# Stijn Christiaens

> Stijn Christiaens is a seed investor in New York backing Software and Big Data. See 10 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Location: New York, United States
- Total investments: 10
- Last investment: Jan 2026
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/stijnchristiaens/
- X (Twitter): https://twitter.com/stichris
- Website: https://x.com/stichris

Stijn Christiaens is a seed investor in New York focused on Software and Big Data. Stijn Christiaens is based out of Brussels, Brussels Hoofdstedelijk Gewest and is the Founder and Chief Data Citizen of Collibra. Stijn previously worked at Vrije Universiteit Brussel as a Researcher. Stijn Christiaens attended the KU Leuven. Stijn Christiaens has been certified in Data Monetization Strategy: Creating Value Through Data.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $3M–$6.5M |
| Pre-Seed | $1.1M–$3M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 4 | 40% |
| Big Data | 2 | 20% |
| Data Integration | 2 | 20% |
| Information Technology | 2 | 20% |
| Artificial Intelligence | 2 | 20% |

21 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 4 | 40% |
| Pre-Seed | 4 | 40% |
| Series A | 1 | 10% |
| Funding Round | 1 | 10% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Belgium | 3 | 30% |
| The Netherlands | 2 | 20% |
| Spain | 1 | 10% |
| France | 1 | 10% |
| Denmark | 1 | 10% |

6 countries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Sensity AI | The Visual Threat Intelligence Platform. Deep learning for monitoring and detecting #deepfakes. | $2.1M |  | Jan 15, 2026 |  |
| Dalton | Self-improving websites | $1.2M | Pre-Seed | Sep 05, 2025 |  |
| Otamiser | Otamiser Booster® is an automated solution that helps hoteliers and revenue managers secure bookings by improving a property's online presence on major OTAs such as Booking.com, Expedia, Trips.com, Kayak, Airbnb, and VRBO. It maximizes occupancy rates and revenue through optimizing 951 essential parameters, ensuring continuous optimization,full automation, seamless integration with CMS, PMS, and RMS systems, dedicated customer support, integrations with Cubilis and Hostaway, and a customized API for Revenue Management software. | $3M | Seed | Jun 25, 2024 |  |
| Kestra Technologies | Kestra is an infinitely scalable orchestration and scheduling platform, creating, running, scheduling, and monitoring millions of complex pipelines. | $3M | Seed | Oct 05, 2023 |  |
| Kestra Technologies | Kestra is an infinitely scalable orchestration and scheduling platform, creating, running, scheduling, and monitoring millions of complex pipelines. | $3M | Pre-Seed | Oct 04, 2023 |  |
| Opna | Opna is a financing platform for climate projects that remove carbon and protect natural ecosystems. Opna offers data, proprietary risk assessments, and efficient capital structures, helping companies to translate net-zero committed capital from financial institutions, and corporates into direct financing across a project's lifecycle. | $6.5M | Seed | Sep 05, 2023 |  |
| Rita Data | Rita is a zero-party data platform that connects consumers and brands to enable trusted and engaging data transactions. The mobile app allows users to view, control, and share their data for rewards. | $1.1M | Pre-Seed | Apr 26, 2022 |  |
| Tinybird | Tinybird helps developers and data teams build data products over analytical data, at any scale. The platform is helping businesses realize the full potential of their data at any scale by turning it into real-time insights, actions, and business value. ​​Developers can build data products that make use of our low-latency, high-concurrency APIs -in minutes, not weeks, using the tools they already know: SQL and APIs.The Tinybird platform is used by start-ups through global enterprises including Vercel, The Hotel Network, and Keyrock. | $3M | Seed | Jul 05, 2021 |  |
| CluedIn | CluedIn is tied to all the software used in an organization, and finds information across these sources in all departments. | $15M | Series A | Apr 22, 2021 |  |
| NannyML | NannyML is an early stage venture funded start-up. Our product bridges the gap between business and AI in production, monitoring decisions made by ML systems, and ensuring they are stable and reliable, while extracting and communicating insights to business stakeholders. We work to become the product for monitoring AI in production.At NannyMLwe build enterprise software for detecting and correcting ML systems in production. That includes detecting data and concept drift, estimating performance loss and suggesting corrective actions as well as a dashboard that presents all these insights for business and technical users. Our goal is to ensure that ML systems keep adding value and that insights that can be extracted from ML systems are clearly communicated to business stakeholders. We want to make ML in production effortless to interact with and extract value from. | $1.2M | Pre-Seed | Oct 30, 2020 |  |

10 of 10 investments shown.

## Co-investors
- [Pitchdrive](https://shizune.co/investors/profile/pitchdrive) — VC Fund, 4 deals together
- [Axeleo Capital](https://shizune.co/investors/profile/axeleo-sas) — VC Fund, 2 deals together
- [Betaworks](https://shizune.co/investors/profile/betaworks) — VC Fund, 2 deals together
- [Auriga Cyber Ventures](https://shizune.co/investors/profile/cyberimpact-ventures) — VC Fund, 2 deals together
- [Isai](https://shizune.co/investors/profile/isai) — VC Fund, 2 deals together
- [Angel Invest](https://shizune.co/investors/profile/angel-invest-ventures) — VC Fund, 1 deal together

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## FAQ

### What does Stijn Christiaens invest in?

Stijn Christiaens invests primarily in Software, Big Data and Data Integration startups, most often at Seed and Pre-Seed stage. Most of the 10 investments tracked by Shizune back companies in Belgium. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Stijn Christiaens's check size?

Stijn Christiaens typically joins rounds of $3M–$6.5M at Seed and $1.1M–$3M 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 Stijn Christiaens participates in.

### When did Stijn Christiaens last invest?

The most recent investment recorded for Stijn Christiaens closed in Jan 2026. Shizune tracks 10 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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