B2B telemarketing – the most effective way to acquire new customers Headquartered in Zug, JK Development GmbH is a B2B telemarketing service provider and offers a full service. Its services include all areas associated with successful telemarketing: address procurement, lead generation including lead management, appointment. The outbound call center of JK Development makes outgoing calls as part of a systematic telemarketing. It is aimed at decision-makers down to management level. Appointments are made for sales consultants, and direct sales or leads are generated through telephone sales. An extension of the target group by further language areas allows a maximum exploitation of the market potential. JK Development focuses on maximum flexibility and thus a cost-efficient realization of the service.