Echo River Capital invests globally in early stage water technology companies to Digitize, Decarbonize and Decentralize the water cycle. Our vision for the future is living in freshwater harmony with nature, made easier through technology. Echo River is among the few investors with a narrow specialty in smart water technology solving global water challenges for human health, environment, and climate resilience.

Burnt Island Ventures is an early-stage venture capital firm based in New York that identifies, funds, and supports founders building technology-driven companies. The firm focuses on energy, information technology, clean technology, climate technology, and water-related startups, with an emphasis on B2B and technology-enabled products and services across industrial and consumer applications. Since its founding in 2020, Burnt Island Ventures has positioned itself as a specialized investor that works closely with founders to accelerate product development, market validation, and growth.

Emerald Technology Ventures is a Switzerland-based venture capital firm founded in 2000 that concentrates on clean technology and industrial technology. It backs early through expansion-stage companies worldwide, with emphasis on energy, water, materials, and related fields such as industrial information technology, mobility and urbanisation, and packaging. The firm supports market-ready technologies with strong growth potential, helping portfolio companies scale to global markets and pursue strategic exits within a few years. While its geographic focus spans Europe, North America, and other regions, Emerald seeks opportunities that advance sustainability and efficiency across sectors such as energy generation and storage, water treatment, waste recycling, and advanced materials.

Founded in 1995, SOSV is a global venture capital firm headquartered in New Jersey. It focuses on seed-to-growth stage investments in deep tech innovations, primarily in bio-tech/life sciences and hardware/robotics sectors, with a commitment to human and planetary health.

Chalmers Ventures is a Swedish venture capital firm based in Gothenburg that supports technology-driven companies through coaching, financing and business development. The firm invests across seed, early, and growth stages in Sweden, with programs that include incubation, startup camps and accelerator activities as well as a technology transfer program. It focuses on companies connected to the Gothenburg region and Sweden operating in information technology, communications, new materials, green tech, health tech and biotechnology, and seeks innovative ventures with growth potential. The firm typically makes minority investments and uses a staged funding approach, providing capital through various program phases and through balance sheet investments. It partners with ventures that participate in its programs, helping them advance from explore to scalable stages and achieve commercial success.

Established in 2001, Sustainable Development Technology Canada (SDTC) is a Canadian organization that funds and supports innovative cleantech projects. It focuses on moving groundbreaking technologies to market, creating jobs, driving economic growth, and promoting environmental benefits. SDTC operates independently but collaborates with various stakeholders from private industry, academia, and governments.

Mazarine Ventures is a technology investment firm based in Chicago, Illinois, focused on generating social and environmental impact through early-stage investments. The firm specifically seeks out young companies that offer innovative solutions to improve efficiencies and address water and wastewater-related risks. Mazarine Ventures is particularly interested in founders who are proactive and dedicated to tackling challenges associated with public health, environmental protection, business continuity, and climate change. The firm invests in various sectors, including communications, networking, diagnostic equipment, biotechnology, water utilities, and software, targeting companies with revenue of around one million dollars. Through its investments, Mazarine Ventures aims to support ventures that contribute positively to society and the environment.

XPV Water Partners, established in 2006, is a Toronto-based impact investment firm focused on the water sector. Comprising experienced water entrepreneurs, operators, and investment professionals, the firm invests in water and utility enterprises across North America, Europe, the Middle East, and Asia, aiming to make a positive difference in the water industry.

UNIIQ is an investment fund based in The Hague, Netherlands, with a focus on the proof-of-concept phase. Established in 2016, it manages a fund of €22 million aimed at supporting entrepreneurs in South Holland in bringing their unique innovations to market. UNIIQ provides essential start-up capital to help bridge the most critical phase of transforming ideas into promising businesses. By collaborating closely with knowledge institutions and incubators, UNIIQ actively aids entrepreneurs in their strategic development. The investments made by UNIIQ are utilized for validating innovations and business concepts, with the ultimate goal of facilitating the transition to further financing. The fund emphasizes a straightforward process with favorable conditions for entrepreneurs, ensuring they can effectively move forward with their projects.

