One of Turtle Pond Publications significant investments is Fillpoint LLC[15] a videogame e-commerce direct-to-consumer distribution and fulfillment provider.

[18] Hatkoff is Chairman of Turtle Pond Publications which owns or invests in a number of new media, entertainment and publishing ventures.

He is on three public company boards that include Colony Capital (NYSE: CLNY) and SL Green (NYSE: SLG), two of the country's largest REITs,  as well as Subversive Capital Acquisition Corp, a SPAC that is expected to convert into a REIT during 2020 and trades on the Canadian NEO stock exchange.

[21][22][23] He was also a director of Taubman Centers Inc (TCO) from 2004- 2019 and was a co-founder of Capital Trust along with Samuel Zell, the legendary Chicago based billionaire investor, where he was vice chairman.

[22][24] Hatkoff cofounded the Disruptor Foundation in 2009 along with the late Professor Clayton M. Christensen of the Harvard Business School.