• Our Location

    Come see us at 1706 North 16th Street in Quincy. The office is located on 16th Street between Locust and Seminary Road, just up the street from the QU soccer field.

    Our Location
  • Firm Profile

    Dennis G Koch CPA was established in May, 2007 with over 35 years of experience in practice. My firm specializes in audits of electric cooperatives and independent telephone companies, not-for-profit organizations, small businesses and governmental entities. Dennis G Koch is licensed in the states of Illinois and Missouri as well as being registered to practice… Read More

    Firm Profile
  • Cars of Special Interest

    It’s not all about work. Pictured here is my father’s 1954 Kaiser Darrin. Over the past 9 years, I’ve had this car restored to its original condition. Features of the car include its Fiberglas body, sliding pocket doors and three-way convertible top. The gallery below contains a number of photos of the car from how it… Read More

    Cars of Special Interest
  • Time Out Teddy

    Mascot of the The National Exchange Club I am a member of the Exchange Club of Quincy Illinois. In addition to our Programs of Service in Youth Activities, Community Service and Americanism, our National Project is the Prevention of Child Abuse. You can learn more about Exchange by clicking on the picture of our mascot,… Read More

    Time Out Teddy