Planning & Design Consulting companies

Kimley-Horn is a planning, engineering, and design consulting firm with nearly 10,000 employees across more than 150 U.S. offices, serving clients on infrastruc…

SLR Consulting Ltd is a global environmental and sustainability consultancy with over 4,500 staff across 135+ offices, delivering strategy and project delivery…

GAI Consultants is a US-based engineering, planning, and environmental consulting firm serving energy, transportation, and infrastructure sectors since 1958.

ProSidian Consulting is a national management and operations consulting firm serving private companies and government agencies across six solution areas includi…

Burns & McDonnell is a 100% employee-owned engineering, architecture, construction, environmental and consulting firm that designs and builds critical infrastru…

LaBella Associates is a 100% employee-owned firm that plans, designs, engineers, and manages projects across the built and natural environment, primarily in the…

Halker Consulting is a multi-disciplinary engineering firm providing energy and infrastructure solutions across oil & gas, power, and environmental sectors.

Electrical Consultants, Inc. (ECI) is an employee-owned power delivery engineering firm serving utilities, energy developers, and industrial clients across the…

Commonwealth Associates is an employee-owned engineering and consulting firm providing power system engineering, substation design, and renewable energy service…