Lowercarbon Capital | Activity

Investment

Lowercarbon portfolio company Crusoe Energy raised a Series F round (valuation undisclosed) in September 2026. Crusoe operates cloud platforms for AI workloads powered by environmentally-aligned energy sources. Lowercarbon had previously participated in Crusoe's Series E.

Crusoe Energy

Crusoe Energy Lowercarbon Capital

tracxn.comSEP 4, 2026

SEP 4, 2026

Essay

Chris Sacca published 'Act II: Lowercarbon Capital' - a definitive essay laying out the firm's reinvestment thesis in climate tech. The essay argues that markets (not policy, philanthropy, or guilt) will solve the climate crisis, and that Lowercarbon backs companies that profitably slash CO2 emissions. The firm has grown to a portfolio of over 30 climate teams and is investing personal capital through partners Chris Sacca, Crystal Sacca and Clay Dumas.

Act II: Lowercarbon Capital founding essay by Chris Sacca

Lowercarbon Capital

lowercarbon.comAUG 26, 2026

AUG 26, 2026

Investment

Lowercarbon Capital led the seed round for Longview Restoration, a tech-enabled restoration contractor platform that rebuilds homes after natural disasters. The company has grown revenue to $15M and is profitable.

Longview Restoration

Longview Restoration Lowercarbon Capital

lowercarbon.comAUG 26, 2026

AUG 26, 2026

Milestone

Heart Aerospace's X1 demonstration electric aircraft (30-seat) completed its inaugural flight at Plattsburgh International Airport, climbing 1,100 feet and landing 8 minutes later. It is the largest electric battery plane to ever take flight. Lowercarbon invested in Heart when it was just a few sketches.

Heart Aerospace

Heart Aerospace Lowercarbon Capital

lowercarbon.comAUG 13, 2026

AUG 13, 2026

Investment

Lowercarbon Capital participated in Antora's Series C round alongside G2 Venture Partners and others. Antora makes thermal batteries that convert renewable energy into industrial heat.

Antora

Antora Lowercarbon Capital

tracxn.comJUL 20, 2026

JUL 20, 2026

Exit

Lowercarbon portfolio company Carbyon (direct air capture technology) was acquired by Airhive in July 2026. Lowercarbon had invested in Carbyon's Series A in September 2024.

Carbyon

Carbyon Lowercarbon Capital

tracxn.comJUL 17, 2026

JUL 17, 2026

Investment

Participated in Solar Square's $53M Series C to expand its residential rooftop solar platform.

Solar Square

Solar Square Lowercarbon Capital

energetica-india.netJUN 16, 2026

JUN 16, 2026

Investment

Participated in Thea Energy's $100M Series B for scalable stellarator fusion power plants.

Thea Energy

Thea Energy Lowercarbon Capital

thea.energyMAY 27, 2026

MAY 27, 2026

Investment

Returned in Panthalassa's $140M Series B to scale autonomous ocean-powered computing systems.

Panthalassa

Panthalassa Lowercarbon Capital

prnewswire.comMAY 4, 2026

MAY 4, 2026

Investment

Participated in Ulysses' financing as the ocean robotics company announced $46M across seed and Series A rounds.

Ulysses

Ulysses Lowercarbon Capital

irishtimes.comAPR 16, 2026

APR 16, 2026

News

Lowercarbon Capital's Climate Scoops page features a post on President Biden signing the Inflation Reduction Act two years on — likely older content. The page exists but the markdown didn't clearly show recent dated posts.

Lowercarbon Capital Climate Scoops page

Lowercarbon Capital

lowercarbon.comAPR 8, 2026

APR 8, 2026

Investment

Participated in Cloover's $22M Series A for Europe's residential electrification platform.

Cloover

Cloover Lowercarbon Capital

lowercarboncapital.comJAN 12, 2026

JAN 12, 2026

Investment

Backed Overview Energy's $20M seed round for space-based solar power transmission technology.

Overview Energy

Overview Energy Lowercarbon Capital