Andrew has been involved in nightlife related issues for many years participating in local nightlife strategic planning; developed campaigns utilising social marketing approaches; providing training and conducting research. His current work includes adverse childhood experiences, healthy weight and physical activity initiatives. Andrew spoke at the first Club Health conference in 1997 and has attended most international events. Along with host city colleagues, he has organised recent Club Health conferences in Prague, San Francisco, Lisbon, Dublin and Amsterdam. Occasionally, Andrew takes to the stage as a member of a funk and soul band.

Judith Noijen is a senior staff member of the prevention department of Jellinek in Amsterdam. Jellinek Prevention responds to developments in the field of alcohol and drug related issues, education, policy and research. Judith’s focus has been on promoting the role of health and education in preventing nightlife related risks. She has done so through research, drug checking, staff training, peer education interventions and setting up a strong network and structure in close cooperation with event organisers and club owners.

Ella is a cultural consultant with an emphasis on social and urban development. She is the co-founder of the Night-Mayor foundation in Amsterdam; an independent, non-profit organization dedicated to maintaining a dynamic nightlife while strengthening connections between the municipality, small business owners and residents to sustain Amsterdam as a creative capital. She loves to be at the forefront of social, and cultural development in nightlife and beyond. She works on the progressive harm reduction campaign ‘Celebrate Safe’ a national campaign for all the festivals and clubs that support safe partying. Think in possibilities not limitations is her credo. Next to her main projects she is always busy with spaces and places to stimulate the creative value for the city of Amsterdam.

Tobias is a freelance health promotion and harm reduction research consultant with a focus on nightlife.

He has been working for more than ten years as a researcher and policy advisor in the field of recreational drug use. He was involved in the monitoring of drug-related health incidents in Amsterdam, drug checking, writing guidelines for professionals, and the development of health promotion campaigns in nightlife settings.

Tobias has set up the second drug checking service in Amsterdam. Currently, he is working with Jellinek Prevention on the Celebrate Safe project and on the implementation of an alcohol prevention program targeting students.

Floor van Bakkum, is manager at Jellinek Prevention in Amsterdam. She is involved in development of local and national policy concerning alcohol and drugs (in the city of Amsterdam and nationwide). Floor is spokesperson and a member of the city's so called red alert team. The red alert team assesses the situation on the drug market and decides if a warning should be issued to the public.

Inez is Trainee policy advisor at the Public Affairs EU & International department of the municipality of Amsterdam. She is involved in the coordination of the (inter)national health networks of the local governments. Inez focuses on connecting the various parties and governments within the health sector. She could assist you in finding experts in other international cities regarding developments in the field of alcohol and drug related issues, education, policy and research.

Julie is a policy advisor at the Public Order and Safety department of the municipality of Amsterdam. In recent years she worked for the municipality on various issues related to crime control and safety at events and the hospitality industry.

She was involved in the development and implementation of Amsterdam's policy framework on dance events (regarding drugs, health issues and safety) and is responsible for the preparations for the Amsterdam Dance Event - the ‘world’s biggest club event’.