# 15th Rock: portfolio, investments and team > 15th Rock is a vc firm based in Japan. 1 investment on record, latest Dec 2024. Portfolio, stages, co-investors and team. Source: https://millionrounds.com/fund/15th-rock (Millionrounds; every figure on the page links to its filing or article) Japan · [Investor](https://millionrounds.com/investors) # 15th Rock Last cheque observed Dec 2024. Silence since then is not evidence of inactivity: our sources miss unannounced rounds. Email Quiet VC firm Seed Series A Series B Capability_expansion Healthcare Biotechnology Follow 15th Rock and see its new cheques in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Ffund%2F15th-rock) Cheques on record **0%** of best year **0** **cheques in 12 months**, 1 on record Since the last cheque **699** days **00** hrs **00** min **00** sec Median round **$7.0M** Cheque size, as they say **$100K – $5.0M** Rounds led **0 of 1** Pitch 15th Rock ## 15th Rock highlights - 01 1 rounds on record - 02 Mostly Seed: 100% of its rounds ## What they do > A VC specialized in capability expansion Translated from Japanese, from their own website - **Type:** VC firm (from a list, unverified) - **Cheque size:** $100K – $5.0M as they say - **Stages:** Seed Series A Series B Growth - **Sectors:** Capability_expansion Healthcare Biotechnology - **Based in:** Minato, Japan - **Cold pitches:** Accepted ## The record Every round we can evidence, newest first **1 appearances** - **2024** 1 round - **Dec** **[Proton Intelligence](https://millionrounds.com/company/proton-intelligence)** Seed · CA · We Venture Capital **$7.0M** With 8 others An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor. ## The team We hold **5** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them. ## What they claim to have backed From their own portfolio page (on their website) **17** of 36 we have independently watched raise [Canaery](https://millionrounds.com/company/canaery)[Cellid](https://millionrounds.com/company/cellid)[Jizaie](https://millionrounds.com/company/jizaie)[Longanvision](https://millionrounds.com/company/longan-vision)[Mechasys](https://millionrounds.com/company/mechasys)[Nobi](https://millionrounds.com/company/nobi)[Note](https://millionrounds.com/company/note)[Onerahealth](https://millionrounds.com/company/onera-health)[Pacific-meta](https://millionrounds.com/company/pacific-meta)[Paradromics](https://millionrounds.com/company/paradromics)[Protonintelligence](https://millionrounds.com/company/proton-intelligence)[Ripcord](https://millionrounds.com/company/ripcord)[Siiibo](https://millionrounds.com/company/siiibo)[Sun-asterisk](https://millionrounds.com/company/sun-asterisk)[Tenet](https://millionrounds.com/company/tenet)[Whill](https://millionrounds.com/company/whill)[Yamap](https://millionrounds.com/company/yamap) 8kt Amtechnologies Bloomlife Bpcom Corp Corp Degasafrica Egenesisbio Ejenta Enecoat Ghoonuts Gojo Lifestack Robust Spirete Stu Stylealert Tdrk-inc Tent-inc Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded. ## The cheque Seed Series A Series B Median round joined **$7.0M** the round, not its cheque Led 0 of 1 rounds **0%** - **Said size:** $100K – $5.0M - **Sole investor:** Never alone - **Last cheque:** Dec 2024 Rounds by stage said on their site - Seed said *1* - Series A said *-* - Series B said *-* - Growth said *-* Cheques by month Led Joined Nov 2023 Oct 2026 **Pitching 15th Rock?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque. Add to your CRM *→* ## Recently backed The latest companies 15th Rock put money into. [**Proton Intelligence** $7.0M · Dec 2024](https://millionrounds.com/company/proton-intelligence) ## Quick answers about 15th Rock ### What does 15th Rock invest in? 15th Rock invests most often at Seed (100% of the rounds on record), in sectors such as Capability_expansion, Healthcare and Biotechnology. ### How active is 15th Rock? 1 investments on record, 0 of them in the last 12 months. The most recent was in Dec 2024. ### What has 15th Rock invested in recently? Its most recent investments on record: Proton Intelligence (Seed, Dec 2024). ### How big are 15th Rock's cheques? The median round it joins is $7.0M. It says it writes cheques of $100K to $5.0M. ### Is 15th Rock investing now? No investments in the last 12 months; the latest was in Dec 2024. ### What kind of investor is 15th Rock? 15th Rock is a VC firm based in Minato, Japan. ### Does 15th Rock take cold pitches? Yes: its own website says it reads unsolicited pitches. ### Where does this information on 15th Rock come from? From 1 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night. ## Raising now? Find the investors who back rounds like yours, and keep every conversation on one fundraising board. Find similar investorsOpen your CRM Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=15th-rock) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=15th-rock)