Entrepreneurs

HydroLoop — The Startup Making Smart Water Recycling a Reality

How a Dutch startup is transforming urban water management with sustainable technology

Leah Rosenfeld
April 25, 2026 · 2 min read
HydroLoop — The Startup Making Smart Water Recycling a Reality

HydroLoop – Smart Water for a Sustainable Future

Founded in 2016, HydroLoop is a Netherlands-based water-tech startup developing smart systems for recycling and reusing greywater in residential and commercial buildings. The company’s technology enables buildings to save water, reduce costs, and lower environmental impact by treating and reusing water from sinks, showers, and laundry.

HydroLoop’s mission is to make water sustainability easy and affordable, especially in urban environments where water scarcity is a growing concern.

Founding Story

HydroLoop was founded by Bram van der Veen and Mark Smit, engineers with expertise in environmental technology and urban infrastructure.

They observed that traditional water systems are inefficient, often wasting large amounts of greywater. Their vision was to create a compact, automated system that could recycle water safely and seamlessly, reducing environmental impact and utility costs.

Funding and Growth Milestones

HydroLoop has grown steadily, backed by strategic investments:

  • 2017: Seed funding of €1.5 million to finalize the first commercial prototype.
  • 2019: Series A funding of €5 million, enabling installation in apartment complexes and commercial buildings across the Netherlands.
  • 2021: Expanded to other European markets, including Germany and Belgium, with hundreds of buildings equipped.
  • 2023: Partnered with property developers to integrate HydroLoop systems in new smart building projects.

The company is now recognized as a leader in smart water recycling solutions for urban environments.

Business Model and Technology

HydroLoop combines engineering innovation and automation to provide a complete water recycling solution:

  • Greywater Recycling Systems: Reuses water from showers, sinks, and laundry for toilets, irrigation, and cleaning.
  • Smart Automation: Monitors water quality, usage, and system performance in real time.
  • B2B & B2C Model: Sells directly to property developers, building managers, and environmentally conscious homeowners.
  • Revenue Streams: Hardware sales, installation fees, and recurring service/maintenance subscriptions.

By integrating technology and sustainability, HydroLoop makes water efficiency practical and cost-effective.

Market Impact

HydroLoop is changing how buildings manage water:

  • Environmental Benefits: Reduces freshwater consumption and wastewater discharge.
  • Cost Savings: Lowers utility bills for residents and businesses.
  • Urban Sustainability: Supports smart city initiatives and green building certifications.
  • Innovation Leader: Demonstrates how technology can optimize resource use in everyday life.

HydroLoop shows how niche startups can create practical solutions for global environmental challenges.

Challenges and Controversies

HydroLoop faces challenges typical of environmental tech startups:

  • Regulatory Compliance: Navigating water quality and building regulations across countries.
  • Adoption Resistance: Convincing property developers and homeowners to invest in new technology.
  • Installation Complexity: Retrofitting existing buildings requires careful planning and costs.

The company addresses these challenges with strategic partnerships, compliance expertise, and scalable installation processes.

Future Outlook

HydroLoop continues to innovate and expand its impact:

  • Global Expansion: Targeting water-stressed regions beyond Europe.
  • Technology Enhancements: Improving efficiency, monitoring, and AI-driven predictive maintenance.
  • Partnerships: Collaborating with smart city developers and green building initiatives.
  • Sustainability Focus: Educating consumers and developers about water conservation benefits.

For entrepreneurs, HydroLoop highlights how clever engineering and automation can solve pressing environmental problems while creating viable business opportunities.

From a Dutch startup to a recognized smart water solution provider, HydroLoop is redefining urban water management. By offering automated greywater recycling systems, the company helps buildings save water, reduce costs, and protect the environment. Its story demonstrates the power of technology-driven sustainability startups to tackle real-world challenges.

Written by

Leah Rosenfeld

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