From the heart of Paris, Calao Finance has emerged as a pivotal force in water technology investment, particularly through its strategic focus on digital infrastructure and smart monitoring solutions. With an average ticket size of €6 million and a laser focus on growth-stage companies, this French investment firm has carved out a unique position in Europe’s water tech landscape. Their portfolio, anchored by innovative companies like Acwa Robotics, demonstrates a clear vision: leveraging cutting-edge technology to solve critical water infrastructure challenges while generating substantial returns for investors.
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Investor Name: Calao Finance
Investor Type: VC
Latest Fund Size: $60 Million
Dry Powder Available: Yes
Typical Ticket Size: $3M – $10M
Investment Themes: digital monitoring and smart infrastructure, leak detection and preventative maintenance, water resource preservation and efficiency
Investment History: $1600000 spent over 2 deals
Often Invests Along: Région Sud Investissement
Already Invested In: ACWA Robotics, Acwa Robotics
Leads or Follows: Lead
Board Seat Appetite: High
Key People: Pierre-Emmanuel Pochon, Alexandre Coquoin, Julien Deville, Mathieu Sirtaine
The Investment Strategy: Growth Focus with Digital Innovation

Calao Finance has carved out a distinct niche in the water technology investment landscape through a carefully calibrated strategy that combines growth-stage focus with digital innovation imperatives. At the core of their approach lies a €6M average ticket size – a sweet spot that enables meaningful ownership while maintaining portfolio diversification.
The firm’s investment thesis centers on Series A and B funding rounds, where companies have typically validated their technology and business model but require capital and strategic guidance to scale. This positioning allows Calao to mitigate early-stage risks while capturing significant upside potential as portfolio companies expand their market presence.
What truly distinguishes Calao’s strategy is their emphasis on digitally-enabled water solutions. They specifically target companies leveraging technologies like artificial intelligence, IoT sensors, and advanced analytics to solve water infrastructure challenges. This digital-first approach aligns with the broader transformation of the water sector, where data-driven solutions are increasingly critical for optimizing operations and resource management.
The firm maintains strict investment criteria beyond just digital capabilities. Portfolio companies must demonstrate clear competitive advantages, strong intellectual property protection, and the potential for international expansion. The focus on digitization extends to operational metrics – Calao expects portfolio companies to leverage data analytics for performance optimization and customer engagement.
While maintaining a technology-forward approach, Calao balances innovation with practicality. Their strategy echoes principles outlined in how to take mid-market green tech companies to the next level, emphasizing solutions that can be deployed at scale while delivering measurable environmental and economic benefits.
The firm’s portfolio construction reflects this balanced approach. While they maintain exposure across the water technology spectrum, investments cluster around key themes like smart metering, predictive maintenance, and water quality monitoring – areas where digital capabilities can drive step-change improvements in infrastructure efficiency.
This focused strategy has enabled Calao to build deep sector expertise and create value beyond capital deployment. Their team actively supports portfolio companies in areas like commercial development, operational improvement, and strategic partnerships, leveraging their extensive network in the European water sector.
Geographic Footprint: French Roots, European Ambitions

Calao Finance’s investment strategy reflects a deeply rooted connection to the French water technology ecosystem while maintaining a calculated approach toward European expansion. The firm’s portfolio composition—with 23 out of 24 investments concentrated in French companies—demonstrates both the strength of France’s water innovation landscape and Calao’s intimate understanding of their home market.
This geographic focus stems from France’s position as a historical powerhouse in water infrastructure and technology. The country hosts several world-leading water companies and boasts a robust network of research institutions and engineering schools specializing in water technologies. This environment has created a fertile ground for innovative water startups, providing Calao with a rich pipeline of investment opportunities.
However, Calao’s concentrated French portfolio shouldn’t be mistaken for geographic myopia. Their single non-French investment signals a deliberate strategy to test waters beyond national borders. The firm actively monitors opportunities across Europe, particularly in regions with strong water technology clusters such as the Netherlands, Denmark, and Germany. This measured approach to geographic expansion allows Calao to maintain their operational efficiency while building expertise in new markets.
The firm’s European ambitions are further evidenced by their portfolio companies’ international growth trajectories. Many of their French investments already generate significant revenues from European markets, effectively creating a de-risked pathway for Calao’s broader European expansion. This approach aligns with their investment thesis of backing companies with proven technologies and clear paths to scale.
Calao’s geographic strategy also reflects broader trends in European water infrastructure investment. As water utilities face mounting pressure to modernize their infrastructure, the demand for innovative water technologies is growing across the continent. The firm’s strong French foundation positions them well to capitalize on this pan-European opportunity while maintaining their operational excellence.
Looking ahead, Calao appears poised to gradually increase their European presence while maintaining their strong French core. This expansion strategy balances the benefits of deep local market knowledge with the growth potential of the broader European water technology sector. Their approach suggests a long-term vision of becoming a pan-European water technology investor, built on the foundation of their French expertise.
Portfolio Deep Dive: The Acwa Robotics Case Study

