# Mads Johnsen

> Mads Johnsen is a seed investor at Calm backing Software and Developer Tools. See 3 investments, round sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: Calm
- Location: San Francisco, United States
- Total investments: 3
- Last investment: May 2024
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/madsjohnsen
- Website: http://www.madsjohnsen.com

Mads Johnsen is a seed investor at Calm in San Francisco focused on Software and Developer Tools. Mads Johnsen is Chief Product Officer at Calm. He attended DTU - Technical University of Denmark.

## Contacts

5 contacts available for Mads Johnsen: 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/mads-johnsen?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 3 | 100% |
| Developer Tools | 2 | 67% |
| B2B | 1 | 33% |
| Apps | 1 | 33% |
| SaaS | 1 | 33% |

10 industries tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 2 | 67% |
| Sweden | 1 | 33% |

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| QA.tech | QA.tech are building the first Autonomous QA Tester. We want to make engineers more productive by automating testing of applications. No more waiting for feedback from your QA team or stakeholders. Developers will get instant feedback on their work, ensuring less bugs, improved quality and faster time to market. | $3.3M | Seed | May 20, 2024 |  |
| Frigade | Frigade is a developer tool that makes it easy for developers to build better product onboarding and education. | $3M | Seed | Jul 21, 2023 |  |
| Simplified | Simplified is an all-in-one, AI-powered app to help teams and businesses with content creation and marketing. You can design, create videos, write copy and manage social media without switching tabs.With Simplified, you can streamline your content creation process and increase productivity by utilizing its AI-powered tools for creating engagingand high-quality content. This app offers a wide range of features, including a video editor, graphic design tools, and a social media scheduler.Moreover, Simplified provides you with ready-made templates that you can customize as per your requirements. These templates ensure your content is consistent and on-brand. | $8.5M | Seed | Nov 30, 2021 |  |

3 of 3 investments shown.

## Co-investors
- [Craft Ventures](https://shizune.co/investors/profile/craft-ventures) — VC Fund, 2 deals together
- [FirsthandVC](https://shizune.co/investors/profile/firsthandvc) — VC Fund, 2 deals together
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund, 2 deals together
- [8-Bit Capital](https://shizune.co/investors/profile/8-bit-capital) — VC Fund, 1 deal together
- [byFounders](https://shizune.co/investors/profile/byfounders) — VC Fund, 1 deal together
- [Curiosity VC](https://shizune.co/investors/profile/curiosity-vc) — VC Fund, 1 deal together

## About Calm

VC Fund · San Francisco, United States

Calm offers an application designed to help its users meditate and relax.The company is driven by a mission to make the world happier and healthier by developing a range of digital and physical products that enhance mental fitness and alleviate some of the most important mental health issues of the modern age including anxiety, depression,insomnia, and stress. Calm was named by Apple as the 2017 iPhone App of the Year and by Google Play as an Editors’ Choice in 2018.The company was founded in 2012 and is headquartered in San Francisco, California.

5 contacts available at Calm.

| Name | Title | Profile |
| --- | --- | --- |
| Collin Walter | Vice President | — |
| Mads Johnsen | Chief Product Officer | https://shizune.co/investors/profile/mads-johnsen |
| Brian Lee | Product | — |
| Christi-an Slomka | Community Manager | — |
| Dan Staley | Director Of Engineering | — |

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## FAQ

### What does Mads Johnsen invest in?

Mads Johnsen invests primarily in Software, Developer Tools and B2B startups, most often at Seed stage. Most of the 3 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Mads Johnsen?

Public channels for Mads Johnsen include LinkedIn and 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.

### When did Mads Johnsen last invest?

The most recent investment recorded for Mads Johnsen closed in May 2024. Shizune tracks 3 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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