $579K (+$318K) · now #4
- Alertwest, Inc$0 → $297K (+$297K) · now #8
Largest declines
- Trofholz Technologies, Inc.$34K → −$655K (−$689K) · no latest-period obligations
- Mountain West Integrated Services, LLC$446K → $25K (−$421K) · now #44
- Reagent World, Inc.$399K → $70K (−$329K) · now #23
New to this market
28 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Alertwest, Inc | Aug 26, 2026 | $297K |
| Tanauan Global LLC | Jun 5, 2026 | $137K |
| Rexus USA LLC | Jul 16, 2026 | $134K |
| Inter-Pacific Inc. | Sep 23, 2026 | $87K |
| Next Level Home Audio & Video, Inc. | Sep 10, 2026 | $79K |
| American Alarm & Communications, Inc. | Sep 11, 2026 | $58K |
| Navajo in Sight Technologies LLC | Apr 1, 2026 | $40K |
| HEI Security LLC | Jul 1, 2026 | $39K |
Where the money comes from
Funding sub-agencies within the Department of the Interior, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| National Park Service | $3.1M | $3.4M | Down $293K (8.7%) |
| Bureau of Indian Affairs and Bureau of Indian Education | $1.5M | $1.7M | Down $244K (14.0%) |
| Departmental Offices | $1.0M | $699K | Up $310K (44.3%) |
| Bureau of Land Management | $773K | $289K | Up $484K (167.6%) |
| U.S. Fish and Wildlife Service | $738K | $498K | Up $240K (48.1%) |
| U.S. Geological Survey | $250K | $268K | Down $18K (6.7%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 140R8122P0076 | Trofholz Technologies, Inc. EACSS IMPROVEMENT PROJECT | $3.2M | Apr 30, 2027 |
Common questions
Who are the top Interior contractors for NAICS 561621?
In the latest 12 months, Onerain Incorporated ($1.3M), Johnson Controls Security Solutions LLC ($627K), Digitronics, Inc. ($580K) received the most Interior obligations for security systems services (except locksmiths).
How concentrated is this market?
The eight largest primes held 58.2% of positive obligations, and Onerain Incorporated alone held 16.3%. 28 contractors won their first obligations in this market during the latest 12 months.
Are any large Interior NAICS 561621 contracts ending soon?
1 of the largest awards in this market reach their current end date in the next 18 months. The first is 140R8122P0076 (Trofholz Technologies, Inc., $3.2M obligated), ending Apr 30, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$8.4MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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