The Invasive Non-Native Specialists Association (INNSA) is the industry body for companies involved in controlling and eradicating invasive non-native species in the UK.

    INNSA aims to improve standards within the industry and offer peace of mind to clients.

    Read more

    INNSA members are committed to providing the highest possible level of service to both commercial and domestic customers.

    Whatever your requirement, whether it’s to do with Japanese Knotweed, Giant Hogweed, Himalayan Balsam or any other invasive non-native species we have a member who will be able to help.

    Read more

    INNSA is a membership organisation, and we welcome new members from within the invasive species removal industry, as well as consultants and suppliers to the trade.

    Review our protocol and complete the online application form now or request further information from info@innsa.org

    Online application


INNSA is proud to provide clear information for our members and their clients about invasive non-native species and their treatment.

A wealth of information on the origins, implications and treatment of invasive non-native species can be found in this section.

Further guidance on preventing Japanese Knotweed can also be found at https://www.gov.uk/guidance/prevent-japanese-knotweed-from-spreading

Read more


Case studies

Latest news