The Ecosystem Integrity Fund

The Ecosystem Integrity Fund is a private equity and venture capital firm based in San Francisco, with offices in Los Angeles and New York, that targets early- to late-stage investments in environmental sustainability and climate-related sectors. It backs companies and projects in clean technologies, energy, transportation, water, agriculture, building materials, waste management, habitat conservation, and related areas that advance resource efficiency and biodiversity while addressing threats to ecosystem integrity such as land fragmentation and contamination. Typical initial commitments range from about 0.5 million to 5 million dollars, with investments primarily in North America and increasingly global opportunities. The firm seeks both financial returns and measurable ESG impact by supporting scalable solutions across energy, climate resilience, and environmental remediation.

Amanda Bamberger

Vice President

Brandon Blaesser

Senior Associate

Geoffrey Eisenberg

Partner

James Everett

Managing Partner and Founder

Sasha Brown

Partner

Past deals in CleanTech

Evenergi

Series A in 2025
Evenergi is a software-as-a-service company and eMobility consultancy, driving towards a sustainable future.

Vecmocon Technologies

Series A in 2024
Vecmocon Technologies specializes in developing intelligent components for electric vehicles (EVs), focusing on clean mobility. The company designs and engineers key EV systems such as battery management, motor control, vehicle intelligence modules, and chargers, ensuring its products meet industry standards and comply with government regulations.

ZeroAvia

Series C in 2024
Founded in 2017, ZeroAvia develops zero-emission aircraft propulsion systems designed to eliminate aviation emissions while maintaining operational efficiency. The company focuses on scalable hydrogen-electric technologies that can retrofit existing aircraft and support sustainable aviation.

Battery Smart

Series B in 2024
Battery Smart is an electric vehicle (EV) battery-swapping network based in Delhi, India, founded in 2019. The company focuses on providing advanced lithium-ion batteries specifically designed for electric two-wheelers and three-wheelers. Its innovative retrofittable 48V lithium-ion twin battery system is compatible with various electric rickshaw and two-wheeler models. Battery Smart's fully interoperable battery-swapping solution allows EV drivers to efficiently swap their batteries in just two minutes, alleviating concerns related to range anxiety, charging downtime, and the recurring costs of battery replacements. By offering a practical and quick solution for battery management, Battery Smart aims to enhance the convenience and accessibility of electric mobility in India.

Battery Smart

Series B in 2024
Battery Smart is an electric vehicle (EV) battery-swapping network based in Delhi, India, founded in 2019. The company focuses on providing advanced lithium-ion batteries specifically designed for electric two-wheelers and three-wheelers. Its innovative retrofittable 48V lithium-ion twin battery system is compatible with various electric rickshaw and two-wheeler models. Battery Smart's fully interoperable battery-swapping solution allows EV drivers to efficiently swap their batteries in just two minutes, alleviating concerns related to range anxiety, charging downtime, and the recurring costs of battery replacements. By offering a practical and quick solution for battery management, Battery Smart aims to enhance the convenience and accessibility of electric mobility in India.

Ampersand

Venture Round in 2024
Ampersand is a company based in Kigali, Rwanda, that specializes in the manufacture of affordable electric vehicles and charging systems tailored for the three million motorcycle taxi drivers in East Africa. The company aims to enhance mass-market electric mobility by providing a battery swap network and an operating system that facilitates sustainable transport solutions. By making electric mobility accessible and affordable, Ampersand not only improves the livelihoods of drivers but also contributes to environmental sustainability. As of January 2024, the company's customer base has expanded to 2,000 users, who collectively cover 1.5 million kilometers weekly in Nairobi and Kigali.

Ampersand

Venture Round in 2023
Ampersand is a company based in Kigali, Rwanda, that specializes in the manufacture of affordable electric vehicles and charging systems tailored for the three million motorcycle taxi drivers in East Africa. The company aims to enhance mass-market electric mobility by providing a battery swap network and an operating system that facilitates sustainable transport solutions. By making electric mobility accessible and affordable, Ampersand not only improves the livelihoods of drivers but also contributes to environmental sustainability. As of January 2024, the company's customer base has expanded to 2,000 users, who collectively cover 1.5 million kilometers weekly in Nairobi and Kigali.

