The Carbon Trust

Carbon Trust, founded in 2001 and based in London, is dedicated to fostering a sustainable, low-carbon economy by assisting businesses, governments, and organizations worldwide in reducing carbon emissions and enhancing resource efficiency. With a team of over 200 experts in sustainability, including engineers and policy specialists, Carbon Trust leverages nearly two decades of experience in the climate change sector. The organization collaborates with various stakeholders to provide strategic direction, carbon reduction plans, and energy systems solutions. Its focus areas include corporate sustainability, green finance, and future energy systems, with particular emphasis on offshore wind and net-zero initiatives. Additionally, Carbon Trust supports cities, states, and regions in addressing the climate emergency, reinforcing its commitment to a sustainable future. Surpluses from its commercial activities are reinvested into these initiatives, ensuring a continuous drive towards its mission.

Bruno Gardner

Managing Director, Policy and Innovation

Hugh Jones

Managing Director, Advisory and Corporate Sustainability

Morgan Jones

Associate Director, Certification

Richard Rugg

Managing Director, Programmes and Innovation

24 past transactions

KAMIM Technologies

Pre Seed Round in 2023
KAMIM Technologies is a leading EPC (Engineering, Procurement, and Construction) company. We specialize in crafting tailored engineering & solar energy solutions for residential, commercial, and industrial sectors. Beyond conventional solar solutions, we emphasize creating solar-powered systems, especially for the agricultural sector. Our innovative products such as solar-powered cold rooms, irrigation systems, and driers aim to revolutionize agricultural productivity and sustainability. We were founded by members with over 40 years of combined industry experience.

Ozo Innovations

Grant in 2019
Ozo Innovations Ltd. specializes in ozone-based sanitization and cleaning technologies. The company offers a range of products designed to reduce food spoilage and enhance hygiene in various settings, from small domestic fridge devices to large-scale systems for hotels and restaurants. Its product lineup includes systems like the OZOCUBE, which can be integrated into ventilation systems for continuous degreasing and odor control, and portable units such as the OPS-3 and OPS-2 for use in diverse environments, including offices and vehicles. Additionally, Ozo provides an electrolyzed water system known as EW-CUBE for cleaning in the food industry. With a commitment to eco-friendly and energy-efficient solutions, Ozo Innovations serves markets in the United Kingdom, mainland Europe, and North America, addressing applications in food production, agritechnology, and institutional cleaning. Established in 2012 and based in Wallingford, United Kingdom, the company was formerly known as Ozone Purification Ltd. and rebranded in May 2016.

Innovex

Grant in 2019
Innovex is focused on revolutionizing the distribution of off-grid solar energy systems and equipment by utilizing digital tools and embedded technology. The company provides a range of services, including the design, manufacturing, and installation of these energy systems. Additionally, Innovex offers a cloud-based IoT service that allows for remote monitoring and management of solar energy systems. This technology enables installers and distributors to enhance their operations and scale effectively, contributing to the broader adoption of renewable energy solutions.

Concurrent Thinking

Venture Round in 2014
Concurrent Thinking Limited, based in Warwick, United Kingdom, specializes in the design and implementation of large-scale computing infrastructures and software tailored for high-performance computing. The company offers innovative solutions for data center infrastructure management, including concurrentCOMMAND, which interfaces with various management systems to identify energy-saving opportunities, and concurrentCONTROL, a platform for comprehensive monitoring of power, environmental conditions, servers, and operating systems within data centers. Additionally, Concurrent Thinking provides essential support and maintenance services to enhance operational efficiency. The company serves a diverse clientele, including those in IT, environmental sectors, finance, and facilities management. Established in 2009 and originally named Retromaze Limited, it rebranded to Concurrent Thinking in June 2010.

