ReqoData
Climate Tech & Energy 2026Updated

List of Climate Tech Startups That Raised Series A in 2024

Comprehensive database of climate technology startups that closed Series A funding rounds in 2024, including funding amounts, lead investors, subsectors, and headquarters. Built for VCs scouting follow-on deals and corporate BD teams evaluating partnership targets.

Available Data Fields

Company Name
Funding Amount
Lead Investor
Subsector
Headquarters
Technology Focus
Founding Year
Total Funding to Date
Key Investors
Use of Proceeds
Website
Employee Count

Data Preview

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Company NameFunding AmountLead InvestorSubsector
Pacific Fusion$900MGeneral CatalystNuclear Fusion
Syre$100MTPG Rise ClimateTextile Recycling
44.01$37MEquinor VenturesCarbon Mineralization
Climate X$18MGV (Google Ventures)Climate Risk Analytics
Cartken$23M468 CapitalAutonomous Logistics

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Climate Tech Series A Landscape in 2024

Climate tech venture funding totaled roughly $30 billion in 2024, down 14% year-over-year according to CTVC. While headline numbers declined, Series A activity remained a critical barometer of the sector’s pipeline health—deal sizes actually rose to 2021 levels even as deal counts contracted by around 22%.

Where the Capital Went

Energy-related startups captured nearly 35% of all climate tech funding in the first three quarters of 2024, up from 30% the prior year. Two subsectors saw explosive growth:

Geothermal
Nearly tripled to $558M in venture investment
Nuclear (including fusion)
Almost doubled to $1.9B, anchored by Pacific Fusion’s landmark $900M Series A

AI-centered climate ventures raised $1 billion more in the first three quarters of 2024 than in all of 2023, reflecting investor conviction that AI can drive efficiency gains across industrial and energy systems.

Notable Series A Rounds

CompanyAmountFocus
Pacific Fusion$900MPulsed magnetic inertial fusion
Syre$100MTextile-to-textile polyester recycling
44.01$37MCO₂ mineralization into rock
Cartken$23MAutonomous delivery robots
Climate X$18MClimate risk modeling for asset portfolios
Wattalps$14.5MLithium power with immersion cooling
Atlas Metrics$13.6MESG reporting automation

Investor Landscape

The most active climate tech investors by deal count in 2024 were Lowercarbon Capital and Breakthrough Energy Ventures, each participating in at least 34 known financings. TPG Rise Climate, General Catalyst, and GV (Google Ventures) also made high-profile Series A bets.

The Series A-to-B Gap

A persistent challenge in 2024: the time from Series A to Series B has crept beyond two years. Many climate tech companies are stuck at the pre-Series B stage, unable to bridge the gap between early traction and growth-stage capital. This dynamic makes the Series A cohort especially relevant for investors seeking early positioning in companies approaching inflection.

Frequently Asked Questions

Q.How many climate tech startups raised a Series A in 2024?

Approximately 300-350 climate tech startups closed Series A rounds in 2024, based on CTVC and PitchBook data. Series A deal counts fell roughly 22% from 2023, though average deal sizes increased to 2021 levels.

Q.Does this dataset include hardware and deep-tech companies?

Yes. The dataset covers the full spectrum from software-only plays (ESG reporting, climate risk analytics) to hardware-intensive ventures (fusion, carbon mineralization, battery tech). Each entry includes a technology focus field to help you filter accordingly.

Q.How is the data collected and how current is it?

When you request this dataset, our AI crawls public web sources—press releases, Crunchbase, SEC filings, company websites, and investor announcements—to compile the latest available information. Data reflects publicly available information at the time of your request.

Q.Can I filter by specific investor to see their portfolio?

Yes. You can specify an investor name in the filter prompt and the dataset will return only companies backed by that investor in their 2024 Series A round.

Q.Does this include bridge rounds and extensions labeled as Series A?

Yes. The dataset includes Series A extensions and bridge rounds (e.g., 44.01’s $5M Series A extension) as well as standard Series A closes, since these represent meaningful capital events for pipeline tracking.