Optimum Energy Co., a global holistic infrastructure solutions company, today announced the acquisition of Hussung Mechanical Contractors and HMC Service Company, a full-service mechanical infrastructure services firm for healthcare systems, universities, manufacturers, data centers and mission critical facilities across the Mid-South for over 60 years. Hussung will continue operating under its own name as HMC, as part of the Optimum Energy group.

 

“My grandfather and his brother started this company with a straightforward promise: do quality work, act with integrity, and take care of the customer. Six decades later, that promise is still the reason customers call us and the reason people build careers here. This partnership gives HMC the platform to grow faster and smarter without changing the foundation that made this company worth building in the first place.”

David C. Hussung, CEO, Hussung Mechanical Contractors/HMC Service Company

Optimum Energy, a Bernhard Capital Partners portfolio company, is a global leader in holistic infrastructure solutions, delivering integrated services across the full facility lifecycle for mission-critical facilities. From engineering, design, and construction through central utility plant development, ongoing operations and maintenance, and long-term performance optimization, Optimum Energy serves healthcare systems, universities, and manufacturers at scale. Its proprietary AI technology draws on 20 years of central plant performance data, and its dedicated Remote Services team monitors and optimizes facility systems continuously across its global portfolio.

 

“Hussung has built exactly the kind of organization we want to grow alongside. Their technical depth, their culture of accountability, and the reputation they have earned over 60 years are real and rare. We are adding a team that makes the entire platform stronger.”

Lisa Roy, CEO and President, Optimum Energy

 

“This is a milestone we have worked toward carefully and with a lot of intention. Joining the Optimum Energy Team gives us the resources and reach to take on more complex work and create more opportunity for our team, while staying true to the core values we have always held.”

Corey Cousino, President, Hussung Mechanical Contractors

The addition of HMC’s mechanical contracting and field service expertise expands Optimum Energy’s in-house execution capability and strengthens its ability to self-perform across every phase of the infrastructure lifecycle. For customers seeking access to this full platform without upfront capital, Optimum Energy’s Energy-as-a-Service model provides flexible, off-balance sheet financing structures.

About Optimum Energy Co.

Optimum Energy Co. is a global holistic infrastructure solutions company serving mission-critical facilities across healthcare, higher education, and advanced manufacturing. The company delivers integrated infrastructure services spanning the full facility lifecycle: engineering, design, construction, central utility plant development and modernization, mechanical and energy systems, ongoing O&M and asset management, and mechanical contracting and field services through HMC. Built on 20 years of central plant performance data, proprietary AI technology, and a dedicated Remote Services team that monitors and optimizes facility systems continuously across its global portfolio, Optimum Energy delivers sustained performance improvements that no traditional O&M provider can match. Its Energy-as-a-Service (EaaS) model enables clients to access this full platform through flexible, off-balance sheet financing structures, accelerating cost savings and performance goals without upfront capital commitment. Optimum Energy Co. LLC is a portfolio company of Bernhard Capital Partners, a services- and infrastructure-focused private equity firm. For more information, visit www.optimumenergyco.com

About Hussung Mechanical Contractors and HMC Service Company

Hussung Mechanical Contractors / HMC Service Company are a 4th generation family-owned and operated mechanical contractor and service company specializing in the design, installation, and service of HVAC, plumbing, medical gas, and piping systems for healthcare, higher education, manufacturing, and mission critical facilities, as well as other commercial and industrial sectors. The companies have been serving these industries in Kentucky and Indiana since 1966, delivering high-quality and innovative solutions for complex and challenging projects. Its objectives are to build long-term relationships with their clients, based on trust, respect, and collaboration. There is a commitment to providing the best value for clients, by delivering projects on time, on budget, and with the highest standards of quality and safety.

About Bernhard Capital Partners

Bernhard Capital Partners is a private markets investment firm focused on building market-leading infrastructure services and asset platforms across essential sectors. With more than $6 billion in assets under management, the firm invests in complex, expansive and often regulated markets characterized by durable demand. Bernhard applies a disciplined, thematic investment strategy, paired with deep sector expertise and operational experience, to enhance performance, scale platforms and support long-term growth. Bernhard’s specialized approach is designed to perform across market cycles, delivering consistent outcomes for investors, partners and communities served across the portfolio. For more information, visit bernhardcapital.com.

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