Private Investigation | Martell Investigations


Located in Los Angeles, California, Martell Investigations provides professional investigative services with resources throughout the entire country and around the world.


Who We Are — Martell Investigations was founded in 1992 and is owned and operated by Jesse A. Martell. Our experienced staff consists of highly motivated individuals with extensive background in subrosa, covert operations, and intelligence gathering. At Martell Investigations, we provide full service investigations to prestigious clients around the world.

What We Offer — Information or evidence that will enable clients to identify risks, make informed decisions, and win settlements or trials.

Why Us — When you select Martell Investigations, a state licensed and insured agency to assist you in solving your problem, you benefit from eighteen years of professional investigative experience.


Featured Services

Our powerful real time GPS trackers with five second updates are tailored to our corporate clients to determine the unauthorized use of a vehicle, stop locations, excessive idle times and speeding. The tracking report will eliminate any discrepancies and disputes.


Our job as your investigators is to make sure that you look good. As an attorney you have very specific needs. Although we pride ourselves on being able to handle whatever needs you may have, there are assignments that we are frequently asked to undertake.

  1. Surveillance — Nothing does a better job of demonstrating the truth than video. When your case involves an individual who is engaged in some activity they deny doing or are prohibited from doing, we get it on film for you.
  2. Interviewing & Statement Taking — We are professionally trained to work with witnesses to determine what they know and to document it in a way that you can work with.
  3. Locates/Skiptrace — Whether searching for a witness to an auto accident or a party to a civil or criminal court proceeding, Martell Investigations can assist you by effectively locating people anywhere in the world.
  4. Background Checks — We offer comprehensive reports that enable clients to identify risks and make informed decisions.
  5. Service of Process — We are prepared to take on the most difficult services and provide the best possible results. Our experience, knowledge, and dedication will become an important asset to your staff.


One of the cornerstones of Martell Investigations is our longstanding tradition of providing investigative excellence to insurance carriers. Our investigative services, which include surveillance, background checks, activity checks, and obtaining recorded statements, have helped claim examiners and defense attorneys from coast to coast to gather the information needed to win settlements.

If you are a claims examiner for State Compensation Insurance Fund, we want you to know that we are approved and authorized by your headquarters office in San Francisco, California to conduct any or all of your investigative needs. You may contact us with your referral at (323)478–0241. The referral may also be faced to this same number.


Employee theft, fraud, misconduct, and accidents cost corporations billions each year. We provide corporate clients with investigations that include surveillance, undercover operations, and interviews that will garner the proof needed to release an employee, provide evidence to law enforcement for prosecution, and support litigation for the recovery of losses.

A sample of our services provided to our corporate clients includes the following:

Human Resources

As a human reources professional, you already know how much damage a bad hire can cause.

It only makes sense to hire the right people and avoid business disruptions, inappropriate behavior, endangerment of co–workers, liability, theft and fraud.

The problem you face is, which firm do you entrust to conduct your background checks and employee screening.

We offer complete pre–employment screening, ranging from a basic overview to a comprehensive background investigation.

Other services include:

Executive Protection

We provide professional executive protection to our clients. Our executive protection specialists are requested and assigned to corporate CEOs and heads of industry throughout the course of an investigation. Some of these assignments include the following:


Council of International Investigations — CII — One of the major functions of this organization is to establish and maintain high standards for the industry on an international level. Membership is permitted only to those who qualify based on their premier reputations for demonstrated integrity, years of service excellence and authority within the industry. Martell investigations is proud of its membership in this elite organization.

California Association of Licensed Investigators — With nearly 1,700 members, the California Association of Licensed Investigators is the largest private investigator association in the world. Association goals are met through educational programs and through aggressively advocating the needs of the profession in the government and state legislature.

Contact Us

Telephone: 323–478–0241

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