C&A Investigation & Security Solutions LLC, formerly known as C&A Investigations d.b.a. Christopher Brunner, was established by Investigator Christopher R. Brunner in November 2023, following the acquisition of his license from the State of Kansas Attorney General’s office. Since its inception, C&A Investigation & Security Solutions LLC has experienced rapid growth. In January 2025, Investigator Brunner transitioned the business into an LLC, expanding our range of services.

C&A Investigation & Security Solutions LLC offers civil investigations, criminal investigations, criminal defense investigations for attorneys, surveillance, pre-employment background checks, personal background checks, civil custody investigations, missing persons cases, cold cases, witness interviews, digital forensics utilizing state-of-the-art software, evidence gathering, and process serving. We provide a full spectrum of Private Security Solutions, ranging from armed to unarmed security solutions for businesses, personal protection, and events.