Peak Utility Services Group
Greenbelt's 2026 investment in an outsourced provider of maintenance, repair, and upgrade services for the utility sector — specializing in resiliency solutions that support critical energy infrastructure.
Visit peakusg.comSomeone Has to Keep the Grid Running
Peak Utility Services (“Peak”) serves as a critical partner to the nation's leading utilities, providing a comprehensive suite of maintenance, repair, and upgrade (“MRU”) services that ensure the safety and reliability of the country's electric, gas, and telecommunications networks.
Headquartered in Broomfield, Colorado, Peak operates with roughly 2,800 employees across 15 states, enhancing system integrity, contributing to emissions reductions, and facilitating infrastructure upgrades through its subsidiaries.
Greenbelt made a strategic investment in Peak in 2026, partnering with a veteran management team with deep industry experience and a history of successful M&A.
The Maintenance Layer of Critical Infrastructure
Peak Utility Services Group Is Formed
In the years that follow, Peak acquires subsidiaries Kelly Cable, Riley Brothers, Superior Pipeline Services (SPS), and 5 Star Electric.
Michael Lennon Joins as CEO
Lennon brings decades of experience in M&A and organic value creation to the platform.
Greenbelt Invests in Peak
Greenbelt makes a strategic investment in Peak to further support the company's continued growth.
Large Programmatic Work Across Utilities
Backed by decades of industry experience, Peak continues to execute on large programmatic work across gas, electric, and telecom utilities.
Built for a Grid Under Rising Strain
Federal and state regulatory mandates support long-term demand for utility upgrades and replacements. Electric utility infrastructure faces mounting challenges from aging assets, load growth, and frequent weather events, while gas distribution requires many years of grid-modernization work to replace leak-prone materials.
Aging utility infrastructure is also a major barrier to a lower-carbon, climate-resilient economy — contributing to system-wide emissions through methane leakage and energy losses. Peak's core services directly address these vulnerabilities, upgrading, retrofitting, and modernizing mission-critical electric, gas, and telecom infrastructure across aging U.S. networks.
“We believe Peak's services are more critical than ever. We look forward to supporting Michael and the management team as they take advantage of this growing demand.”Chris Murphy · Partner, Greenbelt Capital
The Work That Keeps the Lights On
Peak is one of only a handful of utility-services platforms with national scale and diversified capabilities across electric, gas, and telecom — with deeply entrenched relationships with major utilities across the U.S. It is a clear expression of how Greenbelt invests in the systems that keep the energy economy running.
Information presented for illustrative purposes only. Past performance is not indicative of future results. Peak Utility Services Group is a current portfolio company of Greenbelt. Certain statements herein are based on Greenbelt's beliefs and are not intended as statements of fact or any representation that stated outcomes will be achieved.