Roger is proud of his nearly 35 years in the transmission aftermarket, beginning with a shop in the Saint Louis, Missouri area. The operation now includes three facilities in the southeast Missouri town of Poplar Bluff. The main manufacturing facility houses facilities for fabricating metal and plastic parts used in the company's products. A recently expanded solenoid-assembly facility is just north of Poplar Bluff. The headquarters building houses offices for administrative and sales personnel, shipping operations, warehouse space, and assembly and packaging lines for products other than solenoids.

Also at Teckpak's headquarters is a five-bay transmission shop with a sign proclaiming: "America's Transmission Physician". The shop was the original Poplar Bluff business location opened by the Swenson's in 1978. Roger Swenson's wife, Eunice, says that operating the shop keeps Teckpak constantly aware of the difficulties and problems that its customers face every day. Teckpak has always been, and continues to be, focused on providing solutions for our customers in the transmission business.

In addition to Eunice Swenson, two of the Swensons' four children are integral to Teckpak's operations. Roger Swenson Jr. is finishing his thesis for a master's degree in engineering. Roger Jr. has worked in a number of positions with the company, currently overseeing the company's new product development and many of the manufacturing processes. Ronda Swenson is well known in the industry, as she tirelessly travels nearly 40 weekends a year to show Teckpak's product lines at trade shows, seminars, open houses and other industry events throughout North America.