The National Technical University of Athens (NTUA) is one of Greece’s oldest higher education institutions and is widely recognized for its prestige in engineering and related disciplines. Established in 1837, it has grown into a top-ranked institution, offering nine academic programs, including eight in engineering and one in applied sciences.
NTUA is the coordinator of WATERWISE HUB with two research teams participating in the project:

• The Urban Water Management and Hydroinformatics Group, based in the School of Civil Engineering
• The UNESCO Chair Team, based in the School of Mechanical Engineering

The Urban Water Management and Hydroinformatics Group (UWMH) an active, innovative research team driving disruptive solutions for the urban water‑energy‑materials nexus. Backed by national and EU R&D programmes, it advances water‑sensitive urban design, sustainable drainage, grey‑water recycling, rainwater harvesting, sewer mining and managed aquifer recharge. UWMH pairs large‑scale demonstrations with high‑TRL software tools that optimise processes, pinpoint optimal sites and quantify system‑wide impacts. It is established in the School of Civil Engineering of NTUA.
The UNESCO Chair Team conducts research, offers training, and shares knowledge on green innovation and the circular economy. Its work centers on integrating these concepts into business planning to foster more sustainable economic development. It is established in the School of Mechanical Engineering of NTUA.

The Green Fund is a national funding institution, established in Greece in 2010. It constitutes a public-law entity supervised by the Ministry of Environment and Energy. The core mission of the Green Fund is to enhance development through environmental protection and to support the Greek environmental and climate policy by ensuring that it’s various financial resources (fines from environmental offences, special taxes and other types of resources) are efficiently allocated to funding programmes that aim to protect, enhance and restore the natural and urban environment.

SEV – Hellenic Federation of Enterprises, established in 1907, serves as the independent voice of Greek businesses. Representing over 700 leading corporations, SEV advocates for a productive, outward-focused, and competitive economy. As a key partner in the national and European social dialogue, SEV shapes policies that drive entrepreneurship and economic growth. The federation actively engages in public debates, providing informed analyses and recommendations on pressing economic issues. SEV also connects its members to political leaders, potential investors, and industry peers, fostering collaboration and innovation. With access to market data, trend analyses, and sector-specific events, SEV empowers its members to thrive.

The Hellenic Association of Municipal Water and Sewerage Utilities (E.D.E.Y.A.) was founded in 1989 and is a non-profitable and non-governmental organization. E.D.E.Y.A. is located in the city of Larissa and has 125 members (D.E.Y.A. – Municipal Water and Sewerage Companies) all over Greece. Its purpose is to coordinate the activities of its members and represent them. Furthermore, it assists its members to improve their services in the water supply and sewage sectors. E.D.E.Y.A. claims sustainable solutions from the State for the legal, institutional and financial problems of its members and transfers to its members information, experience and knowledge related to their activities.

SciCo (Science Communication) is a non-profit organisation, focusing on scientific engagement and empowerment, through innovative, interactive, and entertaining means. It was founded in 2008, and consists of scientists, academics, educators, artists, and people with an interest in everyday science. Through numerous high-impact outreach activities, such as science festivals, digital platforms, and workshops, SciCo has reached more than 400.000 people all over Greece. It has also reached audiences outside Greece by expanding some of its own projects internationally and by participating in EU Programs and Networks.

Mantis Beyond Innovation assists organizations succeed through the power of open innovation. Founded in 2017, the company is now the leader of Innovation & Entrepreneurship in Greece, a tech innovation firm for today & tomorrow and a community of bright minds and idea holders. Acting as innovation enablers, they partner with organizations that are ready to accelerate and solve the most demanding environmental, fintech, and societal challenges through product development, process optimization, talent & startup acquisition, and awareness initiatives. Being pioneers at heart, they have built the Innovation Management Software (SaaS) that delivers impact through data and analytics solutions and facilitates the evaluation and decision–making process of innovation proposals. Their expertise lies in the design of open innovation programs, corporate innovation hubs, and talent acquisition programs, and we are never bored to build new challenges for idea holders.

Tethys Consulting is a deep-tech SME working at the intersection of research and practice, transforming state-of-the-art R&D into actionable water infrastructure solutions. The company specializes in hydro-informatic technologies, including Digital Twins and Cyber-Physical Security Solutions for Water Systems, and maintains the WE MarketPlace to foster collaboration and innovation. Tethys Consulting bridges cutting-edge research with practical applications, helping stakeholders build data-driven, resilient water infrastructure solutions to address climate and urban challenges.