Find the right engineering partner.

Engineering tomorrow's ideas today

Houston, TX

Civil Engineering and Municipal Engineering.

Sioux Falls, SD+1

Consider It Done.

Houston, TX

Precise. Responsive. Solutions.

Hummelstown, PA

Engineering. Delivered.

Raleigh, NC+1

Bright ideas, real solutions.

Chicago, IL

An International Engineering and Technical Services Provider

Kansas City, MO

Your "Project Excellence" Is Our Goal

Houston, TX+1

Pioneering Energy Excellence

Galliano, LA

Willdan transitions communities to clean energy and a sustainable future

Anaheim, CA+1

Multi-discipline industrial engineering and owner's representation services

Bothell, WA

Sustainable Engineering Solutions

Sustainable Engineering Solutions for the Biogas and Process Industries

Warrendale, PA

Partnering with you to deliver innovative, reliable energy solutions that enhance lives and strengthen the grid.

Leading the global energy transition as a full-service energy partner

Navigate a Better Future.

Multidisciplined EPCM

Beaumont, TX

Driven By Energy.

La Vista, NE+1

Over 90 Years of Delivering Excellence

Salina, KS+4

Intelligent Engineering Solution

Piscataway, NJ

Innovative gasification solutions for renewable energy, renewable fuels, and renewable products.

Nevada, IA

Global Engineering, Procurement and Construction Management Solutions

Tampa, FL