Best Private Investigators in Irvine, CA

“After using several investigative companies over the years, Affirm is the only investigative company my firm will use.”

“I was working on a custody case that needed a PI to document and validate information, and I started with Keith as my PI, and he referred me to MJ to use for my PI needs.”

“I recently did some business with Eric and his team at Peterson Investigations who were not only communicative from the start, they sure got the job done and have created an outstanding reputation of service!”

“He assigned Amy, his top PI, and she quickly did a background search on this person and found him to be a career "Criminal" with an astounding number of felonies and a considerable number of convictions and jail time.”

“Whether you're going through a divorce, suspect a cheating spouse of infidelity, need a background check, or any need for investigations, Nestor and his well experienced team will go above and beyond to help you.”

“Very responsive, quality work product”

“I can say without reservation that NTIS has been the most responsive to my needs and they have provided affidavits admissible in court to prove that we did our due diligence in notifying the tenants, thus protecting our clients and their estates.”