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Portfolio Careers

Our portfolio companies are mission-oriented, well funded, diverse, and disruptive. Hop onboard!
Showing 29 companies
DeepTech
Manufacturing
11 - 50 employees
Series A

Boston Materials is a manufacturer of advanced energy transfer materials, focusing on thermal interface materials, composite materials, and fuel cell bipolar plates. Their patented Z-axis Fiber™ technology utilizes vertically aligned carbon fibers to enhance energy transfer properties, addressing critical challenges in thermal management, electrification, and lightweighting across high-growth industries such as semiconductors, electrified vehicles, and aerospace. With a production capacity of 1,000,000 square meters annually and plans for expansion, Boston Materials is positioned to meet the demands of trillion-dollar markets while maintaining a commitment to quality and innovation.

DeepTech
Energy
Manufacturing
Sustainability
11 - 50 employees

Advanced Ionics is pioneering the future of industrial hydrogen with its innovative electrolyzer technology, which significantly reduces the cost of green hydrogen production. By utilizing their Symbiotic™ technology, the company enables industrial hydrogen producers to generate green hydrogen efficiently within their existing facilities, leveraging onsite process and waste heat. This approach not only minimizes electricity consumption but also lowers capital costs by using widely available components. With a mission to decarbonize industries globally, Advanced Ionics positions itself as a leader in the green hydrogen market, aiming to produce hydrogen for less than a dollar per kilogram, making it a competitive alternative to fossil-fuel-based methods.

Construction
DeepTech
Energy
Manufacturing
Real Estate
Sustainability
11 - 50 employees

Carbon Upcycling is a waste and carbon utilization company focused on transforming industrial byproducts and natural materials into superior additives for cement and concrete. Their patented technology sequesters CO2, reduces the carbon footprint of cement, and enhances concrete performance, addressing the significant CO2 emissions from the cement industry. By utilizing local industrial waste, Carbon Upcycling not only improves product quality but also contributes to a circular economy, making them a leader in sustainable materials innovation. The company has gained recognition for its innovative approach and is positioned to play a crucial role in decarbonizing hard-to-abate industries.

Seed

Aepnus Technology catalyzes the decarbonization of industry by transforming chemical production through ultra-efficient electrolysis technologies. Their innovative approach utilizes renewable electricity to produce essential chemicals like Hydrochloric Acid, Sulfuric Acid, and Caustic Soda, enabling domestic production and reducing reliance on foreign sources. By focusing on critical mineral processing, cathode manufacturing, and battery recycling, Aepnus positions the United States as a leader in the transition to sustainable energy, enhancing national self-sufficiency and fostering a cleaner industrial landscape.

Nth Cycle
Nth Cycle
4 jobs
Consumer Products
Energy
Hardware
Manufacturing
Sustainability
51 - 200 employees
Series B

Nth Cycle is an industry leader in critical metal refining, partnering with recyclers, manufacturers, and miners to refine materials on-site using their patented Oyster system. This innovative technology recovers critical metals from end-of-life batteries, scrap metal, and mined ore, addressing the urgent need for domestic refining capabilities in the U.S. and Europe. By eliminating the need for large, centralized plants, Nth Cycle offers a modular, clean, and efficient solution that supports multiple industries and adapts to changing volumes. Their approach not only enhances supply chain resilience but also contributes to environmental sustainability, making them a key player in the clean energy transition.

Transaera
Transaera
3 jobs
Community and Lifestyle
Energy
Manufacturing
Professional Services
Sustainability
11 - 50 employees
Seed

Transaera is revolutionizing air conditioning with its advanced materials that efficiently remove moisture from the air before cooling, significantly reducing energy consumption and greenhouse gas emissions. Their innovative technology, which includes proprietary coatings and devices, works with standard AC equipment to provide scalable, affordable, and energy-efficient solutions, particularly targeting humid, tropical regions where access to air conditioning is limited. With a focus on sustainability and comfort, Transaera aims to meet the growing demand for air conditioning while minimizing environmental impact, positioning itself as a leader in the climatetech space.

Energy
Sustainability
51 - 200 employees
Series C+

Connect DER is a solar technology company focused on providing quick and affordable electrification solutions through innovative meter socket adapters. Their products enable homeowners to connect solar panels and electric vehicle chargers without the need for costly electrical upgrades, significantly reducing installation time and expenses. With over 20,000 units shipped across 22 states since their inception in 2011, Connect DER has established a strong market presence and is committed to simplifying clean energy adoption for everyone. Their UL Listed and NEC compliant products are designed to broaden access to clean energy resources, making them a valuable player in the renewable energy sector.

Energy
Sustainability
11 - 50 employees

SunDensity has developed a groundbreaking Photonic Smart Coating (PSC™) technology that enables the up and down conversion of the wavelengths in white light (UV to IR) to match the desired band which can solve several in-efficiencies in photonics. By conversion of spectrum, they have developed, and field tested a patent-pending PSC™ that significantly reduces the cost of electricity generated by solar photovoltaics (PV) applications, customizes thermal and optical behavior of architectural glass, and increases the quantum efficiency of optoelectronic instruments.

Lithios
Lithios
2 jobs
DeepTech
Energy
Manufacturing
11 - 50 employees
Seed

Lithios is a technology company focused on commercializing a novel electrochemical platform for sustainable and low-cost lithium extraction from untapped resources. Their Advanced Lithium Extraction (ALE) process significantly reduces energy requirements while increasing lithium yield, positioning them as a leader in the green tech sector. With a strong team of experts from prestigious institutions and recognition in industry publications, Lithios is poised to play a crucial role in meeting the growing demand for lithium in electric vehicles and renewable energy storage.

DeepTech
Energy
Hardware
Manufacturing
Sustainability
11 - 50 employees
Seed

Ayrton Energy is revolutionizing the energy sector by providing innovative hydrogen solutions through their Liquid Organic Hydrogen Carrier (LOHC) technology. This breakthrough technology simplifies the storage and transportation of hydrogen, making it safer and more efficient for long-distance use. As the demand for clean energy surges, Ayrton's scalable and reliable solutions position them as a key player in the transition to sustainable energy sources, aiming to democratize energy access for a more equitable world.

DeepTech
Professional Services
Sustainability
11 - 50 employees

Travertine is a technology startup focused on decarbonization and sustainable materials. Their innovative process transforms sulfate byproducts from mining and fertilizer production into carbon-negative building materials and sulfuric acid, addressing both waste management and environmental concerns. By integrating direct air capture technology, Travertine not only removes CO2 from the atmosphere but also produces green hydrogen, positioning itself as a leader in the circular economy and industrial decarbonization. With a strong team of engineers and scientists, they aim to scale their solutions to meet the demands of the largest industries while contributing to climate change mitigation.

Energy
Finance
Lending and Investments
Sustainability
11 - 50 employees

Clean Energy Ventures invests in seed-stage climate tech startups in North America, Europe, and Israel. The company's investments are commercializing disruptive clean energy technologies and business model innovations and achieving significant scale by taking advantage of market-driven forces to address climate change.