Longmont, CO · Founded 2021 · Privately Held (backing)
Provider of zero-carbon concrete intended to make bio-cement with zero carbon emission and take the world towards sustainability. Prometheus Materials is based in Longmont, CO and was founded in 2021. It was valued at $23 million at its early-stage round in Mar 2022, the last priced event on record. It has raised $14.3 million across 2 recorded rounds; the latest was a $6.3 million debt round in Jul 2024.
PMV mark · valuation
$23.0M
Oct 2026
Priced at
its early-stage round
Mar 2022
Total raised
$14.3M
Last round
Debt
Jul 2024
No prints on record
No secondary trades in Prometheus Materials shares have been recorded yet. When market activity lands it appears here as monthly aggregates and, for platform-recorded trades, dated prints.
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Secondary marks are indicative month-end price levels observed across secondary-market trading venues — a level, not a trade — and are the market input to the PrivateMarketView mark. Private share prices aren’t published anywhere. Aggregate figures combine multiple reporting channels — direct participant reports, platform transactions, third-party market intelligence — at monthly granularity. Individually dated prints are a Pro feature and are shown only for transactions recorded on our own platform. Third-party-reported trades are never republished individually, at any tier. Verified prints (✓) have been confirmed against a second source. Prints marked SPV or Forward reflect the structure’s pricing, which can differ from direct share transfers of Prometheus Materials stock.
