Sound Decision Productions LLC
Mark Hartzel

If you have a particular need, question, or general comment - we want to hear from you! You can call, email, or fill out the form If you provide us with your contact information, we will be able to reach you.


Telephone: 855-737-7469   (855- SDP-SHOW)
FAX: 262-378-3291

Billing and
Warehouse address:
S81 W19077 Apollo Dr
Muskego, WI 53150

What it's like to work with us.

  • "Mark and his Team are true professionals. Always on time, flexible, top of the line equipment and amazing to work with. Working in a park and outdoor venue has its challenges but with SDP you would never know.  Jazz in the Park is very thankful to have their expertise during the summer season!"
    Kim Morris
    East Town Association
  • "As producer of the free LIVE @ the Lakefront summer concert series, the name Sound Decision Productions sums up perfectly our experience working with Mark and his talented team…a VERY sound decision. From our guests and sponsors, to the artists and intermission performers, SDP delights with their professional and exceptional sound and lighting!"
    Dan Nelson Jr.
    Live at the Lakefront
  • "Sound Decision Productions has been our sound company for the past 13 years. Mark and his crew always do an exceptional job- I would highly recommend his company to anyone!"
    Elaine Kroening
    Positively Pewaukee

Follow us on Instagram @sdp.event