3 Best Private Investigation Service in San Francisco, CA

Expert-recommended Top 3 Private Investigation Service in San Francisco, California. All of our private investigators actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

3+ YEARS IN TBR
CALL EMAIL

AAA DISCREET INVESTIGATIONS

300 Broadway, Suite 8,
San Francisco, CA 94133 Directions

Since 1981

Specialty:

Cheating Spouse Investigation Child Custody Investigation Asset Search Background Checks Surveillance Specialist Polygraphs

" AAA Discreet Investigations provides investigation services to your valuable clients. They can clear up the uncertainty that is bringing you down. They offer a wide range of investigation services backed by a team of professional private investigators. These investigators possess extensive expertise in Police Science as well as complex civil and criminal investigations. AAA Discreet Investigations specializes in gathering information, conducting surveillance, and uncovering facts related to personal, legal, and corporate matters. They provide a person’s history, including criminal records, financial status, and personal details. They assist attorneys by gathering evidence for court cases according to their specific needs. They also offer free consultations to meet their clients' requirements.

2026 Highlights: With 35 years of police acumen, AAA Discreet Investigations can clear up the uncertainty that’s bringing you down. "

Reviews | Play Video | Write a Review
License #25424

Contact:

(650) 219-5349

Open 24 Hours

TBR® Inspection Report:

San Francisco & Bay Area Investigations - San Francisco, CA Private Investigation Service - Company Logo
CALL EMAIL

SAN FRANCISCO & BAY AREA INVESTIGATIONS

2030 Union Street, Suite 202,
San Francisco, CA 94123 Directions

Since 2014

Specialty:

Background Checks Surveillance Corporate Investigations Family Law Investigations Workers' Compensation Investigation Service of Process and Locating Difficult People Personal Injury Investigations AOE/COE Investigations EEO Investigations Asset Investigations Missing Persons Infidelity Investigations/Cheating Spouses Vehicle Collisions Investigations Bug Sweeps and Technical Surveillance Countermeasures (TSCM) Criminal Investigations Undercover Investigations Mystery Shopper Threat Assessment Theft Investigation Litigation Support Landlord/Tenant Issues Custom Investigations

2026 Highlights: San Francisco & Bay Area Investigations is a full-service private investigation service serving San Francisco & the Greater Bay Area. The firm is composed of a team of dedicated professionals with experience in all types of cases, ranging from domestic to workers’ compensation, from covert surveillance to counterintelligence. Their team of investigators includes former police officers and other law enforcement professionals, insurance investigators, and experienced private investigators. They offer a full range of high-quality, professional investigation services. San Francisco & Bay Area Investigations is licensed by the California Bureau of Security and Investigative Services and insured in accordance with California regulations. The firm offers a free consultation.

Reviews   |   Write a Review
License #189051

Contact:

(415) 307-1012

Open 24 Hours

TBR® Inspection Report:

Denver B. Moore Investigations - San Francisco, CA Private Investigation Service - Company Logo
8+ YEARS IN TBR
CALL EMAIL

DENVER B. MOORE INVESTIGATIONS

588 Sutter Street,
San Francisco, CA 94102

Since 1969

Specialty:

Infidelity Cheating Spouse Investigations Background Screening GPS Tracking Services Child Custody Investigations Missing Person Locates Open Source Intelligence Research

" Denver B. Moore Investigations provides confidential investigations and related services to commercial and private clients. They are licensed by the California Bureau of Security and Investigative Services and fully insured for your protection. They also offer an extensive range of other investigative and related services, everything from missing person locates and background checks to process service and bug sweeping. Their specialization lies in covert monitoring, particularly in cases involving family matters, domestic issues, and suspicions of infidelity. Denver B. Moore Investigations' trained and experienced private investigators know where to look and how to obtain the information you need. They offer a free and confidential consultation.

2026 Highlights: Denver B. Moore Investigations is a full-service firm of private investigators serving the San Francisco area and beyond for over 50 years. "

Reviews   |   Write a Review
License #PI-9341

Contact:

(415) 978-9755

Open 24 Hours

TBR® Inspection Report: