Catharina Rinzema is a former Member of the European Parliament for the VVD (Renew Europe). Her portfolio included international trade, technology, AI, online child safety, and relations with the United States.
Catharina helps organizations translate European politics, industrial strategy, and reputation into concrete market and stakeholder outcomes. She does this through targeted lobbying, strategic communications, coalition-building, executive engagement, policy events, and navigating the process to secure appropriate EU funding.
Her focus is on tech, AI, defense, industry and economic security, healthcare, finance, and space. Catharina previously worked at Google in Dublin, ABN AMRO, and the Reading & Writing Foundation. She also gives guest lectures at Nyenrode Business University and serves as a mentor in the Women in International Security Brussels program. Her approach is personal and practical: clear strategy, direct communication, and a focus on results.
Head of Castro Belgium and Luxembourg
Catharina Rinzema
Lobby
As Head of Belgium & Luxembourg and a member of the Castro EU team, she advises international companies seeking to strengthen their position in Europe from the Castro office in Brussels.

With Castro since 2025