Private company

Société d'Études pour la Propulsion par Réaction

French research and manufacturing company

The Société d'Études pour la Propulsion par Réaction (SEPR) (in French: Jet Propulsion Research Company) was a French research and manufacturing company that specialised in the development of liquid-fuelled rocket engines. It was active throughout the Cold War period.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

1944Founded1
  • HeadquartersParis1
SEPR Antrieb für Mirage
Photo: Kobel, CC BY-SA 3.0, via Wikimedia Commons3

The Société d'Études pour la Propulsion par Réaction (SEPR) (in French: Jet Propulsion Research Company) was a French research and manufacturing company that specialised in the development of liquid-fuelled rocket engines. It was active throughout the Cold War period.2

Acquisitions

  1. Succeeded by Société européenne de propulsion1

Timeline

  1. 1944Founded Founded1