Crest Rock Partners Announces Strategic Investment in Andrew Site Work

Denver, CO - June 30, 2026 - Crest Rock Partners ("Crest Rock"), a Denver-based private equity firm investing in lower middle market industrial, software, technology, and services businesses, today announced a strategic growth investment in Andrew Site Work (the "Company"). The investment will support further geographic growth and new utility service offerings to build upon the Company's exceptional track record of customer service and success in complex infrastructure projects.

Founded in 2008 by Ralph Andrew and headquartered in Fort Myers, Florida, Andrew Site Work conducts installation and maintenance activities for municipalities, counties, utility districts, and private organizations. The Company has strong expertise in upgrades and maintenance of water main and sewer systems, repair and maintenance of water and sewer treatment facilities, and other underground utility activities. In addition to its self-performance capabilities, Andrew Site Work has design-build and construction manager at risk capabilities.

The Company's work has been instrumental in supporting Southwest Florida's rapid growth and the continued upgrading of its legacy infrastructure. In partnership with Crest Rock, the Company will continue to work closely with its local government partners to build and ensure the quality of this infrastructure for years to come. Alongside this, the Company will continue to develop relationships with new government and private partners within and adjacent to its current footprint.

"We are thrilled to be partnering with Crest Rock as we continue to grow our business after nearly two decades of operation," said Ralph Andrew, Founder of Andrew Site Work. "As a native of the Fort Myers region, I was first and foremost focused on finding a partner that shared my commitment to this community and the employees who built this business. After a number of discussions with Crest Rock, I found the team to be the perfect fit. Crest Rock's experience in the infrastructure space, knowledge in scaling businesses, and operational capabilities will be instrumental for Andrew Site Work's next stage of growth."

"Andrew Site Work has built a reputation for reliability and excellence across Southwest Florida. The Company's technical capabilities and its commitment to delivering the highest quality work have allowed the business to thrive and earn the trust of its government partners," commented Andrew Carlin, a Principal at Crest Rock. "We always look for businesses with strong operations, and the Andrew Site Work team has a great track record of seamlessly executing on projects ranging from emergency fixes to complex replacements. We're excited to be partnering with them and to help guide the team on the next step of their growth journey."

About Crest Rock Partners

Crest Rock Partners is a Denver-based private equity firm focused on the lower middle market. Founded in 2019, the firm seeks investment opportunities where it can leverage its principals' extensive operating and investing experience to help companies execute their strategic growth initiatives. Through the team's completion of over 65 acquisitions, divestitures, mergers, and integrations, Crest Rock has developed a differentiated investment process and partnership approach, working with management, founders, and other shareholders to establish alignment and achieve mutual objectives. Crest Rock targets control investments across multiple industry verticals, including industrial services, manufacturing, IT services, tech-enabled business services, software, and technology, with enterprise values ranging from $25 million to $200 million. For more information about Crest Rock, please visit https://www.crestrockpartners.com.

About Andrew Site Work

Founded in 2008 by Ralph Andrew and headquartered in Fort Myers, Florida, Andrew Site Work is a public infrastructure contractor operating across Southwest Florida with expertise in water, sewer, drainage, and other critical underground utility work. The company regularly performs retrofit, installation, and emergency repair activities for local counties, cities, and municipalities. In addition to its strong self-performance capabilities, Andrew Site Work provides design-build, construction manager at risk, and engineering services. Learn more at andrewsitework.com.