Mergers & Acquisitions ·
On September 22, 2026, Willdan Group announced that its wholly owned subsidiary, Willdan Energy Solutions, entered…
WLDNWilldan Group, Inc.
On September 22, 2026, Willdan Group announced that its wholly owned subsidiary, Willdan Energy Solutions, entered into a Membership Interest Purchase Agreement to acquire 100% of Mantis Intermediate Holdings from Mantis NewCo for a base purchase price of $285 million in cash. The transaction is subject to customary closing conditions, including Hart-Scott-Rodino antitrust clearance and working capital adjustments, with an expected closing date of October 30, 2026. Willdan Group provides full guarantee of the subsidiary's obligations under the agreement. This acquisition represents a significant strategic expansion for Willdan Group, which operates in the engineering consulting industry specializing in energy, infrastructure, and environmental services.