Technology developers in recycling, bio-based materials and carbon utilization
Small by count, high in intent, and the group most likely to need an independent read they can put in front of an investor or a first customer. They surface through funding rounds, plant announcements and public project records rather than through any industry list, which is why they are usually reached late by everyone.
Who signs: founder or chief executive, chief technology officer, head of business development, and the investor sitting on the board.