Cornerstone Investigative Services

I needed to find someone that I served with in the military approximately 20 years ago. This person has a very common first and last name and I was unable to find them through the Internet. I did...

I called for an initial consultation and I learned more in a 12 minute free conversation than I was able to discover on my own in the last 6 months. Duane sent me a copy of court actions and an...

Unbelievably great attitude and service. I was trying to connect with an ex-wife from 40 years ago, and after months and months of work trying to locate her, was ready to give up. She has been...

I am an attorney in San Jose, CA and was in need of locating a person in Oregon. I hired Duane with Cornerstone Investigative Services to assist with the search. Since my first interaction with...

We called Cornerstone Investigative Services from another state. Our request turned out to be quite simple for them to accomplish, but it was impossible for us to get the information we needed on...