Seed Funded Startups in Japan
Among the 39 Seed rounds shown, the largest disclosed amount is FormX’s $18M (2025-09-24).
Among the 39 Seed rounds shown, the largest disclosed amount is FormX’s $18M (2025-09-24). That figure dwarfs most other disclosed rounds in the list, which cluster largely at $2M–$3M (e.g., several entries at $3M on 2025-11-13, 2025-11-04, 2025-10-14, 2025-10-13, and 2025-10-09), while other disclosed sizes sit far below $18M (such as Porty’s $540K on 2025-11-29 and JCAS Airways’ $3M on 2025-11-04). On concentration patterns, Tokyo is repeatedly represented across the most recent dates (e.g., Porty 2025-11-29 in Kawasaki; several Tokyo-based rounds on 2025-11-22, 2025-11-17, 2025-11-16, and 2025-11-08), and multiple “AI” entries appear across the window rather than only in isolated dates (e.g., Kimitona $10M on 2025-11-27; Japan Superconducting Application Development $3M on 2025-11-13; DriveX $330K on 2025-10-10). The disclosed-round window runs from 2025-09-10 (Popokii, undisclosed) to 2025-11-29 (Porty $540K), and 10 of the 39 rows show “undisclosed” amounts, including BEFFY (2025-11-28) and Vitom (2025-11-17).
Most recent rounds
39 shownRelated listings
Frequently asked
What stands out on deal size in this Seed Japan slice?
FormX is the clear size outlier with $18M on 2025-09-24; the next-largest disclosed amounts are $10M (Kimitona on 2025-11-27 and UMIAILE on 2025-10-16). Many other disclosed rounds cluster around the $2M–$3M band, including Japan Cyber Defense at $7M on 2025-11-13 and multiple $3M rounds such as JCAS Airways (2025-11-04), Lean Mobility (2025-10-14), and NOMU (2025-10-13).
Are specific cities over-represented among these recent Seed rounds?
Tokyo dominates location across the list, appearing for entries such as Porty’s nearby Kawasaki presence on 2025-11-29, and multiple Tokyo-based rounds in the same recency window (e.g., AI Mage on 2025-11-22 for $1M; CORE on 2025-11-16 as undisclosed; Ocean on 2025-11-16 as undisclosed). Outside Tokyo, notable clusters include $10M UMIAILE in Sumida (2025-10-16), Kimitona in Nagoya ($10M on 2025-11-27), and Bio/health-adjacent representation in Sendai with Bionto ($400K on 2025-09-27) and NanoFrontier (undisclosed on 2025-11-14).
Which companies were funded in the most recent 90-day window covered here?
The most recent date in the table is 2025-11-29 (Porty, $540K), and the page only spans 2025-09-10 to 2025-11-29. That means every row shown falls within that overall window; for the subset closest to the top, recent examples include Porty (2025-11-29, $540K), Grow Rich English School (2025-11-23, $380K), and Japan Superconducting Application Development (2025-11-13, $3M).
How often are amounts undisclosed, and does that affect identifying size leaders?
10 of the 39 rows show “undisclosed” amounts (for example, BEFFY on 2025-11-28 and Vitom on 2025-11-17). Because the size leader is still identifiable from disclosed figures (FormX $18M on 2025-09-24), undisclosed deals mainly add uncertainty for the lower-to-mid range rather than changing which rounds are the largest disclosed outliers.
Is there a visible sector pattern, particularly around AI?
AI appears repeatedly across different themes rather than being concentrated in one sub-industry: Kimitona pairs AI with a $10M disclosed round on 2025-11-27, Japan Cyber Defense (cybersecurity/government) comes with $7M on 2025-11-13, and FormX combines AI with B2B software and data at $18M on 2025-09-24. Other AI-adjacent entries include AI Mage ($1M on 2025-11-22) and DriveX ($330K on 2025-10-10), indicating an AI-heavy skew even when the verticals differ.
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