Sjoerd Rietberg

Active Investor

๐Ÿ“ Netherlands, Netherlands๐Ÿ”„ Updated September 2026๐Ÿ’ผ 11 investments๐Ÿ“… 7 years investing๐Ÿ—“ Last invested Jan 2022
Operator-angel๐ŸŒ Netherlands
11
Total investments
5
Early stage
3
Mid stage
0
Late stage
7y
Years active

Portfolio

8 investments ยท sorted by recency
All investments
Early stage
Mid stage
Late stage
Active investor
Jan 2022
Nectar structureert niet beursgenoteerde beleggingen voor vermogende individuen. Particulier vermogen verliest haar waarde door negatieve rente, inflatie en belastingen. Tegelijkertijd wordt de pensioensopbouw onzekerder door een nieuw pensioen akkoord en een vergrijzende samenleving. Hierdoor neemt de behoefte toe om zelfstandig zorg te dragen voor financiรซle zekerheid. Niet-beursgenoteerde beleggingen bieden een attractief rendement door een illiquiditeitspremie en zijn een uitstekende aanvulling op beursgenoteerde beleggingen (zoals aandelen). Nectar maakt niet-beursgenoteerde beleggingen op een eenvoudige en transparante manier beschikbaar voor vermogende individuen. Bovendien ondersteunt Nectar een duurzame financiรซle planning voor de lange termijn.
Active Investor & Advisor
Sep 2021
Blockchain and cryptocurrencies have revolutionized investment, technology and human interaction. They open up a huge set of opportunities and a brand new global market. At Agga, we believe in the power of digital assets and we create value for our investors through a selection of digital asset investment strategies.
Active Investor
Nov 2020
Hi, we are GNX, a provider of global internet and private connectivity on a mission: to simplify global networks, and everything in between. Because, like you, we got tired of the conservative, non-transparent ways of working in our industry. Instead, we made it straightforward: one single platform to access all the insights, expertise, and tools to source and manage your global WAN. And we called it GNX+. Direct quoting from thousands of local ISPs? Check. Click-to-order services? Check. Monitoring dashboards, service data, customer support? Check. Check Check. With GNX+, companies can access our portfolio of DIA, broadband, and mobile services in 190+ countries worldwide, evaluate competing vendors, get firm quotes, and order their connectivity services in just a few clicks. Whatโ€™s more, GNX+ enables you to manage your global WAN estate, monitor performance, raise tickets, and scale at the pace of your business. Itโ€™s all you wanted from a connectivity platform โ€“ and more. Needless to say, you are not alone in this journey. Next to our platform is our global team of connectivity experts, ensuring your services are up and runningโ€“wherever your business is, whenever you need themโ€“and the reason why hundreds of customers already trust us with their global WAN. Pretty straightforward, right? GNX. Straightforward Connectivity. www.gnx.net GNX Services: โ€ข Global Internet Access: Dedicated Internet Access (DIA), Business Broadband, Mobile, Satellite (LEO) โ€ข Private point-to-point: Ethernet, Wavelength โ€ข Cloud Fabric and cloud-interconnect services Business Solutions โ€ข ISP Aggregation โ€ข SD-WAN & SASE underlay โ€ข DC & Site underlay โ€ข Low-latency services โ€ข Partner/Wholesale connectivity services
Advisory Board member & Investor
Aug 2020
At smartQare, we are reshaping the future of healthcare with our innovative solutions for continuous patient monitoring. Our purpose is simple yet powerful: to empower doctors, nurses, and caregivers with real-time health insights, enabling them to focus on what truly mattersโ€”exceptional patient care. Our solutions, including viQtor and Healthdot, bridge the gap between patients and caregivers through connected care technologies. By combining cutting-edge innovation with compassionate care, we enable healthcare professionals to monitor patients effectivelyโ€”in hospitals and beyond. With a vision of creating a seamlessly connected, AI-driven healthcare ecosystem, we leverage smart technology and big data to deliver personalized, actionable insights. From improving patient outcomes to easing the burden on healthcare systems, weโ€™re driving a healthcare revolution that prioritizes prevention, precision, and accessibility. empowering Qare. anywhere. always.
