About Willdan

For over 55 years, Willdan has delivered industry-leading engineering and energy solutions that have transformed government and commerce – having implemented over 100 utility programs and served 230,000 small business, healthcare, hospitality, and education customers nationwide. Today, we are leading our clients into a future accelerated by change in resources, infrastructure, and technology.

Our Vision

Willdan transitions communities to clean energy and a sustainable future. Like our people and skills, Willdan’s vision evolves with time. For more information on how we’ve grown and where we’re going, find the overviews below.


Willdan sets the standard for success in our industry because of our experienced staff of thought leaders, our support system for mentorship and growth within our company, and our focus on innovation to address tomorrow’s challenges.

Senior Management

  • Thomas D. Brisbin - CEO and Chairman of the Board

    Tom Brisbin

    Thomas D. Brisbin has served as Chief Executive Officer of Willdan Group, Inc., since April 2007 and was elected Chairman of the Board of Directors in November 2016. He was appointed President and CEO of Willdan in 2007.

    Previously, Dr. Brisbin was vice president of and consultant for AECOM Technology Corporation, a company focused on infrastructure, environment and facilities engineering contracts, where he was responsible for developing the company's environmental business for three years. Previously, Dr. Brisbin was chief operating officer and executive vice president of Tetra Tech, Inc., a leading provider of consulting, engineering and technical services, for five years. Prior to that, he was employed by Planning Research Corporation, or PRC, a systems analysis and management consulting company and wholly-owned subsidiary of The Black & Decker Corporation, from 1978 to 1995 and was co-founder and President of PRC Environmental Management, Inc. During his tenure at PRC, he was involved in all aspects of operations, marketing and finance. Before joining PRC, he was a research associate at Argonne National Laboratory. He has also served as an adjunct professor at the Illinois Institute of Technology.

    Dr. Brisbin holds a B.S. degree from Northern Illinois University and a Ph.D. in Environmental Engineering from Illinois Institute of Technology. He also completed Harvard Business School's Advanced Management Program in 1988.

  • Michael A. Bieber - President

    Mike Bieber

    Michael A. Bieber was appointed President of Willdan in November 2016, after serving as Senior Vice President, Corporate Development, since December 2014.

    Previously, he served as Senior Vice President at Tetra Tech, where he served in a number of leadership roles for over 18 years. From March 2007 to December 2014, Mr. Bieber managed Tetra Tech’s mergers and acquisitions and investor relations functions, overseeing over fifty acquisitions. From 2005 to 2007, Mr. Bieber managed Tetra Tech’s corporate business development group, where he was responsible for overseeing internal business development, marketing and communications. From January 2000 to December 2014, Mr. Bieber also worked in Tetra Tech’s investor relations group. From 1996 to 2000, he was a proposal manager in Tetra Tech’s corporate marketing group. From 1994 to 1996, he served at CRC, Inc., and its successor, as a strategic business development consultant to large defense, infrastructure, and environmental firms. Prior to 1994, Mr. Bieber worked for IT Corporation (now CB&I) where he served as project manager and engineer on government nuclear and commercial environmental projects.

    Mr. Bieber holds a B.S. degree in Civil Engineering from the Tennessee Technological University.

Key Corporate Personnel

  • Creighton K. (Kim) Early - Chief Financial Officer

    Kim Early

    Creighton K. (Kim) Early was appointed Chief Financial Officer of the Company, effective April 16, 2021. Mr. Early served as Executive Vice President and Chief Financial Officer of Willdan’s Energy Solutions group from 2015 to 2021. Prior to joining the Company, Mr. Early acted as Chief Financial Officer for Infrastructure and Energy Alternatives, a $700 million builder of utility-scale wind, solar, and biomass projects. Previously, he acted as the Chief Financial Officer for Earth Tech and helped the company grow over 14 years from a $37 million federal government geotechnical consulting firm into a $1.3 billion multi-national water, environmental, and transportation engineering leader. Mr. Early has participated in more than 50 M&A transactions as either a buyer, seller, or advisor.

    Mr. Early has a Master’s in Business Administration from the University of Michigan and a B.S. degree in Finance from Ohio State University.

  • Micah Chen - General Counsel

    Micah Chen

    Micah Chen currently serves as General Counsel for Willdan Group, Inc., where he manages and mitigates all legal and regulatory risks for the organization. From 2006 to 2007, Mr. Chen served as Vice President of the Construction Risk Group at Willis Towers Watson. He held various positions, from Senior Vice President to Managing Director, at Aon Corporation from 2008 to 2017. In these roles, he developed risk management programs for Engineering News-Record Top 100 clients, contractors, and manufacturers.

    He received his B.A. in International Economics from the University of California, Los Angeles and earned his J.D. (Juris Doctor) from Western State University, College of Law. He is a member of the American Bar Association as well as the California Bar Association.