• Willdan agreed to buy Mantis Innovation for USD 285 million in cash, subject to customary holdbacks and adjustments.
• Mantis, based in Houston, provides building controls, energy efficiency, energy advisory, energy procurement, and facility management services.
• Closing is expected in the fourth quarter of 2026, pending completion of the HSR anti-trust approval process.
• Mantis is forecast to generate USD 120 million of net revenue in 2026 with an adjusted EBITDA margin in the low 20% range.
• Willdan plans to fund the deal with a new USD 250 million term loan, cash on hand, and borrowings under existing credit facilities.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Willdan Group Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 20260922423324) on September 22, 2026, and is solely responsible for the information contained therein.