Turquoise International

Turquoise International is a London-based merchant bank established in 2002, specializing in advisory services related to capital raising, mergers and acquisitions, and investment management. The firm focuses on sectors such as energy, technology, and sustainability, offering expertise in Energy, Environment, and Efficiency. Through its tailored services, Turquoise International aims to support clients in navigating complex financial landscapes while promoting sustainable practices in their operations.

Desmond Astley Cooper

Director

Luke Jackson

Senior Associate

Charlie Ramsden

Associate Director

19 past transactions

Cellexcel

Seed Round in 2024
Cellexcel is a biomaterials research company focused on developing innovative water-resistant biocomposite materials. These materials are designed to replace traditional composites like fiberglass and carbon fiber, as well as plastics and potentially metals. By enhancing the water resistance of biomaterials, Cellexcel aims to reduce the carbon footprint associated with manufacturing while improving the security of supply chains. The company's technology enables clients to produce bio-composite materials that effectively resist water absorption, contributing to more sustainable manufacturing practices.

GridDuck

Series A in 2023
GridDuck transforms homes and businesses into part of the smart grid. It uses a Zigbee wireless network for real-time energy monitoring and control via its gateway, connected plugs, relays, and switches. The system also monitors grid conditions and responds to commands from the gateway.

Cellexcel

Seed Round in 2023
Cellexcel is a biomaterials research company focused on developing innovative water-resistant biocomposite materials. These materials are designed to replace traditional composites like fiberglass and carbon fiber, as well as plastics and potentially metals. By enhancing the water resistance of biomaterials, Cellexcel aims to reduce the carbon footprint associated with manufacturing while improving the security of supply chains. The company's technology enables clients to produce bio-composite materials that effectively resist water absorption, contributing to more sustainable manufacturing practices.

Advanced Electric Machines

Series A in 2023
Founded in 2016, Advanced Electric Machines designs and manufactures traction motors for electric vehicles. Their products include ReFITT motors for trucks and buses, and HDSRM, a magnet-free motor. The company aims to deliver high-performance, cost-effective, and environmentally friendly solutions, with a focus on using UK manufacturing for global export.

weekly.shop

Venture Round in 2023
Weekly.Shop is a sustainable online grocery retailer that specializes in delivering groceries and household supplies in refillable containers. It collects, cleans, and reuses these containers, reducing waste. The company operates using electric vehicles for deliveries, serving customers in nearby areas. Weekly.Shop offers a wide range of ethically sourced, sustainable products, with free delivery and a flexible subscription model, making it convenient for consumers to shop zero-waste groceries.

Humans Not Robots

Seed Round in 2023
Humans Not Robots leverages artificial intelligence and big data to empower media and broadcast organizations. Their platform offers analytics and workflow observability, enabling these companies to optimize their operations for cleaner, cheaper, and faster media supply chains while reducing environmental impact.

Cranfield Aerospace

Venture Round in 2023
Cranfield Aerospace is a pioneering aerospace company specializing in developing zero-emissions aircraft powered by hydrogen fuel. They focus on complex aircraft modifications and new aircraft design, serving prominent clients such as Airbus and Boeing.

KiDSiE

Pre Seed Round in 2023
KiDSiE operates a circular marketplace for open-box and gently used children's items. It connects families seeking affordable options with retailers and brands looking to manage returned or surplus inventory sustainably.

VirtTuri

Seed Round in 2023
VirtTuri is a technology company that specializes in developing an AI avatar digital assistant aimed at enhancing user engagement and improving the retention of complex information. The platform incorporates advanced features such as text-to-speech functionality, a visual interface, and machine learning capabilities. These tools are designed to effectively address frequently asked questions related to various ailments, allowing clients to provide contextual and accurate information in multiple languages. Through its innovative solutions, VirtTuri seeks to transform the way information is communicated and accessed, particularly in healthcare settings.

Smartbell

Venture Round in 2023
Smartbell develops a wearable device for livestock that monitors animal health in real-time. Its technology enables early detection of diseases like pneumonia and scours, helping farmers enhance cattle well-being, reduce disease risks, and boost productivity.