Active Investor
Jun 2020
C-Facts puts business management in the driverโ€™s seat of ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—ฐ๐—ผ๐˜€๐˜, ๐˜‚๐˜€๐—ฎ๐—ด๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐—ฐ๐—ผ๐—บ๐—บ๐—ฒ๐—ฟ๐—ฐ๐—ฒ governance with the C Facts Control Center. ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—ฐ๐—ผ๐˜€๐˜ ๐—ฎ๐—น๐—น๐—ผ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป C-Facts enables you to get a transparent business view on your Cloud spending with easy percentage-based cloud cost allocation to departments, projects and applications. ๐—ฆ๐˜‚๐—ฝ๐—ฝ๐—ผ๐—ฟ๐˜๐—ถ๐—ป๐—ด ๐˜๐—ต๐—ฒ ๐—ฐ๐—น๐—ผ๐˜‚๐—ฑ ๐—ฒ๐—ฐ๐—ผ๐˜€๐˜†๐˜€๐˜๐—ฒ๐—บ C-Facts supports the complete cloud ecosystem from Reseller to Managed Service providers to Enterprise customers. ๐’๐ข๐ง๐ ๐ฅ๐ž ๐ฉ๐š๐ง๐ž ๐จ๐Ÿ ๐ ๐ฅ๐š๐ฌ๐ฌ ๐จ๐Ÿ ๐š๐ฅ๐ฅ ๐œ๐ฅ๐จ๐ฎ๐ ๐๐š๐ญ๐š To create a single pane of glass of usage, cost and commerce insights, we connect to all your data sources (Public Cloud, Private and on-premises). ๐—š๐—ฒ๐˜ ๐˜๐—ต๐—ฒ ๐—บ๐—ผ๐˜€๐˜ ๐—ผ๐˜‚๐˜ ๐—ผ๐—ณ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฑ๐—ฎ๐˜๐—ฎ C-Facts enables you to share data and insights in โ€œC-Viewsโ€ with all internal and external stakeholders. You control what you share, with whom and howโ€”providing employees and customers with a single interactive data view. ๐—˜๐—ฎ๐˜€๐—ฒ ๐—ผ๐—ณ ๐˜‚๐˜€๐—ฒ C-Facts is developed with one thing in mind: convenience. Convenience to configure and view your cloud usage, cost and commerce data. What you see is what you get and makes sense. The number one feedback we get after a quick demo is: - ๐—œ๐˜ ๐—น๐—ผ๐—ผ๐—ธ๐˜€ ๐—ด๐—ฟ๐—ฒ๐—ฎ๐˜ ๐—ฎ๐—ป๐—ฑ ๐—ฒ๐—ฎ๐˜€๐˜† ๐˜๐—ผ ๐˜‚๐˜€๐—ฒ: ๐—ฒ๐˜ƒ๐—ฒ๐—ป ๐—œ ๐—ด๐—ฒ๐˜ ๐˜๐—ต๐—ถ๐˜€ ๐Ÿ˜Š Are you ready to take control of your cloud usage, cost and commerce than C-Facts is ready to give you the Insights you need.
Active Investor
Aug 2019
Infrastructure tech for web3 (Solana & Sui) uniquely powering both GameFi & DeFi seamlessly
Active Investor
Jul 2019
InQommon - Meet people who empower you Your place to engage with peers through curated communities.
Active investor
Jul 2019
At Idris Oncology, we are developing novel tools to aid clinicians in the diagnosis, treatment selection and monitoring of life-threatening diseases. Precision medicine has transformed cancer care. Therapies are now selected to specifically target molecular markers present within a patient's tumor. However, if you cannot see the target, how do you know what to aim for? Standard biopsies can give doctors this information, yet for too long they have been unreliable and often dangerous. Idris Oncology is committed to providing clinicians with the best tools to sample a patient's tumor cells and tumor cell products. Only with the best information can patients receive the best care. Find out more about our technology, visit www.idrisoncology.com
Experience ยท 12 entries
All (12)
Investments (11)
Founder (1)
Board (1)
2022
Active investor
Jan 2022
Nectar structureert niet beursgenoteerde beleggingen voor vermogende individuen. Particulier vermogen verliest haar waarde door negatieve rente, inflatie en belastingen. Tegelijkertijd wordt de pensioensopbouw onzekerder door een nieuw pensioen akkoord en een vergrijzende samenleving. Hierdoor neemt de behoefte toe om zelfstandig zorg te dragen voor financiรซle zekerheid. Niet-beursgenoteerde beleggingen bieden een attractief rendement door een illiquiditeitspremie en zijn een uitstekende aanvulling op beursgenoteerde beleggingen (zoals aandelen). Nectar maakt niet-beursgenoteerde beleggingen op een eenvoudige en transparante manier beschikbaar voor vermogende individuen. Bovendien ondersteunt Nectar een duurzame financiรซle planning voor de lange termijn.
2021
Active Investor & Advisor
Sep 2021
Blockchain and cryptocurrencies have revolutionized investment, technology and human interaction. They open up a huge set of opportunities and a brand new global market. At Agga, we believe in the power of digital assets and we create value for our investors through a selection of digital asset investment strategies.
