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About Kellen

Brussels Office Since

European Office Since: 1989

Firm Description

Kellen professionals are educated in a variety of relevant disciplines and well versed in understanding the challenges and opportunities of associations and coalitions. Our Brussels staff of over 40 includes professionals from over 15 nationalities and with a wide range of expertise and experience. Together they serve over 35 associations of European or global membership.

Kellen is a global association management, public affairs and communications company delivering dynamic, scalable solutions to clients for more than 50 years. We are serving more than 125 trade associations, professional societies and charitable organisations representing over 10,000 companies and 100,000 professionals worldwide.

Ownership Structure


International Network

Kellen has a global presence, headquartered in Washington DC and represented in Europe, Asia and North America.

Key Strengths

Association Management, Regulatory & EU Affairs, Strategic Advice & Planning, Global Consulting, Marketing & Communications, Digital Strategy, Meetings & Events.

Number of Public Affairs Consultants


Key Clients

  • EUROBAT – Association of European Automotive and Industrial Battery Manufacturers
  • ERA – European Equipment Rental Association
  • ISC – International Stevia Council
  • EU Salt – European Salt Producers’ Association
  • EPBA: European Association of Portable Batteries
  • ECMA: European Candle Manufacturers Association
  • EASEE gas: European Association for the Streamlining of Energy Exchange – gas
  • AMFEP: Association of Manufacturers and Formulators of Enzyme Products
  • INATBA: International Association for Trusted Blockchain Applications

Testimonials and why clients like to work with us

“The Brussels based Kellen team provided full support to get IAMA off the ground and become the global authoritative voice for independent aircraft modifiers. Their experience in global transport and aviation clients and strategic advice during the formation helped us tremendously. In my position as IAMA Managing Director in 2019 – Dec 2021, I particularly appreciated the deep association management knowledge, and ongoing assignments including administration, legal, finance, as well as advocacy outreach to members and stakeholders”.

Nicole Noack – former Managing Director IAMA, Lead of New Product Development / R&D, DANCE co, Berlin

“For the last 15 years, Kellen has been decisive in structuring the European Rental Association and facilitating its development, which has been greatly valued by its members. It allowed ERA to gain a European position in terms of communication and public affairs involvement by consistently bringing in the right expert”.

Michel Petitjean – Secretary General, ERA

“The International Stevia Council has worked towards the approval of steviol glycosides from new production technologies as food additive and sweeteners at international level, through approval by Codex (an agency of FAO/WHO). Kellen is managing the Secretariat of the ISC and its Executive Director – a Kellen senior employee – has liaised with member companies in ISC to form the position of the industry. The ISC Secretariat has built strong relationship with several Codex country delegations and was instrumental in implementing the advocacy campaign as to ensure the final approval by CODEX. Kellen has the strategic intelligence, the insight and the competencies to work closely together with member companies to assess the best way forward and execute a successful advocacy plan.”

Sidd Purkayastha – Vice President, Head of Global Scientific & Regulatory Affairs at PureCircle/Ingredion, International Stevia Council President

Best in Brussels 2023/24 Report

Best in Brussels is the first and only independent resource for organisations wanting to identify, compare and choose the best partners in Brussels for their advocacy needs.