Kingsborough founded Blackhawk Network in 2001. Since that time, the company has been a leader in the development of third-party prepaid card products. Prior to establishing Blackhawk, Kingsborough founded and served as chief executive officer of toy manufacturer Worlds of Wonder, where he created a multi-million-dollar new industry category and propelled this start-up business to one of the nation’s fastest growing companies.

While at Atari Corporation, Kingsborough led the introduction of Nintendo to America, growing its sales from zero to more than $2 billion in four years.