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Series B
Series B
12 impact funders on Causeartist invest at the series b stage. Use this archive to find aligned capital for series b rounds, compare check sizes, and review sector and geography focus across active investors.
Related funder lists
Series B · AI & Technology
Series B · Built Environment
Series B · Clean Energy
Series B · Climate Tech
Series B · Environment & Conservation
Series B · Impact Finance
Series B · Sustainable Food & Agriculture
Antler
Accelerator, Venture Capital
Antler is a global early-stage venture firm and company builder that invests at day zero, often before founders have a cofounder, product, or fully formed idea. Founded in Singapore in 2017 by Magnus Grimeland and Fridtjof Berge, Antler runs founder residencies across dozens of cities, matching teams, validating ideas, and writing the first check so ambitious operators can start companies that might not otherwise exist.
AI & Technology
Climate Tech
Impact Finance
Astanor Ventures
Venture Capital
Astanor Ventures is an impact investor that transforms the agrifood system by fostering innovation from "soil and sea to gut." They operate two complementary investment strategies - Astanor Venture for early-stage companies and Astanor Growth for scaling businesses across the entire agrifood value chain. Their mission centers on building a more resilient planet by investing at the intersection of planetary and human health, using food and agricultural systems as primary levers for change. They support ambitious entrepreneurs developing globally scalable solutions capable of driving systemic change, reconnecting planetary and human health through better nutrition and sustainable farming practices. As a global leader in impact investing, Astanor plays a crucial role in financing and scaling systemic disruption needed to reach ambitious targets set by the Paris Agreement and UN SDGs. With offices across Europe and the US, they demonstrate that there is no trade-off between return and impact - the more successful their portfolio businesses become, the greater the positive impact on both people and the planet.
Climate Tech
Impact Finance
Sustainable Food & Agriculture
Circulate Capital
Impact Fund
Circulate Capital is a leading impact investment firm dedicated to accelerating the circular economy in high-growth markets. The firm invests in companies building resilient circular supply chains, with an initial focus on plastics and expanding into broader circular economy solutions. By partnering with multinational corporations, institutional investors, development finance institutions, and entrepreneurs, Circulate Capital finances businesses that reduce waste, increase recycling infrastructure, improve resource efficiency, and generate measurable environmental and social outcomes alongside competitive financial returns.
Built Environment
Circular Economy
Water & Oceans
Collaborative Fund
Venture Capital
Collaborative Fund is a leading venture capital firm established in 2010 that backs entrepreneurs pushing the world forward. The fund operates at the intersection of for-profit and for-good, supporting companies across five main sectors: Consumer, AI, Money, Health, and Energy. Their portfolio includes notable companies like Lyft, Reddit, Sweetgreen, Impossible Foods, and Commonwealth Fusion Systems. The firm focuses on identifying and supporting businesses that combine financial returns with positive social and environmental impact, investing in category-defining brands and transformative technologies that address major challenges facing society.
Circular Economy
Climate Tech
Health & Wellness
Energy Impact Partners
Impact Fund
Energy Impact Partners is a global investment platform that brings together entrepreneurs, institutional investors, and leading energy, industrial, and infrastructure companies to accelerate the transition toward a cleaner, more resilient economy. The firm invests in innovative companies developing technologies across energy, climate, electrification, infrastructure, cybersecurity, mobility, and industrial transformation. Energy Impact Partners leverages its extensive network of strategic corporate partners to help portfolio companies scale faster, secure customers, validate products, and drive real-world deployment of transformative technologies.
Built Environment
Clean Energy
Climate Tech
Entrepreneurs First
Accelerator
Entrepreneurs First (EF) is a global talent investor and accelerator that builds companies from exceptional individuals, often before they have a cofounder or idea. Founded in 2011 in London by Matt Clifford and Alice Bentinck, EF pioneered talent investing: matching high-potential founders, supporting them from ideation to first revenue, and backing them into Silicon Valley's top venture ecosystem across offices including London, San Francisco, and Bangalore.
AI & Technology
Impact Finance
Free Electrons
Accelerator
Free Electrons is a global open innovation program connecting energy startups with world-leading utilities to co-create the future of energy. For the past decade, the program has facilitated collaboration between startups, utilities, and ecosystem partners to pilot breakthrough solutions, scale technologies through commercial deployment, and accelerate the energy transition. Through a series of modules held globally (physically and digitally), startups gain direct access to utilities, local accelerators, and experts to refine and test their solutions while exploring growth opportunities. The program has delivered significant impact across multiple markets, with millions invested in pilots, deployments, and direct investments, generating substantial value for participants. Free Electrons offers startups the opportunity to validate technologies with leading utility partners, co-create viable pilot projects, secure deals and investment (over $23M USD to date), and access a global network of mentors, technical experts, and innovation specialists.
