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Keel Labs

5 known investors

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Keel Labs develops seaweed-derived biopolymer fibers for the textile and fashion industries, aiming to reduce reliance on arable land and harmful agricultural inputs. The company creates climate-forward material solutions using ocean-based resources.

Circular EconomyCleantechClimate TechNew Materials

Founders & leadership

TCTessa Callaghan
Tessa CallaghanFounderTessa Callaghan is the founder and leader of Keel Labs, which develops seaweed-derived biopolymer fibers for textiles and fashion. She has founded and led multiple companies and worked closely with early-stage technical founders on strategy, positioning, and scaling.
AGAleks Gosiewski
Aleks GosiewskiCo-founder & CEOHe has over a decade of experience building and scaling venture-backed companies in climate and materials, with expertise in product development, strategy, operations, and fundraising.
A(
Aleks (Gosiewski) MichaelsonFounder
CMChris Mekeel
Chris MekeelCTOHe previously served as Vice President at the company, where he has focused on research and product development.
DGDustin Griner
Dustin GrinerCFO
AG
Aleksandra GosiewskiFounder

Investors · 5

Horizons Ventureslisted by Horizons VenturesHong Kong · $500K – $10M

How we know: a partner's Signal profile · Not right? Tell us

SOSVlisted by SOSVNew York · $30K – $550K

How we know: open dataset · 5k.vc investor directory · sosv.com · Not right? Tell us

Third Naturelisted by Third NaturePhiladelphia · $100K – $250Kvia Jason W. Ingle · inferred

How we know: Third Nature's portfolio page · the VCSheet dataset · Not right? Tell us

Starlight VenturesreportedMiami · $100K – $3M

How we know: the VCSheet dataset · Not right? Tell us

Frequently asked questions

What does Keel Labs do?
Keel Labs develops seaweed-derived biopolymer fibers for the textile and fashion industries, aiming to reduce reliance on arable land and harmful agricultural inputs. The company creates climate-forward material solutions using ocean-based resources.
Who founded Keel Labs?
Keel Labs was founded by Tessa Callaghan, Aleks Gosiewski, Aleks (Gosiewski) Michaelson.
Who are Keel Labs's investors?
Keel Labs's investors include Collaborative Fund, Horizons Ventures, SOSV, Third Nature, Starlight Ventures.