THE CASTELLAN STANDARD · 01
Disciplined protection. Operational confidence.
Security for controlled-access environments where uptime, safety and accountability matter.
DISCIPLINE. INTEGRITY. SERVICE.
OUR SECURITY SOLUTIONS
The right protection.
For your world.
Every site has different needs. We listen, assess and build a security plan around yours.
View all servicesIndustrial & Critical Infrastructure
Security for controlled-access environments where uptime, safety and accountability matter.
Explore serviceParking Rule Enforcement
Help keep parking areas accessible and available for the people who should be using them.
Explore servicePrivate Property Security
Professional coverage for residential communities, HOAs, vacant properties and construction sites.
Explore servicePrivate Business Security
Protect employees, customers, inventory and reputation with officers who understand courtesy as well as security.
Explore serviceHealthcare & Facilities
Courteous, professional coverage for clinics, offices and shared facilities.
Explore serviceEvent Security
Coordinated security for corporate gatherings, festivals, concerts, weddings and community events.
Explore service
SERVICE IS IN OUR DNA
Military values. Everyday peace of mind.
Castellan Protective Services brings military discipline, integrity and accountability to private security. Based in San Ramon, California, we build coverage around the people and places that matter to you.
- Direct access to company leadership
- Site-specific coverage and planning
- Consistent reporting and clear communication
A CLEAR PATH TO PEACE OF MIND
Prepared for your priorities.
We listen
Tell us about your property, people and security concerns.
We assess
We review your site and identify the coverage that fits.
We protect
Your tailored plan brings a professional presence and clear communication.
EXPERIENCE BEHIND EVERY DECISION
Meet the people
behind the promise.
Military, government and private-sector experience. A shared commitment to protect and serve.
Meet our leadership
Michael Harrison
Qiamuddin Safi
Douglas Thurston