Serving the Greater San Francisco Community

Serving Corporations, Attorneys, Insurance, and More

The Discreet, Professional P.I. You Can Trust

Aal & Associates

There’s no private investigation firm in the greater San Francisco region that’s as committed, discreet, and professional as Aal & Associates!

With more than 2 decades of experience and over 18,000 hours of documented covert surveillance, Aal & Associates is the discreet private investigator you can trust who is committed to bringing you results and a resolution to your inquiries. We serve corporations, attorneys, private individuals, and more, so we invite you to meet with us today.

About Us

Dedicated to providing experienced infidelity investigations, insurance fraud investigations, and more to the greater Marin County.

How We Work

Our partnership begins with a free consultation to determine your objectives. We then design a custom plan that fits your budget and timeframe.


Visit our online payment page to make a payment via PayPal or view details regarding other accepted payment methods.

Why Our Customers Love Us!

Responsive, Authentic, Professional, No Hidden Fees, High Intellect to Understand Quickly and took Action without delay! That is the experience I had. Mark, was a dream to work with. Especially, when you reach out to a complete stranger with such a personal matter, I felt Mark was professional, and a great communicator that created comfort in just knowing his stuff as a PI, as well as getting things done in a timely fashion. Our budget had to increase, yet he openly communicated ahead of time, so removing surprises. He is reliable and follows through. I hope I don't need a PI again, yet if I do, without question, I will be calling Aal & Associates.

Constance S.

Canida on 8/09/2021

I shopped around to get some help with locating someone and spoke to several people about what I needed. Aal & Associates was not only prompt in getting back to me but were extremely thorough. They even followed up, going above and beyond in being helpful. It felt like all the other PIs wanted to nickel and dime me for something super simple, but Aal & Associates didn't pull anything like that. There were no hidden fees like the others. Mark, the owner, is a really trustworthy person and I'd use his services again if needed. I would highly recommend Aal & Associates if you're looking for a PI.

Jen H.

San Francisco, CA on 7/22/2021

I highly recommend Aal & Associates. Mark is professional, courteous, fast and efficient. It is very reassuring to know an honest competent PI that has very reasonable rates too!

Kit C.

Belvedere, CA 2/2021

Aal & Associates was extremely professional, courteous and fast. They were able to resolve my needs in a matter of days. Aal & Associates gets my highest recommendation. Thank you Mark!

Paul B.

Larkspur, CA on 1/8/2021

Aal & Associates did a fantastic job on my case. I was having a problem finding someone and I used Yelp to find an investigative service that could help me. Aal & Associates was the first to reach out and assist me. In two days, they were able to resolve my case and other issues. Thanks Aal & Associates for doing a great job and your prompt response.

Joe H.

Hayward, CA on 11/02/2017

We used Mark's firm, Aal & Associates, for background searches prior to The Realreal going public. Aal & Associates did an amazing job of helping us hire the best talent across The RealReal's departments. I highly recommend his firm.

Julie Wainwright CEO/Founder at The



855-WE SOLVE (855-937-6583)
Local: 650-288-9868


1606 Juanita Ln
Tiburon, CA 94920

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