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Bolt Threads Stock

High-Performance Fashion Fibers



Notable Investors

Greylock Partners


Emeryville CA, US

Total Funding


About Bolt Threads Stock

Bolt Threads develops fashion fibers and skincare products from sustainable sources including mycelium (mushrooms), bioengineered silk fibres, and silk proteins. Bolt Threads claims that its materials are safer and less destructive to the environment than traditional leather and petroleum-based fibres. Bolt Threads also partners with fashion companies to incorporate its sustainable materials into product lines. 

Bolt Threads was founded in 2009 and is headquartered in San Francisco, California with additional offices in Portland, Oregon and Arnhem, The Netherlands.


Funding History

August 2011$5.2M
April 2014$32.6M
December 2015$49.1M
September 2017$132M
September 2021$254M


Co-Founder & Chief Executive Officer

Dan Widmaier

Co-Founder & Chief Scientific Officer

David Breslauer


Other Companies

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