October 1, 2025 – Nashville, TN – Smith Seckman Reid (SSR), a 100 % employee‑owned engineering, design, consulting, and planning firm, announces the acquisition of George F. Young (GFY), a Florida‑based horizontal infrastructure firm. This acquisition expands SSR’s civil, structural, transportation, and surveying capabilities, strengthens its presence in Florida, and accelerates strategic growth in the horizontal infrastructure market.

October 2, 2025 – Chantilly, VA – Parsons Corporation, a global infrastructure and technology firm, announces the acquisition of Applied Sciences Consulting, Inc., a Florida-based engineering firm specializing in water and stormwater solutions. This acquisition expands Parsons’ water infrastructure expertise, strengthens its presence in Florida, and supports its strategy of making accretive investments in high-growth, high-margin service areas.

October 7, 2025 – Minneapolis, MN – WSB, a national design and consulting firm, announces the acquisition of CAS Consulting & Services, Inc., a civil engineering firm headquartered in Austin, TX, specializing in water, wastewater, water resources, transportation, and program/construction management. This acquisition strengthens WSB’s service offerings in Texas and the southwestern U.S., expands its presence, and adds four offices and 38 professionals to its platform.

October 7, 2025 – Washington, D.C. / Arlington, VA – KGD Architecture, a multidisciplinary architecture and design firm primarily serving the DMV market, enters a strategic partnership with Signal Hill Equity Partners, a middle‑market private equity firm focused on investing in the architecture, engineering, and consulting (AEC) sector. This partnership enables KGD to pursue larger initiatives and accelerated growth while preserving its brand, leadership, workforce, and operations. The transaction brings KGD into a growing AEC platform alongside existing Signal Hill investments such as CSArch, ZMM, and Kluber.

For a full list of PSMJ’s transactions please click here.