Guokr, a Japan-based online community for science, has received $20m in series C funding, $15m of which came from education technology company Tomorrow Advancing Life (TAL), Technode has reported.
The other $5m was provided by media and data provider IDG and additional, undisclosed backers.
In addition to running a science-based social community with 25 million users each month, Guokr has also published more than 100 books. It began running online courses in science and other fields in 2012.
Guokr, which was founded in 2010 as a non-profit organisation, previously raised $3m in 2011 from Trustbridge Partners, subsequently securing an undisclosed amount of series B funding from IDG.