Established in 2020, the European Innovation Council supports innovative startups and researchers with promising ideas, focusing on early-stage companies with positive environmental, social, or governance impacts. It co-invests alongside private investors.

Serra Ventures is a venture capital firm based in Champaign, Illinois, that invests in technology companies across the United States and select international locations. The firm concentrates on early-stage and growth opportunities in information technology, deep technology, instrumentation, software as a service, devices, B2B, and agricultural technologies, with a focus on the Midwest and West Coast regions. Serra Ventures supports portfolio companies through strategic guidance, networks, and resources to help scale technology-enabled businesses.

HG Ventures is the venture capital arm of The Heritage Group, headquartered in Indianapolis, Indiana. It funds and partners with early-stage and growth-stage companies developing advanced materials and systems for transportation, infrastructure, environmental services, and specialty chemicals, including digital solutions relevant to these industries. The firm emphasizes United States opportunities and leverages The Heritage Group's operating companies and research center to provide portfolio companies with industry expertise, commercial networks, and technical capabilities. HG Ventures pursues a value-add approach by supporting companies through strategic collaboration and scaling their technologies, often investing in collaborations that align with the Heritage Group's core businesses.

Founded in 2016, Rainmatter Capital is a venture capital firm headquartered in Bangalore, India. It focuses on investing in innovative Indian startups operating in the fintech sector.

MassVentures is a venture capital firm based in Waltham, Massachusetts, established in 1978 as a quasi-public corporation by the Massachusetts Legislature. The firm focuses on providing seed and early-stage funding to high-growth startups, facilitating their transition from concept to commercialization. MassVentures invests primarily in sectors such as information technology, healthcare, cybersecurity, e-commerce, mobile, manufacturing, and robotics. With a governance structure that includes an independent Board of Directors and management by experienced venture capitalists, MassVentures leverages the state's entrepreneurial spirit and innovation centers to support the Massachusetts innovation economy. The firm also offers accelerator programs to further assist emerging companies in their growth journey.

SDIC Innovation Investment Management Co., Ltd. is a private equity and venture capital arm of State Development & Investment Corp., Ltd. The firm seeks to invest mobile internet, internet of things, cloud computing, big data and information technology services, intelligent robots focusing on intelligent manufacturing industry chain, industrial robotics, electric vehicles, new energy vehicles, intelligent vehicles, high-end medical equipments and medication, high value consumables, in vitro diagnostic devices, modern agricultural equipments, high-end ships, marine engineering, rail transport equipments, new materials, clean energy, energy conservation, environmental protection, financial services, advanced manufacturing technology, industrial internet, technology, media and technology and healthcare sectors. For new energy vehicles, the firm seeks to focus on intelligent upstream and downstream industry chain, power batteries and power systems, and advanced technology supply chain. For advanced manufacturing, it prefers to focus on medicine and health. SDIC Innovation Investment Management Co., Ltd. was founded in July 2009 and is based in Beijing, China with an additional office in Asia.

Founded in 2006, Pacific Channel is New Zealand's leading venture creation and investment firm focused on start-up and early-stage life-science and clean-tech innovations. Through expertise, seed funds, and access to external capital, they create, build, and fund companies to develop products/services for global markets.

A London-based venture capital firm focused on the water sector, including water technology and water infrastructure, investing in private companies and publicly listed entities worldwide. Founded in 2009, Apsara Capital is a member of the British Venture Capital Association.

Founded in 2013, Third Sphere is a venture capital firm based in Brooklyn, New York. It focuses on investing in early-stage climate action companies, with a track record of over 100 portfolio companies that unlock greenhouse gas reductions and resilience through innovative strategies.

