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Climate Capital

climatecapital.co · San Francisco, California

“Infrastructure is the critical layer for climate transition. Three pillars: (1) Energy Abundance - hyperscaling cheap clean energy for 2X grid capacity, (2) Physical Infrastructure - 100X energy storage and circular supply chains for robotics/autonomy, (3) Resilience & Adaptation - fortifying critical systems against climate disasters.”

$25K – $250K
Check Size
Leads & Follows
Lead Tendency
~1 Month
Timeline
01Investment Thesis

Infrastructure is the critical layer for climate transition. Three pillars: (1) Energy Abundance - hyperscaling cheap clean energy for 2X grid capacity, (2) Physical Infrastructure - 100X energy storage and circular supply chains for robotics/autonomy, (3) Resilience & Adaptation - fortifying critical systems against climate disasters.

Exclusion Criteria

We avoid consumer-only plays, non-technical founders, hardware without software moat, companies that don't address infrastructure layer.

02Investment Team
SA
Sundeep Ahuja
Founder & General Partner
NM
Nishant Mani
General Partner
IC
Ian Campbell
Senior Associate
ST
Sherrie Totoki
GM, Climate Angels
MM
Mike Mettler
Venture Partner
NV
Nick van Osdol
Venture Partner
SO
Schaffer Ochstein
Venture Partner
KD
Katie Durham
Syndicate Partner
KP
Kirthika Padmanabhan
Syndicate Partner
MW
Max Wang
Syndicate Partner
SR
Sam Runkle
Syndicate Partner
03F4 Research Brief

Climate Capital Research

Climate Capital is the leading early-stage venture capital platform specializing in climate tech and climate solutions. Founded by Sundeep Ahuja (co-founder of Kiva.org) and evolved from a single syndication in 2015 into a diversified platform managing multiple vehicles.

Investment Thesis

Climate Capital's core thesis centers on infrastructure as the critical layer for the climate transition. They identify three interconnected pillars:

1. Energy Abundance - AI and electrification will demand 2X grid capacity, requiring hyperscaling cheap, clean energy (both firm and intermittent). Focus areas include grid intelligence, next-gen nuclear, critical minerals, geothermal, transmission capacity, and distributed energy.

2. Physical Infrastructure - Robotics, autonomy, and manufacturing require 100X energy storage, next-generation materials, and circular supply chains at scale. They invest in energy storage (BESS), bioindustrial materials, resource circularity, robotics infrastructure, and manufacturing AI.

3. Resilience and Adaptation - Critical systems (supply chains, urban infrastructure, food systems, water resources) require fortification against accelerating climate disasters. Areas include disaster mitigation, climate insurance, detoxification infrastructure, and resilience engineering.

Climate Capital believes infrastructure represents the most important category for climate tech investment and sources deals first by maintaining close relationships with top-tier co-investors and founders.

Stage and Check Size

Climate Capital operates across a spectrum of early-stage investments through multiple vehicles:

Network Fund (Primary Vehicle):

  • Quarterly subscription model with $5,000 minimum per quarter
  • Targets 10-20 deals per quarter (50-70 per year)
  • Check sizes of $25K per deal through syndication structure
  • Fund structure: 2% annual management fee, 10-20% carried interest, $20K fund setup fee
  • Minimum annual commitments of $20K qualify for discounted carry

Seed Fund (New - 2024):

  • Concentrated exposure to category-defining ventures
  • Investment thesis: category-defining ventures across energy, industrial decarbonization, and resilience
  • Led by experienced, technical founders with highest conviction bets
  • More focused vehicle within broader platform

The firm has strong follow-on reserves and priority access to concentrate in winners through SPVs for later-round participation.

Deal Flow and Network Advantage

Climate Capital's unique strength is its massive network-driven deal sourcing:

  • 400+ portfolio companies across multiple funds
  • 2,000+ individual LPs as of 2024
  • 100+ top-tier co-investors including Lowercarbon Capital, Y Combinator, Congruent Ventures, Energy Impact Partners, a16z
  • First-look deals sourced through 400+ founder network and co-investor partnerships
  • Recognized by industry as the most active early-stage climate investor

Portfolio highlights showcase successful pattern recognition: companies like Zanskar (geothermal), Remora (carbon capture), Copper (battery home appliances), Span (electric panel), Exowatt (renewable energy), and KoBold Metals (critical minerals with AI) demonstrate their focus on infrastructure plays.

Recent Activity and Fund Status

Climate Capital is actively deploying capital. Evidence of recent activity:

  • May 2024: Recognized by Pitchbook as top 10 most active VC investors in climate tech
  • September 2023: Axios listed as one of the busiest venture investors in climate tech
  • December 2024: Juniper Ventures spun out of Climate Capital to focus on synthetic biology for climate
  • February 2025: Featured in Forbes as one of the five most active early-stage climate tech investors

The Seed Fund deployment beginning in 2024 signals actively deploying capital.

Team and Governance

Climate Capital operates with a distributed, specialized investment team led by Sundeep Ahuja (Founder & General Partner) and Nishant Mani (General Partner). The team includes Senior Associate Ian Campbell and specialized Venture Partners with deep domain expertise: Mike Mettler (fusion, fission, minerals, geothermal), Nick van Osdol (GHG solutions, adaptation), and Schaffer Ochstein (energy storage, mobility, grid tech).

Syndicate Partners Katie Durham, Kirthika Padmanabhan, Max Wang, and Sam Runkle bring specialized expertise in critical minerals, circular economy, wildfire/insurance, and built environment respectively.

