Experienced Investigation

MARLIN’S SPECIAL INVESTIGATIONS, INC. (MSI) is an Iowa Private Investigative Agency located in Cedar Rapids, Iowa. Established in 1994, MSI offers a wide variety of Investigative Services for Attorneys, Insurance Companies, Businesses, Private Individuals and other Private Investigative Agencies. Although we are located in Cedar Rapids, we work with clients all over Iowa and the entire U.S.

Our investigators are licensed, bonded, and insured. The State of Iowa requires all private investigators be licensed by the Iowa Department of Public Safety. All reports and correspondance with the client are kept confidential. The initial consultation is free so please call to see if we can assist you. We have worked thousands of cases over the years, and use the knowledge, skill, and experience acquired over that time to work successfully on your case. Our investigators have testified on numerous cases and can testify for your case if needed. MSI uses video, covert video, GPS trackers, cameras and database resources to meet your investigative needs.

Jeff Marlin, a former police officer is owner of MSI and has over 25 years of investigative experience. Mike Marlin, a retired Iowa Division of Criminal Investigation (DCI) Special Agent has over 40 years of investigative experience. Mike is currently retired from MSI but remains on as a consultant. Please contact us to see if we can assist you with your case. If you have a question, check our our FAQ.

Contact Us

Marlin’s Special Investigations
PO Box 11183
Cedar Rapids, IA
52410-1183
Office: 319-373-5025
Toll Free: 866-373-5440
Email: jmarlin@marlinsspecialinvestigations.com
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Iowa Association of Private Investigators
International Intelligence Network

Learn more about us and how we can help you.

Michael and Jeffrey Marlin

A Family Business

MSI was founded by my father Michael in 1994, after a 24 year career with the Iowa Division of Criminal Investigation. In 2014 our firm was highlighted in the Cedar Rapids Gazette. Read more about our business and the experience and insight we can bring to your investigative needs.

Iowa Judicial Building by Phil Roeder

Real World Experience

We don’t just sit in a van and hit record. From surveillances to missing persons and criminal defense investigations, we keep busy! Recently, a homicide we investigated was featured on Dateline NBC. Read more about some of our memorable cases, and then contact us to see how we can put our experience to work for you.

Jeffrey Marlin

We Can Help You

No one can do it all, but over the years we’ve learned a lot. Our investigative services are used by attorneys, corporations, small businesses and the general public. And we partner with other agencies to ensure your needs are met cost effectively.

Specializing in service to the following cities:
Cedar Rapids • Dubuque • Iowa City • Coralville • Davenport • Des Moines • Burlington • Fort Madison • Keokuk • Ottumwa • Ames • North Liberty • Charles City • Mason City • Manchester • Maquoketa • Clinton • Anamosa • Bettendorf • Muscatine • Mount Pleasant • Independence • Decorah • Urbandale • Fairfield • Oskaloosa • Marshalltown • Waterloo • Cedar Falls • Council Bluffs • Sioux City • Fort Dodge • West Branch • Eastern Iowa and the surrounding communities