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Home ยป About Johan de Groot

About Johan de Groot

Johan de Groot

I’m Johan de Groot, a Tableau consultant and data visualisation analyst in the Netherlands.
Tableau Visionary, five-time Tableau Ambassador, and one of the organisers of the Netherlands Tableau User Group.

I work the whole chain, not just the front-end: connecting APIs, reshaping data, creating creative data solutions, and then building dashboards people actually use. Freelance since 2012, by way of electronics engineering, Ericsson, IBM and online analytics.

Need Tableau help, short or long term? Get in touch, or see what I do.

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Recent Blogposts

  • Stop using red vs green in dashboards
  • Tableau Toggle Button: 3 Ways to Build an On/Off Switch
  • The Tally extension: CountTo renewed
  • 5 more Tableau Desktop Tips: Fields, Calculations & Pills
  • MeasureCamp Amsterdam 2026: the power of the blank board
  • Datafam Day 2026 – Amsterdam
  • How to create pill-style navigation in Tableau
  • Tableau Visionary 2026
  • Tableau REST API Connector: Add Live Web Data to Your Dashboards
  • Rounded Corner Maps in Tableau

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