Geographic Focus

Climate Capital maintains US-centric focus with particular concentration in San Francisco Bay Area and California broadly. Portfolio evidence shows strong presence in California (Copper, Span, Zanskar, Bedrock Energy). Also maintains global lens with investments across North America, Africa, Europe, MENA, and Asia through syndicate partnerships.

Track Record and Performance

Climate Capital has demonstrated strong performance metrics:

  • Top 2% markup-over-baseline among AngelList GPs
  • Top 20% TVPI (2019-2021 vintages) based on Carta benchmark for similar-sized funds
  • 400+ portfolio companies generated from systematic deal sourcing
  • $50M+ assets under management across platform
  • 2,000+ individual investors demonstrating broad LP appeal

These metrics position them as one of the top early-stage climate investors by both activity and returns.

Key Differentiators

  1. Network-First Model - 400+ founders, 100+ VC co-investors creating sourcing advantage
  2. Multi-Vehicle Approach - Seed Fund, Network Fund, Syndicates, Climate Angels allowing flexibility
  3. Infrastructure Focus - Clear, opinionated thesis on climate infrastructure drives concentrated portfolio
  4. Most Active - Explicit positioning as most active early-stage climate VC with 50-70 annual deals
  5. Community Building - Climate Angels community and Insights newsletter extending beyond capital
  6. Transparent Deal Flow - LPs see all deals with valuation transparency

Decision-Making and Investment Timeline

Climate Capital operates through partnership governance with multiple GPs. Specialized domain expertise partners make decisions in their focus areas. Syndicate structure allows broad LP participation. Decision timeline estimated at 1-2 months for Network Fund syndications.

Founder and Company Preferences

Ideal Founder Profile: Technical founders with deep climate domain expertise, experienced operators, founders previously backed by top-tier VCs

Sectors: Energy infrastructure (grid, nuclear, geothermal, renewables), critical minerals, carbon removal, industrial decarbonization, resilience infrastructure, built environment electrification, circular economy, agriculture and food systems

Business Models: Infrastructure plays, climate hardware, industrial biotech, software enabling climate transition

Technology Stacks: AI/ML for domain applications (grid optimization, materials discovery, geothermal exploration), hardware and robotics, biotech and synthetic biology

04Selected Portfolio
Biotech & Life Sciences
Colossal Biosciences
Climate & Sustainability
Zanskar·Remora·Rewbi·Bedrock Energy·Terraform Industries·Pila Energy·Arcadia·Waterplan·Inlyte Energy·CarbonBuilt·Scalvy·Critical Loop
Crypto & Web3
Sphere
Energy & Power
Exowatt·Arbor Energy·Strobe Power·Path Power·Moment Energy·Helical Fusion
Enterprise Software
Span·Magnefy·Noteworthy AI·Copper·Near Space Labs
Food & Beverage
Nitricity·Dispatch Goods
Gaming
Mana Battery
Manufacturing & Industrial
Kobold Metals
Robotics & Automation
Renovate Robotics
Other
Electric Era·Witching Hour·Transition Metal Solutions
Open the full portfolio→
05Recent Updates

Fresh signals from public announcements, essays, and portfolio activity.

See full activity (13) →
Named one of the Most Active Early-Stage Investors in Sightline Climate H1 2025 report.
NEWS·climatecap.substack.com
Added recently
Portfolio company Overstory raised $43M Series B round.
MILESTONE·climatecap.substack.com
Added recently
Invested in Scalvy's Series A round for distributed power delivery solutions.
INVESTMENT·tracxn.com
MAR 2026
Portfolio company Zitara was acquired by Elysia.
EXIT·tracxn.com
JAN 2026
Led investment in Critical Loop's Series A round for modular microgrids technology.
INVESTMENT·tracxn.com
JAN 2026
06Frequent co-investors
MC
My Climate Journey Collective
Both backed 3 of the same companies
Moment Energy, Exowatt, Span
SS
Susquehanna Sustainable Investments
Both backed 3 of the same companies
Dispatch Goods, Nitricity, Zanskar
CV
C2 Ventures
Both backed 2 of the same companies
Copper, Noteworthy AI
EI
Energy Impact Partners
Both backed 2 of the same companies
Arcadia, Bedrock Energy
FC
Footprint Coalition
Both backed 2 of the same companies
Arcadia, Span
Find the investors for your round→
07Similar Firms
PV
Prelude Ventures
$100K – $5M · Pre-Seed · Seed
→
MC
My Climate Journey Collective
$500K – $3M · Pre-Seed · Seed
→
LC
Lowercarbon Capital
$1M – $15M · Seed · Series A
→
EI
Energy Impact Partners
$2M – $20M · Seed · Series A
→
CE
Clean Energy Ventures
$500K – $15M · Pre-Seed · Seed
→
Quick Reference
Check Size
$25K – $250K
Stages
Pre-Seed · Seed · Series A
Decision
Partnership · ~1 Month
Warm Intro
Not Required
Involvement
Advisor
Location
San Francisco, California
Sector Focus
Climate & SustainabilityEnergy & Power
Models
Climate InfrastructureClimate HardwareIndustrial BiotechClimate Software
Technology
AI/MLHardwareBiotech
See all Climate & Sustainability investors →See all Energy & Power investors →
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Focus Areas
Climate & SustainabilityEnergy & Power

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F4 Intelligence Report · Last Researched August 24, 2026F4 Research Engine