Comprehensive Solutions—Integrated Approach

Founded in 1964, Willdan Group, Inc. is a leading nationwide provider of value-added professional technical and consulting services. The primary markets Willdan serves are: energy; infrastructure and transportation; municipal engineering, planning, and staff augmentation; economic and financial analysis; and homeland security and emergency management. The company serves these four complementary markets through its four service segments — engineering (Willdan Engineering), energy efficiency (Willdan Energy Solutions), public finance (Willdan Financial Services) and homeland security (Willdan Homeland Solutions).

Willdan has a reputation for delivering high-quality projects on time and within budget. Rooted in Willdan’s corporate culture is its focus on quality customer service. The company has more than 800 employees, including licensed engineers, program and construction managers, financial analysts, planners, and other skilled professionals.

Willdan benefits from well-established relationships with local and state government agencies, investor-owned and municipal utilities, and private sector commercial and industrial firms throughout the United States. The company served more than 800 distinct clients in 2013. Headquartered in Anaheim, the company operates from offices in more than a dozen states across the US.

Willdan has been delivering skilled, integrated, cost-effective engineering and planning services to its clients for more than 50 years. Whether you need one on-site staff expert or a full project team that can tap our nationwide resources and expertise, Willdan combines multidisciplinary experience and expertise, technical excellence, and management proficiency to deliver flexible, practical solutions at the lowest possible cost.

Willdan develops and implements comprehensive energy solutions nationwide for utilities, commercial entities, and all levels of government.  We help our clients realize cost and energy savings by tailoring solutions that serve vertical markets such as data centers, healthcare, lodging, and schools; providing energy reduction plans for large end-user commercial facilities and multi-family residences; and developing and implementing cutting-edge cost-effective measures for small businesses.

Public agencies at every level are being challenged to deliver enhanced services to a growing population—even while confronting budget constraints and meeting a tangle of reporting and compliance requirements. Willdan can enhance your efficiency, effectiveness, and credibility by helping you to both generate revenue and optimize its administration.

Willdan provides national preparedness, homeland security consulting, public safety, and emergency response services that focus on integrating local resources and assets within state and federal systems.

Established in 1964, Willdan had a single contract and a single purpose - to guide the building of the City of Dairy Valley (now the City of Cerritos).

Located in the heart of the greater Los Angeles/Orange County region, Dairy Valley was an eight square mile concentration of dairy farms facing the pressures of rapid urbanization. The Dairy Valley City Council commissioned William Stookey, then Fullerton City Engineer, and Dan Heil, former Fullerton Deputy City Engineer who had recently formed Heil Engineering, to prepare and implement a comprehensive City plan that identified the planned community development of the current City of Cerritos. William and Dan formed a partnership, Willdan Associates. In that first office in a trailer behind Dairy Valley City Hall, they hammered out innovative solutions to the area's development challenges which would go on to transform municipal redevelopment and funding processes.

Engineering services expanded throughout California, Nevada and Arizona. Willdan Engineering participated in some of the Southwest's most significant projects, including California's statewide structural bridge retrofit, major disaster recovery, interstate freeway improvements, and national award-winning flood control projects.

In 1999, Willdan acquired one of the nation's largest municipal finance consultants, MuniFinancial, now Willdan Financial Services, dramatically expanding the breadth of financial consulting it offered to cities, counties, districts and other public agencies.

In 2001, it expanded its geotechnical division, adding a certified nuclear lab and new expertise.

In 2005, as cities, counties, and other agencies faced an increasing need for homeland security training, planning, and other emergency management services, Willdan created its homeland security services division, now Willdan Homeland Solutions.

In 2006, Willdan Group, Inc. became a publicly traded company (NASDAQ:WLDN), generating an infusion of resources that would enable it to expand into new areas.

In 2008, Willdan acquired Intergy Corporation, now Willdan Energy Solutions, which supplies specialized energy, water, and resource management services to utilities, local and federal government agencies, hospitals, schools, and private enterprises. Willdan now provides innovative and effective solutions for energy efficiency, water conservation, and renewable generation from about a dozen offices across the country.

In 2015, Willdan expanded its energy engineering services by acquiring Abacus Resource Management, based in the Pacific Northwest and 360 Energy Engineers, in the Midwest, bringing strong performance contracting and building engineering capabilities. In 2016, Genesys Engineering P.C. also brought larger-scale power engineering and cogeneration skills in the New York area.

Today, as Willdan enters its second half century, we continue to concentrate on delivering superior solutions to our core market--public agencies, big and small. As the needs of public agencies have grown and diversified, we have balanced our expanded services and geography with the community sensitivity and direct service of our local offices. We remain as committed today as we were at our inception to extending both the reach and the resources of our clients.