Daniel Marc Borislow (September 21, 1961 – July 21, 2014) was an American entrepreneur, sports team owner, inventor, and thoroughbred horse breeder. Borislow was born and grew up in Philadelphia, Pennsylvania and attended Widener University. In 1989, he founded Tel-Save, Inc. to resell access to AT&T long-distance lines. Borislow took the company public in 1995, and two years later brokered a $100 million deal with AOL at the "Cafe Europa." In early 1998, Tel-Save had sales of $300 million and was valued by Wall Street investors at $2 billion. However, due to the financial strain of paying off the AOL deal, Tel-Save lost $221 million in 1999, and Borislow sold his stock for approximately $300 million and retired.