TF Warren Group has grown in subsequent years, becoming a corporate entity (management group) under which several companies operate. Each company has its own special area of expertise and employs the personnel required to carry out the related work. TF Warren Group is currently comprised of the following companies: Blastech, Blastco, Brant, and Tarsco. The TF Warren Group of companies, currently employing approximately 900 employees, thrives in competitive environments where safety, quality, innovation and personal service are considered our most important attributes.