Ispynserve4u Process Service / Mobile Notary
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Best Private Investigators in Mesa, AZ
15 agencies listed · 9 in Mesa · 6 open 24/7 · 9 open weekends · 13 rated 4.5+
Data verified October 17, 2026
Mason Investigative Solutions
“I have worked with Steven on numerous occasions and have found him to be prepared, professional and with strict attention to detail.”
Aegis Group Global
“Abboud gave accurate and useful details on a background check and explained details.”
Affordable Private Eyes
“I have used Affordable Private Eyes on several occasions for background checks and other services… Patricia is always professional and keeps me updated, and her services are reliable and affordable!”
Rent Perfect
“I onboarded my last tenant from background to lease in less than 8 hours seemlessly all from my phone.”
Desert City Investigative & Professional Services
“I have been having a lot of problem with finding my person and they find him so fast and was able to serve without a problem.”
The 15 agencies on this page are the private investigators listed for Mesa, AZ. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.
Area overview: Mesa, AZ
9 of the 15 agencies we list are based in Mesa; the other 6 serve Mesa from Chandler (11 mi), Tempe (12 mi) and Scottsdale (21 mi). 14 of the agencies on this page have a rating, from 4.0 to 5.0 across 322 reviews; 2 have 50 or more reviews and 13 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (97%), responsiveness (90%) and quality (74%). 6 are open around the clock; 9 are open on Saturdays and 7 on Sundays. 7 show a license on their websites. Domain records put 10 websites of the agencies on this page at ten or more years old; the oldest dates from 1999. 6 offer urgent consultations and 4 offer a free initial consultation. We have a website on file for all 15 of the agencies on this page; 12 publish a contact page and 12 list a public email. We count these figures across the agencies on this page; distances are straight-line, and hours and prices change, so confirm the details with the agency before you book.
Which investigators listed for Mesa describe their work online?
All 15 agencies on this page have a website on file. Those pages are where an agency states its license, the kinds of investigation it takes on, and whether it works mainly for attorneys, for companies or for private clients. That last point changes how a report gets written.
Abacus Forensic Polygraph
Lien & Bond Investigations
“The information I needed for a paternal relative was presented to me as quickly and thoroughly as possible, leaving no room for questions, as all of the information he provided answered my inquiries before I'd even asked.”
Arizona Investigative Associates
Urban Spy - Licensed Private Investigator in Arizona
“Called Kathy late in the evening needing to find a person and by the morning she had found her person for us.”
Desert Anchor Investigations
“I would recommend there service to anyone and they responded within a days notice.”
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Desert Private Investigations
“Donna was very professional, helpful, dedicated and thorough.”
Full Armor Protection Group
Covert Special Investigations
“Brian was amazing, helpful, very quick on reply's, very quick with in 24 to 48 hours I had the answers I needed to find my birth aunt at the very least and some day to meet my birth mom.”
R3 Investigations
“Just had a few questions that were professionally addressed quickly.”
Why these companies made our list
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