Network Fund (Seed Fund) Grant
In context
This call is open to startups, at seed stage. Funding is an equity investment. Coverage is read from the notice itself: any country.
A rolling quarterly micro-fund that takes early-stage equity stakes in 50–60 climate tech startups per year across energy, infrastructure, and resilience sectors, writing ~$25K checks into competitive seed rounds. Open to accredited investors with a $5,000/quarter minimum commitment.
About this grant
The Network Fund is a quarterly subscription-based climate tech seed fund managed by Climate Capital that provides accredited investors early-stage investment access to 50-60 promising climate technology startups annually. The fund focuses on companies building critical infrastructure across three main areas: energy abundance (including grid intelligence, next-gen nuclear, geothermal, and distributed energy), physical infrastructure (robotics, autonomy, manufacturing, energy storage, and circular supply chains), and resilience and adaptation (disaster mitigation, insurance, and infrastructure resilience). Investors receive direct cap table access, priority allocation in follow-on rounds through SPVs, and benefit from C3's network of 500+ portfolio founders and 100+ tier-1 coinvestors including firms like Lowercarbon, Y Combinator, Congruent, and a16z. The fund has deployed over $50 million since 2019 across 500+ portfolio companies and achieved top 20% TVPI returns among similarly-sized funds based on 2019-2021 vintage benchmarks.
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Eligibility
The Network Fund is open to accredited investors and qualified clients as verified through AngelList. Minimum investment is $5,000 per quarter. Investors can choose annual commitments for discounted carry rates or maintain quarterly subscriptions that are cancelable at any time. Annual commitments may qualify for lower carried interest rates (10-20% range depending on commitment level).
Key requirements
- ✓Accredited investor status required
- ✓Minimum $5,000 commitment per quarter
- ✓Early-stage climate tech startups in energy abundance, physical infrastructure, or resilience/adaptation
- ✓Priority SPV access for follow-on investments in breakout companies
Recent past awardees
Knowing who's won the last rounds tells you whether you're in the strike zone.
- Exowatt
- Terraform Industries
- Arbor Energy
- Copper
- KoBold Metals
- Nitricity
- Span
- Waterplan
Frequently asked questions
- How much funding does C3 / Climate Capital offer?
- Network Fund (Seed Fund) offers $5,000 – $25K.
- Who can apply for Network Fund (Seed Fund)?
- Eligibility covers organisations in GLOBAL; startup. See the eligibility criteria above for the full conditions.
Relevant sectors
About this sector
Renewable energy funding covers solar, wind, hydropower, geothermal and bioenergy, from early research to grid-scale deployment. Public money tends to back demonstration, grid connection and access to energy in emerging markets, while procurement notices buy installation, operation and maintenance. Calls often ask for proof of resource assessment, permitting progress and local partners.
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