# Sunna Ventures

> Sunna Ventures is a VC fund backing Manufacturing, B2B and Mining. See 6 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Total investments: 6
- Last investment: Jul 2026
- Lead investor: 17%
- Last updated: Aug 2026
- Website: https://sunna.vc

Sunna Ventures is a climate tech focused venture capital firm.

## Contacts

5 contacts available for Sunna Ventures. Shizune tracks 2 team members at Sunna Ventures. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/sunna-ventures?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $4.7M–$28M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Manufacturing | 2 | 33% |
| B2B | 1 | 17% |
| Mining | 1 | 17% |
| Sensor | 1 | 17% |
| Mineral | 1 | 17% |

19 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 4 | 67% |
| Pre-Seed | 1 | 17% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Brazil | 1 | 17% |
| Switzerland | 1 | 17% |
| United States | 1 | 17% |
| Cayman Islands | 1 | 17% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Johann von Sothen | Venture Fellow | 1 | https://shizune.co/investors/profile/johann-von-sothen |
| Luis Arbulu | Managing Director | 0 | https://shizune.co/investors/profile/luis-daniel-arbulu |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Adaptive insurance | Adaptive insurance, which begins with parametric insurance, seeks to transform how companies develop financial resilience in the face of weather-related and climate-related events. By combining our cutting-edge coverages, real-time climate data, and AI-driven technology, we think we can support them and show business consumers the benefits ofparametric insurance. | $5M | Seed | Jul 07, 2026 |  |
| Atana Elements | Atana is a data-driven resource company that accelerates the exploration and development of flowing critical minerals. | $27.5M | Seed | Jun 02, 2026 |  |
| Gravis Robotics | Gravis Robotics develops retrofit autonomy systems for heavy construction machinery, converting standard excavators and loaders into AI-enabled, semi- or fully-autonomous earthmoving machines. The company installs a rooftop-mounted “Gravis Rack”, a suite of sensors, compute, and automation hardware, along with a touchscreen interface called “GravisSlate,” allowing operators to control equipment manually, with augmented assistance, or automatically. Its system adds capabilities like real-time 3D surveying, terrain-aware excavation, adaptive cycle-time optimization, and remote or on-site control. Gravis serves contractors, rental firms, and equipment fleets seeking to increase throughput, improve safety, and reduce variability on job sites. | $23M | Seed | Nov 28, 2025 |  |
| BackChannel | BackChannel is an online B2B platform for inventory transactions and for buying and selling online goods. | $4.7M | Seed | Nov 19, 2025 |  |
| Magnefy | Magnefy (previously known as Infinion) is a Stanford spin-out pioneering an edge AI-powered, high-frequency magnetic sensing platform for real-time predictive maintenance of critical power assets like transformers, switchgear, and generators. Our $500 non-invasive IoT solution captures 250× more low-noise, high-frequency data—accurately detectingfailures like partial discharge and higher harmonics weeks to months in advance, at one-tenth the cost of legacy systems. We help mission-critical facilities—data centers, IPPs, utilities, and manufacturers—avoid outages, boost reliability, and maximize power efficiency. | $1.7M | Pre-Seed | Aug 04, 2025 |  |
| Unblock | Unblock is a climate technology company that offers a solution to mitigate emissions. | $13.5M | Seed | Jul 08, 2025 |  |

6 of 6 investments shown.

## Co-investors
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund, 1 deal together
- [Armada Investment AG](https://shizune.co/investors/profile/armada-investment-group) — VC Fund, 1 deal together
- [Better Ventures](https://shizune.co/investors/profile/better-ventures) — VC Fund, 1 deal together
- [Borusan Ventures](https://shizune.co/investors/profile/borusan-ventures) — VC Fund, 1 deal together
- [Climate Capital](https://shizune.co/investors/profile/climate-capital) — VC Fund, 1 deal together
- [Collaborative Fund](https://shizune.co/investors/profile/collaborative-fund) — VC Fund, 1 deal together

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### Similar stage
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## FAQ

### What does Sunna Ventures invest in?

Sunna Ventures invests primarily in Manufacturing, B2B and Mining startups, most often at Seed and Pre-Seed stage. Most of the 6 investments tracked by Shizune back companies in Brazil. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Sunna Ventures's check size?

Sunna Ventures typically joins rounds of $4.7M–$28M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Sunna Ventures participates in.

### How do I contact Sunna Ventures?

Public channels for Sunna Ventures include the website linked on this profile. 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.

### Who are the partners at Sunna Ventures?

The team at Sunna Ventures includes Johann von Sothen (Venture Fellow) and Luis Arbulu (Managing Director). The Team section lists each member with their title, investment count and links.

### 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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