Best Private Investigators near Santa Monica, CA
3 of these agencies are based in Santa Monica; the others serve Santa Monica from towns including Los Angeles (8 mi), Beverly Hills (6 mi) and Woodland Hills (11 mi).
2 open 24/7 · 12 open weekends · 12 rated 4.5+ · 9 show a license
Data verified October 18, 2026
Sapient Investigations
Bernard Cane
Millergroup Intelligence
Security Guard Solutions
Sunset Blvd. Investigations
The 15 agencies on this page are the private investigators listed for Santa Monica, CA. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.

Area overview: Santa Monica, CA
12 of the 15 agencies on this page have a rating, from 4.5 to 5.0 across 677 reviews; 5 have 50 or more reviews. When clients rate these agencies on specific qualities, they most often praise professionalism (96%), responsiveness (96%) and quality (88%). The topics that come up most in reviews of the agencies on this page are "results", "attention to detail" and "communication". 2 are open around the clock; 12 are open on Saturdays and 10 on Sundays. The services the agencies on this page list most often on their websites are missing persons (3), asset searches (2), background checks (2), child custody (2) and insurance fraud (2). 9 show a license on their websites and 1 has a BBB rating of A or A+. Domain records put 12 websites of the agencies on this page at ten or more years old; the oldest dates from 1996. 2 offer urgent consultations and 4 offer a free initial consultation. We have a website on file for all 15 of the agencies on this page; 14 publish a contact page and 11 list a public email. We count these figures across the agencies on this page; distances are straight-line, and hours and prices change, so confirm the details with the agency before you book.
Why are investigation agencies outside Santa Monica shown here?
3 of the 15 agencies have an address in Santa Monica. The others come from other towns. Investigators travel to the subject, so an office one county over is rarely the issue. State licensing is the thing to check.