Perimeter Ai INC
Echo54 designs and engineers people sensing systems that detect human presence using non-visual signals and edge-based artificial intelligence, without cameras or audio. The company serves border security, critical infrastructure protection, the US Military, sensitive compartmented information facilities, situation rooms, and warehouses, with over 1.2 million devices deployed across 17 countries. The systems operate in indoor, outdoor, above-ground, and below-ground environments and are described as plug-and-play sensors that require no network or setup.
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Perimeter Ai INC | Austin | TX | — | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.