Claros Technologies

Venture Round in 2023
Claros Technologies is an advanced materials company that develops safe and sustainable products with zero toxic waste. It strives to lead the industry towards a holistic approach to materials design and innovation. It was founded in 2018 and is based in St Paul, Minnesota.

Vibrant Planet

Series A in 2023
Vibrant Planet is a company focused on enhancing land management through innovative technology solutions aimed at accelerating land restoration efforts. Founded in 2004 by Allison Wolff and headquartered in Incline Village, Nevada, the company develops a cloud-based planning and monitoring tool that assists communities and ecosystems in adapting to climate change. By collaborating with scientists, land management professionals, and policymakers, Vibrant Planet creates a platform that facilitates collaborative planning and informed decision-making. Their technology is designed to help save lives, prevent infrastructure loss, and restore natural systems that provide essential services such as carbon storage, clean water, and biodiversity support, ultimately fostering a more resilient and equitable future for society.

ZeroAvia

Series C in 2023
Founded in 2017, ZeroAvia develops zero-emission aircraft propulsion systems designed to eliminate aviation emissions while maintaining operational efficiency. The company focuses on scalable hydrogen-electric technologies that can retrofit existing aircraft and support sustainable aviation.

Battery Smart

Series B in 2023
Battery Smart is an electric vehicle (EV) battery-swapping network based in Delhi, India, founded in 2019. The company focuses on providing advanced lithium-ion batteries specifically designed for electric two-wheelers and three-wheelers. Its innovative retrofittable 48V lithium-ion twin battery system is compatible with various electric rickshaw and two-wheeler models. Battery Smart's fully interoperable battery-swapping solution allows EV drivers to efficiently swap their batteries in just two minutes, alleviating concerns related to range anxiety, charging downtime, and the recurring costs of battery replacements. By offering a practical and quick solution for battery management, Battery Smart aims to enhance the convenience and accessibility of electric mobility in India.

Unagi Scooters

Series B in 2023
Unagi Scooters is an electric scooter manufacturer focused on providing innovative transportation solutions aimed at alleviating the challenges of urban commuting. The company designs high-performance electric scooters that are both eco-friendly and efficient, allowing users to navigate long distances on a single charge. Unagi's scooters are engineered to handle hilly terrains and deliver a smooth ride over uneven surfaces, offering a reliable alternative to conventional transportation methods. Through its products, Unagi seeks to enhance mobility while helping users save time and reduce costs associated with commuting, ultimately promoting a more sustainable mode of transport.

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.

Shoreline

Venture Round in 2022
Shoreline AS is a data analytics and simulation software development and consulting company focused on the offshore wind industry. Founded in 2014 and based in Stavanger, Norway, the company offers innovative solutions that facilitate the planning, optimization, and analysis of energy production facilities. Its products, including MAINTSYS and SIMSTALL, provide subscription-based services geared towards the operational and maintenance aspects of offshore wind farms, covering logistics, installation, commissioning, and testing. Additionally, Shoreline AS delivers consultancy services throughout the entire life cycle of offshore wind projects, assisting developers, energy companies, and other stakeholders from initial assessments to decommissioning. With a strong emphasis on proprietary simulation and optimization algorithms, Shoreline aims to enhance efficiency and reduce risks and costs associated with renewable energy projects.

Vibrant Planet

Seed Round in 2022
Vibrant Planet is a company focused on enhancing land management through innovative technology solutions aimed at accelerating land restoration efforts. Founded in 2004 by Allison Wolff and headquartered in Incline Village, Nevada, the company develops a cloud-based planning and monitoring tool that assists communities and ecosystems in adapting to climate change. By collaborating with scientists, land management professionals, and policymakers, Vibrant Planet creates a platform that facilitates collaborative planning and informed decision-making. Their technology is designed to help save lives, prevent infrastructure loss, and restore natural systems that provide essential services such as carbon storage, clean water, and biodiversity support, ultimately fostering a more resilient and equitable future for society.

