Todd Marks (born in 1976) is an American businessman and computer programmer.
 He is the founder and CEO of Mindgrub Technologies, an agency with a focus on mobile and web apps, games and digital marketing.
 Mindgrub has won several awards and is considered a tech market leader, working with clients like Wendy’s, AOL and Yamaha.
 Marks was a "Baltimore Business Journal" honoree of 40 Under 40 and a two-time nominee for the EY Entrepreneur of the Year Award.
Brian Sloan is an American entrepreneur known for creating a number of sex toys and adult-themed beauty contests.
 He is one of the few entrepreneurs in the adult industry to successfully use crowd funding, raising over $375,000 across three Indiegogo campaigns.
 He hosted a vaginal beauty contest, a scrotum beauty contest, and an anus beauty contest and appears as a pitchman in infomercial style videos for most of his products and contests.
Kevin Christopher Ou (born March 4, 1979) is an American celebrity director / photographer / entrepreneur / investor originally from Singapore.
 He is the sole founder of KEVINOU, INC the co-founder of Modern Home + Living (MH+L) and founder of The Lumenere Group and Catlyst/TV.
 His photographs have been published in "Rolling Stone", "Nylon", "Elle", "DUB", "People", "Surface", "Vogue", "Entertainment Weekly" with clients like Levi’s, Cartier, Louis Vuitton, Hermes, H&M, Uniqlo, Lego, BMW and General Motors.
Syed Moiz Balkhi (Hindi-Urdu: سید معز بلخی , सैयद मोइज़ बलख़ी ) is a Pakistani American entrepreneur known for his social media work with WPBeginner, a WordPress resource.
 Balkhi also serves as a writer for "The Huffington Post" and "Entrepreneur (magazine)", where he has authored several articles.
Malcolm Stevenson Forbes (19 August 1919 – 24 February 1990) was an American entrepreneur most prominently known as the publisher of "Forbes" magazine, founded by his father B. C. Forbes.
 He was known as an avid promoter of capitalism and free market trade, and for an extravagant lifestyle, spending on parties, travel, and his collection of homes, yachts, aircraft, art, motorcycles, and Fabergé eggs.
Frederick Douglas Patterson (1871–1932) was an American entrepreneur known for the Greenfield-Patterson automobile of 1915, built in Ohio.
 He later converted his business to the Greenfield Bus Body Company.
Donald Joel Aronow (March 3, 1927 – February 3, 1987) was an American designer, builder and racer of the famous Magnum Marine, Cary, Cigarette, Donzi, and Formula speedboats.
 He built speedboats for the Shah of Iran, Charles Keating, Robert Vesco, Malcolm Forbes, and George H. W. Bush.
 Retired President Lyndon Johnson owned several 16 ft. Donzi speedboats on his Texas ranch with which he would race his Secret Service agents.
Dave Dahl (born January 12, 1963) is an American entrepreneur known for formulating and co-founding Dave's Killer Bread.
 Prior to starting his business, he had served a total of over 15 years in prison for multiple offenses including drug distribution, burglary, armed robbery and assault.
 During his final incarceration, he managed to turn his life around with the help of a drug treatment program and vocational training in computer-aided drafting and design.
Ernest J. Dianastasis (born, October 8, 1956 is an American entrepreneur known as the CEO of "The Precisionists, Inc." (TPI), a national company focused on creating jobs for people with disabilities.
Henry Phipps, Jr. (September 27, 1839 – September 22, 1930) was an American entrepreneur known for his business relationship with Andrew Carnegie and involvement with the Carnegie Steel Company.
 He was also a successful real estate investor who after selling his stock in Carnegie Steel, devoted a great deal of his time and money to philanthropic works.

Question: Donald Joel Aronow designed speedboats for clients like which American entrepreneur known as the publisher of "Forbes" magazine? 
Answer: Malcolm Stevenson Forbes