TA Associates has announced the completion of its majority investment in Tectum Holdings, a manufacturer of pickup truck accessories. Former majority owner Kinderhook Industries retained a minority interest in the company; reportedly, the deal gives Kinderhook a return in excess of $300 million, about 23x, on its investment. Kinderhook had invested in Tectum in late 2007. Tectum manufactures soft and hard bed covers, also known as tonneau covers, for light duty pickup trucks. Its brands include Extang, TruXedo, UnderCover and more.