In this third study on extra-curricular science activities in Hong Kong, the Croucher Foundation identified 471 organisers of these activities that took place across the territory in the 12-month study period (June 2017 to May 2018). We used the data collected to compile a digital map which shows the geographical distribution of the organisers of the out-of-school STEM activities identified. For organisers with multiple branches, only their headquarters or head office was mapped. To enhance visualisation, organisers in the same building were placed adjacently without overlapping.

Yau Tsim Mong District in Kowloon, and Central and Western District and Wan Chai District on Hong Kong Island were the areas with the highest density of out-of-school STEM organisers. Yuen Long District in the New Territories was an emerging area possibly because of its vicinity to the Hong Kong Wetland Park and Mai Po Natural Reserve.

The yellow flags represent government-related organisations and schools, including tertiary institutions. Green and red flags represent non-governmental organisations and private companies respectively. Organisers with no addresses were not mapped.