Najar Investigations

Private Investigations Firm With Over 50+ Years of Experience

What We Do

We provide Investigative Solutions for all your needs!

Najar Investigations is a full-service investigations firm licensed and insured in the State of California and Arizona. Our investigators are active or honorably retired law enforcement agents, with unimpeachable background and extensive investigative experience. All of our investigations are conducted confidentially, with integrity and professionalism.


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Client Referrals

Professional Investigation Services

Najar Investigations is a private investigation firm providing professional investigation services, since 2012 with over 50+ years of experience. We offer investigative services in California and Arizona. We conduct investigations in a careful and prudent manner in order to keep confidential or to avoid embarrassment. Your matters will be given the up most priority and we for the needed task. You can rest assure that the investiagtion will be conducted with confidentiality, integrity, and professionalism.

At Najar Investigations, we provide accurate results by conducting a detailed analysis of the target and scrutinizing all the related things with solid care and determination. Retaining our investigative services won’t disappoint you.

Experience Matters

Private Investigation Firm that Gets Results

Get the Assistance Needed by the Best Investigation Firm

Najar Investigations is private investigation firm offering professional investigative services in California and Arizona. We are keen to resolve your issues by investigating your target and giving you meaningful results. We help our clients by providing criminal, infidelity, family, fraud, workplace investigations, etc. 


Additionally, we offer bilingual investigators who are fluent in all the commonly spoken languages. Reach us today by calling us at +1 (855) 462-6300  and getting the assistance of the best investigation firm in California and Arizona.

Our Services

During our consult we tailor our investigation to custom fit your needs


A background check is an investigation into a person’s professional and personal history that validates or disproves their character and identity.

The main goal of the detective and prosecutor working on a criminal case is to secure a conviction. We understand this philosophy, and this enables us to work with criminal defense attorneys to mount the best defense possible.

From research to fieldwork, all of our field agents are former law enforcement agents and have the experience to assist in almost any matter.


We take custody, cohabitation, infidelity, and other family law cases seriously. We take pride in the fact that our track record in obtaining strong evidence, as well as financial intelligence, has resulted in numerous cases concluding in favor of our clients.


Resolving any case of fraud is not a simple task, and it depends on the knowledge, skills, and experience of the fraud investigators involved. This experience also makes reporting on the fraud more complete and extensive.


Our team has the skills, knowledge, and experience to conduct true covert surveillance without being compromised. For our clients this means they get the evidence they need, when they need it.

Our Firm In The Media

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Reviews From Our Clients

I would like to thank Najar Investigations for all the help they provided me, I would highly recommend them. They called me back promptly and were very professional also provided me with many suggestions for my situation.
Charlene F.
Mr. Najar worked with diligence and professionalism. He took the sensitivity of my matter seriously and left me with the confidence to trust his business as honest and ending with sufficient results, no matter the outcome. There’s no need for me to go elsewhere for a second opinion nor will there be any other investigator I would ever be inquiring from. Thank you very much Najar investigations. I look forward to our business in the future.
Yvonne G.
Najar Investigations is very organized and thorough. Mohammed is the epitome of a professional who is very skilled and knowledgable on his field. I would highly recommend them to my friends and family!
J. Marlowe B.

Proudly Serving Areas

Bilingual investigators are available who are fluent in Hindi, Urdu, Mandarin, Japanese, Korean and Spanish. All of our investigators are licensed to carry a concealed weapon.
Associations & Memberships
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Contact Our Private Investigators Today!

Please Email or Call us for a Free Consultation