Euronext’s subsidiary for small and medium-sized companies has launched the Tech 40 label to promote a group of firms listed on its markets as part of a push announced late last year to attract more tech listings.

Chosen by a group of industry experts every year, EnterNext's Tech 40 companies will form a new index set to launch on May 4. They will also be invited to participate in a roadshow aimed at targeting international and other venues, the bourse said on Tuesday.