New York Event Planning by Corporate Events Manhattan.  New York City's leading event planning and production company is CEM. CEM's event planning will provide you with unique loft & event spaces, gourmet catering, high tech lighting and modern design. CEM event planning specializes in Product Launches, Media Events, Award Ceremonies and Holiday Parties. From event concept to event management, CEM event planning works closely with the event planner to achieve all of the companies objectives.