---
title: "Advertising sales house: definition, role and business model"
description: "What is an advertising sales house (régie)? Role, difference from a media agency, compensation model, and examples across TV, radio, press and digital."
url: "https://publicitefrance.com/en/blog/regie-publicitaire/"
lang: en
translated_from: "https://publicitefrance.com/blog/regie-publicitaire/"
category: "Media"
publisher: "PubliCité France"
updated: "2026-08-02"
keywords: ["advertising sales house", "media sales house", "selling ad space", "ad sales representation"]
---

# Advertising sales house: definition, role and business model

**In short:** an advertising sales house ("régie") sells the advertising space of one or more media. It is the **seller** of space, on the media side — as opposed to the media agency, which **buys** on behalf of the advertiser.

## The role of a sales house
The sales house manages the sale of a medium's advertising inventory: television, radio, press, website, outdoor network. It defines offers, sets rates, negotiates with agencies and advertisers, and optimises inventory fill. Some sales houses are in-house (tied to the medium); others are external (mandated by several media).

## Sales house vs media agency
- **The sales house** represents the **medium**: it sells space at the best price for the publisher.
- **The media agency** represents the **advertiser**: it buys space at the best value for the brand.

These are two opposite sides of the same transaction — which is why transparency matters (see the Sapin law).

## The business model
The sales house is generally paid on space sales (commission or margin). Its performance depends on fill rate and inventory value. In digital, it coexists with programmatic channels, which automate part of the sale.

## FAQ
**Difference between a sales house and an advertising agency?**
The sales house sells space for a medium; the advertising agency designs campaigns for an advertiser. These are distinct jobs.

**Can a sales house represent several media?**
Yes: external sales houses market the inventory of several media, pooling the sales force.

**Does programmatic replace sales houses?**
No: it automates part of the sale, but sales houses keep a role in direct deals, special operations and premium valuation.

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*PubliCité France — blog, Media. French version: /blog/regie-publicitaire/*