Echo River Capital

WaterSmart provides a digital engagement platform for water, gas, and electric utilities and energy retailers to modernize customer billing, engagement, and data analytics.

EnergyEnterprise SoftwareSaaSSan Francisco, US

Robin Gilthorpe(Executive Officer, Director)

BoardSteve Bennet(Director)Thomas Harvey(Director)Steve Westly(Director)inWill Rosenzweig(Director)

Board seatPeter Yolles· per SEC Form D · $7M raise · filed Apr 2015

Co-investorsThe Westly Group

The 2050 Accelerator is a six-month global accelerator program, powered by Dogpatch Labs, that pairs startups working on sustainability and climate technologies with large industry partners such as Kerry Group, ESB, and Coillte to develop pilots and scale toward commercial deployment.

CleantechClimate TechImpact & Social GoodDublin, IE

ACV Capital is a growth equity firm that invests in high-growth, technology-enabled platforms across Southeast Asia, with a focus on Indonesia's digital economy.

Sector Agnostic

Electrochemical water purifier using patent-pending technology to remove contaminants including PFOA.

Mansfield, US

Julie Bliss Mullen(Executive Officer, Director)Leanne Hersey(Founder)inPamela Lynch(Executive Officer)Orren Schneider(Executive Officer)

BoardJiten Manglani(Director)Tom Ferguson(Director)in

Co-investorsDCVC (Data Collective)HG VenturesMassVenturesThe Alchemy FundBURNT ISLAND VENTURES

Aclarity makes the Octa System, an electrochemical oxidation technology that destroys PFAS "forever chemicals" on-site by breaking carbon-fluorine bonds.

CleantechClimate TechHardware

Co-investorsBURNT ISLAND VENTURESHG VenturesMaroon Venture Partners FundMassVentures

Activate operates a fellowship program for entrepreneurial scientists who develop hard technology ventures.

Deep TechEdTechImpact & Social Good

Co-investorsAutodesk Foundation

Active Membranes develops an electro-active membrane desalination platform consisting of spiral-wound RO elements, electrical signal conditioning hardware, and smart control, aimed at lowering cost and eliminating chemicals in water treatment.

CleantechDeep TechHardwareNorthridge, US

Arian Edalat(Executive Officer, Director)Shahrouz Parson Vazan(Executive Officer)Eric Hoek(Director)

BoardBenjamin Tam(Director)Maarten ter Keurst(Director)Richard M Wolfen(Director)

Ag Startup Engine is an investment and support organization that connects early-stage agricultural startups with investors and industry partners.

AgTechIowa, US

Joel Harris(Executive Director)Colin Hurd(Co-Director)Kevin Kimle(Co-Director)

Co-investorsNext Level Ventures

Bluelab makes measurement and monitoring tools for growers, serving both commercial operations and home cultivators.

AgTechHardware

Co-investorsOriens Capital

AgMonitor is a hardware-free, machine-learning decision-support platform for growers and food processors that integrates on-farm data streams to deliver business insights, water and energy cost reduction, irrigation scheduling, and certified water reporting.

AgTechAI & Machine LearningSaaS

Co-investorsInvariantes Fund

Agnition finds, builds, and invests in early-stage agricultural technology ventures aimed at helping farmers and growers bring practical solutions to market.

AgTechClimate Tech

Co-investorsNZ Growth Capital Partners

AirMiners runs an accelerator program, a community network, and a learning course focused on carbon dioxide removal, serving founders and individuals working on atmospheric CO2 removal.

CleantechClimate TechImpact & Social Good

Co-investorsAvila

Alchemist Accelerator is a six-month accelerator program for technical founders building AI-SaaS and deeptech companies that sell to enterprises, offering coaching, mentorship, investor access, and commercialization support.

AI & Machine LearningDeep TechEnterprise SoftwareSan Francisco, US

Co-investorsSimya VC

The University of Texas at Austin is the state's flagship public university, offering undergraduate and graduate education alongside research across fields such as health care and industry.

EdTechAustin, US

Blue Startups is a Honolulu-based accelerator that runs a 12-week, mentor-driven program offering up to $250,000 in seed funding, mentorship, and investor introductions to scalable technology startups, with a founder priority on Hawaii, female, and East-West companies.

Sector AgnosticHonolulu, US

Henk Rogers(Co-founder)Maya Rogers(Co-founder)Chenoa Farnsworth(Co-founder & Managing Partner)

Builders Vision is an impact-focused investment platform associated with Lukas Walton that uses a "systems approach," directing capital toward reform-minded organizations to shift entire sectors toward more sustainable and impact-friendly outcomes.

