Mascoma Corporation is a U.S. biofuel company that produces cellulosic ethanol made from wood and switchgrass. Headquartered in Lebanon, New Hampshire, the company was founded in 2005 by Robert Johnsen (CEO), Lee Lynd and Charles Wyman, two professors from Dartmouth College. The company's founders have continued to work with Dartmouth’s Thayer School of Engineering on its research into ethanol engineering. The company is named after Mascoma Lake, which is near Lebanon.