Zweig Group M&A: HGA acquires Sustainable Engineering Group

Jul 10, 2018

HGA has acquired the Sustainable Engineering Group, a leading engineering firm focused on energy optimization and sustainable design. The acquisition of SEG, based in Madison, Wisconsin, reinforces and broadens HGA’s existing expertise in energy and infrastructure planning and design for leading national clients in healthcare, academic, corporate, and public sectors. Zweig Group, a full-service AEC consulting firm based in Fayetteville, Arkansas, represented buyer HGA in the introduction of the two firms. “We congratulate both sides on this union and think this will be beneficial for everyone involved. We are enthusiastic about the opportunities this will bring to both firms, and we look forward to a successful future.” HGA’s acquisition of SEG is Zweig Group’s third M&A closing this summer. Zweig Group was the buyer-side representative in Blueline’s merger with The LA Studio in Seattle, and in LACO’s acquisition of DobleThomas & Associates, Inc. in Northern California. HGA, with over 750 employees in 10 locations coast to coast, is looking to increase an already large footprint in the AEC industry. The SEG acquisition is part of HGA’s strategic focus on elevating its national excellence in sustainable design and energy planning. With the addition of Lisa Matthiessen as National Sustainable Design Director in 2017, HGA is building new structures and deepening its expertise to explore new directions in planning healthy buildings that help create a more profound impact for clients and end users. The acquisition was effective July 1. SEG officially will change its name to HGA and merge operational and administrative functions. “SEG’s approach and deep knowledge will allow us to better serve the energy needs of our growing client base,” said Rick Hombsch, PE, LEED AP, Vice President and HGA’s Energy & Infrastructure market leader. “Their team brings technical insights into emerging energy technologies and renewable resources that build on our existing strengths in high-performance energy systems, commissioning, retro-commissioning, energy auditing, and central energy plants. By combining forces, we are creating a more robust in-house practice that will enhance our capabilities to research, plan, and implement highly advanced energy systems that benefit our clients economically and environmentally.” About Zweig Group Zweig Group has on-staff experts in strategy, mergers and acquisitions, business valuation, ownership transition, marketing, business development, market research, financial management, project management, recruiting and executive search. Zweig Group also provides a comprehensive suite of products including newsletters, industry reports, executive training, business conferences and more covering virtually every aspect of firm management. The firm is headquartered in Fayetteville, Arkansas, and works throughout the U.S and worldwide. For more information, visit or call (800) 466-6275.

About Zweig Group

Zweig Group, three times on the Inc. 500/5000 list, is the industry leader and premiere authority in AEC firm management and marketing, the go-to source for data and research, and the leading provider of customized learning and training. Zweig Group exists to help AEC firms succeed in a complicated and challenging marketplace through services that include: Mergers & Acquisitions, Strategic Planning, Valuation, Executive Search, Board of Director Services, Ownership Transition, Marketing & Branding, and Business Development Training. The firm has offices in Dallas and Fayetteville, Arkansas.