Syzygy Plasmonics

Houston, TX · Founded 2018 · Privately Held (backing)

Developer of a photocatalytic reactor designed to electrify chemical manufacturing and decarbonize many hard-to-abate industries. Syzygy Plasmonics is based in Houston, TX and was founded in 2018. It was valued at $247 million at its later-stage round in Nov 2022, the last priced event on record. It has raised $137 million across 3 recorded rounds; the latest was a $76.7 million later-stage round in Nov 2022.

PMV mark · valuation
$246.7M
Oct 2026
Priced at
its later-stage round
Nov 2022
Total raised
$136.8M
Last round
Later Stage VC
Nov 2022
What is Syzygy Plasmonics worth?
$246.7MPrivateMarketView mark · Oct 2026

Valued at $246.7M at its later-stage round, Nov 2022. Nothing has traded since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Syzygy Plasmonics funding history

3 rounds
DateRoundRaisedPost-money
Nov 2022Later Stage VC$76.7M▮
Mar 2021Early Stage VC$22.8M▮
Aug 2019Early Stage VC$10.7M▮
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Syzygy Plasmonics valuation

Syzygy Plasmonics was valued at $247 million at its later-stage round in Nov 2022. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Syzygy Plasmonics raised?

Syzygy Plasmonics has raised $137 million across 3 recorded rounds since 2019. The largest was a $76.7 million later-stage round in Nov 2022.

Syzygy Plasmonics has filed 4 Form Ds with the SEC since 2019, most recently in Nov 2022 ($76.7 million sold to 17 investors).

How Syzygy Plasmonics's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Syzygy Plasmonics, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by its last priced round. Question about this number? Full methodology →

Frequently asked about Syzygy Plasmonics

What is Syzygy Plasmonics worth?
Syzygy Plasmonics is valued at $246.7M as of Oct 2026. Valued at $246.7M at its later-stage round, Nov 2022. Nothing has traded since.
How much has Syzygy Plasmonics raised?
Syzygy Plasmonics has raised $136.8M in total funding across 3 recorded rounds.
When did Syzygy Plasmonics last raise?
Syzygy Plasmonics last raised in Nov 2022 (Later Stage VC), raising $76.7M.