Tidal Cyber

Clifton, VA · Founded 2022 · Privately Held (backing)

Developer of a threat-informed defense platform designed to shift cybersecurity from reactive vulnerability management to proactive, adversary-behavior-centric protection. Tidal Cyber is based in Clifton, VA and was founded in 2022. It was valued at $72.9 million at its early-stage round in Sep 2025, the last priced event on record. It has raised $23.8 million across 3 recorded rounds; the latest was a $15.9 million early-stage round in Aug 2025.

PMV mark · valuation
$72.9M
Oct 2026
Priced at
its early-stage round
Sep 2025
Total raised
$23.8M
Last round
Early Stage VC
Aug 2025
What is Tidal Cyber worth?
$72.9MPrivateMarketView mark · Oct 2026

Valued at $72.9M at its early-stage round, Sep 2025. 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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Markrounds hold their value until the next priced eventMark, today
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Tidal Cyber funding history

3 rounds
DateRoundRaisedPost-money
Aug 2025Early Stage VC$15.9M▮
Nov 2023Seed Round$3.0M▮
Sep 2022Seed Round$4.2M▮
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Tidal Cyber valuation

Tidal Cyber was valued at $72.9 million at its early-stage round in Sep 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Tidal Cyber raised?

Tidal Cyber has raised $23.8 million across 3 recorded rounds since 2022. The largest was a $4.2 million seed round in Sep 2022; the most recent was a $15.9 million early-stage round in Aug 2025.

Tidal Cyber has filed 3 Form Ds with the SEC since 2022, most recently in Sep 2025 ($15.9 million sold to 14 investors).

How Tidal Cyber'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 Tidal Cyber, 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 Tidal Cyber

What is Tidal Cyber worth?
Tidal Cyber is valued at $72.9M as of Oct 2026. Valued at $72.9M at its early-stage round, Sep 2025. Nothing has traded since.
How much has Tidal Cyber raised?
Tidal Cyber has raised $23.8M in total funding across 3 recorded rounds.
When did Tidal Cyber last raise?
Tidal Cyber last raised in Aug 2025 (Early Stage VC), raising $15.9M.