Our Team

TheRockGroup team integrates experience and knowledge from people with very different professional and personal backgrounds to aid in the transition to a sustainable society. Because TheRockGroup combines experienced business savvy partners and critical young energetic consultants, we have a well-balanced effective team. Most certainly we have the passion for sustainability in common, with each team member contributing unique skills to achieve our overall goal: a more sustainable economy and society.

With experience in corporate organizations, SME’s, start-ups, knowledge institutes, NGO and government environments in the Netherlands and beyond as a result we are able to collaborate well with a range of different stakeholders. Furthermore, it gives us the capacity to provide the link between strategic business planning and ‘on the ground’-reality.

Together we form the building blocks of an experienced, enthusiastic, informal and well-functioning team.

Therockgroup-Elfrieke-van-Galen

Elfrieke van Galen has a legal background and extensive management experience in the logistics…

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Therockgroup-Bertus-Tulleners

Distinguishing means from ends allows you to work on the right challenges in the…

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Associate Partner

For over 15 years, Lettemieke has lead cross-functional sustainability programs with triple bottom line…

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liesbeth-lens-sustainability-consultant-therockgroup

Consultant

Liesbeth has a broad background in sustainability, can digest large amounts of information, and…

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Consultant

Kelsey’s has an international background, coming from the United States where she studied environmental…

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Yitong Chen therockgroup

Researcher

After working one year at TheRockGroup, Yitong decided to enrich her knowledge of risk…

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Foto-TRG_Rosanne-Alderliefste

Rosanne has an educational background in European policy, European economics, human rights and environmental…

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Consultant

Barry has a broad business background. He finished his Master’s in Business Administration and…

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Consultant

Linda is originally from our neighboring country Germany with an educational background in marketing.…

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Jonna is currently studying Hospitality Management at Hotelschool The Hague and is expected to…

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Support Manager

Jordy is the youngest member of our team. He currently studies Business Administration at…

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Portrait of team member TRG Sarah Gane

Consultant

Sarah is a French young professional, graduated in European Affairs and international relations. She…

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colleague of TRG Cas Smitmans

Consultant

Cas has an educational background in business administration. After obtaining his bachelor’s degree at…

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