Helveta

Venture Round in 2013
Helveta Ltd develops technology products for the timber and food sectors. It offers The CI World platform, an interactive cartography application that provides auditable traceability, asset tracking, resource and forest use mapping, and chain of custody control for extended supply chains; and allows monitoring logging activities, and to export data points and associated icons to GIS products enabling the online sharing of maps among communities over the Web. The company serves growers, farm managers, agronomists, and buyers. Helveta Ltd was incorporated in 2004 and is based in Oxford, the United Kingdom with operations in Nigeria, the Central African Republic, the Republic of Congo, and Cameroon.

Eight19

Venture Round in 2012
Eight19 Limited, based in Cambridge, United Kingdom, specializes in the development and manufacturing of organic photovoltaics (OPVs) for lightweight solar panels. Founded in 2010, the company focuses on energy harvesting solutions for indoor, outdoor, and off-grid applications. Its OPV modules are designed for use in wireless devices, retail environments, and portable electronics, benefiting from attributes such as flexibility, thinness, and robustness. Eight19 employs industry-standard roll-to-roll processes and solution-based organic materials, allowing for a cost-effective scaling of its technology to meet market demands. The company also offers integrated demonstration units that include Bluetooth-connected temperature and light sensors, showcasing the versatility of its products in various applications.

Acal Energy

Venture Round in 2011
Acal Energy is a developer of fuel cell systems, modules, and consumable chemicals aimed at providing zero-emission solutions for various applications, including stationary, residential, and automotive uses that require more than 1 kW of power. The company's innovative technology utilizes a proprietary liquid catalyst, which replaces the platinum typically used in conventional fuel cells. This advancement not only reduces costs but also enhances the performance of Proton Exchange Membrane (PEM) fuel cells, facilitating their adoption in key markets. By offering a clean driving alternative that does not require waiting for battery recharging, Acal Energy positions itself as a significant player in the transition to sustainable energy solutions.

Eight19

Venture Round in 2010
Eight19 Limited, based in Cambridge, United Kingdom, specializes in the development and manufacturing of organic photovoltaics (OPVs) for lightweight solar panels. Founded in 2010, the company focuses on energy harvesting solutions for indoor, outdoor, and off-grid applications. Its OPV modules are designed for use in wireless devices, retail environments, and portable electronics, benefiting from attributes such as flexibility, thinness, and robustness. Eight19 employs industry-standard roll-to-roll processes and solution-based organic materials, allowing for a cost-effective scaling of its technology to meet market demands. The company also offers integrated demonstration units that include Bluetooth-connected temperature and light sensors, showcasing the versatility of its products in various applications.

Green Biologics

Series B in 2010
Green Biologics Limited is an industrial biotechnology company based in Abingdon, United Kingdom, focused on producing renewable specialty chemicals. The company offers products such as n-butanol, acetone, and C4 derivatives, along with GreenFlame charcoal lighting fluids. These products find applications in various sectors, including paints, coatings, adhesives, personal care, cosmetics, food ingredients, health, and industrial cleaners. Green Biologics aims to be a leader in advanced fermentation technologies that convert biomass into renewable fuels and chemicals. Established in 2002, the company has additional facilities in the United States and satellite offices in China, Brazil, and India.

Concurrent Thinking

Venture Round in 2010
Concurrent Thinking Limited, based in Warwick, United Kingdom, specializes in the design and implementation of large-scale computing infrastructures and software tailored for high-performance computing. The company offers innovative solutions for data center infrastructure management, including concurrentCOMMAND, which interfaces with various management systems to identify energy-saving opportunities, and concurrentCONTROL, a platform for comprehensive monitoring of power, environmental conditions, servers, and operating systems within data centers. Additionally, Concurrent Thinking provides essential support and maintenance services to enhance operational efficiency. The company serves a diverse clientele, including those in IT, environmental sectors, finance, and facilities management. Established in 2009 and originally named Retromaze Limited, it rebranded to Concurrent Thinking in June 2010.

