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about.

A global first.

A venture studio enabling and accelerating circular technology in material and waste innovation. We are building a portfolio of climate tech solutions that can be licensed or sold alongside equity stakes in businesses delivering game changing impact.

Find out more about who we are and who we work with below

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our team.

Dr. David Greenfield

Founder and Exec Chair

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Nick Wall

Founder and CEO

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Sophie Thomas

Founder and CTO

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Patrick Montague

Venture Advisor

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Bengt Jenvey Cousins

AI Entrepreneur in Residence

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Isabelle Linden

COO

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who we are.

We are a unique balance of experienced entrepreneurs, commercial advisors, leading waste professionals and circular economy experts bringing unparalleled knowledge and reach to design, support and scale material and waste innovation that will positively change our world. 

etsaW Ventures was founded by Nick Wall, Sophie Thomas, Dr David Greenfield and Patrick Montague, and is supported by a team of experienced sustainability and circular professionals.

our team.

Dr. David Greenfield

Founder and Exec Chair

Nick Wall

Founder and CEO

Sophie Thomas

Founder and CTO

Patrick Montague

Venture Advisor

Bengt Jenvey Cousins

AI Entrepreneur in Residence

Isabelle Linden

COO

our advisors.

We are supercharged by an advisory group combining world class waste, climate tech and material experts alongside scientists, commercial, intellectual property and early-stage venture advisors.

Dr Sally Beken

Polymer expert, sustainability focussed, collaboration builder and strategic advisor.

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Christopher Box

Global Client Partner at PWC.

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Prof. Fiona Charnley

Professor of Circular Innovation at University of Exeter.

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Gordon Harris FRSA

Of Counsel at Gowling WLG (UK) LLP, International IP Strategy Advisor.

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Julie Hill

Board Member at the Office for Environmental Protection (OEP).

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Tom Marchant

Owner and Co-Founder of Black Tomato.

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Claire Potter

Circular Economy designer, consultant, researcher and educator.

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Claire Sparrow

CIMA-qualified Finance Director and HR lead specialising in SMEs.

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partners.

Working with the best.

We have an unparalleled circular network through collaborations with the Circular Economy Club (CEC) and the Circular Economy Institute (CEI) that both span the world.

The CEC is the international network of the circular economy field, including professionals and organizations with over 7,000 members, 280 CEC local clubs in 140 countries. The CEI provides access to the world’s top circular economic experts across 30 countries with over 350 alumni.

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