Capital Z Partners made an investment in long-short equity manager AJB Capital Management. Abraham Bronchtein founded AJB in 2004 and is its lead portfolio manager. AJB Capital is the fourth hedge fund manager to which Capital Z has provided seed capital in the past year. Terms of the deal, the size of Capital Z's investment and AJB's assets under management are not being disclosed, said Monica Everett, a spokeswoman for Capital Z. Capital Z has $2.25 billion under management, according to a company statement.