Squished

Seed Round in 2023
Squished is a food and beverage company that reduces fruit farm waste. It operates a snacks factory producing high-quality snacks from natural ingredients, with a focus on rescuing thousands of kilos of berries that would otherwise go to waste. This process transforms them into dried fruits and snack bars, helping farmers minimize waste.

ARC Aerosystems

Venture Round in 2023
ARC Aerosystems is a company that specializes in the development of civil hybrid-electric vertical take-off and landing (e-VTOL) aircraft. By integrating advanced aerodynamics, innovative aircraft design, and cutting-edge propulsion systems, ARC aims to revolutionize air travel for both passengers and cargo. The company's focus on clean energy solutions and all-carbon composite airframes allows for high speeds and efficient travel, setting a new standard in the air taxi market. Through its commitment to redefining the flying experience, ARC Aerosystems is positioned to transform the way humans and goods are transported globally.

Switchd

Seed Round in 2021
Switchd Ltd is a London-based company that specializes in energy switching services. Founded in 2016, it provides a platform that enables customers to automatically switch their gas and electric suppliers, ensuring they are consistently on the most advantageous energy deals. The service simplifies the process by collecting existing tariff information and customer preferences, allowing Switchd to search the energy market for better offers from both major and independent suppliers. This approach not only helps users save on their energy bills but also ensures that their savings are maintained over time with minimal effort required on their part. Switchd was previously known as Switched Energy Ltd until it rebranded in April 2018.

Oval Medical Technologies

Equity Crowdfunding in 2014
Oval Medical Technologies is a UK-based specialty medical device company that designs and develops drug delivery systems, including autoinjectors, prefilled syringes, and vials. Its technology uses cyclic olefin plastic to manufacture devices capable of delivering viscous and non-viscous drugs, enabling self-injection for patients of various ages across therapeutic areas. The company serves pharmaceutical and biotechnology industries and focuses on next-generation autoinjectors to improve safety and convenience in self-administration.

Sustainable Marine Energy

Seed Round in 2014
Sustainable Marine Energy Ltd. is a UK-based company specializing in integrated tidal energy generation systems, with a presence in Edinburgh and Bedford, Canada. Founded in 2012, the company focuses on developing innovative platforms for the tidal energy sector, notably the PLATform for Inshore energy (PLAT-I) and the PLATform for Offshore energy (PLAT-O). The PLAT-I is a floating tidal energy power station tailored for river and inshore tidal sites, while the PLAT-O is a submerged platform designed to harness energy from tidal flows. Sustainable Marine Energy aims to provide cost-effective solutions that generate renewable electricity without environmental impact, offering services such as site valuation, engineering, and installation. By addressing the industry's challenges, the company seeks to enhance the competitiveness of tidal energy compared to traditional electricity generation methods.

Caralon Global

Seed Round in 2011
Caralon Global is developing and commercializing an ultra-thin, highly efficient insulation product. The patent-pending technology used to create its Nanotheca® insulation is a uniquely-manufactured vacuum insulated panel that reduces heat transfer better than traditional fiberglass or polyurethane products.

Ellergreen Group

Seed Round in 2010
Ellergreen Group offers a wide range of products and services, including renewable energy solutions.

Proton Motor

Venture Round in 2006
Proton Motor specializes in the development and manufacture of hydrogen fuel cells and hybrid fuel cell systems, having started production in 1994 within the Magnet Motor company. Headquartered in Puchheim, near Munich, Germany, Proton Motor provides comprehensive solutions encompassing production, manufacturing, and customized implementation of fuel cell systems. The company's offerings cater to various applications, including mobile, maritime, and stationary solutions. Additionally, Proton Motor's product range includes original equipment manufacturer (OEM) fuel cell systems, power supplies, and solar battery storage products. The company primarily operates in Europe, with significant revenue generated from markets in the United Kingdom and Germany.

Zeta Petroleum

Seed Round in 2006
Zeta Petroleum is an oil and gas exploration and production company founded in 2005, with its headquarters in Perth, Australia. The company is engaged in the exploration, development, and production of hydrocarbon resources, focusing primarily on projects located in Romania and Eastern Europe. Zeta Petroleum employs comprehensive systems of control and accountability to manage its operations effectively. The company's strategic initiatives aim to enhance its regional footprint and leverage opportunities within the oil and gas sector.
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