Ernst & Young (or "EY") is one of the largest professional services firms in the world and one of the Big Four auditors, along with PricewaterhouseCoopers (PwC), Deloitte and KPMG.
Ernst & Young is a global organization of member firms in more than 140 countries. Its global headquarters are based in London, UK and the U.S. firm is headquartered in New York.
According to Forbes magazine, as of 2008 it is also the 9th largest private company in United States.
Founded in 1964, KEO delivers world-class professional design and management services. KEO offers award winning architectural design, progressive infrastructure engineering and highly ranked project and construction management known for quality and professionalism. KEO is one of the largest AEP/PMCM firms and have consistently ranked in ENR in the top 200 International Design Firms, as well as Top 20 International PM rankings for 2004-2009. BD World recently ranked KEO #39 in the Top 100 Architects in the world.
WSP Group plc is a global business providing management and consultancy services to the built and natural environment. WSP operates as a specialist in the property, transportation and infrastructure, environment and energy and management and industrial sectors providing a full range of services from planning through to design, implementation and maintenance.
WSP Group has extensive international experience in America, UK, Europe, Africa, the Middle East, and Asia gained through working in over 60 countries and currently has 250 permanent offices in 35 countries.
NACO, Netherlands Airport Consultants B.V. is one of the world's leading independent airport consultancy and engineering firms offering integrated, full-service planning and design services. The 60 years of experience and expertise are instrumental in solving the increasing complexity of developing today's airports.