# Bank of the Ryukyus

> Bank of the Ryukyus is a VC fund in Naha backing Security, Manufacturing and Waste Management. See 11 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Naha, Japan
- Total investments: 11
- Last investment: Jul 2026
- Lead investor: 9%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/bank-of-the-ryukyus-ltd-8399-
- X (Twitter): https://twitter.com/ryuginrobo
- Website: http://www.ryugin.co.jp/
- Facebook: https://www.facebook.com/ryugin.jp

Bank of the Ryukyus is a VC fund in Naha focused on Security and Manufacturing. Bank of the Ryukyus provides financial services. They offer information about the insurance products. They provide life insurance and non-life insurance products.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Security | 2 | 18% |
| Manufacturing | 2 | 18% |
| Waste Management | 2 | 18% |
| Telecommunications | 2 | 18% |
| Apps | 1 | 9% |

29 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 4 | 36% |
| Debt Financing | 2 | 18% |
| Series A | 1 | 9% |
| Series B | 1 | 9% |
| Funding Round | 1 | 9% |

7 stages tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| AlgaleX | AlgaleX is a food technology and biotechnology company that develops AI-powered algae fermentation technology to produce sustainable food ingredients, nutritional compounds, and bioproducts. The company leverages proprietary AI-driven cultivation and fermentation systems to convert underutilized food byproducts into high-value microalgae rich innutrients such as DHA, umami compounds, and other functional ingredients. Its mission is to build a circular bioeconomy by reducing food waste while providing sustainable alternatives to marine- and animal-derived ingredients.The company's core technology is Touji-24, an AI-powered algae cultivation and fermentation control system that automates and optimizes microalgae production. Using proprietary fermentation processes and food byproducts such as awamori lees, AlgaleX cultivates algae that can be used to produce Umamo, a plant-based ingredient combining seafood-like umami flavor with high concentrations of DHA. This approach reduces reliance on wild-caught fish as a source of omega-3 fatty acids while upcycling food industry byproducts into valuable nutritional ingredients. | $2.2M | Series A | Jul 10, 2026 |  |
| New Innovations | New Innovations company is offering a snuggling service to many people who support Japan's “high quality”. AI and robots do not take away the job, but robots support the work that is accomplished without the involvement of people, and many working people are aiming for the future to create a more humanoid life. With the problem of lack oftalent, it was difficult to reflect technology on OFF Line until now, trying to provide robots in the “food and drink” and “retail” industry, CEKAI's first demand forecast AI unmanned cafeThe robot “√C” was developed. √C is not “looking for coffee that suits me”, but instead realizes “coffee is perfect for me” with demand forecasting AI. Today, people who drink coffee are choosing their favorite cafe, canned coffee, convenience store coffee, etc., according to their taste needs, SPEED needs, and hospitality needs. The company developed the service as a new choice of coffee, and in the future, the perfect coffee according to the taste preferences, busy, physical condition and mood of the day., which aims to provide. In July 2019, the company receives a third party quota increase of 70 million yen from Zashid Capital and DEEPCORE. From August 1, 2019, with the cooperation of Nankai Electric Railway, “√C” will be installed at Namba Station/Namba Skyo, and demonstration experiments will begin. | $11M | Debt Financing | Mar 26, 2026 |  |
| EF Polymer | EF Polymer is an agricultural firm. The company came up with the idea to utilize this waste most efficiently without creating any kind of pollution. It developed an Eco-Friendly Water Retention Natural Polymer named "Fasal Amrit" which can absorb 300 times more water than its weight for as long as 10-12 days. It helps to reduce irrigationwater requirement by 30-40% along with a 40-50% reduction in fertilizer because it prevents the leaching of fertilizer causing 10-20% fertilizer loss. The "Fasal Amrit" itself is made from organic waste hence it has a great number of micronutrients to support the better growth of crops/plants. It is organic in nature, chemical-free, and pollution-free, and what is interesting, it is 100% biodegradable in the soil after 5-6 months of application. The farmers can reduce their cost of water and fertilizer by 20-40% and can increase the yield by 10-20%. The application of "Fasal Amrit" includes but is not limited to in-house plants to save them for a week or two in case you are not at your home to water them, keep your garden green forever by reducing the daily watering cycle, enhance the growth of your plant in an organic way, save your plant far from your home or on hilly areas where it is difficult for your water them daily, etc. | $7.1M | Series B | Apr 16, 2025 |  |
| Issin | Issin manufactures bath mats that can measure weight and automatically record daily weight changes on your smartphone. | $2.8M | Venture - Series Unknown | Feb 04, 2025 |  |
| Swivel | Swivel's mission is to create the fishing brand. | $348.6K |  | Oct 03, 2023 |  |
| Ana Neo | Ana Neo is a digital lifestyle and mobile gaming platform that provides a virtual entertainment experience. | $37.9M | Debt Financing | Mar 16, 2022 |  |
| FullStem | FullStem is a company specializing in high-density mass culture technology for stem cells. FullStem creates and sells low-cost, safe, and portable culture equipment for use in clinics, as well as mass culture technology for treatment. FullStem proposes non-woven scaffold-based next-generation stem cell mass culture platform technology. | $9.9M | Seed | Nov 15, 2019 |  |
| Re:Build | Re:Build is to create the world where we can help each other. Re:Build company was born from the desire to help those who challenge.Our mission is to create a world where help and support circulate throughout the business . | $5.7M | Seed | Jul 05, 2019 |  |
| jobmane | jobmane is a company that plans, develops and sells cloud services and marketing consulting for venture companies. |  | Seed | Dec 04, 2018 |  |
| SecureInnovation | Secure Innovation offers a variety of services and products so that we can propose information security that is tailored to each key, so that we choose the key depending on what we protect.We will respond to various issues that our customers face, such as "I don't know where to start," "I want to strengthen our ownmeasures," so please help us solve information security issues. | $7.1M | Corporate Round | Jul 25, 2018 |  |

10 of 11 investments shown.

## Co-investors
- [Okinawa Development Finance Corporation](https://shizune.co/investors/profile/okinawa-development-finance-corporation) — VC Fund, 3 deals together
- [Shinryo Fund](https://shizune.co/investors/profile/shinryo-fund) — VC Fund, 3 deals together
- [Future Food Fund](https://shizune.co/investors/profile/future-food-fund-0851) — VC Fund, 2 deals together
- [Ryugin research Institute](https://shizune.co/investors/profile/ryugin-research-institute) — VC Fund, 2 deals together
- [SMBC Venture Capital](https://shizune.co/investors/profile/smbc-venture-capital) — VC Fund, 2 deals together
- [UTEC - The University of Tokyo Edge Capital Partners](https://shizune.co/investors/profile/utec) — VC Fund, 2 deals together

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## FAQ

### What does Bank of the Ryukyus invest in?

Bank of the Ryukyus invests primarily in Security, Manufacturing and Waste Management startups, most often at Seed and Debt Financing stage. Most of the 11 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Bank of the Ryukyus last invest?

The most recent investment recorded for Bank of the Ryukyus closed in Jul 2026. Shizune tracks 11 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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