Leading Northeast Engineering Firm, Lizardos Engineering, Joins Aeterna Group, Expanding Engineering Design Services Across all Markets

WASHINGTON, DC (October 5, 2026) - Signal Hill Equity Partners ("Signal Hill"), a middle-market private equity firm that invests in essential and regulated industries, announced today that Lizardos Engineering Associates D.P.C. ('Lizardos')¹, an engineering firm in New York with expertise in a wide variety of public markets, has joined Aeterna Group, a leading architecture and engineering collaborative focused on enhancing community life across the nation.

The addition of Lizardos¹ strengthens Aeterna Group's mechanical, electrical, and plumbing ('MEP') team capabilities across all end-markets. Lizardos¹ is the sixth firm to join Aeterna Group, which launched in June 2026, uniting CSArch¹, ZMM Architects and Engineers, Kluber Architects + Engineers, KGD Architecture, and Omni Associates Architects.

Founded in 1965, Lizardos¹ has spent more than 60 years building a strong reputation as engineers who lead in technological advances and remain at the forefront of the industry. Led by President and CEO, George Lombardo, P.E., Lizardos¹ empowers its engineers to think outside the box and push the envelope to design resilient and sustainable facilities that will endure long into the future. Lizardos¹ has completed more than 9,000 projects across 26 states on highly technical projects in a multitude of public markets. The Lizardos¹ leadership team will continue to guide the firm while supporting Aeterna Group's national expansion as a full-service architecture and engineering collective.

"Since Lizardos¹ was founded in 1965, our goal has been to serve as the engineering partner clients turn to when they need practical solutions and trusted guidance," said George Lombardo, President and CEO of Lizardos¹. "Joining Aeterna Group lets us keep doing exactly that with national resources behind us. Our clients will work with the same people they always have, now with a deeper bench to draw on for their largest capital programs."

"Lizardos¹ has earned the trust of their clients and the communities they serve for over sixty years," said Adam Krason, President and Managing Partner of Aeterna Group. "Their values, reputation, and commitment to client service align closely with ours. We are proud to welcome their team to Aeterna Group and look forward to building on that legacy, while expanding our engineering capabilities across all of our regions and strengthening our relationships as a result."

"The Lizardos¹ team has built a very strong and well-respected MEP practice serving the New York Tri-State market. Their commitment to innovation and designing enduring facilities makes them a perfect fit for what we're building with Aeterna. Combining their capabilities with Aeterna Group's national reach creates growth opportunities neither would have on its own. We are pleased to continue to partner with firms that share this standard of client service and attention to design excellence," said Ahmed Abdel-Saheb, CEO of Signal Hill Equity Partners.

Signal Hill Equity Partners received legal support from Taft Stettinius & Hollister LLP. Lizardos¹ was advised by Grassi Advisory Group, Inc., with legal support provided by Certilman Balin Adler & Hyman, LLP.

About Lizardos

With offices in Mineola and New York City, Lizardos¹ is a full-service mechanical, electrical, and plumbing (MEP) engineering firm founded in 1965. Lizardos¹ provides building systems engineering services, including mechanical/HVAC, electrical, plumbing, fire protection, IT/security, commissioning, energy, sustainability, and facility assessment services.

For more than 60 years, Lizardos¹ has built a reputation around their highly competent technical expertise, successful long-term client relationships, and their focus on designing for a sustainable future. The firm is particularly experienced with complex and technically demanding facilities, and its portfolio includes work for major healthcare, higher education, government, and mission critical facilities throughout the Northeast.

For more information, visit the Lizardos¹ website.

The Aeterna Group of Companies

CSArch¹ (Albany, NY) is a design-driven architecture and engineering firm serving education, civic/institutional, and corporate clients across New York State.

ZMM Architects and Engineers (Charleston, WV) is a leading architecture and engineering firm with a long history of legacy projects and deep community investment, with a strong portfolio spanning education, government, and healthcare across West Virginia, Virginia, and Ohio.

Kluber Architects + Engineers (Aurora, IL) is a full-service architecture and engineering firm serving government, education, healthcare, and corporate clients in the Chicago area and across Illinois.

KGD Architecture (Washington, DC) brings diverse perspectives to complex projects, designing places that serve communities across the DC-Maryland-Virginia region, with a strong focus on affordable housing, multifamily residential, institutional, corporate/commercial offices, and mixed-use projects.

Omni Associates Architects (Fairmont, WV) is a full-service architecture firm with a broad portfolio spanning corporate, government, healthcare, academic, recreational, and military facilities, known for a collaborative client process and a strong record of delivering innovative, cost-effective designs.

Lizardos Engineering Associates¹ (Mineola, NY) is a recognized leader in providing engineering services to numerous end-markets for more than 60 years, known for their highly competent technical expertise, successful long-term client relationships, and a focus on designing for a sustainable future.