Calao Finance’s investment in Acwa Robotics exemplifies the firm’s strategic focus on transformative water infrastructure technologies. The Marseille-based robotics company has developed an innovative solution for mapping and assessing aging water distribution networks—a critical challenge facing utilities worldwide.
The core technology leverages autonomous robots equipped with advanced sensors and artificial intelligence to navigate through operational water pipes. These robots collect comprehensive data about pipe conditions, material degradation, and potential failure points without requiring network shutdowns or service interruptions. This non-invasive approach represents a significant advance over traditional assessment methods that often require excavation or service disruption.
For Calao Finance, Acwa Robotics aligns perfectly with their investment thesis around water infrastructure optimization. The technology addresses multiple critical pain points: reducing water losses through early leak detection, optimizing maintenance scheduling through predictive analytics, and extending infrastructure lifespan through targeted interventions. Perhaps most importantly, their solution helps utilities save both water and money.
The investment case was strengthened by Acwa’s proven track record with major French utilities and growing international interest. Their robots have successfully mapped hundreds of kilometers of pipelines, generating detailed 3D models and condition assessments that enable utilities to make data-driven decisions about infrastructure investments.
Beyond the immediate benefits of leak detection and asset management, Acwa’s technology provides valuable data for long-term infrastructure planning. The detailed mapping and materials analysis help utilities understand degradation patterns and optimize their replacement strategies. This systematic approach to infrastructure management represents a shift from reactive maintenance to proactive asset optimization.
The success of this investment also validates Calao’s thesis about the increasing importance of digital solutions in water infrastructure. By combining robotics, sensors, and AI-powered analytics, Acwa Robotics demonstrates how technology can address fundamental challenges in water distribution while generating actionable insights for utility operators.
As water infrastructure continues to age globally, solutions like Acwa’s become increasingly crucial for maintaining service reliability and reducing water losses. This investment positions Calao at the forefront of the digital transformation in water infrastructure management, while delivering tangible environmental and economic benefits to utilities and their customers.
Future Horizons: Water Tech Investment Opportunities

The water technology investment landscape continues to evolve rapidly, presenting compelling opportunities in emerging solution areas. For forward-thinking investors like Calao Finance, three key sectors stand out as particularly promising frontiers: PFAS treatment, digital twin implementations, and decentralized water systems.
The PFAS challenge represents both an urgent environmental necessity and a significant market opportunity. These ‘forever chemicals’ have created a multi-billion dollar remediation challenge that traditional treatment methods struggle to address effectively. Advanced destructive technologies leveraging electrochemical processes and novel catalysts are emerging as viable solutions, offering superior treatment without generating hazardous waste streams. The regulatory momentum around PFAS creates an attractive investment thesis, particularly for technologies that can achieve complete destruction rather than mere separation.
Digital twin technology represents another transformative opportunity in water infrastructure management. By creating virtual replicas of physical water networks, utilities can optimize operations, predict maintenance needs, and improve resource allocation. The real value lies in combining IoT sensor data with machine learning to enable predictive capabilities. Early implementations have demonstrated potential cost savings of 20-30% in operational expenses while significantly improving system reliability.
Perhaps most intriguingly, decentralized water treatment solutions are gaining traction as alternatives to traditional centralized infrastructure. These systems, ranging from building-scale water recycling to district-level treatment facilities, offer compelling advantages in urban and developing regions alike. The modular nature of these solutions allows for incremental deployment, reducing capital risk while enabling rapid scaling as demand grows.
What makes these opportunities particularly attractive is their alignment with broader sustainability imperatives and regulatory trends. As water scarcity intensifies and quality standards become more stringent, technologies that can address these challenges while delivering measurable economic benefits will command premium valuations. Investors who can identify and nurture innovations in these spaces stand to generate both significant returns and meaningful environmental impact.
The key to success lies in identifying technologies that combine proven technical efficacy with clear paths to commercial scale. Partners who can provide not just capital but also strategic guidance and industry connections will be particularly well-positioned to help promising solutions bridge the critical gap between innovation and widespread adoption.
The Investment Philosophy

