Not just Lufttransport´s LN-OLV that runs BOO-VRY-BOO is config. as 15-seater.
Also Alidaunia´s AW-139 I-LIDE that serves the scheduled route FOG-TQR-FOG twice daily year round (thrice daily in summer though midday service is operated usually by an AW-109 ...) is in 15-seat config.
See:
Home Page - Alidaunia s.r.l. - Società di navigazione aerea
On another note:
Anyone in the knowing who will be the operator of the new Scilly Island´s service ?