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We are

THE FUTURE OF HIGH‑PERFORMANCE MATERIALS.

We believe that answers to our most vexing problems can be found in nature. Every day we’re inspired by the amazing materials we work with and are driven by the desire to turn these materials into incredible products that solve the problems of a resource-constrained world.

We are a venture-backed, idea-driven company, led by world-class talent, as well as experienced executives from the technology and apparel industries.

We believe that answers to our most vexing problems can be found in nature. Every day we’re inspired by the amazing materials we work with and are driven by the desire to turn these materials into incredible products that solve the problems of a resource-constrained world.

We are a venture-backed, idea-driven company, led by world-class talent, as well as experienced executives from the technology and apparel industries.

2009

Bolt Threads founded

2012

Spider silk fibers introduced

2015

Expanded to 32,000 sq. ft. facility

2017

Launched Microsilk fiber

Acquired Best Made Co.

First commercial product – Microsilk tie

Stella McCartney x MoMA Collaboration

2018

Launched Mylo mycelium leather

Launched Driver Bag

Launched b-silk protein

2019

Launched Eighteen B skincare

Stella McCartney x adidas Microsilk collaboration

IT STARTED WITH

A SHARED VISION.

In 2009, a bioengineer, a biophysicist, and a biochemist came together with an optimistic idea that through biotechnological innovation, they could change the world. They founded Bolt Threads with the goal to develop better materials for a better world.

Meet the world-class team that’s helping bring that vision to life.

In 2009, a bioengineer, a biophysicist, and a biochemist came together with an optimistic idea that through biotechnological innovation, they could change the world. They founded Bolt Threads with the goal to develop better materials for a better world.

Meet the world-class team that’s helping bring that vision to life.

MEET THE LEADERSHIP

Dan Widmaier, PhD

CEO and Co-Founder

Dan is fascinated by finding the right conditions to grow things. He’s carefully tended our growth since 2009, using his passion and expertise to lead the company through technology development, expansion, and financing. He earned his Ph.D. in Chemistry and Chemical Biology from UC San Francisco, where his graduate research involved designing genetic circuits to control microbial organelles. He’s also passionate about the growth of something over which he has less control: the progress of the Seattle Seahawks.

David Breslauer, PhD

Chief Scientific Officer and
Co-Founder

David guides the design, production, and testing of new silk polymers and fibers with desired performance properties. A born communicator, David uses his talent for elocution to coordinate among Bolt Threads’ research teams. His graduate research on silk during his Bioengineering PhD at UC Berkeley and UCSF comes in handy as he directs long-term technical strategy.

Ethan Mirsky, PhD

VP Strategic Projects & Co-Founder

Ethan focuses on the strategic projects that have a longer-term impact on the business. He was previously a founder at Silicon Spice, a successful semiconductor startup, and earned his PhD in Biophysics from UC San Francisco. Ethan’s ardor for engineering, details, and safety also serve him well when he’s in the sky. He’s a licensed pilot who used to fly small aircraft and particularly loves flying over beautiful geographical features like mountains, rocky coastlines, and wilderness.

Sue Levin

Chief Commercial Officer

Neither a chemist nor an engineer, Sue brings a liberal arts perspective to the company. As head of all commercial activities, including business development and marketing, she frames our work in a broader context and translates scientific research to consumer needs. Sue started her career in journalism before moving to Nike, where she was Global Director of Women’s Sports Marketing, and later US Women’s Brand Director. Sue left Nike to co-found lucy, a pioneering women’s activewear brand. As CEO, she led lucy through a successful transition from dot-com to multi-channel retailer. Before you challenge her to a friendly game of frisbee, be warned that she was an ultimate frisbee national champion.

Deanna Chechile

General Counsel

Deanna is the guardian of Bolt's proprietary technology and helps the company navigate the complex field of intellectual property and commercialization. Before joining Bolt, Deanna was the SVP, General Counsel, and Secretary at Shiseido and Bare Escentuals. Prior to Shiseido and Bare, Deanna spent eight years in private practice. She received her BA from Smith College and her JD from Boalt Hall School, UC Berkeley where she graduated Order of the Coif. In her free time, Deanna enjoys taking her Rhodesian Ridgebacks on hikes, organic gardening, and travel. Her travel highlights including Eritrea, Zambia, Morocco, and Zimbabwe. She also owns 25 acres of land in the New Mexico high desert, right across from the Georgia O'Keeffe homestead.

Jamie Bainbridge

VP of Product Development

Jamie engages the best minds in the textile industry to tackle every aspect of yarn and textile development. Previously, Jamie was Director of Product, Textiles and Sustainability for Nau Clothing. Her past experiences include research and development and innovation work at Nike and Patagonia. She serves as the chair of the advisory council for the Outdoor Industry Association Sustainability Working Group and as a member of the Chemicals Management working group of the Sustainable Apparel Coalition. Jamie prefers to experience life unhindered by shoes and rarely lets a day go by without knitting.

Alex Patist, PhD

VP of Process Development

Alex is our bridge between two worlds: the scientific and the commercial. He takes the magic of our science and makes it work on a big industrial scale – a feat he’s accomplished multiple times in the food, nutraceutical, biochemical, and biofuel industries. He holds a Ph.D. in Chemical Engineering from the University of Florida and his previous experience includes Senior Director of Bioprocess Technology at Genomatica and Director of Technology at Cargill. Originally from the Netherlands, Alex is your man if you’re interested in the physics behind the pipe organ, or if you simply want to learn to play.

Sholeh Esmaili-Montoya, SPHR, SHRM-SCP

VP of People & Places

Sholeh is the person behind our people - she builds the programs that support the performance of our people and culture and provides leadership to our Workplace Operations (Facilities and EH&S) and Information Technology teams. She has over 15 years of HR experience, including building and leading teams that were pivotal in growing Phacil, an IT services management company, from 80 to 600+ employees. She's also an instructor in rotation at UC Berkeley Extension for Recruitment, Selection and On-boarding within their Human Resources Management Certificate program and holds a Master's in Public Administration from CSU East Bay. People aren't the only thing she builds up: outside of work she enjoys Lego construction with her daughters and traveling to new places to experience other cultures.

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Contact Us


For press inquiries: press@boltthreads.com

For career inquiries: careers@boltthreads.com

Disclaimer: We know learning about the potential of biomaterials can inspire a wealth of ideas and we love your creativity. Before you send us your awesome ideas, please know that we don't want to accidentally come up with an idea similar to yours, so any concept you email us will become the property of Bolt Threads Inc.