David Energy, a new kind of energy provider, today announced the close of its $1.5 million Pre-Seed round co-led by Box Group and Greycroft. Great Oaks, Oceans, and a group of strategic angel investors including Zach Weinberg, Nat Turner, and Kiran Bhatraju also joined the round. David Energy has developed a proprietary software platform that utilizes machine-learning to act as the Energy Operating System for buildings and modernize how customers purchase energy. Used by commercial and industrial owners and operators, the company's platform was developed to streamline wholesale energy purchasing, report sustainability metrics and optimize Distributed Energy Resources such as smart thermostats, battery storage, and solar according to a building's unique needs.