Ampersand

Venture Round in 2021
Ampersand is a company based in Kigali, Rwanda, that specializes in the manufacture of affordable electric vehicles and charging systems tailored for the three million motorcycle taxi drivers in East Africa. The company aims to enhance mass-market electric mobility by providing a battery swap network and an operating system that facilitates sustainable transport solutions. By making electric mobility accessible and affordable, Ampersand not only improves the livelihoods of drivers but also contributes to environmental sustainability. As of January 2024, the company's customer base has expanded to 2,000 users, who collectively cover 1.5 million kilometers weekly in Nairobi and Kigali.

ZeroAvia

Series A in 2021
Founded in 2017, ZeroAvia develops zero-emission aircraft propulsion systems designed to eliminate aviation emissions while maintaining operational efficiency. The company focuses on scalable hydrogen-electric technologies that can retrofit existing aircraft and support sustainable aviation.

Unagi Scooters

Series A in 2021
Unagi Scooters is an electric scooter manufacturer focused on providing innovative transportation solutions aimed at alleviating the challenges of urban commuting. The company designs high-performance electric scooters that are both eco-friendly and efficient, allowing users to navigate long distances on a single charge. Unagi's scooters are engineered to handle hilly terrains and deliver a smooth ride over uneven surfaces, offering a reliable alternative to conventional transportation methods. Through its products, Unagi seeks to enhance mobility while helping users save time and reduce costs associated with commuting, ultimately promoting a more sustainable mode of transport.

ZeroAvia

Series A in 2020
Founded in 2017, ZeroAvia develops zero-emission aircraft propulsion systems designed to eliminate aviation emissions while maintaining operational efficiency. The company focuses on scalable hydrogen-electric technologies that can retrofit existing aircraft and support sustainable aviation.

Energicity

Seed Round in 2020
Energicity is a company that specializes in the development and operation of solar-powered community-scale micro-grids. Founded in 2015 by Nicole Poindexter, the company is dedicated to providing affordable and reliable electricity to rural and off-grid communities. Energicity's solar power solutions are designed to be scalable, catering to the electricity needs of both households and businesses. By enabling access to electricity, Energicity empowers individuals and communities to engage in commercial activities, fostering economic growth and improving overall quality of life in underserved areas.

Complete Solar

Venture Round in 2019
Founded in 2010, Complete Solar specializes in designing, installing, and retailing residential solar power systems. It offers HelioQuote, a software platform providing solar solutions, system design, and financial services to homeowners.

Sunverge Energy

Series D in 2019
Sunverge Energy develops and operates a cloud-based platform for the aggregation and management of distributed energy resources, enabling co-optimization of generation, storage, and load. Its Sunverge Solar Integration System (SIS) and SISport load management software distribute renewable energy generation and storage and shape residential peak load. The company serves homeowners, small and medium-sized businesses, utilities, and electricity regulators. Founded in 2010, Sunverge is based in San Francisco, California, with an office in Fortitude Valley, Australia. It has strategic alliances with LG Electronics and collaborates with Eaton to advance distributed energy resources. Sunverge aims to make renewable power reliable, economical, and accessible by aligning services across the energy value chain, helping customers manage infrastructure investments, lower generation costs, increase system reliability, and meet renewable energy goals.

Pegasus Solar

Series A in 2018
Founded in 2012, Pegasus Solar specializes in designing and manufacturing innovative rooftop mounting systems for global solar markets. Its flagship product, LightSpeed Mount Residential, is a revolutionary rail-less system that simplifies solar installations, reduces labor costs, and improves reliability.

