Aviall

Rotobrush International is a provider of integrated indoor air quality and energy efficiency enhancement services and related products. It serves residential and commercial clients in the Dallas-Fort Worth area in Texas. The company offers a range of duct cleaning systems, as well as is a member of the National Air Duct Cleaners Association (NADCA) since 1993. Its staff members are certified by the National Air Duct Cleaners Association. As a privately held company, Rotobrush International sells manufactured electrostatic air filters, air ducts, video inspection systems, and dryer vent cleaning equipment and supplies. It is listed as one of the 500 fastest growing private companies in the United States by the Inc magazine. The company also distributes negative air duct cleaning equipment from Atlantic Engineering. Additionally, it provides the Preferred Military program, which includes discounts and perks for military personnel and veterans.

Founded in 1993, Variosystems is one of the largest privately owned electronics, engineering and manufacturing service companies throughout the world. It offers engineering and systems integration solutions. The company has a staff of over 500 employees and offers supply chain solutions through its various facilities around the world. Variosystems supports hardware and software design, prototyping and logistics planning. It serves the telecommunications, medical and aerospace industries. The company offers a range of potting materials for manual and automated dispensing. Additionally, it specializes in the application of Humiseal and Dymax coatings through computer-controlled programs. Variosystems is located in Southlake, Texas.

Recognized as the world's most sustainable company.