CustomInk is an American-based online retail company that makes custom apparel such as T-shirts and sweatshirts. CustomInk was founded in 2000 by Marc Katz, Dave Christensen, and Mike Driscoll. The company is headquartered in Fairfax, Virginia, and has additional offices in Reno, Nevada, Dallas, Texas, Charlottesville, Virginia, and Boston, Massachusetts. CustomInk has been recognized for its workplace culture and has been named to Fortune's 100 Best Workplaces for Millennials and 100 Best Workplaces for Women lists.