清水正行 | Doorkeeper

清水正行

Communities I'm an organizer of

Gunma.web

91 members

Communities I'm a member of

ガジェットもくもく会

7 members

Code for Tokyo

314 members

Tokyo Hackathons Open Data

GMS(ジオメディアサミット）

573 members

Code for Japan

889 members

Tokyo Hackathons Open Data

Data Visualization Japan

475 members

Tokyo Data Analysis Database

Topics I'm interested in