About Mainline

Mainline's mission is to promote health and fulfill the human rights of people who use drugs:

without a primary focus on the reduction of drug use and with respect for the individual drug user's freedom of choice and capabilities.


All of Mainline’s activities are carried out in the interests of harm reduction.

Harm reduction offers people the chance to control their use of drugs and take back their own lives within realistic boundaries.

Harm reduction thus restores human dignity and increases quality of life for people who use drugs.

Core values

The experiences and motivations of people who use drugs and the contexts in which drug use takes place constitute the point of departure for Mainline’s actions. Furthermore, Mainline works on the basis of the following norms and values:

• Non-moralising
• Evidence-based
• People-centred
• Authentic - creative and free-thinking
• Pragmatic - we get to work
• Activist


  1. Offering and implementing harm reduction interventions

  2. Promoting the human rights of people who use drugs

  3. Supporting and promoting harm reduction as a method and as a broad mindset

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Developments, trends in the area of drug use and health. Keep informed about our projects and training courses abroad.


More about us

More about our objectives & our reasons to be



Machteld Busz

International Programme Manager (maternity leave from February to June 2017)

Georg Bröring

International Programme Manager a.i. (February to June 2017)

Jos Luteijn

Trainer (international)

Monica Carriere

Country Manager for Kenya

Nick Veldwijk

Country Manager for Nepal and Innovation manager

Hatun Eksen

Country Manager for Indonesia, Georgia and South Africa

Joost Breeksema

Monitoring & Evaluation Officer


Rian Warmoeskerken

National Programme Manager

Sara Woods

Project leader for the national department

Guido van Diepen

Fieldworker and editor-in-chief of Mainline magazine

Toon Broeks

Field worker and editor

Ingrid Bakker

Chemsex team

Leon Knoops

Chemsex team

Annet Vogelaar

Fieldworker and editor

Ferry Barendregt

Trainer (national)


Herman Kalter

Financial manager

Desiree van Dok

Office manager

Anca Iliescu


Dorinde van Helden

Webmaster & newsletters (until end of April 2017)

Mick Jonkman

Communications Officer

Rosanne Koning

Social entrepreneur


Victor Everhardt

President, Alderman of Utrecht (D66).

Laetitia De Leede


Gerard Schippers

Gerard Schippers, Em Professor of Addiction-behaviour and Care evaluation, AMC-Department of Psychiatry (also at Jellinek-Arkin)

Wim Buisman

Board member International

Hatun Eksen

Working at Mainline as project leader International


There are no vacancies at the moment.

Annual report 2015

Close to the field
Mainline’s people are often outdoors, which means: close to the field. Meet the people behind the stories from from Nepal, Georgia, Kenya and South Africa. Ride with us and get a peek behind the scenes.

Read our
Annual report 2015

Our International Team supports local fieldwork-oriented organisations with the primary objective of raising awareness of harm reduction. If required, the support can take the form of a motorbike, as was the case in Kenya.

Our National Team visits prisons, drop-in centres and consumption rooms, conducts fieldwork online or knocks on people’s doors.

Effective fieldwork is impossible without back-office support. Our budgeting, planning and record keeping is managed by a team of four. Meet the people behind the stories.

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