Each of the MasterGuard Pest Control owners have their own areas of expertise. Dennis, Aaron, Barry and Brian all worked many years previous for multiple pest control companies before starting their own pest control company in Oklahoma over 14 years ago. They have owned and operated A+ Pest Control, Inc. in the Oklahoma City metro area where they had over 6,500 residential and commercial customers. Lance has also worked many years previous for multiple companies as a technician, salesman, and pest control manager and has been in the pest control industry for over 12 years. All of our pest control technicians are certified for residential and commercial properties. For more information about our pest control certification requirements, please contact us at any one our three pest control branches in Wisconsin or Michigan. - See more at: http://www.masterguardpestcontrol.com/about-us/#sthash.nsIKkdvf.dpuf