Investors in the Environment (iiE) is a national not-for-profit environmental accreditation scheme designed to help organisations reduce their impact on the planet. With a clear, structured framework and expert support, iiE makes sustainability achievable for businesses of all sizes and sectors. Members progress through Bronze, Silver, and Green levels, working towards continual improvement in areas like net zero, energy and water efficiency, waste reduction, sustainable transport, and biodiversity.

At its core, iiE is about empowering organisations to make meaningful change—offering the tools, guidance, and recognition needed to embed sustainability into day-to-day operations. Accredited members benefit from increased credibility, cost savings, and the opportunity to lead by example.

iiE is more than just an accreditation—it’s a community of like-minded organisations committed to environmental responsibility and climate action.