Telenet is the challenger provider to Proximus in Flanders (and partly in Brussels). Via its cable network, Telenet provides Internet, telephony and network services to private individuals and companies.

Proximus is the number one telecommunications operator in Belgium. It originated from the former state-owned company Belgacom. They offer all possible telecom services in the areas of Internet, network, telephony and hosting to all types of customers.

VOO is the largest cable operator in Wallonia (and partly in Brussels). They offer fast internet as well as fixed and mobile telephony and TV services. Active on the residential and professional market.

Orange was created from the old Mobistar. For Internet, they use the fast Telenet network, and offer very competitive Internet and telephone services on it.

Mobile Vikings is a maverick in the telecoms market. From its inception, they have focused on providing very competitively priced mobile data, and on a strong 'Viking' community feel.

EDPNet is a challenger on the telecommunications market. They provide internet and telephony services to individuals and enterprises. In addition, they offer solutions for larger enterprises in the area of telephony and server hosting.

Base is a mobile telephony operator in Belgium, and is part of the Telenet group. As a low-price operator they offer of very extensive set of mobile subscriptions and prepaid sim cards.