Known for being an intense workplace, the private-equity firm also gives associates opportunities that would be difficult to find elsewhere. Here's a look inside the investing powerhouse. As an associate at Apollo Global Management, Reed Rayman once considered quitting. He persevered through the brutal all-nighters, the perplexing spreadsheets, and the temperamental bosses who walked the halls of the midtown Manhattan investment firm. He is the chairman of Yahoo, and a partner at Apollo, with a seat on the board of eight different companies.