KBS is an urban transport company created in 2006 to modernize transporting system in Rwanda which had been suffering from a minibus-based system with privately owned (organized in cooperatives) vehicles competing heavily for passengers during rush hours but with very much reduced services in between and on less interesting routes.

KBS operates its buses on the regional service to Rubavu/Gisenyi via Musanze, 10 New 9 meter Yutong coaches were were added to the existing ones in 2012 and transit throughout the regional area. They were more comfortable than the city buses and had an underfloor luggage compartment. Some were let to Impala Express for services to the south of the country, but most of them were let to Belvedere Lines who used them in a fully white livery for various contracted services, among others for the UN. New employment was found for the seven vehicles in July 2016. KBS bought more Yutong buses in 2013, in two batches, bringing the fleet of large city buses to 70 though many of its Zonda buses were (temporarily) out of service. Beginning of 2015, 25 more city buses were added, but of a smaller model. In addition some Toyota Coaster were put into operation.

KBS used smart cards in 2011 from TaptoPay a company in Hong Kong but has now been replaced by the new Tap & Go cards from AC Group, a Rwandan company. KBS also lead the way in installing Wi-Fi in its buses.

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