FLUX is a Developer Tools company based in Tokyo, Japan. It has raised $72M in total funding. Latest round: Series C.
FLUX is a Developer Tools company based in Tokyo, Japan. FLUX has raised $72M in total disclosed funding. That places its disclosed total in the $25M–$100M range. Its most recent disclosed round is a Series C announced in May 2026. The round record for FLUX runs through 2026; nothing later has been disclosed. Investors on record include JIC Venture Growth Investments, NTT DATA Japan, SOMPO Growth Partners, Salesforce Ventures, DNX Ventures, Sony Innovation Fund and 3 others. 9 distinct backers are named across the disclosed rounds.
We update the FLUX record whenever a new round is filed or announced, so the totals above track the public record rather than estimates. Related Developer Tools companies in Tokyo and their backers are listed below.
The investor deck FLUX used to raise — 2014 (Raise…, Other (Seed/Series A context), 10-slide deck is broken down slide by slide, including the slides it leads with and the questions it leaves open.
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