Helios Climate Ventures

Helios Climate Ventures is a venture capital firm founded in 2016 and based in Aspen, Colorado. The firm specializes in investing in early-stage technology and clean technology companies, focusing on opportunities that promise high impact and significant returns. Helios Climate Ventures leverages its extensive network to identify and source well-vetted investment opportunities that are typically challenging to access. As a Registered Investment Adviser, the firm emphasizes its commitment to fostering innovation in the clean technology sector while seeking to drive positive environmental outcomes through its investments.

Josh Grehan

Principal

16 past transactions

Coreshell

Series A in 2025
Coreshell Technologies, Inc. is a company focused on developing advanced lithium-ion batteries, primarily targeting the electric vehicle and grid storage markets. Founded in 2017 and based in Berkeley, California, Coreshell has pioneered a nanolayer thin-film coating technology that addresses the degradation issues commonly faced by rechargeable batteries. This innovative coating protects battery electrodes from chemical reactions that can diminish capacity and safety, thereby enhancing the overall performance and durability of the batteries. By seamlessly integrating into existing manufacturing processes, Coreshell's technology aims to significantly improve battery capacity, safety, and cost-effectiveness, facilitating a smoother transition to electric transportation and renewable energy solutions.

Aqua Membranes

Series B in 2024
Aqua Membranes LLC specializes in the manufacture of reverse osmosis (RO) membrane filtration systems for both commercial and household applications. Founded in 2011 and headquartered in Albuquerque, New Mexico, the company employs innovative three-dimensional Printed Spacer Technology to enhance the performance of its spiral wound membrane elements. This technology replaces traditional feed spacer mesh with directly printed spacers, leading to reduced fouling and lower energy consumption. Aqua Membranes' products cater to various sectors, including home RO systems, seawater desalination, food processing, and industrial applications, thereby contributing to more efficient water treatment solutions and a sustainable water future.

Maxterial

Series A in 2024
Maxterial modifies the surface shape or texture of versatile materials, through a method that is very affordable and easy to introduce into the existing manufacturing process. The resulting microtextured materials dramatically reduce the contact area for the objects and droplets that contact the material surface.

Liminal

Series A in 2023
Liminal operates as a battery manufacturing intelligence provider that utilizes data and analytics. Its mission is to make electric vehicles the default option for any driver. The company was founded in 2015 and is headquartered in Emeryville, California.

Summit Nanotech

Series A in 2023
Summit Nanotech Corporation is a cleantech company based in Calgary, Canada, that specializes in innovative lithium extraction methods aimed at supporting the global energy transition. Founded in 2018, the company has developed a patented direct lithium extraction (DLE) technology that offers a more sustainable and environmentally friendly approach compared to traditional extraction methods. By collaborating with mining companies and lithium asset owners in Chile and Argentina, Summit Nanotech aims to conserve natural resources while optimizing lithium production operations. Its focus on providing cost-effective solutions positions Summit Nanotech as a key player in the lithium supply chain, addressing industry challenges while minimizing environmental impact.

ZincFive

Series D in 2022
ZincFive is an intelligent energy storage and delivery solutions company providing nickel-zinc battery based UPS solutions for mission-critical applications in data centers, intelligent transportation, motive power, and other industries. With 74 patents awarded and 29 patents pending, ZincFive leverages nickel-zinc chemistry within our solutions to provide high power density and performance simultaneous with superior safety and environmental advantages. ZincFive was founded in 2016 and is based in Tualatin, Oregon.

AMP

Series A in 2022
AMP operates as an energy management solutions provider for e-mobility. Its technology underpins offerings from e-mobility pioneers and those on the verge of disrupting the market.

GDI

Series A in 2022
GDI, founded in 2009 and based in Rochester, New York, specializes in the development and manufacture of silicon anodes for lithium-ion batteries. The company focuses on creating patented silicon battery materials that provide superior performance compared to traditional lithium-ion and emerging solid-state batteries. These materials are designed for compatibility with various lithium battery architectures and are engineered for mass production, allowing industries to enhance their product development capabilities. GDI's innovations aim to improve battery performance, particularly in terms of charging times, thereby contributing to a more sustainable and efficient energy future.

Graphenix Development

Series A in 2022
Graphenix Development.(“GDI”), founded in 2009, is a leader in graphenic dispersions, coatings, and high value applications. GDI's core competitive advantage is product oriented chemistry. GDI produces "Graphenic Intermediate Dispersion Systems" under their product line GRIDS(TM). GDI has developed a conductive ink with IIMAK, that was launched globally in Q1 2013. GDi will continue to develop new products with current and new partners.

Paymob

Series B in 2022
Paymob is a digital payments enabler based in Cairo, Egypt, founded in 2015. The company focuses on building payment infrastructure technologies that enhance financial inclusion in the Middle East and Africa (MEA) region. By providing integrated payment services, Paymob helps businesses of all sizes transition from cash to electronic payments, thereby unlocking new opportunities and efficiencies. Its software aims to minimize the risks associated with fraud and theft while speeding up money circulation. By empowering underserved communities with access to a variety of electronic payment and money transfer options, Paymob plays a crucial role in bridging the financial inclusion gap in the region.

Liminal

Series A in 2022
Liminal operates as a battery manufacturing intelligence provider that utilizes data and analytics. Its mission is to make electric vehicles the default option for any driver. The company was founded in 2015 and is headquartered in Emeryville, California.

Coreshell

Series A in 2022
Coreshell Technologies, Inc. is a company focused on developing advanced lithium-ion batteries, primarily targeting the electric vehicle and grid storage markets. Founded in 2017 and based in Berkeley, California, Coreshell has pioneered a nanolayer thin-film coating technology that addresses the degradation issues commonly faced by rechargeable batteries. This innovative coating protects battery electrodes from chemical reactions that can diminish capacity and safety, thereby enhancing the overall performance and durability of the batteries. By seamlessly integrating into existing manufacturing processes, Coreshell's technology aims to significantly improve battery capacity, safety, and cost-effectiveness, facilitating a smoother transition to electric transportation and renewable energy solutions.

Lionano

Series A in 2017
Lionano Inc. is a material manufacturing company commercializing an advanced drop-in replacement material for the lithium-ion batteries. The company focuses on improving the key components of lithium-ion batteries. The material has been nano-engineered to create batteries with greater capacity and cycle life. This technology can enable lighter and lower-cost consumer electronics and longer range for electric vehicles. The technology has been fully developed at Cornell University and Lionano is ready to launch the product. Lionano is led by a combination of unique people: a recent PhD graduate in Chemistry at Cornell University, an MBA from Cornell's Johnson School, a distinguished Professor in electrochemistry research at Cornell University, and an experienced battery industry expert. Lionano was founded in 2013 and is headquartered in Woburn, Massachusetts, USA.

Solarlytics

Series B in 2017
Solarlytics specializes in energy recovery solutions for solar plants, focusing on enhancing energy production in large-scale installations. The company has developed a solar device that utilizes advanced algorithmic machine learning technology to monitor and improve the energy output of solar arrays. This innovative approach allows clients to harness sustainable solar energy more efficiently than traditional optimizers. By maximizing energy production, Solarlytics aims to contribute to reducing global CO2 emissions and mitigating climate change, thereby fostering a positive impact on the environment.
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