Demea Sustainable Investment | 21,571 followers on LinkedIn. Demea Sustainable Investment (ex Demeter IM) is part of Demea Invest, a leading platform in venture capital, private equity, infrastructure and private debt for the sustainable growth of agriculture, food, energy and ecological transition. Demea Invest manages €3bn with 70 people in Paris, Lyon, Bordeaux, Madrid, Düsseldorf and Montreal.