Who We Are

Inter-Facts Inc. is a full-service Professional Investigations and Research firm based in the Chicago area.  The company employs a network of licensed, experienced investigators to serve clients in both the public and private sectors throughout North America.  Our services range from simple background and pre-employment checks through intensive surveillance and criminal defense investigations.


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Inter-Facts Investigations dates back to 1960. The nucleus of our company was born out of Factual Services Bureau, one of the nations 1st Investigation companies serving the Insurance industry. We are experts at gathering information using old school Private Detective know how as well as masters of new technology.

Our principle, William (Bill) Lamb, a licensed Private Detective, began his professional investigation career in the 1980’s in the Military Police, moving into Military Police Investigations within one year.  Following service to his country, Mr. Lamb moved into a management position, always having the thought of returning to some type of investigation work.  In 1995, he accepted a position working for Insurance Investigative Consultants, one of the nation's original investigation firms, providing support to the insurance industry.  William Lamb continues to review every file before it reaches a client's hands.  He also personally handles criminal defense investigations for some of Illinois top law firms.

Inter-Facts Affiliations

NALILogoNational Association of Legal Investigators : Formed in 1967 for legal investigators actively engaged in negligence investigations for the plaintiff and/or criminal defense. 

  

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The National Council of Investigation and Security Services: The National Voice of the Private Investigation & Security Profession  

 

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The National Society of Professional Insurance Investigators : Providing recognition, encouragement, and support to individuals who demonstrate the highest degree of professionalism in conducting insurance investigation.