The Management Team

Pauline Graystone


Pauline is one of the founding members of the GreenHouse Group. Her focus is on the pedagogical and business development aspects of the company. She is British and has lived in Belgium for 20 years, working in private- and public-sector organisations. As well as running the courses, her focus is on maximising the potential of others through coaching, facilitating and training in all areas of leadership.



  • Fluent: English

  • Conversational: French

Sofia Pinheiro


Sofia is a Director at the GHG. She is in charge of the daily running of business and oversees all projects, business development, operations and finances, etc. Sofia is Portuguese and has a background working in international environments since 1998 and is also an ICF-certified coach. She is passionate about helping people to grow, achieve their goals and release their own passions.


  • Fluent: Portuguese, Spanish, English, French

José Simões

Project Assistant & Logistics Officer

José is responsible for all things logistics, as well as for invoicing certain projects. Solving problems is part of what he loves doing. José is a former marine and forest engineer from Portugal who has been living in Belgium for 10 years.


  • Fluent: Portuguese, English, French

  • Conversational: Spanish

William Gandemer

Administrative Officer

Along with managing certain EU projects, William supports the directors in their day-to-day tasks ranging from business development to communications and event planning. A bilingual (EN/FR) TCA (Third Culture Adult), William grew up abroad before settling down in multicultural Brussels where he feels quite at home. His academic and professional background is in European politics and he is currently completing a course in psychology.


  • Fluent: English, French, Spanish.

  • Conversational: Dutch, German

  • Colette Kwong Hing

    Accounting Manager

    Colette is responsible for all the incoming and outgoing invoices at GHG, plus the very important job of payments to all our trainers! Colette is originally from Canada, but has lived in Brussels for 28 years and is a fully-fledged Dutch-/French-speaking Belgian.


    • Fluent: English, Dutch, French

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    Phone:       +32 2 540 81 33


    Rue de la Montagne 54/56

    1000 Bruxelles

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    © 2015 GreenHouse Group