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Welcome to The Institute of Sustainability and Environmental Professionals (ISEP)

Formerly known as IEMA – ISEP is the global membership body that sets the standard for anyone wanting sustainable change that delivers for the environment, society, and the economy. ISEP’s purpose is to empower our members to become global changemakers, so they can transform the world today for a sustainable future.

Learn more about our evolution
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Catch up on ISEP Connect 2025!

ISEP Connect 25: Empowering Changemakers Globally - our online conference helped to engage with and empower sustainability and environmental professionals to become agents of change.  If you missed any sessions or simply want to re-watch some of your favourite - log in now and catch up!

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OUT NOW: Transform Jan/Feb Issue

What will it really take to turn sustainability ambition into action in 2026? The latest issue explores how sustainability leaders are driving change in complex, high-pressure systems: from health and farming to data, policy and tourism.

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COP30 UN Climate Change Conference

As nations gather in Brazil for the international climate change conference, COP30, ISEP looks at the steps needed for a fair global transition and new ISEP guidance on climate skills, circular economy and greenhouse emissions. Watch this space as we cover the unfolding events at COP 30...

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ISEP new shop is live!

Our new ISEP shop is now live! From expert best practice guides to ethically made merch, the ISEP Shop has everything you need to live your values and lead with impact.

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Listen to the latest episode of the Sustainable Matters Podcast

ISEP CEO and host Sarah Mukherjee MBE meets Claire Poole, founder of Sport Positive, which she set up in 2018 to help the global sport industry place sustainability right at the heart of the sector. Claire discusses how athletes are the historical figures of our time and how being pragmatic and staying hopeful can help fight against greenlash.

Sustainable Matters
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Connect with members near you

Our global networks run hundreds of events each year that connect members, provide knowledge and share best practice. Find an event taking place near you or join one of the many online opportunities to learn, share and meet.

Events
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State of the Sustainability Profession Report

The 11th edition of the State of the Profession Report aims to provide insights on the role and impact that sustainability professionals are making within their organisations. The findings in this report are spread across five interconnected sections: roles and remits, structures and governance, investment and impact, the future landscape, and the path ahead.

Read the report now
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Become an ISEP member - set the standard, shape the future

Join today
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Chart your progress and drive your professional development with ISEP’s Sustainability Skills Map and Membership Standards

Sustainability skills map
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Transform the way you work with ISEP corporate programmes

Corporate partnerships
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Extend your expertise and develop your workforce with ISEP training

Upcoming Courses

Already a member? Download your square badge and email signature now.

ISEP paper: 

Natural Capital is Critical Infrastructure

A new policy paper from the Institute for Sustainability and Environmental Professionals (ISEP), titled Natural Capital is Critical Infrastructure, calls for the protection, enhancement, and restoration of natural capital to be placed at the heart of the UK’s economic growth and national resilience strategy.

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Engage with our Global Networks

The Global Networks spearhead ISEP’s voice and member engagement worldwide, advocating for the efforts of local members.

As the representatives of ISEP, these networks organise events, workshops, and seminars that spotlight the latest trends and challenges in sustainability and the environmental sector. Moreover, the networks foster valuable connections among industry experts, including you, the ISEP member!

View our list of networks, learn about their activities and see where you can engage with members near you.

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Spotlighted event

Northern Ireland: ISEP & CIWM: Collaboration for a Green Transition

Wednesday 4 March 2026 | 8:45 - 1:30pm GMT

Join ISEP & CIWM Northern Ireland Joint in-person Event for International Women's Day .

This year we proudly align with the global #GiveToGain campaign, celebrating generosity, collaboration, and shared progress at a time when working together has never been more important. As we move towards a net-zero, circular, and sustainable future, a green transition must also be a just transition. Hear from Zoë Lenkiewicz of Global Waste Lab, a leading voice with over 20 years’ experience in waste management across the UK, Africa, and South-East Asia, as she shares how community ownership, equity, and sustainability are transforming waste systems in the Global South.

You’ll also discover the Future Island–Island project, a collaborative design ecosystem accelerating grassroots green transitions, with ambitions to scale its impact globally. Join us for an inspiring evening of insight, connection, and collective action. This inclusive event welcomes everyone, regardless of gender, and offers a relaxed and welcoming space to connect, share ideas, and engage in meaningful conversations about the environmental challenges we face.

Latest News & Blogs

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Why does it matter? Intergovernmental Science‑Policy Platform on Biodiversity and Ecosystem Services being held in Manchester this week

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Nature recovery in England: Reflections from ISEP’s recent roundtable

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ISEP announces the appointment of three new Non-Executive Directors to its Board: Tim Wood, Warren Percival FISEP CEnv, and David Symons FISEP CEnv.

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