All four H2020 projects (HYDROUSA, PAVITR, MULTISOURCE, NICE) center on natural or enhanced natural treatment systems for water management.
IRIDRA SRL
Italian engineering SME specializing in nature-based solutions for water treatment, urban water reuse, and climate-resilient water infrastructure.
Their core work
IRIDRA is a Florence-based environmental engineering SME specializing in nature-based solutions (NBS) for water and wastewater treatment. They design and implement constructed wetlands, natural treatment systems, and regenerative water management approaches for urban and Mediterranean contexts. Their work bridges engineering design with ecological principles to deliver sustainable alternatives to conventional grey infrastructure for water reuse, stormwater management, and river basin restoration.
What they specialise in
MULTISOURCE and NICE both focus on integrating NBS into urban water cycles, including stormwater, wastewater reuse, and circular water management.
MULTISOURCE and NICE explicitly address climate adaptation, resilience, and water scarcity challenges.
HYDROUSA targets Mediterranean water loops with regenerative business models; MULTISOURCE addresses circular economy approaches to water.
PAVITR focuses on validating sustainable natural and advanced technologies for water and wastewater treatment, suggesting a move toward hybrid engineered-natural systems.
How they've shifted over time
IRIDRA's early H2020 work (2018-2019) focused on closing water loops and high-resolution water management — essentially proving that natural treatment systems can work at scale in water-scarce regions. By 2021, their focus shifted decisively toward climate change adaptation, urban resilience, and NBS as a recognized infrastructure category, reflecting the broader EU policy push for green infrastructure. Their vocabulary evolved from technical water engineering terms to include circular economy, business model innovation, and landscape-scale restoration — signaling a move from pure engineering toward systemic urban water solutions.
IRIDRA is moving from component-level water treatment design toward integrated urban water cycle solutions that address climate resilience and circular economy goals — positioning them well for Horizon Europe missions on climate adaptation and smart cities.
How they like to work
IRIDRA participates exclusively as a partner, never as coordinator, which is typical for a specialist SME contributing deep technical know-how to larger consortia. With 80 unique partners across 21 countries from just 4 projects, they operate in large international consortia (averaging 20+ partners per project). This breadth suggests they are a trusted technical contributor that larger coordinators actively recruit for water/NBS expertise.
IRIDRA has built a remarkably wide network of 80 unique partners across 21 countries through only 4 projects, indicating they consistently join large, diverse consortia spanning Southern and Northern Europe, and extending to global partnerships (notably PAVITR's focus on sustainable technologies includes non-EU validation contexts).
What sets them apart
IRIDRA occupies a specific niche as a private engineering firm — not a university or research institute — with deep practical expertise in designing and deploying nature-based water treatment systems. This makes them a rare bridge between academic NBS research and real-world implementation, valuable for demonstration projects that need engineering credibility. Their consistent presence across the major EU NBS-for-water projects (HYDROUSA, MULTISOURCE, NICE) suggests they are recognized as a go-to partner in this space.
Highlights from their portfolio
- NICELargest funding share (EUR 246,625) and most recent project, focused on enhanced NBS for sustainable urban water cycles — represents IRIDRA's current strategic direction.
- HYDROUSADemonstration-scale project targeting Mediterranean water loops with regenerative business models, combining technical water treatment with commercial viability.
- MULTISOURCEAddresses modular integration of enhanced natural treatment into urban water cycles, combining circular economy with climate adaptation — the clearest expression of IRIDRA's evolving expertise.