Index International Group Co., Ltd. (INDEX) was established in 1983 as an engineering consultantcy firm to provide wide range services of specialized fields such as project planning, city and district planning, architectural design involving landscaping and architecture, engineering design involving structural, electrical, mechanical, transportation,sanitary, geotechnical, environmental and water resources engineering.The construction management and supervision including commercial and office building, factories, roads, bridges, dams, airports etc., and the project study for investment are offered as well.

The objective of INDEX is to provide the study, survey, design and construction of infrastructure projects delicately and accurately in compliance with the engineering standards so as to provide maximum advantage to both customers and communities while ensuring that management efficiency and the use of advanced technologies optimizethe construction process.

Second Bangkok International Airport (Suvarnabhumi Airport) INDEX has provided airport master planning conceptual and schermatic design, errvironmental