La Brasserie de la Senne or De Zennebrouwerij is named for the river Zenne which flows through Brussels, where the brewery is located. Founded by Bernard Leboucq and Yvan De Baets, the brewery has a reputation for brewing fine ales and "frustratingly rare blends" that often include lambic from the nearby Cantillon Brewery.
Leboucq and De Baets do everything themselves, using traditional methods. The beers are neither filtered nor pasteurized, and no additives are used. Their philosophy is to brew beers that are characterful, but not necessarily strong. With an annual production of 1,800 hectoliters, the demand for the beers currently exceeds production capacity.