In the high-stakes world of entrepreneurship, for Lori Greiner, productivity isn't just a buzzword—it's a lifeline.

(L-R) Daymond John, Barbara Corcoran, Mark Cuban, Lori Greiner and Kevin O'Leary attend the Tribeca Talks Panel: 10 Years Of "Shark Tank" during the 2018 Tribeca TV Festival at Spring Studios on ...

Dr. Aadeel Akhtar pitched his high-tech Ability Hand prosthetic on a Season 15 episode of "Shark Tank." What has happened to ...