{"question":"Which accelerators back startups in Japan?","answer":"11 accelerators back startups in Japan: they run there or hold at least two portfolio companies based there, 219 portfolio startups in all. The most active here are Plug and Play (100), Techstars (45) and 500 Global (27).","country":"Japan","sector":null,"investors":11,"portfolio_startups":219,"list":[{"name":"Plug and Play","url":"https://alion.io/company/plug-and-play","type":"Accelerator","based_in":"United States","startups_here":100,"examples":["Aeterlink","Araya","ElevationSpace"],"portfolio_rounds_12m":155,"latest_activity":"2026-11-04"},{"name":"Techstars","url":"https://alion.io/company/techstars","type":"Accelerator","based_in":"United States","startups_here":45,"examples":["Listenfield","Kyoto Fusioneering","Sagri"],"portfolio_rounds_12m":97,"latest_activity":"2026-10-29"},{"name":"500 Global","url":"https://alion.io/company/500-global","type":"Accelerator","based_in":"United States","startups_here":27,"examples":["Authlete","Sakana AI","Infostellar"],"portfolio_rounds_12m":35,"latest_activity":"2026-10-21"},{"name":"Open Network Lab","url":"https://alion.io/company/open-network-lab","type":"Accelerator","based_in":"Japan","startups_here":20,"examples":["Connected Robotics","WHILL","Digital Garage"],"portfolio_rounds_12m":0,"latest_activity":null},{"name":"Antler","url":"https://alion.io/company/antler","type":"Accelerator","based_in":"Singapore","startups_here":18,"examples":["KanjuTech","Refined Robotics Pte Ltd","Avete"],"portfolio_rounds_12m":53,"latest_activity":"2026-11-02"},{"name":"University of Tokyo Innovation Platform","url":"https://alion.io/company/university-of-tokyo-innovation-platform","type":"Accelerator","based_in":"Japan","startups_here":13,"examples":["Logomix","Orbital Lasers","WealthNavi"],"portfolio_rounds_12m":1,"latest_activity":"2026-04-10"},{"name":"ERA","url":"https://alion.io/company/eranycglobal","type":"Accelerator","based_in":null,"startups_here":10,"examples":["Closer","RevComm","Boostdraft"],"portfolio_rounds_12m":4,"latest_activity":"2026-07-28"},{"name":"Endeavor","url":"https://alion.io/company/endeavor-3","type":"Accelerator","based_in":"United States","startups_here":5,"examples":["Unifa","WHILL","Sansan"],"portfolio_rounds_12m":55,"latest_activity":"2026-10-23"},{"name":"Metaprop","url":"https://alion.io/company/metaprop-2","type":"Accelerator","based_in":"United States","startups_here":3,"examples":["Asuene","TERASS","toggle holdings"],"portfolio_rounds_12m":5,"latest_activity":"2026-09-11"},{"name":"GROW","url":"https://alion.io/company/gogrow-co","type":"Accelerator","based_in":"Singapore","startups_here":2,"examples":["Listenfield","CRUST JAPAN"],"portfolio_rounds_12m":7,"latest_activity":"2026-10-14"},{"name":"ABBALab","url":"https://alion.io/company/abbalab","type":"Accelerator","based_in":"Japan","startups_here":2,"examples":["Zeals","RATEL"],"portfolio_rounds_12m":0,"latest_activity":null}],"html_url":"https://alion.io/startup-accelerators/japan","json_url":"https://alion.io/startup-accelerators/japan.json","offers":[{"id":"company.list","title":"Companies by industry, country, size, technology and hiring","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per company in a list","note":"the whole list with a card per company","call":{"mcp_tool":"search_companies"},"human":"https://alion.io/catalog?offer=company.list&for=startup-accelerators%2Fjapan"},{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"any company of the list in depth","call":{"mcp_tool":"get_company"},"human":"https://alion.io/catalog?offer=company.slices&for=startup-accelerators%2Fjapan"}],"meta":{"source":"Alion (alion.io), CC BY-SA 4.0","updated_at":"2026-11-07T04:20:00+00:00","built_at":"2026-11-07T04:20:00+00:00","indexable":true,"generated_at":"2026-11-07T17:51:34+00:00","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json"}}