Avery Pennarun, Founder of Tailscale

Avery Pennarun is the founder of Tailscale. Tailscale has raised $272M, latest Series C $160M (2025). Cybersecurity · Toronto, Ontario, Canada.

About Avery Pennarun

Avery Pennarun is the founder of Tailscale. Tailscale operates in Cybersecurity and is based in Toronto, Ontario, Canada. Tailscale has raised $272M, latest Series C $160M (2025). Backers on record include Arthur Patterson, Jeff Clavier, Tom Drummond, Accel, Heavybit, Uncork Capital.

Avery Pennarun at a glance

Company
Tailscale
Industry
Cybersecurity
Location
Toronto, Ontario, Canada
Total raised
$272M
Investors on record
Arthur Patterson, Jeff Clavier, Tom Drummond, Accel, Heavybit, Uncork Capital

Frequently asked about Avery Pennarun

Who is Avery Pennarun?
Avery Pennarun is the founder of Tailscale. Full profile, funding history and background on StartupFundraising.com.
What company did Avery Pennarun found?
Avery Pennarun founded Tailscale, a Cybersecurity company based in Toronto, Ontario, Canada.
How do I contact Avery Pennarun?
Verified contact routes including LinkedIn, background and funding history for Avery Pennarun are available on the StartupFundraising.com founder profile.

This founder profile draws on disclosed rounds, filings and investor records in the StartupFundraising database and is updated as new funding is recorded. Founders raising now use profiles like this one to study comparable Cybersecurity journeys in Toronto — who backed them, at what stage, and how much they raised.

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