Sanjay Wagle was a venture capitalist and Barack Obama fundraiser in 2008, rallying support through a group he headed known as Clean Tech for Obama.

Shortly after Obama’s election, he left his California firm to join the Energy Department, just as the administration embarked on a massive program to stimulate the economy with federal investments in clean-technology firms.

Following an enduring Washington tradition, Wagle shifted from the private sector, where his firm hoped to profit from federal investments, to an insider’s seat in the administration’s $80 billion clean-energy investment program.

He was one of several players in venture capital, which was providing financial backing to start-up clean-tech companies, who moved into the Energy Department at a time when the agency was seeking outside expertise in the field. At the same time, their industry had a huge stake in decisions about which companies would receive government loans, grants and support.

During the next three years, the department provided $2.4 billion in public funding to clean-energy companies in which Wagle’s former firm, Vantage Point Venture Partners, had invested, a Washington Post analysis found. Overall, the Post found that $3.9 billion in federal grants and financing flowed to 21 companies backed by firms with connections to five Obama administration staffers and advisers. more