# Deployer

A company or other body that uses an AI system under its own authority, as opposed to the provider that makes it.

The EU AI Act (Article 3(4)) says: "a natural or legal person, public authority, agency or other body using an AI system under its authority except where the AI system is used in the course of a personal non-professional activity."
Many people assume a deployer is the builder. Under the Act, a company that uses an AI system at work is a deployer; the company that makes it is the provider.

Also called: AI deployer

Often confused with: Use-case owner

The other half: Provider

Related: High-risk AI

Source: https://redfinchadvisory.com/lexicon/deployer (version 1.0, changed 2026-10-21)