Private Investigators Private Detectives locations near Monrovia, CA

Showing 1–7 of 7 results

Monrovia, CA has 7 private investigators private detectives listings across 6 ZIP codes. Details on this page were last refreshed Jul 2026.

Larsen AVR Group

Private Investigators & Private Detectives

📍 225 S Lake Ave #300, Pasadena, CA, 91101

📞 213-533-8440

Private Investigators & Private Detectives

📍 1405 San Marino Ave Ste 100c, San Marino, CA, 91108

📞 626-584-0595

Private Investigators & Private Detectives

📍 Serving Your Area, West Covina, CA, 91792

📞 626-622-5507

Private Investigations Company. Very affordable rates offering services for Surveillance, Cheating spouses, employee/private background checks, etc.

Variety Store Wholesale Merchandise

📍 1700 W Cameron Ave Ste 100, West Covina, CA, 91790

📞 626-855-0057

Private Investigators & Private Detectives

📍 1055 E Colorado Blvd #500, Pasadena, CA, 91106

📞 866-428-4909

We handle every type of case. We are a full service private investigation firm.

Private Investigators & Private Detectives

📍 281 E Colorado Blvd Ste 2347, Pasadena, CA, 91101

📞 877-456-7726

Updated Jul 2026

Security Guard & Patrol Services

📍 1930 S Brea Canyon Rd Ste 220, Diamond Bar, CA, 91765

📞 909-396-9999

Starside's Private Investigators and Security professionals are fully licensed and insured. Starside is available nationwide.

Related Categories

Private Investigators & Private Detectives Security Guard & Patrol Services Variety Store Wholesale Merchandise

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