Impact & Social GoodSector Agnostic

Lukas Walton(Founder)in

Co-investorsCirculate CapitalClean Energy Ventures

Burnt Island Ventures is a venture capital firm that invests in and supports startups building water-related technologies, with a focus on addressing water challenges tied to climate change.

CleantechClimate Tech

Co-investorsClean Energy VenturesSalica Investments

Cleantech Open is a non-profit business accelerator for early-stage clean technology startups, providing training to entrepreneurs building clean and sustainable technologies.

CleantechClimate TechImpact & Social Good

CREW is a Yale spinout that adds calcium carbonate (ground limestone) to wastewater treatment plants to intensify biological treatment, cut chemical costs, and permanently remove carbon dioxide.

CleantechClimate TechDeep TechNew Haven, US

Joachim Katchinoff(Co-founder & CEO)inNoah Planavsky(Co-Founder & Scientific Advisor)in

Co-investorsAP VenturesConnecticut InnovationsCounteract OneEmerald Technology Ventures AgSony Ventures CorporationANIMO Ventures+2 more

CRH Ventures is the corporate venture capital arm of CRH, a building materials company operating in North America and Europe.

Climate TechConstruction Tech

Life-cycle management software for wastewater treatment

Co-investorspeercheque

DigitalPaani offers a platform that manages water and wastewater treatment plants (STPs, ETPs, filtration/UF/RO systems) by using sensor data, automation, and workflow management to improve compliance, uptime, water recycling, and operating costs.

AI & Machine LearningCleantechIoT

Co-investorspeercheque

Elemental Impact is a 501(c)(3) nonprofit investor that provides catalytic capital and specialized expertise—including policy engagement, workforce development, and capital coaching—to entrepreneurs building climate technologies across energy, industry, food and agriculture, nature, water, and transportation.

CleantechClimate TechImpact & Social Good

Epic Cleantec designs, engineers, and operates onsite water recycling and reuse systems for real estate developers and building owners.

Circular EconomyCleantechPropTech

Co-investorsJ-ImpactJ-Ventures

MassChallenge is a startup accelerator that runs programs connecting founders to corporates, customers, regulators, funders, and expert mentors.

Climate TechHealthtechImpact & Social Good

Glanris produces designer biochar (Biocarbon) made from rice waste for use as a soil amendment, a filler in materials like asphalt, concrete, and drywall, and as a water and air filtration medium.

AgTechCircular EconomyCleantechClimate TechNew MaterialsMemphis, US

Anastasia Eagle(CMO & Co-Founder)Bryan M. Eagle III(CEO & Founder)Thomas W. Volinchak(Director)Andrew Forsdick(CFO (Fractional))Damian Russell(Head of Operations)Allan Daisley(Project Development)

Co-investorsCool Climate CollectiveInnova Memphis, Inc.

Gybe provides watershed-scale water quality monitoring.

CleantechClimate TechImpact & Social GoodPortland, US

Omar Zurita(Founder)

Co-investorsOne Planet GroupRockies Venture Club

Hohonu builds low-cost water level sensors that transmit real-time data on tides, flooding, and sea-level rise for coastal communities and water monitoring teams.

Climate TechGovTechHardwareIoT

Brian Glazer(Founder)Stanley Lio(Co-founder / Engineer)

Imagine H2O is a nonprofit accelerator and funding program that supports water technology startups by providing mentorship, market access, and pilot support to help them scale with utilities and corporate water users.

CleantechClimate TechImpact & Social Good

Innospark Ventures is a venture capital firm that invests in founders building Applied AI and deep technology solutions to complex problems.

AI & Machine LearningDeep Tech

Irrigreen manufactures smart in-ground sprinkler systems for residential lawns that use mapping technology to reduce water waste by up to 50% compared to traditional irrigation.

AgTechHardwareIoT

Co-investorsBURNT ISLAND VENTURESMFV PartnersTamiami AngelUlu VenturesAnorak VenturesSum Ventures

J-Ventures is a community-driven venture capital fund made up of investors, executives, and founders, describing itself as a "Capitalist Kibbutz." Based in Silicon Valley, it invests in early-stage companies and supports its portfolio through a network of GPs, serial entrepreneurs, and Fortune 500 executives.

Sector Agnostic

Co-investors2B.VCRhodium

Kairos Space Tech publishes research and experiments on hydroponic nutrient solution chemistry, examining how factors such as dissolved oxygen, pH, and oxidation-reduction potential affect fertilizer salt solubility and nutrient stability.

