We are your Grand Rapids, MI Private Investigators. From infidelity, divorce and custody to corporate investigation and GPS tracking, we are your personal private detectives!

Here at Signature Investigations Group, what you need is what is important to us. We work to obtain the information that will bring out the truth.

We assure you that your privacy is of the utmost importance, and all information will be kept strictly 100% confidential. If you feel we can be of assistance or would like more information on our services, call and speak with one of our licensed private investigators, for a FREE consultation.

We cover the Grand Rapids, MI are as well as the entire state of Michigan.

We specialize in both corporate and domestic investigations, but have a broad spectrum of experience. Our Private Investigator services include GPS tracking, custody cases, corporate investigations and much more!

SIG is a fully licensed, bonded and insured surveillance and private investigations firm. We were founded on the principles of professionalism, integrity, dedication and down right honest reporting. These values lead our investigations and our “Signature” is on every case we take!

Check out our new Spy Shop today!

Please feel free to email or call us anytime at: (616) 466-4274 (4-A-PI).
PI License Number
MI 3701-206238