Intamac Systems

Venture Round in 2010
Intamac Systems Ltd. operates a cloud-based platform that facilitates connectivity to the Internet of Things (IoT), focusing on enhancing business models and customer engagement for original equipment manufacturers (OEMs) and product vendors in the connected home market. The company provides an Internet platform that connects various products and devices, enabling monitoring and control services accessible via mobile phones or the Internet. Its offerings include alarm monitoring, elderly care, flood and fire detection, camera monitoring, and environmental monitoring, along with a messaging service that alerts users to issues such as power failures and security breaches. Intamac also provides a full access license program, allowing companies to control the IoT software and develop custom solutions with reduced risk. Founded in 2000, Intamac is headquartered in Northampton, United Kingdom, with additional offices in Cambridge, UK, and Trivandrum, India.

Helveta

Venture Round in 2010
Helveta Ltd develops technology products for the timber and food sectors. It offers The CI World platform, an interactive cartography application that provides auditable traceability, asset tracking, resource and forest use mapping, and chain of custody control for extended supply chains; and allows monitoring logging activities, and to export data points and associated icons to GIS products enabling the online sharing of maps among communities over the Web. The company serves growers, farm managers, agronomists, and buyers. Helveta Ltd was incorporated in 2004 and is based in Oxford, the United Kingdom with operations in Nigeria, the Central African Republic, the Republic of Congo, and Cameroon.

Arieso

Venture Round in 2010
Arieso Ltd. specializes in geo-location services and network optimization solutions for wireless operators and service providers. Founded in 2002 and headquartered in Newbury, United Kingdom, the company offers a range of products, including ariesoGEO for mobile network performance monitoring, ariesoDNA for network adaptation, ariesoCMP for capital management and planning, and ariesoACP for automatic cell planning and optimization. These solutions aim to enhance subscriber experience by automating network design and management, as well as optimizing capital budget programs. Additionally, Arieso provides consulting, support, and maintenance services. By analyzing mobile connection events, the company helps operators identify high-usage areas, enabling the strategic deployment of small cells to improve network performance.

Oxsensis

Series C in 2010
Oxsensis Ltd. is a manufacturer of non-electrical optical sensors designed for extreme environments, focusing on applications in aerospace, power generation, oil and gas, and nuclear industries. Founded in 2003 and headquartered in Didcot, United Kingdom, the company specializes in optical pressure sensor systems, temperature transducers, and optical accelerometers. Its product lineup includes the Wave-Phire Dynamic Pressure Transducer for harsh atmospheres, the i-Phire 4 Channel Optical Interrogator Unit for converting optical signals into voltage signals, and S-Phire software for combustion monitoring. These sensors provide high sensitivity and immunity to electromagnetic interference, optimizing performance in demanding conditions. Oxsensis also supports various markets, including energy production, emissions monitoring, and high-temperature equipment health monitoring, with additional offices in the United States, Russia, China, and Japan.

Aerothermal Group

Venture Round in 2010
Aerothermal Group specializes in waste treatment solutions that significantly benefit the environment by diverting waste from landfills and enhancing biogas energy recovery. The company develops advanced autoclaves intended for various industrial applications, including aerospace and motorsport, to create an effective waste treatment process. This process maximizes the recovery of organic material from diverse waste streams such as household, commercial, agricultural, and industrial waste. By providing innovative alternatives for industrial processing, Aerothermal Group enables clients to transition toward more sustainable practices and harness green energy from waste.

Marine Current Turbines

Venture Round in 2009
Marine Current Turbines Limited specializes in the design and manufacture of tidal stream power generation systems. The company focuses on providing tidal stream technology for energy projects and ensuring effective maintenance during operation. Its tidal turbines are specifically designed for installation on the seabed in areas with high tidal current velocities or strong ocean currents, allowing them to harness energy from flowing water. Founded in 2000 and based in Bristol, United Kingdom, Marine Current Turbines operates as a subsidiary of Atlantis Turbines Pte Ltd as of July 2015.