IP Group is a London-based corporate firm that provides financial, strategic, and commercial expertise to clients internationally. Founded in 2001, the company focuses on creating value through the commercialisation of intellectual property derived from research-intensive institutions. It manages the end-to-end process of identifying viable IP, developing or partnering to build value, and establishing commercial arrangements that translate scientific advances into practical products and businesses. IP Group combines industry insight and financial experience to support science- and technology-based ventures, offering capital as well as strategic guidance to help companies grow and accelerate the impact of research. Its work spans clean technology, life sciences, and other deep technology sectors, with a track record of backing and developing ventures that aim to deliver tangible societal and economic outcomes.

Climate Adaptive Infrastructure is an infrastructure investment firm that specializes in low-carbon real assets across energy, water, and transport sectors. The firm targets projects that reduce emissions and advance sustainable infrastructure, providing capital and expertise to accelerate the deployment of climate-resilient assets globally.

De.mem designs, builds, owns, and operates decentralized water and wastewater treatment systems for industrial, municipal, and residential sectors. It offers a range of treatment processes including disinfection, biological treatments, chemical dosing, membrane filtration, and specialized treatments. The company provides solutions such as potable water supply, sewage treatment, industrial waste water recycling, desalination, and process water treatment. De.mem serves mining, electronics, chemicals, oil and gas, and food and beverage industries across Australia, Singapore, and Germany.

Ben Franklin Technology Partners of Southeastern Pennsylvania is a technology-focused capital provider based in Philadelphia, founded in 1982 to advance the region's technology community. The organization funds and supports technology companies across Pennsylvania, especially in information technology, health, and physical sciences, investing substantial capital in early-stage and established ventures. It has invested over 170 million dollars in more than 1,750 regional technology companies and has launched university-industry partnerships to translate scientific discoveries into commercial products, while seeding regional initiatives that strengthen the entrepreneurial ecosystem and create jobs.

K1W1, established in 1999, is a family office based in Auckland, New Zealand. It specializes in providing early and later-stage venture capital investments to startups and businesses within New Zealand.

KAUST Innovation Ventures is a venture capital firm established in 2010 and located in Thuwal, Saudi Arabia. The firm focuses on fostering the emerging Saudi technology ecosystem by making seed and early-stage investments in high-tech startups across various sectors, including energy and environment, food and water, advanced materials, robotics, information and communications technology, and healthcare. By acting as a long-term strategic partner, KAUST Innovation Ventures supports its portfolio companies through mentorship and acceleration programs offered by its Entrepreneurship Center. The firm aims to cultivate an innovation-driven investment community and attract both local and international investors to contribute to the growth of innovative technologies in the region.

Founded in 2010, EIT InnoEnergy is a leading European innovation engine focused on Sustainable Energy. It invests in early-stage climate tech and energy companies across Europe and the US, providing equity minority investments and added value services to de-risk projects.

SFC Capital is a United Kingdom based venture capital firm founded in 2012 that focuses on early-stage investments, including pre-seed and seed rounds, in sectors such as software, technology, e-commerce, consumer products, enterprise solutions, green technology, medical technology, and hospitality. It backs UK startups through an Angel Network and seed funds, providing capital and guidance and offering access to SEIS- and EIS-qualifying investment opportunities. The firm is described as a leading seed investor in the UK.

Established in 2017 and headquartered in Amsterdam, PureTerra Ventures is an investment firm specializing in growth-stage companies focused on disruptive water technologies and related sectors.

Founded in 2014, The Yield Lab is a global venture capital firm focused on early-stage investments in AgriFood Tech. It invests in innovative technologies across crops, animal health, digital agriculture, logistics, and food ingredients, with initial investments ranging from $100,000 to $1.5 million.

Founded in 2018, 2048 Ventures is a thesis-driven venture capital firm based in Princeton, New Jersey. The firm invests in early-stage technology startups across the United States and Canada, focusing on sectors such as artificial intelligence, biotechnology, health tech, robotics, and emerging technologies.

Founded in 2010, SVG Ventures is a venture capital firm based in Silicon Valley. It focuses on investing in early-stage technology companies operating within the agrifood, supply chain, sustainability, and climate sectors.

