The KKR co-founder said the firm is finding opportunities pretty much around the world today.
"If you look at Europe, where there are banking and currency issues, we're providing capital to the banking system there," said Roberts, who was in Chicago for the Schwab Impact 2012 investor conference. "We're providing capital to the businesses that need it."
KKR is also teaming up with entrepreneurs in China and is investing in the US energy sector.
"Many times when there's uncertainty that's when the best investments come up," he said. "Today, with the uncertainty around the world, it's a pretty good time." (Read more:Fixed Income Outlook )