2020
Active Investor
Nov 2020
Hi, we are GNX, a provider of global internet and private connectivity on a mission: to simplify global networks, and everything in between. Because, like you, we got tired of the conservative, non-transparent ways of working in our industry. Instead, we made it straightforward: one single platform to access all the insights, expertise, and tools to source and manage your global WAN. And we called it GNX+. Direct quoting from thousands of local ISPs? Check. Click-to-order services? Check. Monitoring dashboards, service data, customer support? Check. Check Check. With GNX+, companies can access our portfolio of DIA, broadband, and mobile services in 190+ countries worldwide, evaluate competing vendors, get firm quotes, and order their connectivity services in just a few clicks. Whatโ€™s more, GNX+ enables you to manage your global WAN estate, monitor performance, raise tickets, and scale at the pace of your business. Itโ€™s all you wanted from a connectivity platform โ€“ and more. Needless to say, you are not alone in this journey. Next to our platform is our global team of connectivity experts, ensuring your services are up and runningโ€“wherever your business is, whenever you need themโ€“and the reason why hundreds of customers already trust us with their global WAN. Pretty straightforward, right? GNX. Straightforward Connectivity. www.gnx.net GNX Services: โ€ข Global Internet Access: Dedicated Internet Access (DIA), Business Broadband, Mobile, Satellite (LEO) โ€ข Private point-to-point: Ethernet, Wavelength โ€ข Cloud Fabric and cloud-interconnect services Business Solutions โ€ข ISP Aggregation โ€ข SD-WAN & SASE underlay โ€ข DC & Site underlay โ€ข Low-latency services โ€ข Partner/Wholesale connectivity services
Advisory Board member & Investor
Aug 2020
At smartQare, we are reshaping the future of healthcare with our innovative solutions for continuous patient monitoring. Our purpose is simple yet powerful: to empower doctors, nurses, and caregivers with real-time health insights, enabling them to focus on what truly mattersโ€”exceptional patient care. Our solutions, including viQtor and Healthdot, bridge the gap between patients and caregivers through connected care technologies. By combining cutting-edge innovation with compassionate care, we enable healthcare professionals to monitor patients effectivelyโ€”in hospitals and beyond. With a vision of creating a seamlessly connected, AI-driven healthcare ecosystem, we leverage smart technology and big data to deliver personalized, actionable insights. From improving patient outcomes to easing the burden on healthcare systems, weโ€™re driving a healthcare revolution that prioritizes prevention, precision, and accessibility. empowering Qare. anywhere. always.
Active Investor
Jun 2020
C-Facts puts business management in the driverโ€™s seat of ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—ฐ๐—ผ๐˜€๐˜, ๐˜‚๐˜€๐—ฎ๐—ด๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐—ฐ๐—ผ๐—บ๐—บ๐—ฒ๐—ฟ๐—ฐ๐—ฒ governance with the C Facts Control Center. ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—ฐ๐—ผ๐˜€๐˜ ๐—ฎ๐—น๐—น๐—ผ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป C-Facts enables you to get a transparent business view on your Cloud spending with easy percentage-based cloud cost allocation to departments, projects and applications. ๐—ฆ๐˜‚๐—ฝ๐—ฝ๐—ผ๐—ฟ๐˜๐—ถ๐—ป๐—ด ๐˜๐—ต๐—ฒ ๐—ฐ๐—น๐—ผ๐˜‚๐—ฑ ๐—ฒ๐—ฐ๐—ผ๐˜€๐˜†๐˜€๐˜๐—ฒ๐—บ C-Facts supports the complete cloud ecosystem from Reseller to Managed Service providers to Enterprise customers. ๐’๐ข๐ง๐ ๐ฅ๐ž ๐ฉ๐š๐ง๐ž ๐จ๐Ÿ ๐ ๐ฅ๐š๐ฌ๐ฌ ๐จ๐Ÿ ๐š๐ฅ๐ฅ ๐œ๐ฅ๐จ๐ฎ๐ ๐๐š๐ญ๐š To create a single pane of glass of usage, cost and commerce insights, we connect to all your data sources (Public Cloud, Private and on-premises). ๐—š๐—ฒ๐˜ ๐˜๐—ต๐—ฒ ๐—บ๐—ผ๐˜€๐˜ ๐—ผ๐˜‚๐˜ ๐—ผ๐—ณ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฑ๐—ฎ๐˜๐—ฎ C-Facts enables you to share data and insights in โ€œC-Viewsโ€ with all internal and external stakeholders. You control what you share, with whom and howโ€”providing employees and customers with a single interactive data view. ๐—˜๐—ฎ๐˜€๐—ฒ ๐—ผ๐—ณ ๐˜‚๐˜€๐—ฒ C-Facts is developed with one thing in mind: convenience. Convenience to configure and view your cloud usage, cost and commerce data. What you see is what you get and makes sense. The number one feedback we get after a quick demo is: - ๐—œ๐˜ ๐—น๐—ผ๐—ผ๐—ธ๐˜€ ๐—ด๐—ฟ๐—ฒ๐—ฎ๐˜ ๐—ฎ๐—ป๐—ฑ ๐—ฒ๐—ฎ๐˜€๐˜† ๐˜๐—ผ ๐˜‚๐˜€๐—ฒ: ๐—ฒ๐˜ƒ๐—ฒ๐—ป ๐—œ ๐—ด๐—ฒ๐˜ ๐˜๐—ต๐—ถ๐˜€ ๐Ÿ˜Š Are you ready to take control of your cloud usage, cost and commerce than C-Facts is ready to give you the Insights you need.
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Investment activity
2019โ€“2022 ยท 11 investments
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