About
Atherton Investigations, a licensed and insured agency (P.I. License #27078, P.P.O. License #16835, R.P.S. #446) provides the finest services to both the private citizen and corporate clients. In this rapidly changing world, we understand your need for protection, investigations and security services that are both exemplary and cost effective. We have the experience, training and expertise to deliver quality services that keep our clients safe.
Services
- Private Investigations
- Threat Assessment and Management
- Security and Risk Assessments
- Executive, Personal or Dignitary Protection
- Safe Travel Planning and Preparation
- Workplace Violence Prevention
- Public Safety Pre-Employment Background Investigations
- Disaster Preparedness/Crisis Management
- Attorney Support
- Process Service
- AOE/COE – Personal Injury investigations
Service Guarantee
First attempts are made within 48 hours. Rush service available.
Areas of Coverage
- San Mateo County
Affiliations
- C.A.L.I.
Member Info
- Contact:
- Clark Madsen
- Website:
- Visit Website
The Lawgical Promise guarantees this member has been pre-screened to verify their qualifications.
- E&O Insured
- Visa, MasterCard, Check
- Service Guarantee
- Website

