Here are the main digital out‑of‑home (DOOH) media owners, networks and platforms active in Belgium (brief description + source):

• JCDecaux Belgium — Major street‑furniture, airport and retail DOOH operator (large programmatic inventory at Brussels Airport, shopping malls, metros, supermarkets). (jcdecaux-belux.com)
• Clear Channel Belgium — National DOOH owner with extensive street/station/retail screens and a programmatic offering via LaunchPAD. (clearchannel.be)
• Bauer Media Outdoor (Adshel Live) — Big Belgian DOOH network (Adshel Live and Station Live digital screens across cities and stations; programmatic options). (bauermediaoutdoor.com)
• blowUP media / Ströer (part of STRÖER group) — Large‑format and full‑motion digital city screens in Belgium (blowUP media is Ströer’s Belgian premium arm). (blowup-media.be)
• Glooh — DOOH aggregator/platform that packages inventory across Belgian networks (partners with Clear Channel, JCDecaux, Basic‑Fit Digital etc.). (glooh.co)
• VIOOH — Global premium DOOH SSP/marketplace used to buy programmatic inventory from operators (used by JCDecaux in Belgium). (blog.viooh.com)
• Place Exchange — Programmatic SSP active in Belgium (integrated with Clear Channel LaunchPAD for pDOOH buying). (placeexchange.com)
• DOOH‑TV‑International / DOOH integrators — systems integrators and retail‑mall digital network specialists that build and operate bespoke DOOH networks in Benelux/Belgium. (dooh-tv-international.com)
• Talon (OOH agency) — Out‑of‑home planning and buying agency active in Belgium (can plan and buy DOOH across the above owners). (talonooh.com)

Notes:

• The Belgian DOOH market is increasingly programmatic; most major owners (JCDecaux, Clear Channel, Bauer/Adshel) now expose inventory via SSPs/LaunchPAD/VIOOH/Place Exchange. (jcdecaux-belux.com)
• If you want, I can: (a) export these into a contact/inventory spreadsheet, (b) list which operators offer programmatic access and through which SSPs, or (c) recommend which networks fit a specific audience or city (Brussels, Antwerp, Ghent, Liège).