It connects your experience with the wider profession by showing how your insight, leadership, and impact contribute to meaningful environmental and social outcomes.
As an ISEP Fellow, you will:
Be recognised for leadership, influence, and sustained impact
Contribute to shaping the future of the sustainability profession
Share your expertise and support the development of others
Applying for Fellowship is straightforward and you’ll need to evidence your experience, impact, and leadership through the application process.
Fellowship recognises your ability to lead through complexity and deliver meaningful sustainability outcomes.
You are acknowledged not just for what you know but for how you apply it to influence decisions, shape practice and support others.
Becoming a Fellow demonstrates to employers, peers, and stakeholders that you are:
A highly capable and experienced sustainability professional
A strategic thinker able to navigate complexity
A trusted leader influencing outcomes beyond your immediate role
Fellowship also positions you within a network of experienced professionals contributing to the evolution of the sustainability field.
ISEP Fellowship recognises your expertise and connects you to a community of sustainability leaders.
Recognition at the highest level
Be recognised against ISEP’s highest professional standard.
Join an influential network
Connect with experienced sustainability leaders within the dedicated Fellows Network across the world.
Shape the profession
Contribute to the development of standards, thinking, and future practice.
Share and grow your influence
Mentor others, share insight, and contribute thought leadership.
Strengthen your professional credibility
Demonstrate trusted expertise during a period of rapid environmental and societal change.
Thought leadership is a core element of Fellowship.
Fellows contribute by:
Thought leadership may be highly visible or exercised through trusted influence and both are equally valued.
Being an ISEP Fellow recognises real contribution and impact. It brings me into a network of highly talented people using their expertise to tackle sustainability challenges in practical ways. This represents a great opportunity to learn from what how others have succeeded or failed in their endeavours and provides valuable insights.
ISEP Fellowship represents the highest level of professional recognition in the field. These are not people learning the profession. They are the people who have shaped it.
Dedicated workshop available to members and non-members Join our experienced Fellow and Full Assessor, Carol Brass (FISEP, CEnv), for a focused 1.5 hour workshop. There are a maximum of 10 participants and a fee of £25. We have a July workshop and will arrange a September session depending on demand – please complete the form above to register your interest.
Becoming a Fellow recorded session if you are an ISEP member, you can access Connect’s 45-minute session outlining the application process and responding to common questions.
Exclusive! Session for all prospective Fellows (ISEP members and non-members) Featuring our Fellows, you will hear from experienced professionals as they discuss Risk-Led Management: Putting People at the Heart of Sustainable Impact on 15th October 2026. If you're a current ISEP member, join ISEP Connect live and select the session. If you're new to ISEP, register your interest by completing the form above and a recording will be sent following the session.
Applying for Fellowship is an opportunity to reflect on and evidence your impact.
The process includes:
The process is rigorous, fair, and constructive — not intimidating.
Please note: You can also apply for Chartered Environmentalist (CEnv) alongside your Fellowship application. The membership team will confirm this with you during the process. Additional fees of £132 apply.
Whether you're looking to upgrade your existing membership or join ISEP as a Fellow, please complete the form and our Networking and Relationship Manager will be in touch as soon as possible.
Complete the form to explore how your expertise can shape a more sustainable future.
Before completing this form, please confirm you understand the following:
To become an ISEP Fellow, you must:
