Tailscale

Security · Toronto, Canada · Founded 2019 · Privately Held (backing)

Developer of a corporate virtual private network designed to establish secure and seamless connectivity across distributed resources and infrastructures. Tailscale is based in Toronto, Canada and was founded in 2019. It was valued at $1.4 billion at its later-stage round in Apr 2025, the last priced event on record. It has raised $277 million across 4 recorded rounds; the latest was a $160 million Series C in Apr 2025.

PMV mark · valuation
$1.4B
Oct 2026
Priced at
its later-stage round
Apr 2025
Total raised
$277.3M
Last round
Series C
Apr 2025
What is Tailscale worth?
$1.4BPrivateMarketView mark · Oct 2026

Valued at $1.4B at its later-stage round, Apr 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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Tailscale funding history

4 rounds
DateRoundRaisedPost-money
Apr 2025Series C$160.0M▮
May 2022Series B$100.0M▮
Nov 2020Series A$12.0M▮
Apr 2020Seed$3.0M▮
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Tailscale valuation

Tailscale was valued at $1.4 billion at its later-stage round in Apr 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Tailscale raised?

Tailscale has raised $277 million across 4 recorded rounds since 2020. The largest was a $3 million seed round in Apr 2020; the most recent was a $160 million Series C in Apr 2025.

Comparable companies

Comparable security names by valuation on PrivateMarketView: 1Password ($6.8 billion), Immersive Labs ($545 million) and Dune Security ($37 million).

How Tailscale'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 Tailscale, 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 Tailscale

What is Tailscale worth?
Tailscale is valued at $1.4B as of Oct 2026. Valued at $1.4B at its later-stage round, Apr 2025. Nothing has traded since.
How much has Tailscale raised?
Tailscale has raised $277.3M in total funding across 4 recorded rounds.
When did Tailscale last raise?
Tailscale last raised in Apr 2025 (Series C), raising $160.0M.