Nucleus Capital is a Berlin-based venture capital firm founded in 2020 that focuses on supporting purpose-driven entrepreneurs. The firm is dedicated to addressing global challenges related to human and planetary health through entrepreneurial innovation. Nucleus Capital specializes in pre-seed and seed-stage investments, targeting companies in the fields of synthetic and computational biology, food technology, and climate technology. By partnering with founders at the early stages of their ventures, Nucleus Capital aims to foster innovative solutions that contribute to a sustainable future.

Founded in 2010, Région Sud Investissement is a venture capital firm based in Marseille, France. It provides venture capital investments, participatory loans, and convertible loans to startups across France with a focus on the South Region.

Founded in 2015 and headquartered in Tokyo, Japan, Universal Materials Incubator is a venture capital firm specializing in investments within the materials, chemical, pharmaceuticals, biotechnology, life sciences, and manufacturing sectors.

Ulu Ventures is a Palo Alto, California-based seed and early-stage venture capital firm that backs technology-driven startups across the United States. Founded in 2008, it focuses on internet-enabled consumer and business services and a broad range of sectors including EdTech, FinTech, healthcare, sustainability, enterprise IT, SaaS, IoT, digital media, mobile, agtech, and marketplaces. The firm emphasizes backing diverse entrepreneurial teams and typically engages in co-investments with other investors to pursue meaningful exits. It is described as the first Latina-led venture fund in Silicon Valley and is among the larger seed-focused vehicles in the region.

Founded in 1953, BDC Capital is a Canadian investment firm specializing in growth and expansion financing. It focuses on information technology, technology, energy, cleantech, and healthcare sectors across Canada.

Slater Technology Fund is a venture capital firm based in Providence, Rhode Island, founded in 1997. The firm specializes in early-stage investments, focusing on sectors such as life sciences, biomedical technology, information technology, and clean energy. Within these sectors, it targets software, internet, digital media, and alternative energy resources. Slater Technology Fund primarily invests in companies at their inception stage, often leveraging ideas and technologies emerging from local academic institutions and government research laboratories. The firm typically invests up to $0.75 million per transaction and up to $3 million annually, with the potential for follow-on financing from venture capital investors or strategic partners. Its mission includes fostering the development of high-value, high-wage jobs in the region.

SAIL Capital Partners LLC is a venture capital and private equity firm established in 2002 and based in Newport Beach, California. Founded by Walter Schindler, the firm focuses on investing in companies that address critical challenges related to global natural resources, particularly in the energy, water, and environmental sectors. Its investment portfolio includes companies such as The Cleantech Group, Xtreme Power, and WaterHealth International, among others. SAIL Capital Partners emphasizes innovative technologies across various industries, including environmental science, agriculture, and manufacturing, aiming to contribute to sustainable solutions while generating financial returns.

Founded in 2011, DCVC is a venture capital firm based in Palo Alto, California. The firm invests in early-stage companies utilizing deep tech to solve complex problems across sectors such as artificial intelligence, exascale computing, climate, engineering, materials science, robotics, space, water, biology, defense, and security.

Gaon Agro Industries Ltd is an agriculture-focused company that operates Aquagro Fund, its venture capital arm. Through this arm, the company invests across incubation to late-stage startups in water and agriculture technologies and related clean technologies, including renewable energy, water treatment, irrigation management, fertigation, and water recycling. It backs innovations in agro-biotech, seed development, greenhouse and post-harvest technologies, and sustainable food production, with a preference for early revenue and profitability paths. The fund typically takes minority stakes and focuses on Israel and North America, prioritizing founder-owned or lightly funded ventures. Based in Tel Aviv, Israel, Gaon Agro aims to support companies that improve resource efficiency and reduce ecological impact. Founded in 2008.

Established in 2018, MTG Ventures is a venture capital arm of MTG Japan, headquartered in Nagoya City. It focuses on investing in beauty and wellness technology, food technology, and sports technology sectors.

