What is ISSUP?

We are a membership organisation for the global substance use workforce.

Our vision is a future where drug demand reduction is a global priority. Where there is universal access to ethical, evidence-based prevention, harm reduction, treatment and recovery support. A future where better lives are possible for millions of people.

Our mission: We are an international network that unites, connects and shares knowledge across the substance use prevention, harm reduction, treatment and recovery support workforce. Our global mission is to make the work of our members as impactful, accessible and effective as possible. We do this by making it easier to discover and share evidence-based knowledge, best practice, training and networking opportunities.

ISSUP’s contribution is informed by science and promotes evidence based, high quality and ethical practice. Learn more about our Code of Ethics.

Solutions and Services 

Online platforms have a central role to play in transforming how substance use professionals connect, communicate, and collaborate. Our website, newsletters, webinars, and social networks are developed to facilitate knowledge sharing and easy access to the latest information from across the sector. We also provide access to research published in Addictology Journal.

We provide networking opportunities through online discussion groups, in-person events, and regional initiatives such as our National Chapter Network.

We offer professional development support through access to training, education, and opportunities to gain qualifications and credentials.


ISSUP exists for its members and to provide them with relevant tools and opportunities. Membership is free and is offered at four levels to suit different career paths. We do not limit our provision to our members. However, by becoming a member, individuals can access our full range of tools and benefits.

Your membership enables you to:

  • Take courses (face-to-face and online) developed by our partners and gain qualifications through the ISSUP Professional Development Hub.
  • Create your own member profile and share your work, projects, and events via our website.
  • Join regional and topic focused discussion groups.
  • Receive our twice monthly Newsletter and get regular event notifications.
  • Find national and international networking opportunities.
  • Attend annual ISSUP workshops with benefits for members.
  • Contact other members using the ISSUP Member Directory.
  • Sign up to a code of ethics.
  • Get information and resources for students and early career professionals.

Read the membership guide to learn more about what we offer and apply.

Get in touch

To find out more about how we can help you, please email: info [at] issup [dot] net