Welcome to Blueline Investigative Services

The Investigation Professionals

About Us

Our Management

Our Founders have over 40 years experience

Our Services

Full suite of services to meet your needs

Our Office

Call today to discuss your investigation with a detective and schedule an appointment or just email us a question.


Contact Us

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Blueline Investigative Services, Inc

7115 Virginia Rd

Crystal Lake, IL 60014


Monday - Friday: 9am - 5pm

Saturday: By appointment

Sunday: Closed

Please contact us by phone or email to discuss your investigation with our detectives and schedule an appointment. No walk-ins are accepted.