Vatn Systems

Portsmouth, RI · Founded 2023 · Privately Held (backing)

Developer of autonomous underwater vehicles designed to operate in cooperative swarms. Vatn Systems is based in Portsmouth, RI and was founded in 2023. It was valued at $255 million at its early-stage round in Dec 2025, the last priced event on record. It has raised $75.7 million across 1 recorded round; the latest was a $15.5 million early-stage round in Oct 2024.

PMV mark · valuation
$255.0M
Oct 2026
Priced at
its early-stage round
Dec 2025
Total raised
$75.7M
Last round
Early Stage VC
Oct 2024
What is Vatn Systems worth?
$255.0MPrivateMarketView mark · Oct 2026

Valued at $255.0M at its early-stage round, Dec 2025. Nothing has traded since.

Free account
More of Vatn Systems with a free account
  • ·The complete investor list: 35 names
  • ·Watch Vatn Systems: the Monday email on marks, rounds and moves
Create free account
No card required

Membership and data by Private Market View

Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
▮▮
Markrounds hold their value until the next priced eventMark, today
log scale
Post-money values unlock with a free account.Unlock the axis

Membership and data by Private Market View

Vatn Systems funding history

1 rounds
DateRoundRaisedPost-money
Oct 2024Early Stage VC$15.5M▮
Unlock post-money valuations

Membership and data by Private Market View

Vatn Systems valuation

Vatn Systems was valued at $255 million at its early-stage round in Dec 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Vatn Systems raised?

Vatn Systems has raised $75.7 million in total; 1 of its rounds is on record. The largest on record was a $15.5 million early-stage round in Oct 2024.

Vatn Systems has filed 1 Form D with the SEC, most recently in Dec 2024 ($15.5 million sold to 38 investors).

Institutional holders and vehicles

In the last 12 months, 1 investment vehicle was formed to buy Vatn Systems shares, reporting $2.9 million sold to 12 investors, per SEC Form D filings (most recent Nov 2025).

How Vatn Systems'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 Vatn Systems, 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 Vatn Systems

What is Vatn Systems worth?
Vatn Systems is valued at $255.0M as of Oct 2026. Valued at $255.0M at its early-stage round, Dec 2025. Nothing has traded since.
How much has Vatn Systems raised?
Vatn Systems has raised $75.7M in total funding across 1 recorded rounds.
When did Vatn Systems last raise?
Vatn Systems last raised in Oct 2024 (Early Stage VC), raising $15.5M.