At the heart of Calao Finance’s approach lies a sophisticated investment thesis that seamlessly blends financial returns with environmental impact in the water technology sector. The Paris-based firm has developed a distinctive framework for evaluating potential investments, prioritizing solutions that address critical challenges in water infrastructure while demonstrating clear paths to scalability and profitability.
Calao’s investment criteria centers on three fundamental pillars: technological innovation, market potential, and sustainability impact. The firm specifically seeks ventures developing breakthrough technologies in water treatment, infrastructure monitoring, and resource recovery. However, mere technical excellence isn’t sufficient – Calao demands solutions that can demonstrate measurable improvements in efficiency, cost reduction, or environmental protection.
What sets Calao’s philosophy apart is their emphasis on what they term “strategic sustainability” – the notion that environmental benefits must align with robust business models. They evaluate potential investments through a dual lens that examines both immediate market opportunity and long-term environmental impact. This approach has proven particularly effective in identifying water technology companies that can scale globally while delivering meaningful contributions to water conservation and quality improvement.
The firm’s due diligence process reflects this balanced perspective. Beyond traditional financial metrics, Calao’s team conducts thorough assessments of a technology’s potential environmental impact, measuring factors such as water savings, energy efficiency, and pollution reduction. Learn more about how impact investing can save the water world.
Risk management forms another crucial component of Calao’s investment philosophy. The firm maintains a disciplined approach to capital deployment, typically investing in companies that have already demonstrated proof of concept but require growth capital to scale. This strategy helps mitigate technology risk while maximizing the potential for both financial returns and environmental impact.
Calao’s investment philosophy also emphasizes active partnership with portfolio companies. Beyond capital injection, the firm provides strategic guidance, industry connections, and operational expertise to accelerate growth. This hands-on approach helps portfolio companies navigate the complex regulatory landscape of water infrastructure while maintaining focus on both commercial success and environmental stewardship.
Portfolio Innovation Spotlight

Calao Finance’s portfolio showcases groundbreaking water technology companies that are revolutionizing infrastructure while delivering measurable environmental and financial returns. The firm’s strategic investments target solutions addressing critical challenges across the water value chain.
One standout portfolio company has pioneered an advanced membrane technology that reduces energy consumption in wastewater treatment by 40% compared to conventional systems. By incorporating nanomaterials and optimized surface chemistry, their solution enables more efficient filtration while minimizing membrane fouling. Early deployments demonstrate both improved water quality and significant operational cost savings for municipal utilities.
Another innovative venture in Calao’s portfolio has developed a breakthrough water quality monitoring platform leveraging artificial intelligence and advanced sensors. Their technology enables real-time detection of contaminants at parts-per-trillion levels, allowing water operators to respond rapidly to quality issues before they impact public health. Implementation across several European utilities has reduced monitoring costs by 60% while enhancing regulatory compliance.
Calao has also backed a company commercializing nature-based solutions for stormwater management in urban environments. Their bioretention systems integrate specially engineered soil media and vegetation to naturally filter pollutants and reduce flooding risks. Projects have demonstrated up to 90% removal of common urban runoff contaminants while creating green spaces that enhance community resilience.
A fourth portfolio company focuses on water infrastructure digitalization through IoT sensors and predictive analytics. Their smart water network solution has helped utilities reduce non-revenue water losses by an average of 25% and extend asset lifespans through optimized maintenance. The technology now monitors over 10,000 kilometers of water infrastructure across France.
Beyond individual success stories, Calao’s portfolio companies exhibit strong synergies and opportunities for collaboration. For instance, the AI-powered monitoring platform has been integrated with the smart infrastructure solution to enable more sophisticated predictive maintenance. This exemplifies how Calao strategically builds an ecosystem of complementary technologies.
Measured impacts across the portfolio include over 50 billion liters of water saved annually, 100,000+ tons of CO2 emissions avoided, and €75 million in reduced operating costs for customers. These results validate Calao’s thesis that water technology innovation can deliver both strong financial returns and meaningful environmental benefits.
Read more about successful water technology commercialization approaches.
Value Beyond Capital