AgTech

A philanthropic nonprofit foundation established in honor of Susan Cohan, focused on colon cancer awareness and support for those affected by the disease in the United States.

Impact & Social GoodLutherville, US

Mana is an advisory and systems-investing firm focused on the nature economy, providing mission-aligned financing, market intelligence and research, strategic support, and capital mobilization for nature-positive businesses.

AgTechClimate TechImpact & Social Good

MassCEC (Massachusetts Clean Energy Center) is a state-affiliated organization that funds climate and clean energy innovation through grants, investments, and consulting services to help meet Massachusetts emission reduction goals.

CleantechClimate TechEnergyBoston, US

Co-investorsClean Energy Ventures

Natural Ventures is an impact-focused investment firm that backs scalable technologies with commercial traction in water and food security.

AgTechCleantechImpact & Social Good

New Climate Ventures is an early-stage venture capital firm that invests in startups focused on how energy is produced, powered, and consumed, drawing on experience in energy, commodities, climate, and finance.

Climate Tech

Co-investorsCarbon13ETCapital

Open Hydro develops technology to assess and mitigate greenhouse gas emissions from freshwater systems, including reservoir emissions, providing climate mitigation and resilience insights for hydropower utilities and water industries.

CleantechClimate TechEnergySaaS

Co-investorsCarbon13Sustainable Ventures

PAGE builds chemical monitoring hardware, including an in-line Analyzer and handheld kits, that provides real-time chemical measurements with on-device parameter calculation and a dashboard for live readings, trends, thresholds, and alerts.

Deep TechHardwareIoT

PureTerra Ventures is a specialist venture capital firm that invests globally in early-stage water technology companies developing scientific hardware or AI-driven software.

CleantechClimate TechImpact & Social Good

RareBreed Ventures is a pre-seed venture capital fund that invests in founders primarily located outside of major tech ecosystems, writing checks of up to $250K as one of the first investors.

Sector Agnostic

Reath provides a software platform for managing packaging data, including carbon calculations, material usage tracking, and cost analysis.

Circular EconomyCleantechSaaS

Sage Hill Capital is a wealth management and financial advisory firm that helps clients pursue their financial goals through an unbiased asset allocation process.

Fintech

Shower Stream offers remote monitoring of hotel showers, allowing hotel operators to detect potential issues and carry out preventative maintenance and repairs before they escalate.

HardwareIoTPropTech

Co-investorsBURNT ISLAND VENTURESNew Stack VenturesNewlin VenturesSWAN Impact NetworkTrue Wealth VenturesNorth Texas Angel Network

Solidec builds autonomous electrolyzer-based generators that use air, water, and electricity to produce essential chemicals on site and on demand, removing supply-chain, delivery, and storage burdens.

Advanced ManufacturingCleantechClimate TechNew Materials

Ryan(Co-founder & CEO)inYang(Co-founder & CTO)inHaotian(Co-founder & Chief Scientist)in

Co-investorsNew Climate VenturesNew York AngelsChevron Technology VenturesCollaborative FundEcosphere VenturesPlug and Play Ventures+1 more

MCJ Collective is a venture capital firm that invests in founders building companies in energy, climate, and industrial technology.

Co-investorsDay One VenturesMOL Switch

Sustainable Ocean Alliance supports emerging ocean leaders and startups through grants, mentorship, investment access, and community, including a year of online programming and travel to ocean conferences.

CleantechClimate TechImpact & Social Good

Daniela V. Fernandez(Founder)

SWAN Systems provides irrigation and nutrient management software that generates irrigation plans, tracks water use, monitors crop health via satellite imagery/NDVI, and aligns fertigation with crop nutrient demand.

AgTechClimate TechSaaS

Co-investorsDoon CapitalPureTerra Ventures

The Water Council is a global membership organization that connects water technology innovators, startups, corporations, utilities and universities, and runs water stewardship programs to help organizations manage water risk.

CleantechClimate TechImpact & Social GoodMilwaukee, US

Transition is a venture capital firm that backs founders building full-stack companies combining hardware, software, and frontier science in areas such as AI, energy, robotics, and climate resilience.

Climate TechDeep TechEnergy

Ulu Ventures is a seed-stage venture capital firm that finds and funds early-stage founder teams, using a data-driven investment approach with an emphasis on diversity.

Sector Agnostic

Clint Korver(Founder)inMiriam Rivera(Founder)in

Co-investors500 GlobalFarvatn VentureInvariantes FundPivotal Ventures