FMI Advises Ally Energy Solutions in Sale of Majority Interest to Nuveen
FMI Capital Advisors is pleased to announce Ally Energy Solutions, LLC (Ally), a comprehensive energy solutions provider serving commercial and industrial (C&I) customers across the United States, has sold a majority interest to Nuveen Private Equity Impact. FMI Capital Advisors served as the exclusive financial advisor to Ally for this transaction.
Founded in 2014, Ally serves a unique segment of the market, executing complex energy projects nationally for large C&I clients. The company delivers turnkey power solutions, including distributed clean energy resources, power factor correction, back-up power generation, electrical infrastructure upgrades and energy efficiency measures.
Following the transaction, Brian Walterbach will assume the role of Chief Executive Officer, succeeding Shane Mathis, who will transition into the role of Chief Strategic Officer. Mr. Walterbach has led day-to-day operations and sales at Ally and brings deep operational expertise and a compelling vision for the company’s future.
“Our national implementation capability has positioned Ally as a preferred long term execution partner for Fortune 500 clients seeking scalable, multi-site energy upgrades,” said Walterbach. “Nuveen’s investment will accelerate our next phase of growth and impact, helping us expand our reach and deepen our ability to deliver measurable operating cost and emissions reductions for clients nationwide.”
“Continued growth in electrification, data centers and advanced manufacturing is driving unprecedented demand for power and electrical services,” said Ted Maa, Managing Director of Private Equity Impact Investing at Nuveen. “Ally’s impressive results and growth to-date align well with our Climate Inclusion goal of providing clean, resilient power to mission-critical C&I end users. We’re thrilled to partner with management in this next phase of growth.”
To date, Ally has completed over 1,000 energy projects, resulting in approximately 578,000 tons of cumulative carbon dioxide emissions avoided, 60 MW of grid peak load reduction, $276 million in customer cost savings and $55 million in cash credits generated.
Dentons US LLP acted as legal advisor to Ally.
ABOUT ALLY ENERGY SOLUTIONS
lly Energy Solutions is a comprehensive provider of energy solutions, serving commercial and industrial customers across the United States. The company delivers energy efficiency measures as well as turnkey power solutions, including distributed clean energy resources, power factor correction, back-up power generation, and electrical infrastructure upgrades. Ally Energy Solutions was founded in 2014 and is headquartered in Kansas City. For more information, please visit: https://ally-energy.com/.
ABOUT NUVEEN
Nuveen, the investment manager of TIAA, offers a comprehensive range of outcome-focused investment solutions designed to secure the long-term financial goals of institutional and individual investors. Nuveen has $1.3 trillion in assets under management as of 30 June, 2025 and operations in 32 countries. Its investment specialists offer deep expertise across a comprehensive range of traditional and alternative investments through a wide array of vehicles and customized strategies. For more information, please visit www.nuveen.com.
ABOUT FMI CAPITAL ADVISORS
FMI Capital Advisors has dedicated and deeply experienced investment banking teams advising clients on merger and acquisition (M&A) transactions across the built environment. We maximize outcomes for our clients through our deep market knowledge, strong technical expertise and an unparalleled network of industry relationships. For more information, visit FMI Capital Advisors.
FMI Capital Advisors Contacts:
Russell Clarke
Managing Director
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303.398.7213
Kate Saulenas
Associate
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303.398.7239