Earth Capital
Earth Capital Limited, established in 2008 and headquartered in London, is a private equity and infrastructure investment firm focusing on growth capital and expansion capital. It specializes in investing in sustainable technology companies dealing with resource and energy constraints, as well as fund of fund investments in private equity funds. The firm targets opportunities in growth, renewable energy, agriculture technology and food, clean industry, resource efficiency, and infrastructure sectors. Earth Capital invests globally, with a focus on Colombia, Latin America, Europe, the United Kingdom, and Africa/Middle East. It typically invests between $5 million to $15 million in companies with an enterprise value of $10 million to $50 million, revenues of $1 million to $5 million, and EBITDA up to $2 million, preferring majority stakes. The firm's experienced team, part of the $1.1bn international group SET3, supports management teams with active, long-term investment and value-added portfolio management.
8 past transactions
Ace Aquatec
Venture Round in 2023
Ace Aquatec Limited is a company focused on developing innovative technologies for the aquaculture and marine industries. Founded in 1999 and headquartered in Dundee, United Kingdom, with additional offices in Scotland and Canada, the company specializes in environmental solutions that prioritize animal welfare. Its product range includes acoustic marine mammal deterrents, humane electrical fish stunning equipment, biomass measurement using underwater 3D cameras, and advanced systems for removing and destroying sea lice. These solutions serve various markets, including fish farming, offshore construction, and fisheries. The latest acoustic deterrent model, US3, incorporates data logging and sonar triggering, enhancing its effectiveness in safeguarding marine wildlife during aquaculture operations. The firm aims to lead the way in responsible marine practices through its sophisticated technological advancements.
Sustainable Energy Holdings
Private Equity Round in 2022
Sustainable Energy Holdings Ltd ("SEHL") was formed by the merger of four of its portfolio companies, all of which produce low-carbon bioenergy. SEHL will boost performance by expanding the platform's asset base through a buy-and-build strategy that includes the acquisition and development of new plants as well as the improvement of existing assets.
Limelight Energy
Acquisition in 2022
Limelight Energy offers solar and energy solutions for self-sufficiency and renewable living.
Propelair
Venture Round in 2022
Propelair is a UK-based manufacturer specializing in innovative toilet systems that prioritize water and energy conservation. Utilizing its patented POWA™ displaced air technology, Propelair's toilets achieve a powerful flush with only 1.5 litres of water, significantly lowering water consumption and associated energy costs. This advanced design not only enhances drainage and reduces sewage but also minimizes maintenance needs, making it a hygienic alternative to conventional toilets. The company’s products demonstrate notable environmental benefits, achieving an average reduction of 80 percent in carbon footprint and exceeding various sustainability standards, including BREEAM and the Code for Sustainable Homes. Propelair aims to provide a more efficient and eco-friendly solution to modern sanitation challenges.
SoftIron
Series B in 2020
SoftIron Limited is a manufacturer of enterprise data storage hardware solutions, focusing on enhancing the efficiency and performance of data centers. Founded in 2012 and based in London, the company offers a range of products, including HyperDrive, a software-defined storage appliance built on Ceph, and Hypercast, a server designed for real-time and file-based video streaming. Additionally, SoftIron provides OverDrive servers, which support 64-bit development on ARM architecture. Its solutions are designed to minimize upfront capital expenditures and avoid vendor lock-in, making them suitable for both private and public cloud environments as well as enterprise-scale facilities. By prioritizing metrics such as density, efficiency, capacity, speed, and heat emission, SoftIron aims to deliver superior performance in the rapidly evolving data storage landscape.
Propelair
Venture Round in 2017
Propelair is a UK-based manufacturer specializing in innovative toilet systems that prioritize water and energy conservation. Utilizing its patented POWA™ displaced air technology, Propelair's toilets achieve a powerful flush with only 1.5 litres of water, significantly lowering water consumption and associated energy costs. This advanced design not only enhances drainage and reduces sewage but also minimizes maintenance needs, making it a hygienic alternative to conventional toilets. The company’s products demonstrate notable environmental benefits, achieving an average reduction of 80 percent in carbon footprint and exceeding various sustainability standards, including BREEAM and the Code for Sustainable Homes. Propelair aims to provide a more efficient and eco-friendly solution to modern sanitation challenges.
SoftIron
Series A in 2017
SoftIron Limited is a manufacturer of enterprise data storage hardware solutions, focusing on enhancing the efficiency and performance of data centers. Founded in 2012 and based in London, the company offers a range of products, including HyperDrive, a software-defined storage appliance built on Ceph, and Hypercast, a server designed for real-time and file-based video streaming. Additionally, SoftIron provides OverDrive servers, which support 64-bit development on ARM architecture. Its solutions are designed to minimize upfront capital expenditures and avoid vendor lock-in, making them suitable for both private and public cloud environments as well as enterprise-scale facilities. By prioritizing metrics such as density, efficiency, capacity, speed, and heat emission, SoftIron aims to deliver superior performance in the rapidly evolving data storage landscape.
Arvia
Series B in 2012
Arvia Technology Limited, established in 2007 and based in Runcorn, UK, specializes in water and wastewater treatment systems. The company's core product is the Organics Destruction Cell (ODC), a tertiary treatment system that combines adsorption and advanced oxidation to remove hard chemical oxygen demand, color, and persistent organic micro-pollutants from wastewater. The ODC uses Arvia's patented regenerating adsorbent, Nyex, to concentrate and continuously oxidize contaminants, ensuring water quality compliance with local discharge regulations or suitability for reuse. Serving industries such as chemicals, food and beverage, pharmaceuticals, and utilities, Arvia's technology offers a cost-effective, chemical-free, and low-maintenance solution for treating hazardous organic chemicals in water.
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