Matt is a top professional, very efficient at his work. Helped me a great deal with the problem…read morethat I had. He's understanding, has great people skills, and knows how to treat people in difficult circumstances. Reasonable cost too. I would highly recommend him.

I wish I could give Matt 100 stars. He found every thing I was looking for that helped me…read moretremendously. He's very fair in his prices spends quality time on your problem or whatever you want in your needs. He doesn't overcharge you he gives you exactly what you asked for and really good pricing compared to other places. I will be back to use his service again thank you Matt for taking such good care of me you are the best

They are my go to for my legal representation and were very knowledgeable. Give them patience and…read morelearn along the way and they didn't disappoint.

Offer a referral..... called did an intake 9 days ago No Help So Far waiting but getting…read morediscouraged!

Let's see where to begin. So I called in and spoke to RJ who was super helpful and got me in…read morecontact with Lisa to do a serve. They both tag team the one person in efforts to serve. During the time the communication was excellent and they gave updates on every attempt made. Will use in the future, such great service. Thanks Lisa and RJ

I found this company on yelp because I was in need of a PI. Wasn't a fun reason to hire one either…read more They reached out very quickly and connected me with someone on the field. He was professional, thorough, funny, kind, and just really helped this whole miserable experience I went through be not as horrible as it could've been. Highly recommend using them. I hope I won't ever need to hire a private investigator again, but if I do then I will only be using them. Constant communication and great video evidence helped with trust as well. Got exactly what I needed and gave me a great recommendation on wine! Thank you guys for your work.

I was taking a shot in the dark when I messaged Roy asking to process serve a company. Mainly,…read morebecause I'm in California and he was in Sacramento. I hit the bullseye with Sigma Investigations. The process, no pun intended, was seamless, quick, and response time was within minutes. Top tier service at a very reasonable price. Highly recommend and wish him the best of luck for his business.

Excellent communication, service and knowledge. Very professional and friendly. I would definitely…read moredo business with again.

They did great! They were communicative and very efficient. Pricing was fair. I highly recommend…read morethem!

Excellent service. Professional, timely, knowledgeable…read more Really assisted a stressful situation with professionalism. Thank you.

Peter helped me gain 50% custody of my kids during my divorce…read more With his surveillance, professionalism, and keen instincts he gathered enough evidence to prove my ex-wife was doing a bunch of wrong things, showing she is a poor mother and she was alienating me from my kids while she was abandoning them. This also helped reduce her alimony by proving that she was not working, when she claimed to the court she was working full-time. With Peter's help, she finally got what she deserved. Divorce is screwed up for the man if the ex-wife is crazy and makes crazy claims, the man is automatically put at a disadvantage and has to gather evidence and prove he is actually a good dad. The divorce court system is screwed up, but thanks to Peter we proved her wrong.

If i could leave 0 stars i would !! I came here a week ago…read morefor a lie detector test. DO NOT go here for your lie detector tests. If you ask this guy who he is licensed by he gives you the run around . He is not legitimate. He makes up excuses and tries to cover up the truth. What kind of investigator does a 5 minute lie detector test !? This place !!!!! Lie detector tests should take way longer than 5 minutes, it takes at least 5-10 minutes just to get hooked up to a legitimate lie detector machine . They are fraudulent and just want to take your money , do not trust them with your time or your money !! This place is the worst all they do is lie and scam !!!!!! I repeat. DO NOT TRUST THIS COMPANY!

I needed a PI to investigate a business partner abusing our partnership, so i hired Sierra Valley…read moreInvestigation to investigate. From my PI s research, my business partner was not doing any of the work he said he was doing. Instead he was an alcoholic and hard drug user, sleeping in his car during business hours, and abusing our revenue share. Glad i have all of the records cause it helped me terminate the partnership and recover wages/revenue. Anytime i need something done, i call Sierra. Need bank records, phone numbers and the 411, call these people first! Thanks TM!

I used Sierra Valley for a fraud case that we were working on and we couldn't be happier! They were…read morevery professional. We had daily updates and clear understanding on how things were being handled. This allowed us to pursue our case and win. We recommend Sierra Valley to anyone who's looking for great service and communication! Thanks again for everything!

Ive used Ian's services several times in passed 5 years or so and was very satisfied. Everything…read morewas timely and the professionalism was optimal. If you need PI work done, this is the enitity to call. Rates were very competitive as well!

Mr. Williams was very informative on all the questions I had for him. He lead me in the right…read moredirection. He was very professional and understanding of my odd request. I will be using him in the future if I ever need an investigator again.

Our company hired Robert. He's GREAT! He's a great communicator, very direct, and keeps things…read moresimple. He's super nice, and most importantly a well-seasoned pro. He knows what he's doing, and does not mislead you.

Absolutely amazing! I live in Denver and every time I've had to hire Rob to serve my ex-husband,…read morewho by the way doesn't want to be served ANYTHING, Rob makes it happen!!! He's 150% professional, courteous and trustworthy. I originally hired a different company that I found randomly online a couple of years ago. I was ripped off and walked away not trusting any private investigator. Soon after, I had no choice...I had to have my ex served for contempt of court AGAIN. I used Yelp that time and found Rob and this company. I reluctantly hired him at that time for the first time, and it was the best decision I ever made. Thank you from the bottom of my heart, Rob. You are my hero! I thank God all the time for your help.

Anna is a TRUE gem! When you hire a private investigator,…read moreyou think about justice, fair play, due process and someone who is authoritative. But Anna kicks ass at the integrity, empathy and honesty of the your situation. Because Face it. If it comes to you needing a private investigator, it's taken you on something of an extremely emotional ride to get there! She honors that, she honors you and she's down to Make. It. Happen. And oh, she will! We got into business within the first minute of the call. By the way- she came up first as recommended despite a different county and called me on same day. She's AMAZING!!! Go with Anna. My family are more than grateful and happy we found her!!

I hired Anna to find a long-lost friend from grad school (1974) I'd not heard a word from since…read more1987. I'd searched the net for ten years trying to find out something, but he was totally "off the grid." It took several months, but Anna found out that my friend had died in 2001 and was buried in Gainsville, FL. She could have stopped there, but she went above and beyond by finding my friend's sister (whom I didn't even know he had.) She contacted the sister and learned that the sister would be happy to speak with me. I called the sister and we spoke for two hours. It was wonderful to finally get the closure that had eluded me for so long. If you have PI work, call Anna. Done and done.