! style="background:#0051a0; text-align:left; color:#fff; width:30%;" | Concessienaam
! style="background:#0051a0; text-align:left; color:#fff; width:42%;" | Voormalige Vervoerder(s)
! style="background:#0051a0; text-align:left; color:#fff; width:28%;" | Contractperiode'sContractperiodes
|-
{{ImplConcessierij2 | GGD | | [[GVG]] (Groningen Stad), [[GADO]] (Groningen Streek), [[Arriva]] | 01-06-2004 t/m 12-12-2009 }}