Funded Energy Startups in Japan
Among the 10 most recent energy rounds shown, the largest disclosed amount is Clean Energy Connect’s $122M (2026-05-28), which dwarfs the next-highest disc…
Among the 10 most recent energy rounds shown, the largest disclosed amount is Clean Energy Connect’s $122M (2026-05-28), which dwarfs the next-highest disclosed figure of $11M (Monochrome, Series B, 2026-04-22). A second disclosed-high cluster sits much lower, with several entries in the single-digit millions: Tensor Energy $6M (2026-04-02) and Sharing Energy $5M (2026-04-17).
Geographically, Tokyo dominates the list: PLUGO ($2M, 2026-06-25), Monochrome ($11M, 2026-04-22), Sharing Energy ($5M, 2026-04-17), Exergy Power Systems (undisclosed, 2026-05-11), Clean Planet (undisclosed, 2026-03-11), and Enerbank Japan (undisclosed, 2025-11-25) are all based in Tokyo. Temporally, the rows span from 2025-11-25 (Enerbank Japan) to 2026-06-25 (PLUGO), with most disclosed financings concentrated in spring 2026; five of the 10 entries are labeled Series Unknown (and four are disclosed as “undisclosed”).
Most recent rounds
10 shownRelated listings
Frequently asked
What stands out as the largest recent disclosed round, and how far above the rest is it?
Clean Energy Connect’s $122M on 2026-05-28 is the clear outlier; the next-largest disclosed amount is Monochrome’s $11M on 2026-04-22. Other disclosed rounds in the same window include PLUGO at $2M (2026-06-25) and Tensor Energy at $6M (2026-04-02).
Are there geographic clusters in these Japan-based energy rounds?
Tokyo is heavily over-represented: multiple entries are headquartered in Tokyo, including PLUGO ($2M, 2026-06-25), Monochrome ($11M, 2026-04-22), Sharing Energy ($5M, 2026-04-17), Exergy Power Systems (undisclosed, 2026-05-11), Clean Planet (undisclosed, 2026-03-11), and Enerbank Japan (undisclosed, 2025-11-25). Outside Tokyo, the list includes Otemachi-area “Clean Energy Connect” (listed as Otemachi, Tokyo), plus Fukuoka for Tensor Energy (2026-04-02) and Kyoto for Flosfia (undisclosed, 2026-05-10).
How much of the list is concentrated in the most recent months shown?
The most recent date in the table is 2026-06-25 (PLUGO). Between 2026-06-25 and 2026-04-17, 7 of the 10 rows appear (PLUGO 2026-06-25; Clean Energy Connect 2026-05-28; PXP 2026-05-21; Exergy Power Systems 2026-05-11; Flosfia 2026-05-10; Monochrome 2026-04-22; Sharing Energy 2026-04-17).
What does the stage mix look like across these 10 entries?
Series Unknown appears in 5 of the 10 rows (PLUGO, Clean Energy Connect, Exergy Power Systems, Flosfia, Clean Planet), while disclosed Series labels include Series B (PXP is Series B but undisclosed; Monochrome is Series B with $11M; Enerbank Japan is Series B but undisclosed) and Series A (Tensor Energy with $6M). The only explicitly shown Series C is Sharing Energy (Series C, $5M on 2026-04-17).
Are there notable amount outliers besides the top round?
Besides Clean Energy Connect’s $122M (2026-05-28), the only other fully disclosed high-print is Monochrome at $11M (2026-04-22); the rest of the disclosed amounts shown cluster at much lower levels, including Tensor Energy $6M (2026-04-02), Sharing Energy $5M (2026-04-17), and PLUGO $2M (2026-06-25). Multiple rows are “undisclosed” (e.g., PXP on 2026-05-21; Exergy Power Systems on 2026-05-11; Flosfia on 2026-05-10; Clean Planet on 2026-03-11; Enerbank Japan on 2025-11-25), limiting comparisons below $11M.
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