LumiGrow

Series C in 2018
LumiGrow, Inc. specializes in developing innovative horticultural LED lighting solutions aimed at enhancing plant growth and improving agricultural yields. Founded in 2008 and based in Emeryville, California, the company offers a range of products including LED grow lights and a smartPAR wireless control system, which allows users to manage lighting schedules, monitor energy usage, and control multiple growing zones via smartphones, tablets, or computers. LumiGrow's products are utilized in various commercial applications, including floriculture, propagation, breeding, and the cultivation of leafy greens, vine crops, and cannabis. The company serves a diverse clientele, including agribusinesses, produce and flower growers, garden centers, and academic institutions, providing them with the technology to achieve high-quality crops, increased yields, and operational efficiencies. Over the years, many leading horticulture and research institutions have adopted LumiGrow's lighting solutions, replacing traditional HID lighting with its advanced systems, resulting in significant improvements in crop performance.

Pegasus Solar

Series A in 2017
Founded in 2012, Pegasus Solar specializes in designing and manufacturing innovative rooftop mounting systems for global solar markets. Its flagship product, LightSpeed Mount Residential, is a revolutionary rail-less system that simplifies solar installations, reduces labor costs, and improves reliability.

OptiRTC

Series B in 2017
OptiRTC is a technology company that delivers a cloud‑based SaaS platform for real‑time monitoring and active control of stormwater infrastructure. Its suite of products—Opti, OptiNimbus, OptiStratus, and OptiCumulus—combines on‑site sensor data, weather forecasts, and proprietary algorithms to optimize the rate and timing of stormwater flows, support predictive maintenance, and enable adaptive management of green and conventional systems. The platform helps municipalities, private landowners, and corporations reduce operating and capital costs, achieve Clean Water Act compliance, and mitigate risks from volatile environmental conditions. Founded in 2014 and headquartered in Boston, OptiRTC offers solutions for combined sewer overflow reduction, rainwater harvesting, hydromodification, water quality improvement, stormwater credit markets, and related research and performance analytics.

LumiGrow

Series B in 2015
LumiGrow, Inc. specializes in developing innovative horticultural LED lighting solutions aimed at enhancing plant growth and improving agricultural yields. Founded in 2008 and based in Emeryville, California, the company offers a range of products including LED grow lights and a smartPAR wireless control system, which allows users to manage lighting schedules, monitor energy usage, and control multiple growing zones via smartphones, tablets, or computers. LumiGrow's products are utilized in various commercial applications, including floriculture, propagation, breeding, and the cultivation of leafy greens, vine crops, and cannabis. The company serves a diverse clientele, including agribusinesses, produce and flower growers, garden centers, and academic institutions, providing them with the technology to achieve high-quality crops, increased yields, and operational efficiencies. Over the years, many leading horticulture and research institutions have adopted LumiGrow's lighting solutions, replacing traditional HID lighting with its advanced systems, resulting in significant improvements in crop performance.

OneEnergy Renewables

Series B in 2014
OneEnergy Renewables is an independent developer of utility-scale solar energy projects based in Seattle, Washington. It focuses on middle-market solar developments, providing siting, leasing, and regulatory approvals as part of the development process, and offers pre-construction development services for ground-mounted PV projects. The company designs and builds community solar arrays that enable customers to receive credits on electric bills through local utilities. Its client base includes communities, utilities, and commercial and institutional customers, and it supports advanced energy procurement and market expertise through its solar deployments.

Complete Solar

Venture Round in 2014
Founded in 2010, Complete Solar specializes in designing, installing, and retailing residential solar power systems. It offers HelioQuote, a software platform providing solar solutions, system design, and financial services to homeowners.

Zep Solar

Series A in 2013
Zep Solar, Inc. is a manufacturer based in San Rafael, California, specializing in innovative photovoltaic (PV) mounting technology. The company is known for its patented Zep Groove PV module frame technology, which, along with its catalog of mounting and grounding hardware, facilitates the integration of PV systems. By streamlining the design, shipping, warehousing, and installation processes, Zep Solar aims to significantly reduce the costs associated with solar technology adoption. Its products are engineered to enhance the efficiency of PV system installations, making solar energy more accessible and cost-effective.
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