Treo House | OUR PEOPLE

OUR MEMBERS

COLLABORATORS NOT CUSTOMERS

Treo House is a co-creation of it's members. Everyone who is part of it is responsible for looking after the collective, bringing energy and ideas and challenging the organisation to reach it's potential. Most of our members work in environmental and social impact, in corporate, public services, policy, NGO, start-ups, creative and academia.

Join us

FOUNDER

GEMMA LANNON

Gemma started Treo House and is responsible for overseeing the whole organisation, joining the dots and filling the gaps. Read the story...

OUR COMMITTEE

REPRESENTING MEMBERS IN OPERATIONAL DECISIONS

TRIBENI CHOUGULE

Outdoor and inclusive leadership coach, DEI & social sustainability consultant and writer.

Using lived experience to drive positive impact for diversity and inclusion, gender equality and social impact.

JAMES ROGERS JONES

An engineer working at the tension point between the world's digital needs and planetary limits, making data centers more sustainable.

Learning how to hold space for the new ideas and difficult questions we haven't found the answers to yet.

DAIANNA KARAIAN

A social entrepreneur, writer, teacher & everyday activist. Co-founder of Today Do This.

Child of Venezuelan immigrants, born and raised in the United States & transplanted to Britain.

EVENT COLLABORATORS

GATHERERS, FACILITATORS & HOSTS

HEATHER LYNCH

Coach and facilitator, supporting people to create meaningful change in a way that feels energising, fulfilling and easeful.

WILL BROWN

Writer, curator and consultant, helping organisations & practitioners to cultivate, rather than force, change. Founder of Garden Thinking, Tending to Endings and Collaborative Residencies.

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JOE BRETTLER &

RORY OXENHAM

Founders, creatives, strategists. Building and supporting human-first businesses that bring people back together in real life.

JESSICA FERROW &

HEATHER KNIGHT

Regenerative facilitators, strategic guides and creators. Founders of Arteri, Tending to Endings, Twelve, Kindred Village and The Regeneralist.

BEN PEERS

A creative thinker and doer, always observing, making stuff and trying to leave the world a little better than it was before.

RACHEL KAN

Author, ecosystem architect and business developer in circular and regenerative fashion.

UAL: LONDON COLLEGE OF COMMUNICATION

Students studying a masters in Service Design.

Three groups from the 2025/2026 cohort are partnering with Treo House to design events that enable connection between people who are working on environmental and social challenges.

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BILLY RINE

Connector of people and ideas. Climate policy expert who sees climate change as just one symptom of a larger problem: disconnection from the land and each other.

OUR CO-CREATORS

STRATEGISTS . DESIGNERS

SAVANNAH HENSHAW

Culture and equity strategist and researcher. Connecting people, ideas, and possibilities to create more just systems.

JACK CASTLES

Multidisciplinary industrial designer. systems strategist and consultant. Passionate about regenerative design, user-centric innovation, and using design as a tool for systemic change.

NICOLE ALEXANDER

Consultant, social psychologist, systems thinker and behavioural economist. Founder of Noetic consultancy.