Turnstone Capital
Turnstone Capital Management LLC is a private equity and venture capital firm founded in 2004 and based in Rowayton, Connecticut. The firm specializes in early-stage investments, expansion capital, and acquisitions, focusing on sectors such as media and communications, information technology, industrial technology, and financial services. Turnstone Capital invests in both private and public companies with capitalizations below $200 million, typically engaging in transactions ranging from $5 million to $50 million, with an average investment of $10 million per deal. The firm seeks opportunities in areas like digital media, artificial intelligence, energy transition technologies, and payment services. While it primarily invests in the United States, Turnstone Capital is open to opportunities in the European Union, Latin America, and India. The firm tends to prefer minority stakes in growth transactions but may take control positions in management buyouts, often seeking a board seat in its portfolio companies.
Top Stages
3 past transactions
Global BioDiagnostics
Series A in 2015
Global BioDiagnostics Corp. is a biotechnology company that focuses on developing and manufacturing diagnostic solutions for various diseases, particularly tuberculosis (TB). Founded in 2009 and headquartered in Temple, Texas, with an additional office in Daresbury, United Kingdom, the company specializes in creating diagnostic assays and in vivo products. These innovations facilitate the detection of active TB and support researchers in advancing TB pharmaceuticals to market. Global BioDiagnostics aims to address significant healthcare needs by providing rapid, low-cost, and user-friendly point-of-care tests for TB diagnosis.
Luxexcel
Series A in 2013
Luxexcel is a pioneering company specializing in the 3D printing of lenses and optical products. It is the only organization in the world that possesses the complete technology stack necessary for the 3D printing of optics, including hardware, software, processes, and materials. By leveraging its innovative technology, Luxexcel enables the production of custom quality prescription lenses, paving the way for advancements in both traditional eyewear and smart eyewear solutions. The company's unique 3D optic printing services are designed to create optically smooth structures and surfaces, allowing customers to obtain high-quality lenses at a reduced cost. Through its advancements, Luxexcel aims to transform the eyewear industry and support technology partners in developing specialized optical solutions.
Morgan Solar
Series A in 2010
Morgan Solar Inc. is a company established in 2007 with a focus on developing efficient and cost-effective solar technology. Founded by John Paul Morgan, a Physics Engineer with expertise in optics and photovoltaics, the company aims to address longstanding challenges in solar energy. Its flagship product, the Sun Simba HCPV, is tailored for solar farm applications and was introduced following initial testing and demonstrations beginning in 2009. In addition to this, Morgan Solar offers innovations such as the Sun Stream Window and the Sun Block Panel, which cater to building applications. The company utilizes advanced sunlight management systems, including ray tracing software that models various factors affecting urban environments, such as daylight, glare, and energy generation potential. This technology is supported by IoT sensors and a data analytics portal, enabling clients to customize their energy solutions effectively.
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