Home › Top 5 Local Business in Dennison, Ohio Find best Dennison, Ohio, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Lanning House US, Dennison, OH 44621228 Grant St Apartment complex The Flower Garden - Dennison (OH 44621) US, Dennison, OH 44621200 Grant St Florists Ron's Heating &Cooling US, Dennison, OH 44621202 Logan St Heating and Cooling Services Complete Dental Care - Dennison (OH 44621) US, Dennison, OH 44621401 Grant St Dental Services Dennison Yard US, Dennison, OH 44621313 Center St Italian restaurant