Climate Tech hub: 109 startups and 86 funds matched in our directory. Search the full startup corpus from /startups.
Venture Capital Tracker logo
Venture Capital Tracker

Climate Tech startups and investors we cover

Shortlist companies and funds tagged Climate Tech in our directory. This hub is a sector cut, not a complete market census. Search every startup from /startups or open the investor list.

Startups in this sector

Showing 12 of 109 matched profiles.

  • Antares Nuclear

    Develops factory-built nuclear microreactors for reliable power at military, space and remote industrial sites.

  • Valar Atomics

    Develops standardized gas-cooled small nuclear reactors for industrial and AI infrastructure power.

  • General Matter

    Develops U.S. uranium enrichment and HALEU fuel supply for advanced nuclear reactors.

  • Endurance Energy

    Develops modular seafloor geothermal generators for coastal and industrial electricity demand.

  • Ambrosia Energy

    Develops solar-and-storage power plants for industrial users that cannot wait for utility-grid interconnection.

  • Pacific Fusion

    Pulsed magnetic inertial fusion company with more than $900M in milestone-based Series A commitments announced in October 2024; working toward net facility energy gain.

  • Aalo Atomics

    Nuclear startup making factory-built reactors for data centers; raised $100M Series B with Alumni Ventures in August 2025 and reported first criticality in July 2026.

  • X-energy

    Public nuclear-technology company developing the Xe-100 small modular reactor and TRISO-X fuel; its shares began trading on Nasdaq as XE on April 24, 2026.

  • Radiant

    Portable micro-nuclear reactors for remote power and defense applications.

  • Apollo Atomics

    Factory-built, truck-transportable compact pressurized water reactors aimed at AI data centers, industry, and utilities.

  • Peak Energy

    Sodium-ion battery storage systems for grid and data-center customers.

  • VECKTA

    Planning and procurement software for businesses buying onsite energy systems.

Investors in this sector

Showing 12 of 86 matched funds.

  • AgriZeroNZ

    New Zealand agritech investment company focused on technologies that can reduce agricultural greenhouse-gas emissions. It led ArkeaBio’s $15 million Series A2 in September 2026.

  • Antares Ventures

    Antares Ventures invests globally in early-stage deep technology and supports commercialization across Asia. Its focus spans energy, compute/digital infrastructure, industry and urban/transport infrastructure. Fund I reached more than $50M at its second close, announced October 14, 2026, toward a $100M target. Approximately $27M had already been invested across nine companies; the second-close amount is cumulative, not a disclosed new tranche.

  • Ara Partners

    Ara Partners is a private equity and infrastructure investment firm focused on the energy and industrial transition. Its Energy strategy acquires operating power, biofuels, and delivery and distribution assets, with operational improvement and economically supported emissions reduction as objectives.

  • Atomico

    European technology investment firm that partners with founders from early stage through growth across software, deep technology, climate and consumer markets.

  • Balerion Space Ventures

    Dallas-based venture firm investing across space, defense, advanced energy and other infrastructure technologies tied to economic and national security.

  • BioGenerator Ventures

    St. Louis company-creation and early-stage investor focused on healthcare and agriculture. Part of the BioSTL ecosystem; BioGenerator dates to 2003 as a regional life-science formation engine. BioGenerator Ventures builds companies from concepts/EIRs, invests from an evergreen model, and syndicates with national venture and strategic capital. Sectors: therapeutics, diagnostics, research tools, and agtech. HQ St. Louis, MO.

  • Blue Startups

    Honolulu accelerator and early-stage investor helping founders build companies with Asia-Pacific relevance from Hawaiʻi. Cohort-based program with demo-day visibility across the Pacific.

  • Bread & Butter Ventures

    Minneapolis early-stage firm investing in food, ag, and related technology companies — thesis-aligned with Midwest industry strengths.

  • Breakthrough Energy Ventures

    Climate-technology venture fund within Breakthrough Energy, investing in technologies capable of materially reducing greenhouse-gas emissions. It backed ArkeaBio’s Series A and Series A2 financings.

  • Chang Robotics Fund

    Jacksonville manufacturing-tech venture fund (founded 2024) investing in disruptive robotics, automation, and industrial technology addressing labor shortages, energy transformation, healthcare manufacturing, and environmental remediation.

  • Clean Energy Ventures

    Climate technology venture capital firm investing in companies with potential to materially reduce greenhouse-gas emissions.

  • Clutterbuck Capital

    A private investment firm participating in energy-transition and advanced-technology financings, including Type One Energy's Series B.