1. Langan Engineering and Environmental Services, Inc. Parsippany New Jersey USA
2. InSitu Remediation Services Limited St. George Ontario Canada
3. WSP Boston Massachusetts USA
4. Nokia of America Corporation Murray Hill New Jersey USA
5. Ramboll Pittsburgh Pennsylvania USA
6. Burns & McDonnell Kansas City Missouri USA
7. Barnes & Thornburg LLP Washington District of Columbia USA
8. Arcadis Highlands Ranch Colorado USA
9. AECOM Severna Park Maryland USA