Seru Capital is a multi-family office and private equity investor, partially investing its own capital alongside entrepreneurs in the Netherlands and the UK. We commit to each transaction on its own terms, without external pressure and or a fixed exit timeline.
Approach
Investment criteria
Investment themes
Demographic shifts are driving sustained demand for healthcare, assisted living, home care and age-friendly products and services, creating long-term, resilient growth opportunities across essential sectors.
Rising labor costs and talent shortages are accelerating the adoption of outsourced services and automation, enabling companies to focus on their core business and improve efficiency, scalability and margins through technology-driven solutions.
Regulatory pressure, consumer preferences and cost economics are pushing businesses toward sustainable models in energy efficiency, circular solutions and environmentally responsible products that combine impact with profitability.
Portfolio
Seru Capital's investment team also manages the private equity investments of Gryphion, the fund through which most of the current portfolio is held.
Since 2024 · HQ Netherlands
LeefEnergieBewust (LEB) helps households, companies and public organizations make their residential, commercial and public buildings more sustainable. LEB installs and maintains insulation, PV systems, batteries, air conditioners, heat pumps and EV chargers throughout the Netherlands, alongside energy certification and sustainability advisory services — operating under the labels Rouwenhorst Isolatie, Bestisol, Helder Zon, BeSolar and 12MNDN.
Since 2024 · HQ United Kingdom
Welbeck Health Partners (WHP) is a healthcare clinic focused on private ambulatory healthcare services, spanning 13 specialist groups and more than 300 healthcare consultants. Founded in 2016 by leading UK and US healthcare specialists, WHP opened its flagship center at One Welbeck Street, London, in 2019, and is currently adding centers in Oxford and Cambridge, both expected to open in 2026.
Since 2025 · HQ Netherlands
Brisker is a market-leading HR services provider focused on employer-of-record and agency-of-record services for the flexible labor market in the Netherlands and Belgium. Through its proprietary IT system, Brisker manages the administrative processes and risks of flexible labor for temporary employment firms, freelancers, SMEs and large corporates — processing more than 20,000 unique employee records annually under its brands Pay for People and Tentoo.
Since 2018 · HQ Italy
Marina Development Corporation (MDC) focuses on regenerating existing urban waterfronts in the Mediterranean into high-end lifestyle destinations for local and international demand. MDC is currently developing more than 200,000 m² of residential and commercial area across two key locations in Italy — Marina di Ventimiglia and Marina di Pisa — including high-end residences, hotels, restaurants, marinas and public venues and parks.
Since 2019 · HQ United Kingdom
Cinesite is one of the world's leading independent digital entertainment studios, producing award-winning visual effects and feature animation for movie and episodic content studios and broadcast and streaming media platforms. Cinesite is active globally, with offices in the UK, Canada, Germany and India.
2019–2026 · HQ Netherlands · Recent exit
Emsere is a one-stop shop for medical equipment rental and support services for clinical trials, helping customers reduce the total cost of ownership of medical equipment and handling all related logistics and support. Emsere is active globally, serving more than 10,000 medical trial sites in over 100 countries from offices in the Netherlands, the United States and Singapore. Emsere was acquired by Antin Infrastructure Partners in January 2026.
Team
Chief Investment Officer
William is Chief Investment Officer at Seru Capital and Gryphion, responsible for investment strategy. He was previously a Principal at Waterland Private Equity Investments for more than 13 years, involved in a range of portfolio companies and investment opportunities, and responsible for coordinating debt financing across the group. Before joining Waterland, William worked at Dutch investment bank NIBC.
He holds Masters degrees in Business Administration and European Law from the University of Groningen, an MPhil in Finance from Judge Business School, University of Cambridge, and is a CFA Charterholder.
william@serucapital.nl
Investment Manager
Alec van Eijk is an Investment Manager at Seru Capital and Gryphion, where he helps execute the investment strategy and supports their portfolio companies. Before joining Gryphion, Alec held M&A and corporate development roles at private equity-backed companies, including five years at GTS, a Waterland Private Equity portfolio company, and an earlier position at Sentia. At GTS, he led the group's M&A activities and executed internal value-creation initiatives.
Alec holds a Master's degree in Finance & Investments from Rotterdam School of Management and a Bachelor's degree in Economics from the University of Groningen. During his studies, he also completed an internship at Dutch investment bank NIBC.
alec@serucapital.nlContact
Confidential · No obligation
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