NYX Professional Makeup El Segundo, CA NYX Professional Makeup is a cosmetics company that is a subsidiary of L'Oréal. The company was founded in Los Angeles by Toni Ko in 1999. It was named after Nyx, the Greek goddess of the night. SHARE THIS PAGE: Get Alerts about NYX Professional Makeup By signing up, I agree to the Terms & to receive emails from POPSUGAR. SWEET! You’re all signed up.