UnannouncedVCRaise

Announced 5 days laterFiled 11 March 2026

Halcyon Carbon, Inc. raised $21M

Halcyon Carbon, Inc., a technology company based in San Francisco, CA, raised $21M in a new equity round, according to a filing dated 11 March 2026.

Filed 5 days before it was announced on 16 March 2026. halcyon.io ↗

Filed
11 March 2026
Round
Equity round
Amount sold
$21M
Offering size
$21M
Investors so far
14
Based in
San Francisco, CA
Website
halcyon.io

Investors on the board

Firms come from the venture funds whose filings name a director of this company.

Who is on the board

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How it compares

Larger than 72% of the 854 tracked raises with an amount filed in 2026, and than 73% of the 471 in technology.

Halcyon Carbon, Inc. in public filings

FiledFilingSoldRaise
11 Mar 2026New filing$21MThis raise

Everything on Halcyon Carbon, Inc.

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All 22 raises

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All unannounced rounds

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