If a paid database is not in your budget, advanced Google search commands can be powerful. The key is to use strategic search strings combining your target product with email suffixes.
For a reliable 2022 list, you would need to scrape corporate websites or purchase a B2B database from a Japanese provider like or Goo TEL . Free, pre-packaged lists of Gmail addresses for Japanese companies do not exist because legitimate companies do not use them. If a paid database is not in your
The search for @gmail.com or @yahoo.co.jp addresses typically leads to: If a paid database is not in your