'Green' energy companies in Mass.

24M Location: Cambridge Sector: Battery developer Founded: 2010 What it does: 24M was spun out of MIT and A123 Systems after receiving an ARPA-E award of $2.55 million. It's developing cheaper and more productive batteries that could be used for electric vehicles. 24M quickly secured $10 million in venture capital funds. Pictured (left to right): 24M chief scientist and co-founder Yet-Ming Chiang, founding scientist W. Craig Carter, and co-founder Throop Wilder.
Courtesy of 3M

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24M

Location: Cambridge
Sector: Battery developer
Founded: 2010

What it does: 24M was spun out of MIT and A123 Systems after receiving an ARPA-E award of $2.55 million. It's developing cheaper and more productive batteries that could be used for electric vehicles. 24M quickly secured $10 million in venture capital funds.

Pictured (left to right): 24M chief scientist and co-founder Yet-Ming Chiang, founding scientist W. Craig Carter, and co-founder Throop Wilder.