# Erik Byrenius

> Erik Byrenius is a seed investor at Mudcake (Stockholm) backing Health Care and Security. See 12 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Mudcake](https://shizune.co/investors/profile/mudcake)
- Location: Stockholm, Sweden
- Total investments: 12
- Last investment: Jun 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/byrenius
- X (Twitter): https://twitter.com/byrenius
- Website: https://trellisroad.com

Erik Byrenius is a founding partner of Mudcake, a microfund run by ex-founders dedicated to making the world a better place for the next generation. We invest in the strongest founders shaping the way we produce, distribute and consume food. Our typical ticket is $200k-$600k in pre-seed and seed rounds globally.Previously he was the CEO andco-founder of food delivery business OnlinePizza (exit to Delivery Hero), founder of StartupTools and co-founded the angel syndicate Nordic Makers.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $360k–$2.1M |
| Pre-Seed | $233k–$1.6M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 4 | 33% |
| Security | 3 | 25% |
| Software | 3 | 25% |
| Information Technology | 3 | 25% |
| Internet | 2 | 17% |

42 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 6 | 50% |
| Pre-Seed | 3 | 25% |
| Angel | 2 | 17% |
| Funding Round | 1 | 8% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Sweden | 8 | 67% |
| United States | 2 | 17% |
| Belgium | 1 | 8% |
| Denmark | 1 | 8% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Koppie | Koppie is a company has developed a patent-pending fermentation and roasting technology that transforms locally sourced pulses | $1.6M | Pre-Seed | Jun 26, 2025 |  |
| Digitail | Pet care has stagnated and veterinarians need modern tools to build long-term and meaningful relationships with pet parents. Digitail is solving the gap between the ever-growing expectations of millennial pet parents and the experience offered by veterinarians with their current tools. | $233K | Pre-Seed | Jul 09, 2019 |  |
| Elsa | Elsa is a platform for patient driven research for better drugs, health and prevention. Elsa lets patients become their own personal researchers by providing them with a better understanding around how lifestyle factors may affect their disease activity measurements for chronic disease. To support them from a scientific perspective, Elsa gives themaccess to data on their specific disease (initially we work with rheumatoid arthritis) through the Riskminder foundation and scientific studies at Karolinska Institutet. | $700K | Seed | Oct 18, 2018 |  |
| Mavenoid | Mavenoid develops AI-driven support and troubleshooting tools for hardware companies. It works with hardware and consumer electronics companies to automate technical support and onboarding for customers spanning everything from printers and ovens to electric scooters and industrial equipment. | $1.9M | Seed | Oct 12, 2018 |  |
| Kind | We want all healthcare providers to enjoy the benefits of modern communication. Kind is a secure cloud platform for communication and knowledge sharing. We meet the needs of organizations of all sizes with our flexible subscription model. | $800K | Pre-Seed | Jul 19, 2018 |  |
| Grace Health | Grace Health is the first women’s health platform designed for emerging markets and was founded in 2018 by Swedish entrepreneurs Estelle Westling and Thérèse Mannheimer. The app creates a safe environment for health information for women with low health literacy and low digital literacy. It has been awarded by Fast Company and Wired as the topinnovations in the Nordics. The Grace Health platform has over 1.3 million registered users in Ghana, Nigeria, Kenya and South Africa and sold to Penda Health, one of Kenya's largest health care providers in November of 2023. More here https://medium.com/grace-health-insights/kenyan-medical-care-chain-penda-acquires-impact-startup-grace-health-to-bolster-its-on-demand-cd019fbda5a1. |  | Angel | May 23, 2018 |  |
| Minut | Minut is a computer software company that specializes in product design, hardware, electronics, software, IoT, and smart home. Its technology helps individuals to keep their house secure and manage their house security using their smartphones. The company was founded in 2014 and headquartered in Malmö, Skane Lan. | $2.1M | Seed | Nov 22, 2017 |  |
| Peergrade | Give students a better learning experience with faster and more thorough feedback while saving time and money. Peer grading offers a way to dramatically reduce the time spent on grading while increasing the quality of feedback. |  | Seed | Sep 01, 2016 |  |
| Greta | Greta helps developers to shorten content load times, reduce buffering and increase content quality. This improves their product’s end user experience, especially during traffic spikes, which leads to higher conversion rates, more engaged users and a better bottom line.By using machine learning technology Greta analyzes network data inreal-time, and automatically calculates the fastest route for the content to be delivered, which improves performance. Greta currently supports images, audio and video.The implementation takes a few minutes, and you can then easily make configurations in the UI and access your own dashboard to evaluate how your content delivery setup affects your end users’s experience. | $273K | Angel | Sep 22, 2015 |  |
| Spotscale | Conceptual 2D sketches are fine, and often very pretty, but they have obvious limitations. A 3D fly-trough or virtual tour of a future neighbourhood is an infinitely more expressive communication tool. Interactive 3D models that are based on real world scans of the environment enable a whole new level of understanding, dialog and experimentation tooccur in your projects. | $1M | Seed | Jul 08, 2015 |  |

10 of 12 investments shown.

## Co-investors
- [Walking Ventures](https://shizune.co/investors/profile/lean-investments) — VC Fund, 2 deals together
- [Nordic Makers](https://shizune.co/investors/profile/nordic-makers-vc) — VC Fund, 2 deals together
- [The Nordic Web Ventures](https://shizune.co/investors/profile/the-nordic-web-ventures) — VC Fund, 2 deals together
- [ABB Ventures](https://shizune.co/investors/profile/abb-technology-ventures) — VC Fund, 1 deal together
- [Creandum](https://shizune.co/investors/profile/creandum) — VC Fund, 1 deal together
- [Crowberry Capital](https://shizune.co/investors/profile/crowberry-capital) — VC Fund, 1 deal together

## About Mudcake

VC Fund · Stockholm, Sweden

Mudcake (formerly Trellis Road) is a microfund run by ex-founders dedicated to making the world a better place for the next generation. We invest in the strongest founders shaping the way we produce, distribute and consume food. Our typical ticket is $200k-$600k in pre-seed and seed rounds globally. So far, our portfolio includes 20+ startups on 4continents.

2 contacts available at Mudcake.

| Name | Title | Profile |
| --- | --- | --- |
| Anna Ottosson | Founding Partner | https://shizune.co/investors/profile/anna-ottosson |
| Erik Byrenius | Founding Partner | https://shizune.co/investors/profile/erik-mellstrm-byrenius |

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## FAQ

### What does Erik Byrenius invest in?

Erik Byrenius invests primarily in Health Care, Security and Software startups, most often at Seed and Pre-Seed stage. Most of the 12 investments tracked by Shizune back companies in Sweden. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Erik Byrenius's check size?

Erik Byrenius typically joins rounds of $360k–$2.1M at Seed and $233k–$1.6M at Pre-Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Erik Byrenius participates in.

### When did Erik Byrenius last invest?

The most recent investment recorded for Erik Byrenius closed in Jun 2025. Shizune tracks 12 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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