ACT Lighting is a manufacturer and value-added distributor of entertainment lighting, rigging, and audio technology used in major concert tours and live entertainment venues, film & TV studios, as well as in the theatrical, architectural, and music retail industries across North America. ACT's products can be seen at the highest profile events and venues, including each of the top 10 grossing concert tours (Rolling Stones, Madonna, Beyonce, etc.), Broadway shows, the Super Bowl Halftime Show, and the Empire State Building. Founded in 1993 and headquartered in Hackensack, NJ, the company has more than 500 employees across offices in Southern California, Missouri, Massachusetts, Michigan, Texas, Canada and Mexico.

In 2014, BASE acquired the company in partnership with the CEO.  In 2017, BASE completed the add-on acquisitions of RapcoHorizon and AC Power.