Building public trust, one catchment at a time
Revolutionising water management with transparency and innovation
Building public trust, one catchment at a time
Revolutionising water management with transparency and innovation
About Additive Catchments
Welcome to Additive Catchments, where our commitment to environmental stewardship and community trust guides everything we do.
Our pioneering Catchment Management as a Service (CMaaS) is at the forefront of ensuring water quality and compliance through continuous monitoring and actionable insights.
Leveraging advanced IoT-enabled sensors and AI applications, we empower water companies with the confidence to meet regulatory demands, specifically Section 82, while offering communities unparalleled transparency into the environmental impact of water management operations.
Our technology solutions
Catchment Monitoring as a Service (CMaaS®)
Combine advanced monitoring, systems thinking and AI to gain a comprehensive view of waterway health.
Storm Overflow Monitoring
Predict and monitor the impact of storm overflows on our waterways in real time.
Agricultural Monitoring
Gain detailed insight into farming practices’ effects on local water bodies and adopt more sustainable practices, reduce runoff, and enhance biodiversity.
Nature-Based Solution Monitoring
Evaluate the effectiveness of green infrastructure in improving water quality, nutrient neutrality and habitat conditions.
Our mission
At Additive Catchments, our mission is twofold: to provide water companies with a state-of-the-art tool for compliance and environmental management, and to rebuild public trust in water management from river to sea. CMaaS represents a paradigm shi< in water quality monitoring, combining compliance assurance with the opportunity for water companies to engage positively with the communities they serve.
Our impact-driven, non-profit consortium is dedicated to delivering:
Regulatory compliance
Transparency & accountability
Actionable insights
Innovation & accessibility
Scalability & future-proofing
Why use CMaaS with Additive Catchments
Our CMaaS solution is not just a service but a partnership for progress, grounded in five core
pillars designed to exceed compliance and foster environmental regeneration:
Siemens
"We at Siemens are proud to partner with Additive.earth in developing their innovative solutions. Additive Catchments will revolutionise environmental monitoring and water resource management. This game-changing ‘as a service’ model is set to significantly impact sustainability, efficiency, and decision-making for various industries."
Adam Cartwright - Global Industry Strategy Director, Water - Siemens
AtkinsRéalis
"AtkinsRéalis is proud to partner with Additive.earth, who are at the forefront of the environmental monitoring era. Their innovative catchment monitoring solution will transform environmental monitoring and we see immense international market potential."
Gwion Kennard, Director of Digital Engineering, AtkinsRéalis
Galliford Try PLC
"Galliford Try is thrilled to partner with Additive.earth. Additive is truly paving the way for a more sustainable future."
Steve Slessor, Managing Director,
Galliford Try - Environment Business
Mendix
"Additive.earth using our low-code platform, paves the way for many applications serving diverse sectors and use cases worldwide – ranging from water management and nature-based solutions to insurance. This approach optimises value and impact and we take pride in partnering with Additive on this essential journey."
Tim Srock, CEO, Mendix - A Siemens Business
Meet our team
Sarah Smith
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Sarah Smith
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Sarah Smith
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Sarah Smith
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Success story
Monitoring Bristol’s River Frome to improve carbon reduction
In partnership with Wessex Water, we conducted a comprehensive catchment scale analysis of the twenty-mile-long River Frome in Somerset.
This project aimed to evaluate the carbon footprint, cost and deployment speed of monitoring for Section 82 requirements, yielding impressive results:
- 75% carbon reduction
- 4x faster delivery
- 43% cost savings
Talk to the team
Whether you’re in pursuit of new solutions, expert guidance or simply exploring how our technology can support your environmental goals, we’re here for you.