About the Institute of Sustainability and Environmental Professionals

We are the Institute of Sustainability and Environmental Professionals - the global membership body that sets the standard for anyone wanting sustainable change that delivers for the environment, society and the economy. We are transforming the world today for a sustainable future.

Sustainability matters. Environmentally, economically and socially.

The Institute of Sustainability and Environmental Professionals (ISEP) is the global membership body for anyone wanting sustainable change that delivers across government, business and society.

By harnessing the collective expertise and experience of our global membership, we set the standard in sustainable leadership, knowledge, skills and practice.

Whether you’re an environmental specialist, a sustainability generalist, or just want to be a champion for change in your area – we empower people with cutting-edge evidence and insights, enable with world-class training and guidance, and ensure excellence with unrivalled professional standards and assessment.

We are passionate about uniting talent, creating collaborations and forming networks that influence government policy, drive best-practice within business, and inspire change across society.

No matter what stage you’re at in your career or what sector you work in, we can equip you with the skills, standards and support needed to nurture your talent and advance your career.

Our view of sustainability

At ISEP, we take a holistic (or ‘big picture’) view of sustainability. For us, it includes impact assessment, environmental management and corporate sustainability, and those working to tackle climate change, waste, enhancing social value and biodiversity, as well as driving efficiency and managing risk. We don’t underestimate these challenges but we believe that together we have a genuine opportunity to change things for the better.

We believe in the power of sustainability to make a real and positive difference for individuals, businesses, communities, society and ultimately our planet, and there’s never been a more important time to focus on sustainability issues.

ISEP's purpose is to empower our members to become global changemakers, so they can transform the world today for a sustainable future.

Our commitments

Equality, Diversity and Inclusion

Sustainability Policy

Our history

In 1998, IEMA was formed by the merging of three organisations – the Institute of Environmental Assessment (formed mainly of corporate members), the Environmental Auditors Registration Association (EARA, formed of individual professionals working in Environmental Assessment), and the Institute of Environmental Management.

In 2014, IEMA merged with the Global Association of Corporate Sustainability Officers, incorporating corporate sustainability into the environmental agenda. Since then, we have expanded our work to encompass everything in both environmental management and sustainability.

Now, in 2025, we have become The Institute of Sustainability and Environmental Professionals (ISEP), representing sustainability and environmental professionals globally – across government, business and society.

25 years of ISEP

Way, way back in 1999, I joined the Institute of Environmental Management (IEM) and the Environmental Auditors Registration Association (EARA), just before they merged to form ISEP. Over the past two and a bit decades (yes, I really am that old), I have been a proud and active member of our professional body. ISEP is a fantastic source of information and a true melting-pot for professional collaboration and influence over both industry and government. In all my time as a member I have always felt supported by ISEP and somewhat emboldened by the validation that membership has given me. I remember becoming a Chartered Environmentalist in 2006 and my boss at the time (a Chartered Chemical Engineer) told me that I couldn't become 'Chartered' because I wasn't an Engineer. This 'underestimation' of the importance of environmental management and sustainability as a profession has always stuck with me as another myth worth busting!

Frances Stones FISEP, IMS Lead Auditor

From finance to sustainability

My journey with ISEP has been an immensely enriching experience. Originally from a finance background, I felt a calling towards sustainability after four years in the industry. This led me to pursue a Master's in Sustainable Development, which served as a pivotal point in my career transition. Upon completing my studies, I ventured into the realm of sustainability consultancy, where my employer urged me to embark on the ISEP journey. Recognising the value of aligning with a professional body to deepen my understanding of sustainability and stay abreast of emerging trends, I eagerly embraced the opportunity. Upon successfully passing the Associate exam, I seized the chance to contribute further by joining the Sustainable Finance Network Steering Committee. Within this role, I collaborate with industry leaders to drive initiatives aimed at advancing the sustainable finance agenda and promoting ESG principles. It's been immensely fulfilling to help organise various webinars and Insight Journals, thereby disseminating crucial sustainability knowledge within the finance community. For those considering embarking on this journey, I wholeheartedly encourage you to take the leap. It's a continuous path of self-improvement and professional growth, offering invaluable opportunities to make a meaningful difference in the world of sustainability.

Albert Seoane AISEP, Senior Officer

My journey with ISEP

I started my journey with ISEP back in 2018 as an Associate Member. I was looking for a place where I could learn more about the environment, having just taken on some additional responsibilities at work in my then role as Health and Safety Coordinator. Gradually, over the course of the last five years, I have undertaken several courses from the Foundation in Environmental Management to just completing my Diploma in Sustainable Business Practice. During that time, I've also successfully moved into a Sustainability and ESG Management position within a prominent company with a global footprint, and I also sit on the ISEP Climate Change and Energy Steering Committee. I have no doubt that ISEP has been instrumental in the success of my career, and I will continue to develop my membership as my career progresses with Full Membership as my next milestone.

Sara Halliday PISEP, Sustainability and ESG Manager, ASD Limited

A global institute

I joined ISEP in May 2021 as an Affiliate member. As a founding committee member of the Chartered Quality Institute's (CQI) sustainability special interest group, established the same year to promote sustainability within the quality profession in practical terms through the provision of a forum where quality professionals network, exchange best practices and ideas and share material on sustainability issues, I needed to join a globally respected professional body on environmental management and sustainability to enhance my knowledge and skills. Although based in Nigeria, joining ISEP provided me access to CPD opportunities, which enabled me to stay up-to-date with the latest trends, legislation and best practices in environmental management, which I in turn used to provide valuable insights to other quality professionals. ISEP provides a wealth of resources, including guidance documents, case studies and research reports, which are invaluable for me as a management systems consultant seeking to implement best practices in environmental management, and I'm happy to be a part of a global network that provides ample opportunities to connect with other professionals in the field, facilitating knowledge exchange and collaboration on projects or initiatives.

Adare Oluwafemi PISEP, Management Systems and Sustainability Implementation Consultant

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