Most British butterfly species remain in decline. We aim to halt and reverse these declines. Our vision is of a world rich in butterflies for future generations to enjoy.

We are also committed to the conservation of moths, which are close relatives of butterflies and are in rapid decline.

Butterflies are beautiful and intrinsically valuable. Together with moths, their sensitivity to environmental change makes them valuable indicators of the health of the countryside. 

We have more than 12,000 members and 31 volunteer Branches throughout the British Isles.

We employ over 50 people including many highly qualified scientists, making us the world's largest research institute for butterflies and moths.

Our Chief Executive, Dr Martin Warren, has been praised for his work raising awareness of butterfly declines by BBC Wildlife magazine, which ranked him as one of the UK's top 10 conservationists.

We operate 33 nature reserves and we are involved in 67 landscape-scale projects to conserve habitats.

We have been rated one of the top environmental charities by the website Intelligent Giving.

Thanks to an £806,000 Heritage Lottery Fund grant, we launched the Moths Count project to address moth declines.