How much funding has Arbor raised?

Arbor has raised $64.0M in total funding, most recently a Series A round.

Who are Arbor's investors?

Arbor's investors include Lowercarbon Capital, Voyager Ventures, First Round Capital, Gigascale Capital, Marathon Petroleum Corporation, Obvious Ventures.

Where is Arbor headquartered?

Arbor is headquartered in Los Angeles, California, United States.

What industry is Arbor in?

Arbor operates in Climate Tech.

Arbor

Clean baseload power. Zero emissions.

Los Angeles, United States · Founded 2022 · $64.0M raised

Climate Tech

Headquarters: Los Angeles, California
Employees: 11–50
Founded: 2022
Business Model: B2B

Website: arbor.co
Total Funding: $64.0M
Last Round: $55.0M Series AOct 2025
Rounds: 2

About

Arbor Energy builds advanced power systems using oxy-combustion and supercritical CO₂ turbomachinery to deliver clean, zero-emission baseload electricity. Founded by veterans of SpaceX's propulsion team, Arbor's modular HALCYON turbine system combusts fuel with pure oxygen and captures all CO₂, enabling carbon-negative electricity when paired with organic waste feedstocks. The technology is designed to be scalable, fuel-flexible, and faster to deploy than competing clean energy alternatives, targeting data centers, industrial facilities, and grid operators seeking reliable carbon-neutral power.

Summary

Arbor is a Climate Tech company based in Los Angeles, United States, founded in 2022. It has raised $64.0M in total across 2 rounds, most recently a $55.0M Series A round in Oct 2025. Investors include Lowercarbon Capital, Voyager Ventures and First Round Capital.