# Juan Carlos Ruiz Cubo

> Juan Carlos Ruiz Cubo is a seed investor backing Software and Commercial. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Location: Madrid, Spain
- Total investments: 1
- Last investment: Dec 2022
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/ruizcubo

Juan Carlos Ruiz Cubo is a seed investor in Madrid focused on Software and Commercial. Juan Carlos Ruiz Cubo

## Contacts

5 contacts available for Juan Carlos Ruiz Cubo: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/juan-carlos-ruiz-cubo?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 1 | 100% |
| Commercial | 1 | 100% |
| Consulting | 1 | 100% |
| Industrial | 1 | 100% |
| Electronics | 1 | 100% |

10 industries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| WAISENSE | WAISENSE s a technology-based engineering company founded in 2018, specialised in product development and innovation offering R&D and innovation consulting services in: i) hardware and software development for different clients, from the original design, prototyping and industrialisation of products; and ii) innovative business developmentconsultancy for collaborative and technological projects and other activities such as market research, patents and trademarks, marketing, competition, graphic design, among others.WAISENSE track record includes patents in 17 countries, 37 smart-city projects, +150 events and interviews, + 24 publiched reports, +30 awards and recognitions, 45 products developed, +500 tons CO2 emissions avoided with our products and the ones we develop for our customers and +4M€ in private and public collaborative projects across Europe. WAISENSE is the current brand name designates its internationally patented, eco-efficient and innovative solutions for improving the water efficiency of plumbing installations in a variety of applications. Incorporates: a) hot water recirculation without adding a dedicated return line b) leak detection and stoppage; c) IoT water-metering; d) smart irrigation functionality; e) freezing risk prevention; f) online monitoring and control of each previous function; g) smart-speakers and other systems/platforms compatibility and many more functions patented.We are developers, manufacturers and marketers of WAISENSE technology, which generates a reduction of costs in projects and installations, an improvement in the quality of life of users and customer service and an increase in property value, among other advantages for the SmartHome and SmartCity segments. | $569.9K | Seed | Dec 01, 2022 | https://waisense.com/es/ |

1 of 1 investments shown.

## Co-investors
- [15k Angels](https://shizune.co/investors/profile/15k-angels) — VC Fund, 1 deal together
- [COREangels](https://shizune.co/investors/profile/coreangels) — VC Fund, 1 deal together
- [EIT Climate-KIC](https://shizune.co/investors/profile/eit-climate-kic-accelerator-spain) — VC Fund, 1 deal together

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## FAQ

### What does Juan Carlos Ruiz Cubo invest in?

Juan Carlos Ruiz Cubo invests primarily in Software, Commercial and Consulting startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in Spain. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Juan Carlos Ruiz Cubo?

Public channels for Juan Carlos Ruiz Cubo include LinkedIn. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Juan Carlos Ruiz Cubo last invest?

The most recent investment recorded for Juan Carlos Ruiz Cubo closed in Dec 2022. Shizune tracks 1 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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