I would recommend to look for others at the same time as you're talking with Mark because for me he refused to proceed with a job when I asked if it's possible to get an addon of digging into nature of previous misdemeanors (some of which may or may not be juvenile) just before I was ready to sign a contract. Even when I said lets move on without add-on he refused. He also didn't like that I didn't have a lawyer and didn't know exact format needed for a court. Investigation I needed was time sensitive so it by the time I could even find someone else evidence was gone. It seems he's a nice person, but if you have something urgent and high stakes talk with many simultaneously. read more

I worked with Mark Aal of Aal & Associates on a matter in Marin county, and I highly recommend him. Mark was consistently honest and straightforward about what to expect, which I really appreciated. He also brought real empathy and strong morals to the process, treating sensitive issues with respect and care. His communication was excellent, clear, timely, and professional from start to finish. Most importantly, his work product was thorough, well-organized, and genuinely useful. If you need a private investigator you can trust, Mark is a great choice. read more

I called Aal with a personal situation. They are judgmental and not trustworthy. I could avoid them at all costs! They say they are from Tiburon but they act like they are from somewhere else. read more

I was so lucky to come across Mark. I felt so defeated trying to serve my apartment manager. It is a big management company, and they all work remote, making it impossible to locate management. At least I thought it was, until Mark got involved. Once he got on the job, he hyper focused on getting the job done. He like zoomed in to identifying and locating the person. I loved how responsive he was, he kept me up to date with everything. Plus, he was fast!!! And had honest, fair, competitive rates! I feel I can rely on him. And his down to earth personality made him feel like an old friend. I hope I never need a p.i. again, but if I do, I know who to trust. Thanks Mark! read more

Great service, Answered right away with solutions to my needs of a P.I. Highly Recommended!

Mark was paying attention and moreover, he is smart.  Good advice .  Super helpful.  He takes the tough stuff so you're not left on your own. Good going Mark.  Thanks! read more

Mark is very helpful! He was able to answer all my questions and concerns is a quick and professional manner. I will absolutely use him in the future and refer all family and friends. He is very knowledgeable and I appreciate his help!Highly Recommended! read more

Mark is awesome! He was able to answer all my questions and concerns is a quick and professional manner. I will absolutely use him in the future and refer all family and friends. He is very knowledgeable and I appreciate his help! read more

I needed desperate help with my case. I got in contact with Mark and within a day he responded. Once I spoke with him, he was receptive, asking all the right questions, and being extremely helpful. He got back to me with the results I had been looking for for months. I recommend his services 100%. Is absolutely worth it and thorough. I will definitely be using his PI firm in the future. Thank you so much!! read more

These guys are great! Super fast response, quality service and a very fair price! Thank you for all your help!!

Mark was incredible! I suspected my husband of cheating and needed to have the number I was seeing on our T-Mobile bill verified. I reached out to Mark via Yelp and he responded within an hour and quickly cross-referenced two national databases to verify the identify attached to the unknown number. He was fast, professional and extremely responsive. Thank you so much Mark for helping me find the necessary information I needed about who my husband has been talking to! read more

Mark is very friendly, helpful, professional and fast. I highly recommend contacting him to see if he can help with your situation!

In the brief time that I talked to Mark about my particular case, he was very professional, helpful and reliable. He promptly responded to me, answered my phone calls, and followed through with emails. I recommend him to others who are looking for an experienced and a direct private investigator. read more

I shopped around to get some help with locating someone, and spoke to several people about what I needed. Mark was not only prompt in getting back to me, but he was also extremely thorough. He even followed up... Mark was 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 Mark didn't pull anything like that. There were no hidden fees like the others. Mark is a really trustworthy person and I'd use his services again if need. I would highly recommend him if you're looking for a PI. read more

Mark was very quick to repond and was professional. He is very easy to understand and explained how the process works. Just like a previous review said, he isn't out to nickle and dime you. I highly reccomend. read more

I reached out to Mark to find where my exhusband lives to serve him court papers. He was very responsive and reourceful!! He responded within minutes!!! I highly recommend him. read more

Excellent expert-level services and immediate responses - we are now able to sleep at night, having our questions answered with a very thorough and thoughtful assessment. I highly, highly recommend this leading provider of investigative research and expert in personal and family safety. Thank you so much! read more

Mark is a solid stand-up guy who knows his business. He was quick to respond, quick to gather necessary information, quick to provide answers, and quick to put me at ease. He has a way of letting you know you can trust him. I wouldn't think twice about using his services again or recommending him to a friend and his price structure is more than fair. Mark, thank you for your professional advice, demeanor, and help! read more

I needed help running information on someone I thought might be scamming me. Mark hooked me up with everything I needed. Great information, great value. read more

I was beyond impressed with Mark. I had some unsettling circumstances and I contacted Mark to help me look into things - I wasn't sure what to expect when I was working with a private investigator for the first time, but I'm really glad Mark was the person I found. He was responsive, thorough, and incredibly kind and helpful beyond even the requests I had for him. Based on the questions he asked me, the expertise he shared, and the quality of his service, I could put my concerns to ease. It was BEYOND worth it. I have Mark's number saved in my phone for future reference or for any friends who might need his service. Thank you Mark! read more

Mark is a very competent and reliable PI, and overall just a good human being. I wound up in the middle of an unfortunate situation a while back, and I never got proper closure. I was concerned for someone's well-being, and Mark was very receptive of where I was coming from. This was my first time reaching out to a PI and Mark was a great first exposure. He was always very attentive and asking the right questions, while also having the right amount of skepticism that I imagine only comes with years of doing this kind of work. He is a quick responder and very communicative about when and how he is going to do things. Lastly, he was always upfront about costs and consistently had my best interests in mind, in terms of the cost of work and of the mental burden the situation had on me. I highly recommend his services; he takes his work very seriously! read more

Mark was a pleasure to work with. He was attentive, polite, and professional. Lastly, he resolved the issue that seemed to have other investigators handcuffed! I would highly recommend Aal & Associates for your investigative needs. read more

Never having used a company like aal & associates, Mark made feel very at ease. He guided me throughout the whole process and gave me the information I needed. read more

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 Mark! read more

Mark was excellent. Prompt, fair, enjoyable. He did what I needed quickly and got right back. I will definitely use Mark again when needed.

I called Aal & Associates to inquire into a Personal Investigation matter. Within minutes of our call, Mark was able to find what I was looking for. I called several Personal Investigators prior to contacting Aal & Associates, and Aal & Associates was by far the most friendly, efficient and helpful. read more

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

5+ stars. Mark Aal was extremely professional, courteous and fast. He was able to resolve my need in a matter of days. He gets my highest recommendation. Thank you Mark. read more

Mark, the owner of this company was incredibly helpful when he didnt have to be.This really reflects on his character.I would not hesitate to use this companys services based on my experience.A good person ,a solid company,very highly recomended read more

Mark is friendly, fast, and efficient. He was able to obtain the information I needed within 10 minutes! I'll definitely continue using the services of Aal & Associates to aid my business. read more

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. read more

Mark, is amazing. He and his staff exude professionalism. They are efficient and timely. I highly recommend this company. I am 100% satisfied and will continue to utilize the services from wherever I am. read more