Pyran

Pyran develops clean technology for producing 5-carbon molecules, specifically 1,5 PDO (pentanediol), from renewable agricultural products as bio-based alternatives to petroleum-derived chemicals. The company's proprietary process yields 100% biobased 1,5 PDO certified by the USDA BioPreferred Program, delivering superior performance on heat, water, oil, and weather resistance compared to 6-carbon diol alternatives. Pyran's production achieves prices equivalent to or below 1,6 HDO, addressing the substantial premium companies currently pay for 5-carbon molecules due to their difficulty of extraction from petroleum. The company has secured letters of intent and additional production capacity to meet market demand, with breakthroughs in product quality and production efficiency. Founded in 2017 and headquartered in Madison, Wisconsin, the company has raised approximately $12.5M in Series B funding. Pyran differentiates itself as the world's only clean technology that can intentionally produce 5-carbon products from renewable sources with no harmful byproducts.