Willdan Group, Inc. (NASDAQ:WLDN) announced today that on May 4, it acquired 100% of the membership interests of Burton Energy Group, LLC (Burton), an energy management consulting and solutions provider headquartered near Atlanta, Georgia. Burton provides cost-effective, data-driven energy management, energy procurement, energy efficiency, and turnkey asset replacement services to multi-site commercial clients, which include monitoring over 60,000 client sites across the United States. Burton reported approximately $103 million in contract revenue, $15 million in net revenue, and $7 million in EBITDA in 2025. The transaction is expected to be accretive to Willdan's 2026 adjusted earnings per share. The terms of the transaction were not disclosed. Additional details will be provided in Willdan's earnings press release, updated guidance, and conference call this Thursday.

"Burton more than doubles Willdan's strategic expansion in the commercial sector by acting as a trusted advisor to many Fortune 500 clients, strengthening a key pillar of growth for Willdan," said Mike Bieber, Willdan's CEO. "Their capabilities deepen our energy management and efficiency services and add energy procurement to better support our clients' energy costs and risk management needs. Burton has a high percentage of recurring revenue and strengthens our presence across the Southeast and Midwest. We welcome all of the Burton team to Willdan."

"We founded Burton Energy Group nearly 25 years ago, and it has been both an integral part of our professional lives and a second family for many of us," said Brent Burton, Managing Partner and Founder of Burton. "In Willdan, we found a partner that broadens our services and portfolio while also sharing our culture, values, and commitment to providing great value to customers and positively impacting the environment. We couldn't be more excited to join Willdan and grow together."

"Willdan's collaborative culture and leadership in solving complex problems across the energy sector provide a great new home for our team to excel and reach new heights of service," said Mark Breuker, Managing Partner of Burton. "We look forward to driving continued innovation and growth for our customers and stakeholders."

About Burton Energy Group

Burton Energy Group is a privately held, independent company providing energy management services for commercial businesses with multi-site, geographically diverse facilities. Established in 2001, Burton works with clients to design and manage energy plans that reduce energy consumption, improve environmental performance, mitigate price risk, stabilize utility budgets, and lower overall energy operating costs. Its clients include many of the largest facility portfolio operators in retail, hospitality, financial services, restaurants, commercial real estate, and distribution in the United States. For more information, visit www.burtonenergygroup.com.

About Willdan

Willdan is a technical services company focused on energy and infrastructure solutions. These solutions include energy planning and analytics, consulting, software, public finance, engineering, and program implementation. Willdan serves utilities, state and local governments, and commercial customers in the United States and Canada. For additional information, visit Willdan's website at www.willdan.com or follow Willdan on LinkedIn and Facebook.

Forward-Looking Statements

Statements in this press release that are not purely historical are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. It is important to note that Willdan's actual results could differ materially from those in any such forward-looking statements. Factors that could cause actual results to differ materially include, but are not limited to, the risk factors listed from time to time in Willdan's reports filed with the Securities and Exchange Commission, including, but not limited to, the Annual Report on Form 10-K filed for the year ended January 2, 2026. Willdan cautions investors not to place undue reliance on the forward-looking statements contained in this press release. Willdan disclaims any obligation to, and does not undertake to, update or revise any forward-looking statements in this press release.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260505388406/en/

Al Kaschalk

Vice President

310-922-5643

akaschalk@willdan.com

Willdan Expands Commercial Energy Capabilities With Acquisition of Burton Energy Group