I hiaghly recommend Neventum services, I have worked with them a couple of times and they have the capacity to adapt their proposals to the needs you have for each event.
FLAWLESS FAIR PARTICIPATION WITH INHOUSE
INHOUSE Design Services offered by Hannover Fairs Turkey help both national and international tradeshow exhibitors express themselves in the best way possible, using specially designed stands showcasing their corporate identities.
INHOUSE Design offers fee based creative and modular stand design and application services. It also offers the opportunity to use the stands in multiple events.
In stand design process, INHOUSE Design takes into account the customer goals and comes up with the optimum design.