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De Groot Family Office

Slijterstraat 32, Amsterdam, Noord-Holland, 1019, The Netherlands

Overview

The De Groot Family Office (‘DGFO’) was founded by Drs. J.A.G. (Han) de Groot. They directly invest in businesses in the fields of media, technology, insurance, and life sciences.

Total investments
2
Lead investments
0
Investments · 12mo
0
Active investors
1

Sector focus

  • Venture Capital
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Investment portfolio

  • Combinder

    Participated · Seed · Mar 2025

    Combinder is a community-driven DePIN that transforms everyday electrical devices into active participants in the energy market by connecting rooftop solar, HVAC systems, EV chargers, and other devices. Its user-friendly app and $BIND token let participants earn rewards for sharing energy use data and adjusting consumption to help offset high-demand periods. Energy service providers can access a standardized API to streamline demand response, build virtual power plants, and enable peer-to-peer energy trading. The project is building on peaq, the layer-1 for the Machine Economy, and its open beta has enlisted 3,000 participants alongside nine B2B partnerships across smart hardware, virtual power plants, and carbon finance. Combinder closed a $500,000 Pre-Seed round at a $10 million valuation. With the new capital the company plans to accelerate development and expand its network by enhancing the Combinder API to support more device manufacturers and energy asset types.

  • Sirius Medical

    Participated · Equity · Feb 2025

    Sirius Medical develops the Sirius Pintuition surgical navigation platform and GPSDetect software to enable wire‑free localization for breast‑conserving surgery. The Pintuition system is CE marked and FDA cleared and has been praised by breast cancer surgeons. The company traces its roots to the Netherlands Cancer Institute and reports adoption in over 250 centers and 35,000 procedures globally. Sirius Medical is focused on improving usability and extending applications of its platform. The company announced it secured €10M in additional scale‑up funding to support product development and global expansion. The investment will also be used to bolster sales infrastructure and enter new markets. Sirius Medical develops Pintuition, a surgical marker navigation system that gives surgeons real-time distance and directional guidance to locate tumors. The company is led by CEO Bram Schermers and is focused on improving care for cancer patients by enabling precise and efficient tumor removal. Pintuition is active in over 100 centers with more than 5,000 procedures across Western Europe and the US. Sirius experienced revenue growth in 2022 and has built an international sales network in Europe and the USA. The company plans to use new funding to accelerate worldwide growth of Pintuition, support further product development, and expand commercial roll-out. Sirius Medical has commercially launched the Sirius Pintuition System, a localisation platform designed to help surgeons pinpoint breast tumours during surgery. The system is CE marked and Sirius is pursuing FDA clearance. The Pintuition seed can be placed up to 180 days before surgery and the intraoperative probe gives real-time feedback and directional guidance to marked tissue. Sirius positions Pintuition as an easy-to-use, affordable alternative to metal anchor wires and radioactive seeds, aiming to improve hospital workflow and surgical accuracy. The company is developing a pipeline of complementary products and indications alongside the commercial rollout. Management says recent funding will be used to execute growth plans and advance the product pipeline.

Team