WattCarbon Raises Seed Extension Round
WattCarbon, a San Francisco, CA-based measurement and verification platform for distributed energy resources, has raised a seed extension funding round.
Investors
The round was led by Cerulean Ventures, with participation from City Light Capital, Tom O'Keefe, and existing investor True Ventures.
Cerulean is a pre-seed venture capital firm that invests at the intersection of AI, data, and climate. The firm backs founders who create exponential solutions for nature and the built environment.
The company will use the funds to scale platform development, expand market presence, and advance open-source measurement methodologies through the OpenEAC Alliance.
WattCarbon is a climate tech company offering a fully automated measurement and verification (M&V) platform for distributed energy resources. Its AI-powered Aristotle engine ingests utility, sub-meter, and device telemetry; applies statistically robust baselines; and delivers auditable savings and carbon-impact calculations in near real time. Headquartered in San Francisco, California, WattCarbon's mission is to become the authoritative "weights and measures" system for the energy transition.
Funding Details
Company: WattCarbon, Inc.
Raised: Undisclosed
Round: Seed Extension
Funding Date: July 2025
Lead Investor: Cerulean Ventures
Additional Investors: City Light Capital, Tom O'Keefe, True Ventures
Company Website: https://wattcarbon.com/
Software Category: Energy/ClimateTech – Measurement & Verification (M&V)