Sean S. Cunningham
Sean Sexton Cunningham (born December 1941) is an American filmmaker, director, producer, and writer.
He is best known for directing and producing several horror films, beginning in the early 1970s.
Raised in Connecticut, Cunningham graduated from Franklin & Marshall College before earning an MFA from Stanford University.
After completing his education, he worked as a manager for various theater companies, including New York City's Lincoln Center and the Oregon Shakespeare Festival.
While working for a documentary company in New York, Cunningham made his feature film directorial debut with "The Art of Marriage" (1970).
While editing his second film, he met Wes Craven, with whom he collaborated as a producer of Craven's exploitation horror film "The Last House on the Left" (1972).
Cunningham went on to co-create and direct the slasher film "Friday the 13th" (1980), which was a major box-office success.
He went on to produce several horror films throughout the 1980s, including "House" (1986) and its sequel,  (1988).
Crystal Lake Entertainment
Crystal Lake Entertainment Inc. is a Los Angeles-based multi-media production company.
The company was named after the storied lake from founder and CEO, Sean S. Cunningham's landmark film, "Friday the 13th".
Their first released project was .
Bakalowits
Bakalowits is a producer of crystal chandeliers based in Vienna.
John De Margheriti
John De Margheriti( born July 1962) is an Italian- born Australian electrical engineer, software developer and entrepreneur.
De Margheriti is widely seen as a founding' father' of Australia's video games industry and Australia's most experienced interactive entertainment business executive.
He is the founder and former CEO of BigWorld Pty Limited and the founder of parent company Micro Forté Pty Limited.
De Margheriti is also the Executive Chairman of the Academy of Interactive Entertainment, the Chairman of Canberra Technology Park, the founder of the Game Developers' Association of Australia, the founder of the Australian Game Developers Conference, and the founder of the three Canberra business parks, the co-founder of DEMS Entertainment, the co-founder of Dreamgate Studios, the co-founder of Game Plus and co-founder of The Film Distillery De Margheriti has been recognised as an Honorary Ambassador for Canberra due to his contribution to Australia's national capital.
Daniel Knudsen
Daniel Knudsen is an American film director, actor and film producer.
He is also a co-founder of Crystal Creek Media.
Cyrus Massoumi
Cyrus Massoumi is the founder of the investment fund humbition.
He is also the founder of Zocdoc and was the company CEO for eight years.
Sky Dayton
Sky Dylan Dayton( born August 8, 1971) is an American entrepreneur and investor.
He is the founder of Internet service provider EarthLink, co-founder of eCompanies, and the founder of Boingo.
Rosemary Kurtz
Rosemary Kurtz( born August 11, 1930) is an American educator and politician.
Born in Richmond, Indiana, Kurtz received her bachelor's degree from the University of Oklahoma and her master's degree from the University of Kansas.
She also studied at the University of Iowa.
Kurtz taught in high school and college.
Kurtz served as treasurer for the city of Crystal Lake, Illinois and on the Crystal Lake Zoning Board of Appeals.
Kurtz served in the Illinois House of Representatives from 2001 to 2005 and was a Republican.
Mike Felumlee
Mike Felumlee, a native of Crystal Lake, Illinois( a suburb of Chicago), is chiefly known as the current drummer for the rock band The Smoking Popes.
He is known to a lesser extent for his stint of several years as drummer in the band Alkaline Trio and for his solo music.
Steve Parish (businessman)
Stephen Parish( born 1965) is the part- owner and Chairman of Crystal Palace Football Club.

Question: Which country the founder of Crystal Lake Entertainment is from?
Answer: American