Philanthropic capital plays a crucial but often underdiscussed role in financing the energy transition, particularly as a catalyst for early-stage companies and innovative technologies. Rather than serving as an end in itself, philanthropic capital is designed to leverage additional investments, helping scale solutions in carbon reduction, renewable energy, and job creation. By supporting companies at an early stage, philanthropic funding aims to generate exponential returns in societal and environmental impact, even if financial profits are secondary.
Alina Shkolnikov of PollyLabs highlighted how philanthropic and private capital intersect to drive industry-shifting developments. PollyLabs focuses on adapting proven technologies to new applications, rather than investing in unproven concepts, reducing risk while broadening adoption. This approach allows traditional investors to join more readily, amplifying the impact of early philanthropic support.
Donor-advised funds (DAFs) have emerged as a key tool in deploying philanthropic capital for decarbonization projects. These funds offer flexibility, tax advantages, and administrative benefits, aligning with the philosophy of angel investing through a philanthropic lens. Janet Brunckhorst of Southstar Consulting emphasized that DAFs provide patience and risk tolerance critical for early-stage, hard tech startups, allowing them to grow without the pressure of immediate financial returns. Intermediaries such as Realize Impact, Neta Foundation, CataCap, ImpactAssets, and Prime Coalition play an important role in converting DAF grants into private investments.
Grants remain an effective source of early-stage capital for climate entrepreneurs. The Massachusetts Clean Energy Center, for example, has successfully used grant funding to support clean energy companies, providing them with the runway to reach market-readiness and attract private investment. Over time, its $350 million in grants has mobilized more than $2 billion in additional private capital.
Public capital can also serve as the foundation of a larger capital stack, reducing risk for private investors while acting as a catalyst. The UN Joint SDG Fund exemplifies this approach, using public financing to de-risk investments and encourage broader participation from private and development capital. Unlike philanthropic funds, the SDG Fund seeks sustainability and long-term impact, strategically aligning resources around shared development objectives and enabling larger pools of investment in emerging markets.
Philanthropic capital has proven instrumental in supporting the “missing middle” of climate companies, particularly smaller enterprises that might struggle to attract private investment. Abigail Napsuciale Heredia of ATTA Impact Capital explained that modest philanthropic investments, often around $100,000, can catalyze significant follow-on investment while supporting companies that demonstrate positive revenue and measurable regional impact.
Overall, philanthropic capital should be viewed as a stepping stone for founders seeking to grow their companies. By leveraging grants, DAFs, and foundation funding, early-stage companies can refine products, achieve market fit, and expand their market presence, preparing to attract larger-scale private investment. This catalytic role highlights the strategic importance of philanthropy in scaling clean energy solutions and accelerating the transition to a low-carbon economy.







