San Mateo, California Diligent Search and Inquiry Services for Locating Debtors and Judgment Defendants

When a debtor cannot be located, service of process results in a Not Served, Non Est, or Not Found return, or judgment enforcement efforts come to a standstill, our San Mateo, California Diligent Search and Inquiry services provide the investigative support necessary to move your matter forward. We conduct comprehensive investigations designed to locate debtors, judgment defendants, borrowers, guarantors, and other individuals whose whereabouts are unknown. Our objective is to develop new investigative leads, verify current addresses whenever possible, and document meaningful search efforts that support debt collection and continued legal proceedings.

Experienced Diligent Search Services for Creditors, Collection Attorneys, Lenders, and Judgment Holders

Our Diligent Search and Inquiry services are frequently utilized after conventional skip tracing and service of process efforts have been unsuccessful. Using public records, proprietary investigative databases, address history analysis, employment research, court filings, business records, and other lawful investigative resources, we work diligently to identify current addresses, uncover new investigative leads, and determine whether additional service opportunities exist before further collection or judgment enforcement action is pursued.

Comprehensive Debtor Locate Investigations Supported by Professional Documentation

Every investigation receives individualized attention and a structured investigative strategy tailored to the circumstances of the assignment. We specialize in locating debtors who have relocated, abandoned known addresses, intentionally concealed their whereabouts, or cannot be located through conventional methods. When a debtor cannot be found after a thorough investigation, we provide professionally documented findings and, when appropriate, a court-compliant Affidavit of Diligent Search and Inquiry detailing the investigative efforts performed, records examined, and results obtained.


Get started immediately. Need the assistance of an experienced Diligent Search investigator to locate a debtor, verify a current address, request pricing, or discuss a judgment enforcement or debt collection matter? Complete the form below and receive a prompt response from our investigative team within minutes.



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Fire & Rescue

Admin/ Fire Prevention

2121 S El Camino Real, Suite 100

San Mateo, CA

San Mateo Consolidated Fire Department

CFS Belmont 17

320 Paul Scannell Dr

San Mateo, CA

San Mateo County Fire Department

CZU Belmont FS 17

320 Paul Scannell Dr

San Mateo, CA

CAL FIRE San Mateo - Santa Cruz

Fire Station 21

120 S Ellsworth Ave

San Mateo, CA

San Mateo Consolidated Fire Department

Fire Station 23

31 27th Ave

San Mateo, CA

San Mateo Consolidated Fire Department

Fire Station 24

319 S Humboldt St

San Mateo, CA

San Mateo Consolidated Fire Department

Fire Station 25

1455 Shafter St

San Mateo, CA

San Mateo Consolidated Fire Department

Fire Station 26

1500 Marina Ct

San Mateo, CA

San Mateo Consolidated Fire Department

Fire Station 27

1801 DE Anza Blvd

San Mateo, CA

San Mateo Consolidated Fire Department

Public Libraries

HILLSDALE BRANCH LIBRARY

205 W. HILLSDALE BLVD.

SAN MATEO, CA

Telephone: (650) 522-7880

MARINA BRANCH LIBRARY

1530 SUSAN COURT

SAN MATEO, CA

Telephone: (650) 522-7890

SAN MATEO PUBLIC LIBRARY

55 WEST THIRD AVE.

SAN MATEO, CA

Telephone: (650) 522-7800

Colleges & Universities

College of San Mateo

1700 W Hillsdale Blvd

San Mateo, CA

Telephone: (650) 574-6161

Official Website

San Mateo County Community College District Office

3401 CSM Drive

San Mateo, CA

Telephone: (650) 574-6550

Official Website