Supporting UK cities to secure Net Zero success. Together.



About 3Ci membership:

Do you have a desire to collaborate with cities and showcase your private sector expertise in the Net Zero landscape?

3Ci private sector memberships are your gateway to an exclusive network of investors and innovators committed to advancing Net Zero.

By becoming a member, you can actively contribute to our mission of supporting UK cities in their journey towards Net Zero sustainability.



As a private sector member, you’ll enjoy a range of benefits, including:

  • Amplified visibility within the public sector.
  • Networking opportunities with Net Zero leaders.
  • Access to local and national government leaders.
  • Guest and speaker invitations to our exclusive member events.
  • Access to select third-party closed events.
  • Facilitated knowledge sharing and the opportunity to share your expertise.

Diverse Membership Tiers

We understand that everyone has a unique vision and mission. That’s why 3Ci offers diverse membership
tiers to align perfectly with your company goals and interests:

Patron Members

Patron Members gain access to 3Ci’s public sector community at the highest level. Join as a Patron to help shape our work and input into policy discussion with senior public sector leaders.

Supporting Members

Take part in 3Ci’s members-only event programme, giving you amplified visibility to the public sector. Network with Net Zero leaders, share your private sector expertise and collaborate to help support UK cities.

Private member events

As a private sector member, you’ll enjoy a range of benefits, including amplified visibility, networking opportunities, the sharing of expertise, and, most importantly, contributing to the overarching objective of supporting 3Ci in helping cities achieve Net Zero sustainability. In essence you will be a co-architect of our ambition of delivering net zero ideals across all cities in the UK.

Here are some of the events you’ll have access to:

  • Invite-only roundtables with senior public sector leadership.
  • UK-wide site visits to explore pioneering examples of Net Zero Neighbourhoods.
  • Private networking receptions bringing together private investors with local authority officials.


“I’ve never been involved in anything quite like this – the scale of collaboration – cross Party and across the country. Every event I attend gets bigger. More and more people want to get involved. It does feel like a real wave of change that’s happening through 3Ci.

– Councillor Georgia Gould, Former Leader, Camden & Former Chair of London Councils



With thanks to our Partners:

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