Abraaj Capital, the Middle East's largest private equity firm, plans to invest up to $400m in two deals and hopes to close the transactions before the end of the year, a top company executive said today.

"We're in advanced due diligence stage on two deals and hope to close before year end," Abraaj Capital's managing director Mustafa Abdel Wadood told Dow Jones in an interview on the sidelines of a private equity event in the United Arab Emirates capital.