Andrew Gray brings a rare combination of hands-on startup experience and financial training to his work at Tilia Impact Ventures, having been a strategy consultant and a COO/CFO in tech-for-good companies before becoming a Chartered Accountant with a Cambridge MBA, and he holds founders to an unusually high bar by requiring real, science-backed proof that their work causes the impact they claim rather than accepting a good mission statement. He also looks beyond carbon to areas like biodiversity and wildlife intelligence, shares specific predictions about where energy infrastructure is headed, sticks to a clear rule that founders shouldn't give up more than 20% of their company in a round, and extends his impact work internationally by advising Brolly/Tendelo, which uses voice-AI bookkeeping to help informal traders in Africa access credit and insurance.