Recipient of the 2018 IBPSA-USA Award for Outstanding Practice - more

Now a part of
Willdan Group, Inc.

Read the press release

THE WEIDT GROUP, INC. is now a part of Willdan, combining two long-established leaders in engineering and innovation. We’re excited to offer new services and software to solve energy, sustainability, and performance challenges.

Our customizable software platform makes it easy for design teams, utilities and building owners to maximize performance in new and existing buildings of any type, size or age.


Services to get you closer to zero energy

  • Utility Programs

    Services and turnkey programs for utilities and energy agencies that help commercial new construction projects save energy

  • Energy Design Assistance

    More precise, real-time predictive modeling for architects and engineers as early as Day One

  • B3 Benchmarking

    Real, relevant comparative data for assessing building energy performance and prioritizing improvement projects

  • Building Performance

    Engineering analysis and investigative services for optimizing energy performance in
    existing buildings

  • Energy Software

    Easy-to-use, real-time modeling for anyone who needs comparative analyses of building product-related performance