Redwood City, CA · Energy · Form D filed Oct 14, 2026

Circularity Fuels, Inc. raised $8.8M

Circularity Fuels, Inc. is an energy company based in Redwood City, California. In a Form D filed with the SEC on October 14, 2026, it reported raising $8,790,194 from 13 investors as part of an offering of up to $10,209,999. The first sale in the offering took place on September 1, 2026.

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Circularity Fuels builds AI-controlled, mass-manufacturable reactors that turn waste carbon and cheap renewable power into drop-in hydrocarbons, starting with affordable sustainable aviation fuel.
In the company's words, from circularityfuels.com

First Form D. This is the first new Form D notice the company has filed with the SEC: likely its first priced outside round.
Still raising. $1.4M of the $10.2M offering was still unsold at filing.

$8.8M raised since 2020

1 Form D offering, as reported to the SEC. Amendments update a round; they aren't counted twice.

Filed	Sold	Offering size	Investors
Oct 14, 2026	$8.8M	$10.2M	13

Lead score

67 out of 100

filed this week first raise ever still raising budget to spend website found young company

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Filing details

Website: circularityfuels.com
Amount raised: $8,790,194
Offering size: $10,209,999
Investors so far: 13
Minimum investment: $1
First sale: September 1, 2026
Securities offered: Equity, Securities issuable on exercise or conversion
Exemption claimed: Rule 506(b)
Industry: Energy
Headquarters: Redwood City, California
Incorporated: Delaware, 2023
Entity type: Corporation

Filings

Filed	Form	Raised	Offering size	Investors	Source
Oct 14, 2026	D (new notice)	$8,790,194	$10,209,999	13	SEC filing

Figures come from the company's own filing with the SEC and are shown as reported. How to read a Form D.

Updated October 15, 2026 · Raises in the week of Oct 12, 2026 · Energy funding in California

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