Key Takeaways
- • GHK Capital Partners-backed WSB acquires Civil Infrastructure Associates, a Nashville-area municipal engineering firm founded in 2009, expanding WSB's Southeast footprint and municipal service capabilities.
- • WSB operates 50+ offices with ~1,800 staff and specializes in infrastructure design including roads, water/wastewater systems, environmental services, and construction—positioning the combined entity as a significant regional player in municipal engineering.
- • CIA brings specialized expertise in water/wastewater utilities, civil and site design, aviation infrastructure, surveying, and GIS services to municipalities and public agencies across the Nashville metropolitan area, directly complementing WSB's existing service lines.
- • Integration timeline set for 2026, with leadership emphasizing expanded client resources, enhanced capabilities, and staff growth opportunities; CIA founder Linda Sullivan remains engaged as president of the acquired firm.
- • Deal terms undisclosed, but transaction reflects GHK Capital's strategy of making control investments in industrial companies across North America while consolidating complementary service providers.
Summary
WSB, a Minneapolis-based infrastructure engineering firm and portfolio company of GHK Capital Partners, has acquired Civil Infrastructure Associates (CIA), a municipal engineering firm serving the Nashville metropolitan area. The transaction expands WSB's geographic reach and technical capabilities in the Southeast while consolidating complementary service lines within the infrastructure design sector.
WSB brings substantial scale to the combined entity, operating more than 50 offices with approximately 1,800 employees across disciplines including road design, water and wastewater systems, environmental services, and construction management. Civil Infrastructure Associates, founded in 2009 by Linda Sullivan, specializes in water and wastewater utilities, civil and site design, aviation infrastructure, surveying, and geographic information systems (GIS) services for municipalities and public agencies. These capabilities directly align with and enhance WSB's existing municipal and environmental practice areas.
Bret Weiss, WSB's president and chief executive officer, characterized the acquisition as a strategic strengthening of the firm's municipal, environmental, and surveying capabilities while building market presence in the Southeast. Sullivan, who will continue as CIA's president, emphasized that the partnership expands client access to resources and creates growth opportunities for staff. The two firms plan to complete service integration during 2026, suggesting a deliberate phased approach to combining operations rather than an immediate merger of functions.
GHK Capital Partners, the controlling investor in WSB, pursues control investments in industrial companies across North America, using platform acquisitions and add-on strategies to build scaled operators. While transaction terms were not disclosed, the deal reflects a consolidation trend in the engineering services sector where larger, well-capitalized firms acquire regional specialists to achieve geographic diversification and service breadth. For institutional investors monitoring infrastructure services, this transaction signals continued capital deployment in the sector and operational integration focused on municipal and environmental infrastructure.
WSB brings substantial scale to the combined entity, operating more than 50 offices with approximately 1,800 employees across disciplines including road design, water and wastewater systems, environmental services, and construction management. Civil Infrastructure Associates, founded in 2009 by Linda Sullivan, specializes in water and wastewater utilities, civil and site design, aviation infrastructure, surveying, and geographic information systems (GIS) services for municipalities and public agencies. These capabilities directly align with and enhance WSB's existing municipal and environmental practice areas.
Bret Weiss, WSB's president and chief executive officer, characterized the acquisition as a strategic strengthening of the firm's municipal, environmental, and surveying capabilities while building market presence in the Southeast. Sullivan, who will continue as CIA's president, emphasized that the partnership expands client access to resources and creates growth opportunities for staff. The two firms plan to complete service integration during 2026, suggesting a deliberate phased approach to combining operations rather than an immediate merger of functions.
GHK Capital Partners, the controlling investor in WSB, pursues control investments in industrial companies across North America, using platform acquisitions and add-on strategies to build scaled operators. While transaction terms were not disclosed, the deal reflects a consolidation trend in the engineering services sector where larger, well-capitalized firms acquire regional specialists to achieve geographic diversification and service breadth. For institutional investors monitoring infrastructure services, this transaction signals continued capital deployment in the sector and operational integration focused on municipal and environmental infrastructure.
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