Phykos
YC S21San Francisco, US · Founded 2020 · 2 employees · 5 known investors
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Phykos cultivates seaweed for carbon sequestration and climate mitigation purposes.
Also known as PBC · Phykos, PBC
Advanced ManufacturingClimate TechCarbon Capture and RemovalClimateUnited States of AmericaAmerica / CanadaFully Remote
Founders & leadership· Y Combinator alumni (S21)
Phykos was founded in 2020 by Nico Julian and Jeff Zerger.
NJ

Nico JulianFounderNico Julian is a mechanical engineer who has worked on marine satellite communications, solar energy ventures, and experimental projects at Google X.
JZ

Jeff ZergerFounderJeff Zerger is a software engineer with 25 years of experience in Silicon Valley, including roles at Apple and Google. He has held early positions at startups in cleantech, food, and aerospace, and has led software teams.
Investors · 5
Discount Investment Corporation Ltd.listed by Discount Investment Corporation Ltd.Tel Aviv
How we know: Discount Investment Corporation Ltd.'s portfolio page · Not right? Tell us
Keiki Capitallisted by Keiki CapitalAbilene · $100K – $250K
How we know: the VCSheet dataset · Not right? Tell us
Related companies · 5
Industrial MicrobesiMicrobes uses synthetic biology to develop cost-effective sustainable materials and replace conventional manufacturing processes. The company focuses on circular economy principles, converting waste streams into value through biotechnology.
Releaf EarthReleaf builds climate-resilient agriculture solutions for smallholder farmers in Africa through supply chain, agronomic expertise, and hardware-software integration. The company aims to improve farming sustainability and economic prosperity across the continent.
PachamaPachama used satellite imagery, lidar, and machine learning to verify and monitor forest carbon projects, connecting companies to nature-based carbon credits for reforestation and forest conservation.
SINAISINAI provides software to help companies measure, reduce, and report their carbon emissions and develop decarbonization strategies. The platform serves carbon-intensive organizations globally with tools for emissions analysis, reporting, and actionable decarbonization planning.
NoyaNoya converts existing industrial equipment such as cooling towers into carbon dioxide capture systems, lowering the initial investment and deployment time required for direct air capture operations.
Companies working in the same space as Phykos.
Legal entities · 1
corporate structurePhykos, PBC
Frequently asked questions
- What does Phykos do?
- Phykos cultivates seaweed for carbon sequestration and climate mitigation purposes.
- Who founded Phykos?
- Phykos was founded by Nico Julian, Jeff Zerger in 2020.
- Who are Phykos's investors?
- Phykos's investors include Discount Investment Corporation Ltd., Gaingels, Keiki Capital, Leap Forward Ventures, Y Combinator.
- Where is Phykos headquartered?
- Phykos is headquartered in San Francisco, US.

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