Join Terras Tuscany | June 2-4, 2026 →
Terras is a global network for leaders committed to climate action
Terras is a global network of senior leaders driving the future of sustainability. Membership and curated gatherings connect leaders across business, finance, policy, and philanthropy.
THE TERRAS ADVANTAGE
Profitability and growth
Cost reduction
Resilience
Competitive advantage
Every conversation, introduction, and gathering at Terras is designed to drive business value through sustainability.
THE TERRAS COMMUNITY
Across business, finance, policy, and philanthropy. Across events and membership. One trusted community navigation the decision that will define the next decade of sustainability leadership.
95%
Sustainability leaders
62%
return for another Terras event
200
member cap
We admit a limited number of new members each year to preserve the quality of the network.
34%
Corporate sustainability
CSOs, VPs, Heads of ESG
12%
Legal and policy
GCs, regulatory, compliance
6%
Philanthropy, NGOs
Ministers, senior advisors
3%
Academia
Professors, fellows
8%
Government
Ministers, senior advisors
22%
Finance and investment
Fund managers, PE, impact
15%
Founders and CEOs
Climate tech, cleantech, advisory
Represented across energy, technology, luxury, insurance, food and beverage, real estate, healthcare, and more.
Founder & CEO
Terras was founded by Marvin Rottenberg to bring sustainability leaders together through real human connection. Built on the belief that bold ideas emerge in intimate settings, Terras creates space for collaboration, reflection, and action on today’s most urgent climate challenges.
Our Advisory Board brings together senior leaders from business, policy, and civil society.
Chief Sustainability Officer, Rivian
Managing Director, Hamilton Clark
Chief Sustainability Officer, Estée Lauder
Chief Sustainability Officer, Steve Madden
Partner, WilmerHale
Fmr. Chief Sustainability Officer, Starbucks
Executive Director & Secretary General, Watch and Jewellery Initiative 2030
Founder and Co-Head, Global Sustainability Practice, Russell Reynolds Associates
Invite-only membership and events uniting senior leaders across business, finance, policy, and philanthropy.
Year-round connections through tailored introductions, member calls, and city meetups.
Small, highly selective gatherings designed to foster trust and meaningful exchange.
Off-the-record conversations in a distraction-free setting where leaders speak openly.
What is shared in the room stays in the room.
We give as much as we receive. No solicitation.
Progress comes from cooperation across sectors.
Impact is strongest when values and business align.
Executives from leading companies are active across Terras memberships and gatherings worldwide.
%201.svg)
%25201.svg)
.svg)
%25201.svg){kind=logo}
Whether through an event or membership, Terras is where senior leaders find the frameworks, language, and relationship to move faster.
.avif)
.svg)