At the heart of Calao Finance’s success lies a comprehensive support ecosystem that transforms portfolio companies into water technology leaders. Going far beyond traditional capital deployment, the firm has built a multifaceted platform that addresses the unique challenges water entrepreneurs face.
Technical expertise forms the foundation of Calao’s value-add approach. The firm maintains a network of water industry veterans and subject matter experts who provide portfolio companies with specialized knowledge in areas like membrane technology, water chemistry, and treatment processes. This technical advisory board helps startups refine their solutions and navigate complex regulatory requirements.
Market access represents another crucial pillar of support. Through strategic partnerships with major utilities, industrial players, and municipalities across France and Europe, Calao creates commercial opportunities for portfolio companies to pilot and scale their innovations. The firm’s deep relationships with key industry stakeholders open doors that would typically take years for startups to access independently.
Perhaps most valuable is Calao’s role in facilitating strategic partnerships. The firm actively brokers connections between portfolio companies to enable technology integration and create powerful solution synergies. Additionally, Calao leverages its extensive network to orchestrate partnerships with established water companies, creating channels for both technical validation and market entry.
Beyond discrete support elements, Calao takes an active role in strategic planning and organizational development. The firm’s operating partners work closely with management teams to refine business models, optimize go-to-market strategies, and build robust operational foundations. This hands-on approach helps startups avoid common pitfalls and accelerate their path to commercial success.
Crucially, Calao recognizes that water technology ventures face unique commercialization challenges compared to traditional software startups. The firm has structured its support ecosystem specifically to address extended sales cycles, complex stakeholder dynamics, and intensive piloting requirements characteristic of the water sector. As outlined in “can private capital change the world of water for the better,” this sector-specific approach is essential for driving meaningful innovation in water technology.
The comprehensive nature of Calao’s support ecosystem creates a powerful multiplier effect on capital deployment. By surrounding promising technologies with the essential ingredients for success – technical validation, market access, strategic partnerships, and operational expertise – the firm dramatically improves the odds of transforming innovative solutions into scaled, impactful businesses.
Impact Metrics and Returns

Calao Finance has developed a sophisticated dual-track approach to measuring success, recognizing that environmental impact and financial returns must coexist for sustainable water infrastructure investment. Their methodology combines rigorous financial metrics with detailed environmental impact assessments to provide a comprehensive view of investment performance.
On the financial side, Calao employs traditional private equity metrics like IRR and MOIC while adding water-specific considerations. They analyze the cost savings their portfolio companies generate for utilities and industrial clients, tracking metrics like reduced operating expenses and improved asset utilization. This approach has helped them achieve consistent double-digit returns while managing risk through diversification across different water technology segments.
Their environmental impact framework stands out for its granular approach to measuring water-related outcomes. Beyond simple volume metrics, Calao tracks improvements in water quality, reductions in chemical usage, and energy efficiency gains. They’ve developed proprietary tools to quantify harder-to-measure impacts like ecosystem health improvements and climate resilience enhancement. Each portfolio company must report quarterly on a standardized set of environmental KPIs, ensuring consistent measurement across investments.
Particularly noteworthy is Calao’s emphasis on additionality – ensuring their investments create impact that wouldn’t have occurred otherwise. As outlined in how to mitigate 4 shades of water risk through impact investing, they assess whether their capital and expertise genuinely accelerate positive environmental outcomes rather than simply funding already-profitable projects.
The firm has also pioneered innovative approaches to stakeholder engagement in impact measurement. They regularly convene advisory panels of water experts, environmental scientists, and community representatives to review their impact methodology and suggest improvements. This collaborative approach helps ensure their metrics remain relevant and aligned with real-world needs.
Transparency is central to Calao’s reporting philosophy. They publish detailed annual impact reports that combine quantitative metrics with qualitative case studies, providing stakeholders with a clear view of both successful outcomes and lessons learned. This commitment to openness has helped them build credibility with institutional investors increasingly focused on ESG considerations.
Looking ahead, Calao is developing more sophisticated ways to measure long-term impact, including the use of satellite data and IoT sensors to track environmental changes in real-time. They’re also working to better quantify social impacts like improved public health outcomes and enhanced community resilience to water stress.
Final words
Calao Finance’s strategic positioning in the water technology sector reflects a sophisticated understanding of both market opportunities and environmental imperatives. Their focus on digital innovation and infrastructure monitoring, exemplified by investments like Acwa Robotics, demonstrates how financial returns can align with sustainable impact. While firmly rooted in the French market, their European ambitions and selective approach to growth-stage investments suggest a thoughtful expansion strategy. As water infrastructure challenges grow more complex, Calao’s emphasis on smart solutions and digital transformation positions them well for future opportunities. Their model offers valuable insights for both entrepreneurs seeking growth capital and investors interested in the water technology sector’s potential for generating both financial and environmental returns.
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