Cloudlinux

CloudLinux makes CloudLinux OS, a Linux distribution with per-account resource limits and isolation for shared and VPS hosting, plus add-ons including Imunify360 (server security), ImunifyAV, Imunify Email, AccelerateWP, MAx Cache and KernelCare live kernel patching.

Its customers are web hosting providers, agencies and developers, and site owners, per the website. The company states it has more than 4,000 customers, including Liquid Web, 1&1 and Dell, and more than 500,000 product installations. Products are offered through a free-to-start model with paid upgrades and licences, such as VPS bundles that the site says save up to 55% on licensing.

The company is listed in the registry as based in Poland; its website gives a Palo Alto, CA headquarters address and a St. Petersburg, FL mailing address for Cloud Linux Software, Inc., which operates under the TuxCare trade name. It states that more than 250 employees work remotely across countries. Current open roles include Imunify360 staff security and engineering positions, database reliability engineers, automation, Node.js security, product ownership and a TuxCare head of direct sales, with locations listed in Warsaw, Lisbon, Madrid, Prague, Sofia and Seattle.

Product: CloudLinux OS for shared and VPS hosting, with Imunify360 security, KernelCare kernel patching and WordPress performance add-ons.