Where is extang corporation located? Extang Corporation is located in Ann Arbor, MI, United States and is part of the Automobile Parts Manufacturing Industry. Extang Corporation has 100 total employees across all of its locations and generates $32.93 million in sales (USD). There are 31 companies in the Extang Corporation corporate family.Why choose extang? Engineering is at the heart of why Extang is the number one selling truck bed cover brand in North America. Extang holds more patents than any other truck accessories company. We’ve perfected nearly every aspect of the truck bed cover and we refuse to leave well enough alone!Why choose extang bed covers? A product that is so well designed, and built to such demanding exact standards, that it performs beyond the truck owner's highest expectations. Engineering is at the heart of why Extang is the number one selling truck bed cover brand in North America. Extang holds more patents than any other truck accessories company.