Who is coleman engineering company? Coleman Engineering Company is a multi-disciplinary engineering firm employing approximately 100 people between four office locations in Iron Mountain, Ironwood, Negaunee Michigan and Green Bay Wisconsin.Why is my coleman customer service taking so long to respond? We apologize if you are experiencing longer than usual call wait times or delayed responses to your questions through chat, email and social media. Some of our Coleman customer contact team members are working reduced office hours as a safety precaution due to the coronavirus affecting the regions where we operate.How do i unsubscribe from coleman company emails? By submitting your email address above you agree that Coleman Company may send you emails relating to the Coleman brand about promotions, events, special offers and surveys. You may unsubscribe at any time. 6655 Peachtree Dunwoody Road, or for Canadian residents, 20B Hereford Street, Brampton, ON L6Y 0M1, Call 1-877-804-5383.Why are some of your coleman staff working reduced office hours? Some of our Coleman customer contact team members are working reduced office hours as a safety precaution due to the coronavirus affecting the regions where we operate.