

Founded in 1964 in Southern California by two engineers solving local municipal challenges.
Went public in 2006 (NASDAQ: WLDN), expanding via strategic acquisitions including energy, engineering, and analytics firms.
Delivers complex energy and infrastructure projects—such as grid modernization, EV charging, stadium transit planning, and data pipelines.
Operates in two main segments: Energy (efficiency audits, demand reduction, performance contracting, analytics) and Engineering & Consulting (city engineering, structural, transportation, water resources).
Typical clients include utilities, government agencies, schools, hospitals, industry, and commercial businesses across 20+ states.
Notable projects include an NFL
stadium traffic plan in Inglewood and solar+storage studies for Minnesota.
Commitment to environmental stewardship
Focus on the health, welfare and development of employees
Supporting local communities
Core mission: serving communities with superior technical solutions
Vision of transitioning communities to a clean energy and sustainable future