Atomi mini splits sold at Costco are owned by Atomi Smart , the company behind the Tempestas mini-split line. Atomi Smart lists the product on its own site and describes itself as the brand selling these systems, while Costco listings and third-party trackers show the Atomi Smart Tempestas units being sold through Costco.

Quick scoop

  • Brand/owner: Atomi Smart.
  • Product line: Tempestas smart ductless mini splits.
  • Where sold: Costco and other retailers like Best Buy in some markets.

What that means

This looks like a private-brand product rather than a generic Costco house brand. Atomi Smart markets the systems directly, supports them on its own website, and offers warranty coverage for authorized sales channels.

Practical note

If you’re asking who actually makes the hardware, that’s a separate question from who owns the brand. Public discussion around these units often guesses the underlying OEM may be a larger HVAC manufacturer, but the confirmed brand owner is Atomi Smart.

Bottom line: Atomi Smart owns the Atomi mini-split brand sold at Costco.