# Joost de Valk

> Joost de Valk is a seed investor at Emilia Capital backing SaaS and GPS. See 5 investments, check sizes, portfolio and contact details. Updated Oct 2026.

- Type: Angel Investor
- Fund: [Emilia Capital](https://shizune.co/investors/profile/emilia-capital)
- Location: Wijchen, The Netherlands
- Total investments: 5
- Last investment: May 2023
- Lead investor: 60%
- Last updated: Oct 2026
- LinkedIn: http://www.linkedin.com/in/jdevalk
- X (Twitter): http://twitter.com/jdevalk
- Website: https://yoast.com/about-us/team/joost-de-valk/
- Facebook: http://www.facebook.com/jdevalk

Joost de Valk is a seed investor at Emilia Capital in Wijchen focused on SaaS and GPS. Joost de Valk is the founder and Chief Product Officer of Yoast. He's a an internet entrepreneur, who next to founding Yoast has invested in and advised several startups. His main expertise is open source software development and digital marketing.

## Contacts

5 contacts available for Joost de Valk: 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/joost-de-valk?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| SaaS | 2 | 40% |
| GPS | 1 | 20% |
| Apps | 1 | 20% |
| Mobile | 1 | 20% |
| Software | 1 | 20% |

18 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 4 | 80% |
| Pre-Seed | 1 | 20% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| The Netherlands | 2 | 40% |
| United States | 1 | 20% |
| United Kingdom | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| WPCS.io | We provide cloud scale to Website as a Service (WaaS) companies and agencies by eliminating scaling, automation, and development issues of WordPress. |  | Seed | May 11, 2023 | https://wpcs.io/ |
| Atarim | Atarim is a visual collaboration platform designed to facilitate the management of web-focused communications. The company's innovative tool allows designers to annotate and provide feedback directly on websites and designs, enhancing teamwork and reducing time-consuming back-and-forth communication. Trusted by both smaller creative teamsand large enterprises, Atarim is designed to improve design collaboration, quality assurance, content reviews, and bug tracking. Join us in transforming the world of design collaboration with Atarim. | $700K | Pre-Seed | Sep 06, 2022 | https://atarim.io |
| Peerby | A neighborhood network for sharing consumer goods. Borrow power tools, electronics, party equipment, and much more from your neighbors. | $2.5M | Seed | May 31, 2022 | https://www.peerby.com |
| Wordproof | WordProof is a documentation firm that offers services for content creation, publishing, content structuring, and copyright protection. |  | Seed | Aug 31, 2020 | https://wordproof.io/ |
| Mapfit | Mapfit provides mapping services to companies. Mapfit powers the new standard of user experiences and defines a new level of map data accuracy. Founded in 2015, the company is headquartered in New York, New York. | $5.5M | Seed | Jun 12, 2018 | https://www.mapfit.com |

5 of 5 investments shown.

## Co-investors
- [Angels](https://shizune.co/investors/profile/angels-113f) — VC Fund, 1 deal together
- [NAP](https://shizune.co/investors/profile/cavalry-ventures) — VC Fund, 1 deal together
- [Emilia Capital](https://shizune.co/investors/profile/emilia-capital) — VC Fund, 1 deal together
- [Loyal VC](https://shizune.co/investors/profile/loyal-vc) — VC Fund, 1 deal together
- [NAP](https://shizune.co/investors/profile/nap-vc) — VC Fund, 1 deal together
- [Rockstart](https://shizune.co/investors/profile/rockstart-accelerator) — VC Fund, 1 deal together

## About Emilia Capital

VC Fund

We have investments in open source, sustainable and female-led companies.

2 contacts available at Emilia Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Joost de Valk | Partner | https://shizune.co/investors/profile/joost-de-valk |
| Marieke van de Rakt | Partner | https://shizune.co/investors/profile/marieke-van-de-rakt |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund

## FAQ

### What does Joost de Valk invest in?

Joost de Valk invests primarily in SaaS, GPS and Apps startups, most often at Seed and Pre-Seed stage. Most of the 5 investments tracked by Shizune back companies in The Netherlands. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Joost de Valk?

Public channels for Joost de Valk include LinkedIn, X (Twitter) 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 Joost de Valk last invest?

The most recent investment recorded for Joost de Valk closed in May 2023. Shizune tracks 5 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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