microalgae
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Loren Burnett Is Teaching Concrete to Borrow a Trick From the Sea
After five exits, the Colorado founder chose a harder material problem: turning microalgae, mineral chemistry and patient commercialization into concrete with a smaller carbon bill.
The Cement Startup That Stopped Trying to Replace Concrete - and Learned to Sneak Algae Into the Mix
Prometheus Materials spent years teaching microbes to make stone. Its more consequential trick was learning that the concrete industry did not want a revolution - it wanted a familiar bag of powder that could survive the batch plant.
GEM
GEM is a Los Angeles-based wellness company that reimagines the daily multivitamin as a whole-food bite rather than a pill or gummy. Founded in 2018 by Sara Cullen, GEM packs 20+ vitamins, minerals, superfoods, prebiotics, probiotics and microalgae into a single real-food chew, sold mainly through a subscription model plus retail and Amazon. Its pitch is 'food is medicine' - transparent, plant-based, and traceable nutrition for people who distrust synthetic supplements.