GS1 Group
Security and Investigations • 
3933 Foothill Blvd, Suite B, United States • 21-50 Employees
Company overview
| Headquarters | 3933 Foothill Blvd, Suite B, Glendale, California 91214, US |
| Phone number | +18669419111 |
| Website | |
| NAICS | 5616 |
| SIC | 738 |
| Keywords | Investigations, Security, Estate And Corporate Protection |
| Founded | 2006 |
| Employees | 21-50 |
| Socials |
Key Contacts at GS1 Group
Mike Severo
Chief Executive Officer
Susan Upton
Account Director
GS1 Group Email Formats
GS1 Group uses 1 email format. The most common is {first initial}{last name} (e.g., jdoe@gs1security.com), used 100% of the time.
| Format | Example | Percentage |
|---|---|---|
{first initial}{last name} | jdoe@gs1security.com | 100% |
About GS1 Group
At GS1 Group, we provide discreet, high-level protection for people, property, and proprietary information. Our mission is simple: safeguard what matters most without disruption. We specialize in executive protection, insider risk mitigation, security, and strategic threat response. Whether supporting corporate leaders, managing sensitive terminations, or countering industrial espionage, we bring unmatched professionalism and quiet precision to every assignment. Our team is composed of experienced protectors, investigators, and advisors who understand the importance of trust, readiness, and discretion. We operate with confidence under pressure and align with our clients’ values, culture, and reputation. We do more than show up. We anticipate, plan, and lead. From Silicon Valley to global operations, GS1 Group supports organizations that expect proactive solutions and unwavering reliability. Our clients include high net worth individuals, corporate executives, legal teams, and security leaders who value results and discretion in equal measure. If your organization is navigating sensitive security challenges or simply needs a trusted partner, we are ready to help. Learn more at gs1security.com PPO License #15941 CA License #25179
GS1 Group revenue & valuation
| Annual revenue | $37,500,000 |
| Revenue per employee | $1,786,000 |
| Estimated valuation?This valuation is estimated based on industry average for the Security and Investigations industry and current estimated revenues | $120,000,000 |
| Total funding | No funding |
Employees by Management Level
Total employees: 21-50
Seniority
Employees
Employees by Department
GS1 Group has 10 employees across 3 departments.
Departments
Number of employees
Funding Data
GS1 Group has never raised funding before.
Saudi Arabia
Canada
Australia
Spain
Frequently asked questions
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