About Us
Dornbos Sign & Safety Inc. – Over 60 Years of Making Roads Safer and Brands Brighter
We started in Paul Callender's garage in Charlotte, Michigan, crafting quality signs from the ground up. When Paul retired, Robert Dornbos (a 3M reflective sheeting rep who called on him regularly) partnered with John Callender to form Callender & Dornbos Inc. We've been proudly based at the same spot—619 W. Harris St.—ever since. Building Lasting Relationships
Over decades, we've earned trust with city and county road agencies, contractors, universities, schools, and private businesses across Michigan—and now nationwide. Many of our original partners are still with us today. That kind of loyalty comes from one unchanging mission: high-quality signs at competitive prices, delivered with exceptional service. What We Offer Today MUTCD-compliant traffic signs and safety products (using premium 3M reflective sheeting on durable .080 aluminum)
Traffic control gear: cones, barricades, reflectors, hardware, and more
Custom solutions: vehicle/truck graphics, decals, banners, and one-off or bulk signs
Browse our full catalog at DornbosSign.com, shop online, or reach out if you don't see exactly what you need—we make it happen. Family-Owned and Proud
Sons Jake and Jared Dornbos are helping to steer the ship these days. We're still a close-knit, family-oriented team that values our great employees and loyal customers above all. Whether you're ordering one sign or one thousand, we treat your project like our own. If you're already with us—thank you for your continued trust. If you're new—give us a try. We'll deliver premium products, fair pricing, and personal care every time. Questions? Let's talk. Call us at 800-922-0029—we're here to help.
Dornbos Sign & Safety Inc. – Over 60 Years of Making Roads Safer and Brands Brighter
We started in Paul Callender's garage in Charlotte, Michigan, crafting quality signs from the ground up. When Paul retired, Robert Dornbos (a 3M reflective sheeting rep who called on him regularly) partnered with John Callender to form Callender & Dornbos Inc. We've been proudly based at the same spot—619 W. Harris St.—ever since. Building Lasting Relationships
Over decades, we've earned trust with city and county road agencies, contractors, universities, schools, and private businesses across Michigan—and now nationwide. Many of our original partners are still with us today. That kind of loyalty comes from one unchanging mission: high-quality signs at competitive prices, delivered with exceptional service. What We Offer Today MUTCD-compliant traffic signs and safety products (using premium 3M reflective sheeting on durable .080 aluminum)
Traffic control gear: cones, barricades, reflectors, hardware, and more
Custom solutions: vehicle/truck graphics, decals, banners, and one-off or bulk signs
Browse our full catalog at DornbosSign.com, shop online, or reach out if you don't see exactly what you need—we make it happen. Family-Owned and Proud
Sons Jake and Jared Dornbos are helping to steer the ship these days. We're still a close-knit, family-oriented team that values our great employees and loyal customers above all. Whether you're ordering one sign or one thousand, we treat your project like our own. If you're already with us—thank you for your continued trust. If you're new—give us a try. We'll deliver premium products, fair pricing, and personal care every time. Questions? Let's talk. Call us at 800-922-0029—we're here to help.
Sincerely,
Jeff Dornbos
President
Dornbos Sign & Safety
