About Us Mechanical Technologies Inc. is a full service mechanical contractor located in Green Bay, Wisconsin. We also have offices in Madison, Marshfield, Eau Claire in Wisconsin. MTi offers services for: Piping, Plumbing, Service Repair, Sheet Metal and Building & Plant Mechanical Automation controls. Our territory covers all of Wisconsin, but we have done specialty projects in Maine, Arizona, Ohio, Illinois, Minnesota and Michigan. We pride ourselves in providing the highest quality service through the skilled workmanship of our employees. We understand that it is the relationship with our customers that continues to help us grow. We continue to honor this relationship as we focus on our customers’ needs. We specialize in Energy Reduction Design and hold many certifications. MTi is also an Authorized Talon Control Dealer and Star Certified Technician provider. At MTi we pride ourselves by delivering innovative ideas and productive solutions all backed by incredible customer service. Our Mission Mechanical Technologies is a full service mechanical contractor located in Green Bay Wisconsin that is driven to develop strong relationships, innovative ideas and cost savings solutions. We have always had the slogan “Changing your Environment” and that is what we are determined to do. Industries are constantly changing and MTi is determined to provide reliable energy solutions. Going above and beyond our customers’ expectations is our business!