Special to the Daily Manna Tree is an investment firm that invests in portfolio companies that help improve human health through food and nutrition. The company is based in the Vail Valley, with an office in West Vail near the ski slopes. (Special to the Daily) The CEO’s office is painted a bright green with orange trim. Next to the window, there is a boar’s head mounted on the wall. Below is an abandoned ballet studio where groans and cheers from a staff workout can be heard. The fact that Manna Tree is headquartered in Vail is not the only thing that separates it from other investment firms.