Aker Engineering & Technology AS
Dongbu Engineering Co., Ltd.Seoul-t'ukpyolsi, South Korea
Beijing Century Benefits Co. Ltd.
IDEAM SA
Katsumura Construction Co., Ltd.
R.J. Mears LLC
Slingco Ltd.Lancashire, United Kingdom
Beijing GeoEnviron Engineering & Technology, Inc.
Care Con Co. Ltd.
The Naeun Structural Engineering Co., Ltd.
Canam Group, Inc.Quebec, Canada
Whittaker Engineering (Stonehaven) Ltd.Aberdeenshire, United Kingdom