In this September virtual ISKO UK Meetup, four speakers gave a demonstration of tools that help them building taxonomies, including: 

1. PoolParty CardSorting software with Ian Piper - Slides
2. Thesaurus manager Similarity and Suggestions with Niké Brown 
3. Graphcommons with Phil Stacey   Slides
4. Qualitative data analysis computer software Nvivo 12 with David Haynes Slides