Funded Artificial Intelligence Startups in Tokyo
Disclosed round sizes in this Tokyo AI list cluster tightly below the top end, with Sakana AI’s $129M Series B on 2025-11-20 acting as the clear outlier.
Disclosed round sizes in this Tokyo AI list cluster tightly below the top end, with Sakana AI’s $129M Series B on 2025-11-20 acting as the clear outlier. The next-largest disclosed rounds are Shizen Connect at $17M (2026-05-25) and MW at $19M (2026-06-11), while most other disclosed amounts sit around $2M–$10M; several recent entries also show “undisclosed” amounts (e.g., Malme on 2026-06-12 and AIsing on 2026-06-01). Timing is another strong pattern: 16 of 17 rows fall in 2026, spanning 2026-04-08 through 2026-06-24, indicating a concentrated recent window rather than a spread across many quarters.
City data is almost entirely Tokyo, with every listed company using “Tokyo” in the location field except Sakana AI, which is “Tokyo, Japan” but still within the same metro label. On stage classification, Seed rounds appear multiple times (Kotoba Technologies $10M on 2026-06-24; dodoAI $2M on 2026-06-18; MW $19M on 2026-06-11; Zaimo.ai is Seed but undisclosed on 2026-06-01), while “Series Unknown” and “undisclosed” amounts are frequent classification/price gaps (12 of 17 rows are either Series Unknown or have an undisclosed amount).
Most recent rounds
17 shownRelated listings
Frequently asked
What stands out in disclosed funding size, and how does it compare to the rest of the Tokyo AI rounds shown?
Sakana AI’s $129M Series B on 2025-11-20 is dramatically above the rest; the next-largest disclosed amounts are MW at $19M (2026-06-11) and Shizen Connect at $17M (2026-05-25), with most other disclosed rounds ranging roughly from $2M to $10M (e.g., Kotoba Technologies $10M on 2026-06-24, dodoAI $2M on 2026-06-18).
Do these funded AI rounds concentrate in a narrow date window rather than spreading across the year?
Yes. Sixteen of the 17 entries are dated in 2026, with the displayed range running from 2026-04-08 (Mign) to 2026-06-24 (Kotoba Technologies), making the 2026-04 to 2026-06 period the dominant cluster in this list.
Are any cities or geographies over-represented, or are there location-based outliers?
Every company is listed with Tokyo in the location field (for example, Kotoba Technologies and dodoAI both as “Tokyo, Tokyo, Japan”), and there are no alternative cities shown. The only geography variation is labeling style, not a different city cluster, since Sakana AI is “Tokyo, Japan” on 2025-11-20.
What does the stage mix look like across the most recent entries, and is “Series Unknown” common?
Seed appears repeatedly with disclosed amounts, including MW ($19M on 2026-06-11), Kotoba Technologies ($10M on 2026-06-24), and dodoAI ($2M on 2026-06-18). At the same time, classification and pricing gaps are frequent: multiple rows are marked “Series Unknown” (e.g., Tier IV on 2026-06-09 with $6M; Malme on 2026-06-12 with undisclosed), and several entries have undisclosed amounts (e.g., AIsing on 2026-06-01; Zaimo.ai on 2026-06-01).
Which rounds are in the most recent 90-day slice of the dates shown?
Using the latest date shown (2026-06-24 for Kotoba Technologies), all entries dated from roughly 2026-03-26 onward fall in the last 90 days. In the displayed data, that includes 2026-04-08 through 2026-06-24, such as Mign ($2M) on 2026-04-08 and Kotoba Technologies ($10M) on 2026-06-24.
Are there additional “attention” outliers besides the $129M Sakana AI round?
Yes on both high-end and low-visibility. On the high side, MW ($19M on 2026-06-11) and Shizen Connect ($17M on 2026-05-25) are the next-largest disclosed rounds, while on the low-information side several entries have undisclosed amounts (e.g., Malme on 2026-06-12 and Pyrenee on 2026-05-29), making them standout candidates for diligence when competitive pricing visibility matters.
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