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Peterson Investigations

(50)

Security
Integrity
Matter

“Peterson Investigation was able to achieve exactly what we needed to submit with our legal court documents, with quick response time and even rush services!”

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Clete Security Services, Esq.

(12)

Patrols
Company

“Currently, Clete Security Services, provides our Church/Preschool with early morning and evening patrols, primarily to provide a safe environment for our staff & volunteers as they begin/end their day.”

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Brapga Security Systems

(15)

Quote

“I called a few days ago and spoke with Santos, he gave me good information, he was interested in an event service, he explained its security structure very well and finally we reached an agreement, the day of the event arrived and I was satisfied.”

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Lockjaw Legal Process Services

(5)

Court Filing and Document Retrieval, Skip Tracing, Service of Process

“Very professional, thorough and determined.”

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Excaliber Investigations

(1)

“Reliable, trustworthy and highly recommended investigated service.”

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Tag Force Security & Patrol Services

(3)

Why Choose Us

“This company is so great the supervisor is someone who will do the most for you and asks for a tiny return just show up and do your job I am so greatful and so blessed to be there thank you Tagforce Positive Responsiveness, Quality, Professionalism, ...”

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Schubert Investigations

(24)

Know
Expert
Expectations

“I would like to thank him individually and the entire company for delivering such outstanding and professional service for their clients and know that this brief review cannot encompass the full experience of being helped when so many other people ha...”

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California Recovery Investigations

(7)

Process Server

“I was having some questions about whether or not my significant other was stepping outside of our relationship, so I hired Kevin at California recovery investigations.”

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Elevate Investigations

(6)

Background Check
Information

“Super professional, fast, and thorough!”

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Logic Investigations

(2)

“He is professional, great at communicating and Thorough.”

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Pyrocop

(1)

“Called for sprinkler products, which they don't sell, but unlike most other places I called, he used his expertise answering a few questions and helped me find them.”

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A Pineda Polygraph Services

(1)

“Even though I gave him a hard time due to stress was extremely helpful and he possibly saved my marriage of 8 years.”

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PAX Investigations

(4)

Attention
Team

“I have utilized their services on multiple occasions and each time I have been throughly impressed with the professionalism and attention to detail their team has brought.”

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Inland Professional Investigations

(4)

“Very happy with how Inland Professional Investigations handled my background investigation.”

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Pac Rim Investigative Services Group

(1)

“Good people”

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Fugitive Recovery Agent

(1)

“No fuss”

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Smarthire

(1)

“Back ground checks and private investigating”

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XPD Investigations

“XPD Investigations conducts background checks of applicants for the positions of Police Officer, Deputy Sheriff, Firefighter, Private Security, Dispatcher, as well as Civilian positions within Southern California.”

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Paul Sanchez Investigations

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I. Cornejo Investigations

“FactProof Solutions is a family owned and operated business. Private Individuals, Attorneys and Businesses are among the clients we work hard to serve with the utmost expertise. We are a full service Investigation Firm and have over 15 years of Inves...”

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Professional Solutions

“Professional Solutions is a full service corporate investigative agency, catering to employers. By conducting a professional investigation, the employer is able to get an “inside look” at what is really happening within the company on a day-to-day ba...”

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Joe Mar Polygraph & Investigation Services

(4)

Personal Protection, Electronic Sweeps, Investigations & Surveillance

“And Highly recommended to Anyone that needs Accurate Results.”

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Streamline Investigations

“Find out how an insurance fraud investigation is conducted and learn about types of insurance fraud, including car, health, home, life, insurance company, and workers compensation fraud.”

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Cobalt Consulting and Investigations

“Our Investigators expertise include; Anti-piracy, Computer Forensics, Corporate Investigations, Employment Backgrounds, Litigation Support Services & Strategies, Threat Assessment, Executive Protection, Work Place Violence, Workers Compensation Inves...”

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Average Cost	$1263
Minimum cost	$316
Maximum cost	$9995
Avg Per Hour Rates	$132

Best Private Investigators in Diamond Bar, CA

The highest-rated Private Investigator & Detective companies out of 149 vetted & reviewed in the Diamond Bar area.

Peterson Investigations

Clete Security Services, Esq.

Brapga Security Systems

Lockjaw Legal Process Services

Excaliber Investigations

Tag Force Security & Patrol Services

Schubert Investigations

California Recovery Investigations

Elevate Investigations

Logic Investigations

Pyrocop

A Pineda Polygraph Services

PAX Investigations

Inland Professional Investigations

Pac Rim Investigative Services Group

Fugitive Recovery Agent

Smarthire

XPD Investigations

Paul Sanchez Investigations

I. Cornejo Investigations

Professional Solutions

Joe Mar Polygraph & Investigation Services

Streamline Investigations

Cobalt Consulting and Investigations

Private Detective Services in Diamond Bar, CA Cost Estimates

Why these companies made our list

Private Investigation and Detective Agencies near Diamond Bar

Popular in Diamond Bar