"Ohmstede is the only company that offers fully integrated turnaround and specialty maintenance services with state-of-the-art shell and tube heat exchanger fabrication and repair under "one roof."​ We're the largest U.S. manufacturer of shell and tube heat exchangers, including replacement tube bundles, channels and shells. Ohmstede earns our customers'​ trust every day, offering a single point of accountability to oversee your total project needs in the field to the shop and back again."​