# Security One, Inc. jobs and careers

> 0 open roles at Security One, Inc. as of October 24, 2026. Source: https://www.thejobsmap.com/company/security-one-inc

Lic. B03192 and ACR1165 Security One, Inc was founded in 1981 as "Byrd Alarms". It was renamed Security One in 1990. Owner, Roger Byrd, is a retired police officer from the San Antonio Police force. He is a past president of the South Texas Alarm Association and the Texas Burglar and Fire Alarm Association. We are trusted by over 5000 customers who enjoy our professional, yet personal service. In fact, more law enforcement officers use our service in their homes than any other alarm company in San Antonio. Security One has approximately 20 employees, many of which have been in the industry over 20 years. Our office is located on Byrd Blvd in Universal City and our UL Licensed Central Station is located off U.S. Hwy. 281 just north of the San Antonio Airport.

## Key facts

| | |
|---|---|
| Open roles | 0 |
| Headquarters | Universal City, United States |
| Employees | 11 to 50 |
| Industries | Law Enforcement, Security |
| Website | https://securityoneinc.com |

## Leadership

- Barry Marshall, CEO
- Donnetta Byrd, Vice President Of Administrative Services

## Common questions

### Is Security One, Inc. hiring right now?

Security One, Inc. has no open roles listed as of October 24, 2026. Roles appear here as soon as they are posted on Security One, Inc.'s careers site.

### Where is Security One, Inc. headquartered?

Security One, Inc. is headquartered in Universal City, United States.

### Who leads Security One, Inc.?

Barry Marshall, CEO, is at the top of Security One, Inc.'s org chart.

### How do I apply for a job at Security One, Inc.?

Pick a role on Security One, Inc.'s TheJobsMap page and select Apply. Every listing links to the original posting on Security One, Inc.'s own careers site, so you apply directly with the employer.