Tailscale

Tailscale is a technology company founded in 2019 by former Google engineers, including CEO Avery Pennarun. Based in Toronto, Ontario, Tailscale specializes in secure, zero-configuration networking solutions. The company has rapidly expanded its reach, serving over 12,000 paying businesses and hundreds of thousands of users worldwide. Tailscale has raised approximately $275 million in funding, achieving a valuation of $1.5 billion. The company's primary offering is a software-defined mesh Virtual Private Network (VPN) that provides Zero Trust Network Access (ZTNA). Tailscale simplifies secure networking by eliminating the need for complex firewall setups and manual key management. It uses the open-source WireGuard® protocol to create encrypted, peer-to-peer connections between devices. This approach enhances security and performance while supporting seamless integration with existing identity providers. Tailscale's solutions cater to a diverse range of customers, including developers, IT teams, small and medium businesses, and large enterprises, making secure connectivity accessible and efficient for various industries.

• WireGuard mesh VPN: zero-config device mesh
• ACL policies
• MagicDNS
• subnet routers
• SSH

Free personal; ~$6–$18/user/month business tiers