Photoshop); Mike Engelhardt (original author of LTspice); Niels Provos (creator of Bcrypt); and Sid Meier (creator of video games series Civilization).
==== Business and finance ====
Michigan alumni have founded or cofounded many prominent companies, such as Alphabet Inc. (Larry Page), Johnson & Johnson (Edward Mead Johnson), Abbott Laboratories (Wallace Calvin Abbott), Stryker Corporation (Homer Stryker), Emerson Electric Company (John Wesley Emerson), Loews Corporation (Preston Robert Tisch), Devon Energy (J. Larry Nichols), Merrill Lynch (Charles Edward Merrill), Leidos as SAIC (J. Robert Beyster), Rocket Mortgage (Gary Gilbert), Twilio (Jeff Lawson, Evan Cooke, John Wolthuis), Domino's (Tom Monaghan), H&R Block (Henry W. Bloch), Related Companies (Stephen M. Ross), Admiral Group (Henry Engelhardt), Akamai Technologies (Randall Kaplan), and Five Guys (Jerry Murrell)
The university counts several patriarchs of influential business dynasties, including George Getty of the renowned Getty family. The university …