Halcrow Yolles

Halcrow Yolles is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Engineers Structural
• Engineers Consulting

North American Industry Classification System (NAICS) Categories:

• Engineering Services > Engineers Construction & Civil > Engineers Structural
• Engineering Services > Engineers Consulting

Standard Industry Classification (SIC) Categories:

• Engineering Services > Engineers Construction & Civil > Engineers Structural
• Engineering Services > Engineers Consulting