AI & Technology
Clean Energy
Climate Tech
Icehouse Ventures
Venture Capital
Icehouse Ventures is a New Zealand venture capital firm backing Kiwi founded companies with the potential to scale into global markets. The platform traces its roots to Ice Angels, launched in 2003 as New Zealand’s first angel investment network. It raised its first fund in 2013 and formally became Icehouse Ventures in 2019, when Simplicity KiwiSaver, Jarden, and Sir Stephen Tindall’s K1W1 joined as shareholders. Today, Icehouse Ventures manages a range of investment vehicles spanning pre seed through pre IPO, supported by a co investor network of more than 3,000 investors. The firm says it has invested more than $800 million across more than 390 Kiwi founded companies. Its portfolio includes some of New Zealand’s better known technology companies, including Halter, Crimson Education, Sharesies, Partly, Hnry, Dawn Aerospace, Tracksuit, Tradify, Ethique, Basis, Fuel50, and Spalk, alongside international investments such as Wayve, Substack, and Nuro. Growth Fund III is currently being marketed as an open investment vehicle. Icehouse Ventures is a generalist technology investor rather than a dedicated climate fund, but sustainability is part of its broader investment framework. The firm publishes a Responsible Investment Policy aligned with the UN Principles for Responsible Investment, and Principal Bex Gidall leads both the Arc Fund and Sustainable Technologies Fund. Its climate and impact related portfolio includes companies such as Neocrete, which develops additives designed to reduce cement use in concrete, and Ethique, a solid personal care brand focused on reducing packaging waste.
Built Environment
Environment & Conservation
Impact Finance
Just Climate
Venture Capital, Impact Fund
Just Climate is a mission-driven investment business established by Generation Investment Management that focuses on backing high-impact climate solutions capable of radically reducing or removing emissions. The firm targets attractive risk-adjusted financial returns while prioritizing transformational climate impact, operating through a 'climate-led' investing approach that starts with identifying solutions that can make the biggest difference to achieving net zero by 2050. The firm directs and scales institutional capital toward solutions for historically hard-to-abate industries, emphasizing low or no-carbon solutions that are transformational rather than incremental. Just Climate's mission is to make climate-led investing a capital allocation imperative, focusing on solutions that can benefit people everywhere while addressing the urgent need to radically reduce all emissions by 2030.
Clean Energy
Climate Tech
Environment & Conservation
Prosper Global Ventures
Venture Capital, Impact Fund, Accelerator
Prosper Global Ventures is the early-stage impact investing and venture-building platform of Prosper Global, the global development organization formerly known as Mercy Corps. The platform was founded in 2015 as Mercy Corps Ventures and now operates as a family of funds backing founders whose technologies help people and markets withstand climate and economic disruption. Its Resilient Future Thesis is organized around three connected areas: adaptive agriculture and food systems, inclusive climate fintech, and climate-smart technologies. The team invests primarily across Sub-Saharan Africa and Latin America, prioritizing founders who understand the communities they serve and businesses that can scale across a region or globally. Earlier Fund I activity also included Southeast Asia. Prosper Global’s current Ventures page reports 61 early-stage companies supported, $753 million in follow-on capital catalyzed, and 46.3 million customers reached across 90 countries. Its 2025 impact report says 83% of portfolio companies had raised follow-on capital and 46% had at least one woman co-founder. These are Prosper Global Ventures’ reported portfolio figures, not independent impact measurements. The platform combines equity investment with pilots, technical assistance, impact measurement, partnerships, and post-investment support. Representative investments made under the Mercy Corps Ventures name include Pula, which provides agricultural insurance and advisory products for smallholder farmers; Floodbase, which develops flood-risk data and analysis; Wasoko, a last-mile commerce and financing platform for small retailers; AgriAku, an agricultural input marketplace; Ejara, an inclusive savings and investment platform; and Verqor, an agri-fintech platform serving farmers in Mexico. Prosper Global Ventures is embedded within Prosper Global’s humanitarian and development network, giving portfolio companies potential pathways to test products with communities affected by climate volatility, financial exclusion, fragile food systems, and infrastructure gaps. The venture platform is associated with Scott Onder, its co-founder and senior investment leader, while Tjada D’Oyen McKenna leads the parent organization as CEO.
Clean Energy
Climate Tech
Impact Finance
T1D Fund
Foundation
T1D Fund is the world's first scaled venture fund dedicated exclusively to type 1 diabetes, operating as an impact investment fund that supports promising companies through equity investments and expertise. They focus specifically on accelerating treatments, prevention, and cures for the approximately 9 million people living with T1D globally. The fund operates as a powerful platform for collaboration, using catalytic capital and expertise to de-risk investments and create a flywheel effect that attracts other investors to the T1D space. As a wholly owned, not-for-profit independently run subsidiary of Breakthrough T1D, they leverage their intellectual capital and expert network to offer comprehensive support to portfolio companies, steering them through regulatory, clinical, and commercial milestones. With over $200 million in assets under management and 25+ active portfolio companies, T1D Fund creates significant impact in the diabetes ecosystem by reinvesting 100% of returns to propel continuous progress. Their unique position as subject matter experts combined with access to Breakthrough T1D's extensive network of research, clinical, and medical expertise enables them to transform the landscape of T1D investment and accelerate the development of life-changing therapies.
Health & Wellness
Wavemaker Impact
Impact Fund, Incubator
Wavemaker Impact is Southeast Asia's climate-tech venture builder, co-founding startups with proven entrepreneurs to cut emissions at regional scale. Launched in 2021 as part of the Wavemaker Partners platform and led by founding partner Marie Cheong, the firm targets the region's largest emission sources in agriculture, energy, industry, built environment, and transport, with a long-term goal of helping reduce 10% of the global carbon budget by 2035.
Clean Energy
Climate Tech
Environment & Conservation
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