About the ESA Conference Bureau

The ESA Conference Bureau is supported by Congrex Holland, a subsidiary of CIM Global, leading company in international professional conference organisation. 

As a contractor onsite Congrex Holland has been an ongoing presence within ESA since 1989 initially managing the reception area and the conference facilities, and later offering administrative and logistical support to directorates needing event or meeting management.

In the years since the ESA Conference Bureau has organised well over 1500 conferences and meetings, held at nearly every ESA facility and at independent commercial venues abroad in many of the 18 member nations and beyond.

Quite appropriately in 2003, the role of Congrex Holland as what was originally know as the ESTEC Conference Bureau shifted into that of a full professional conference organiser for the entire Agency, and gave the bureau a new name: ESA Conference Bureau, or ECB.

Our Approach:

Our core values define the way we do business. Congrex as an organisation is committed to being: 

Caring: Your project deserves care and attention. We apply our passion, commitment and dedication to make sure we deliver what you expect and require - We care.

Reliable: Your project needs to be on target and on time. We have the expertise and knowhow to produce results. For almost 30 years we have been the partner you can rely on.

Efficient: Your project has ambitious goals. We always work in the most efficient and effective way to ensure we deliver on our promises.

Imaginative: Your project asks for inventive solutions. We are your imaginative partner, always looking for creative solutions to fulfill your objectives. 

Congrex provides services tailored to our clients’ needs when organising meetings, events, conferences, association management, travel and accommodation. Established in 1982, Congrex serves a variety of industries from our offices and partners located around the globe. Our extensive client base includes national and international associations, governmental organisations and corporations.
Clients’ success is what drives Congrex. We believe the best part of our work is the close relationship we establish with our clients, which allows us to address their challenges and deliver exciting projects.

News and Media

Management buyout secures future for Congrex Holland
Congrex Holland BV’s management team, consisting of Jarno de Boer, Managing Director and Rob Eskes, Director Business Relations, have entered a partnership with Prasant Saha, CEO of CIMGlobal to ensure the success of all projects, the entity and its employees for the future.

Read more here.


How the ECB supports ESA
Read the Case study – European Space Agency: 1250th Conference delivered at European Space Agency



The Congrex team at the ESA Conference Bureau is always interested in interns who would like to have a future in the events industry.  Working at the European Space Agency puts you in the heart of an international organisation, made up of scientists and professionals from throughout Europe and beyond. You will have opportunities to work with a wide range of persons, and work on projects taking place all over Europe.

Are you the bright, capable and driven intern we could use in our office in Rome? Are you interested in a challenging internship at the Congrex office in the Netherlands?

Positions, beginning 2015:
- Delegate Relations Intern - ESTEC, The Netherlands
- Event Support Intern - ESTEC, The Netherlands
- Event Support Intern - ESRIN, Italy

If you think you can rise to the challenge of being an asset to this team, send your motivation letter and a CV to the persons below, 

Internship in the Netherlands:

Internship in Italy:

Download more info here.

Please note: you must be a student currently enrolled in a course of study, and some events experience is valuable. Fluency in English is a requirement, and for the ESRIN office, knowledge of Italian is an advantage.

Meet the Team

Contact us at esa.conference.bureau@esa.int
At ESTEC, Office Bf003:

Catherine Kalamidas
Bureau Manager
Ext: 58746

Gonnie Elfering
Senior Advisor
Ext: 55056

Danielle van der Maarel
Meeting Planning Manager
Ext: 54160

Carla Prevoo
Meeting Planning Manager
Ext: 56507

Marie Hertrich
Meeting Planning Consultant
Ext: 53766

Eveline van Beekhuizen
Meeting Planning Consultant
Ext: 58602

At ESRIN, Office 02107:

Carmen Comparetto
Meeting Planning Manager
Ext: 80912

Anne-Lisa Pichler
Meeting Planning Consultant
Ext: 80918