Beech Tree Private Equity, a UK-based high-growth companies investor, completed the investment in Sustainable Energy First, a sustainable energy and utilities consultancy company. Financial terms were not disclosed. “We are delighted to partner with the Sustainable Energy First team whose core mission is to reduce the carbon footprint for its customers. We are excited to support the team in continuing to deliver market leading organic growth and supplement it with strategic acquisitions and further investment in data and technology to accelerate the momentum of the business,” Andy Marsh, Beech Tree Private Equity Managing Partner.