New Earth Solutions Group

Debt Financing in 2009
New Earth Solutions, Ltd. is a biological waste treatment and recycling company based in Verwood, United Kingdom, founded in 2002. The company specializes in composting source segregated organic wastes, animal by-products, and biodegradable municipal wastes, while also recycling materials such as plastics, glass, and metals. In addition to its composting services, New Earth Solutions is involved in developing local renewable energy plants powered by refuse-derived fuels, which helps local authorities and commercial customers meet or surpass their regulatory targets for waste management. Through its focus on resource recovery, the company aims to promote sustainable waste disposal practices.

Whitfield Solar

Venture Round in 2009
Whitfield Solar excels at delivering renewable energy through the development of low-cost solar concentrators. By transferring the engineering philosophies and technical know-how from established industries to this emerging arena, we have set standards for cost-effectiveness, reliability and ease of installation.

Plaxica

Venture Round in 2009
Plaxica Limited is a technology and licensing company that specializes in the production of biopolymers and platform chemicals derived from renewable resources. Founded in 2008 and based in the United Kingdom, Plaxica develops innovative products such as Optipure® D Lactic Acid, Xylex® Lignin Free Sugars, and Versalac® Low Cost Lactic Acid technology. Its biopolymers, including polylactic acid, are utilized across various industries, including food packaging, automotive, textiles, electronics, and household goods. By focusing on sustainable materials, Plaxica aims to contribute to environmentally friendly solutions in multiple sectors.

CamSemi

Series D in 2009
CamSemi is a privately-held, fabless company based in Cambridge, UK, helping customers find faster, lower cost and easier ways to design and manufacture more energy-efficient power conversion products. CamSemi’s products are based on its portfolio of patented, proprietary technologies and topologies including intelligent control architectures, RDFC and PowerBrane. These new approaches can benefit multiple markets although initially the company is targeting two major opportunities: high-volume mains power supplies and lighting applications.

Green Biologics

Venture Round in 2009
Green Biologics Limited is an industrial biotechnology company based in Abingdon, United Kingdom, focused on producing renewable specialty chemicals. The company offers products such as n-butanol, acetone, and C4 derivatives, along with GreenFlame charcoal lighting fluids. These products find applications in various sectors, including paints, coatings, adhesives, personal care, cosmetics, food ingredients, health, and industrial cleaners. Green Biologics aims to be a leader in advanced fermentation technologies that convert biomass into renewable fuels and chemicals. Established in 2002, the company has additional facilities in the United States and satellite offices in China, Brazil, and India.

Acal Energy

Venture Round in 2008
Acal Energy is a developer of fuel cell systems, modules, and consumable chemicals aimed at providing zero-emission solutions for various applications, including stationary, residential, and automotive uses that require more than 1 kW of power. The company's innovative technology utilizes a proprietary liquid catalyst, which replaces the platinum typically used in conventional fuel cells. This advancement not only reduces costs but also enhances the performance of Proton Exchange Membrane (PEM) fuel cells, facilitating their adoption in key markets. By offering a clean driving alternative that does not require waiting for battery recharging, Acal Energy positions itself as a significant player in the transition to sustainable energy solutions.

CamSemi

Series C in 2007
CamSemi is a privately-held, fabless company based in Cambridge, UK, helping customers find faster, lower cost and easier ways to design and manufacture more energy-efficient power conversion products. CamSemi’s products are based on its portfolio of patented, proprietary technologies and topologies including intelligent control architectures, RDFC and PowerBrane. These new approaches can benefit multiple markets although initially the company is targeting two major opportunities: high-volume mains power supplies and lighting applications.

Green Biologics

Series A in 2007
Green Biologics Limited is an industrial biotechnology company based in Abingdon, United Kingdom, focused on producing renewable specialty chemicals. The company offers products such as n-butanol, acetone, and C4 derivatives, along with GreenFlame charcoal lighting fluids. These products find applications in various sectors, including paints, coatings, adhesives, personal care, cosmetics, food ingredients, health, and industrial cleaners. Green Biologics aims to be a leader in advanced fermentation technologies that convert biomass into renewable fuels and chemicals. Established in 2002, the company has additional facilities in the United States and satellite offices in China, Brazil, and India.
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