Hej/Hi from Stockholm!
I am the CTO of Planethon. 
We are part of the neo4j startup program. We are building a knowledge graph that combine data from earth science, new technologies, business assessments and planet champions. The idea is to combine that data into a planet intelligence knowledge graph. We are also building a social graph that connect researchers, entrepreneurs and business developers, advisers and investors.
We have a prototype for web and neo4j and are starting to add tools and intelligence. All guidance of architecture, tools, systems, libraries, languages, models, etc are highly appreciated! 
Glad to meet you!
Carina
