# Physical security & access

Part ID: 9.09 · Layer 9 (Building shell, site & construction)

Physical access control, video surveillance, perimeter detection, and guarding systems that secure the facility and its data halls.

This layer covers the security systems installed alongside the building's electrical and mechanical infrastructure: badge and biometric access control, video management systems, mantraps and turnstiles that enforce single-person entry to data halls, perimeter intrusion detection around the site boundary, and the guarding services that staff it. It's a cross-cutting layer that touches the building envelope (9.06), the fencing and site perimeter, and the operational procedures of the tenants in 9.01 and 9.02.
Security requirements at hyperscale and AI-campus facilities are typically driven by tenant-specific compliance regimes rather than by AI workloads themselves, so this category hasn't seen the same demand reshaping visible elsewhere in the taxonomy — the main effect of the AI buildout here is simply more sites needing a full security stack, at a pace investors should expect to track overall data center construction volume rather than any distinct density-driven dynamic.

**AI delta:** AI buildout mainly adds volume — more sites needing a full security stack — rather than changing per-site security requirements.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| Allegion | manufacturer | inferred | public | ALLE |  |
| ASSA ABLOY | manufacturer | inferred | public | ASSA-B.ST | and Betafence (private) fencing |
| Axis | manufacturer | inferred | subsidiary |  |  |
| Dormakaba | manufacturer | inferred | public | DOKA.SW |  |
| Hanwha Vision | manufacturer | inferred | subsidiary |  |  |
| Honeywell | manufacturer | inferred | public | HON | Onity |
| Horton | manufacturer | inferred | subsidiary |  |  |
| Johnson Controls | manufacturer | inferred | public | JCI | Software House |
| Motorola/Avigilon | manufacturer | inferred | subsidiary |  |  |
| Suprema | manufacturer | inferred | public | 236200.KS |  |
| Boon Edam | manufacturer | inferred | private |  | mantraps and turnstiles |
| Bosch | manufacturer | inferred | private |  |  |
| Brivo | manufacturer | inferred | private |  |  |
| Genetec | manufacturer | inferred | private |  |  |
| Idemia | manufacturer | inferred | private |  | biometrics |
| Verkada | manufacturer | inferred | private |  |  |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.