YFM Equity Partners is an independent private equity and venture capital firm that provides growth capital, recapitalizations, development funding, and management buyouts for small and medium-sized enterprises in the United Kingdom and the United States. The firm targets growth-oriented companies across sectors such as energy, materials, manufacturing, consumer brands, healthcare, technology, information technology, software and services, financials, business services, retail, and telecommunications, with a preference for firms with proprietary technology or data capabilities. It typically invests in growth capital and management buyouts, deploying multi-million pound equity (examples include roughly £2–£6 million for growth deals and £3–£10 million for buyouts), often takes a board seat, and aims to hold a majority stake. YFM seeks to exit holdings within about five years through sale or listing. Founded in 1982 and headquartered in Leeds, the firm maintains offices in London, Manchester, Sheffield, and other UK cities to access regional opportunities and oversee cross-border investments.

Sparkbox Ventures is a New Zealand-based venture capital firm, founded in 2001 and based in Auckland, focusing on seed and early-stage investments in technology sectors, including software, biotechnology, and renewable technologies, with activity across the Asia-Pacific region and interest in consumer goods.

Founded in 2009, Tamiami Angel Fund is a Florida-based investment firm specializing in seed and early-stage investments. It focuses on companies based in the United States, with a preference for those located in Florida and Southwest Florida.

Founded in 2015, 1517 Fund is a venture capital firm based in Telluride, Colorado. It supports early-stage technology startups with pre-seed and seed funding, focusing on individuals passionate about creating new technologies outside traditional academic paths.

Founded in 2013, Axeleo is a venture capital firm based in Lyon, France. It focuses on investing in early-stage B2B software and Greentech startups, providing equity investments from seed to Series B stages alongside operational guidance and strategic assistance.

StartGreen Capital is a venture capital firm and project finance investor based in Amsterdam, Netherlands. It funds early- to expansion-stage cleantech and sustainable energy ventures, with a focus on water technologies, energy generation, storage, and distribution, as well as related resources. The firm provides equity and debt solutions, including loans and crowdfunding, and participates in project financing alongside venture investments. It supports entrepreneurs who aim to scale innovative technologies and services addressing environmental and societal challenges, pursuing profitable returns to sustain long-term impact. StartGreen Capital remains actively involved through market knowledge, networks, and advisory support to help portfolio companies succeed and advance sustainable solutions in the Dutch clean tech sector and beyond.

Westwater Resources is a company focused on developing energy-related materials, including battery-grade graphite and uranium projects. It advances battery materials through its Coosa Graphite Project and Coosa Graphite Mine in Alabama and holds lithium-bearing mineral properties in Nevada and Utah, with expansion following the acquisition of AGC. The company also develops uranium projects in Texas, New Mexico and the Republic of Turkey, reflecting diversification into energy minerals and related mining activities.

UM6P Ventures is a venture capital firm established in 2019, investing in innovative startups focused on agriculture, chemical, greentech, healthtech, and digital factories sectors across Africa.

McRock Capital is a Toronto-based investment firm focused on growth capital and late-stage opportunities in intelligent infrastructure and industrial technology. It targets industrial and digital markets by backing companies offering IIoT software, sensor-enabled hardware, and integrated solutions across sectors such as power, water, oil and gas, transportation, and building efficiency. The firm seeks ventures at the intersection of sensors and software that enable grid automation, digital oilfields, advanced manufacturing, and smart city applications, with a preference for scalable businesses serving large industrial markets. Founded in 2012 by Scott McDonald and Whitney Rockley, McRock Capital operates from Toronto with an additional office in Calgary and pursues investments across the United States, Canada, Europe, and Israel.

Investir&+ SAS is a venture capital firm based in Paris, France, established in 2005. The firm specializes in investing in early-stage and growth-stage socially conscious companies across various sectors, including housing, water, energy, employment, health, and sustainable agriculture. Investir&+ focuses on companies that have been operational for at least 12 to 18 months and typically invests between €0.3 million and €1 million per investment, with a maximum total investment of €2 million in a single enterprise. The target enterprise value for investments ranges from €0.7 million to €5 million. The firm aims to hold its investments for five to seven years and seeks board representation in its portfolio companies. Committed to the common good, Investir&+ strives to make a positive social and environmental impact through its investment activities.