August 12, 2025 – Jericho, NY – J.S. Held, a global technical and forensic advisory consulting firm based in Jericho, New York, acquires GHL Consultants Ltd., a Vancouver-based fire engineering and building code consulting firm. The acquisition broadens J.S. Held’s fire safety, building code compliance, and forensic capabilities in Western Canada.

August 12, 2025 – Minneapolis, MN and Detroit, MI – Providus Capital Partners, a private equity firm focused on growth in the A/E space, announces a strategic partnership with Wold Architects & Engineers, a national architecture and engineering firm. The partnership is expected to accelerate Wold’s continued expansion across public sector markets.

August 11, 2025 – Chicago, IL – DB Sterlin Consultants, Inc., a Chicago-based civil engineering firm, acquires M Squared Engineering, LLC, a Cedarburg, Wisconsin–based civil engineering firm known for water resources, transportation engineering, site development, land surveying, and municipal infrastructure work. The acquisition expands DB Sterlin’s geographic footprint and enhances its technical capabilities in complex water and transportation engineering markets.

August 7, 2025 – Southfield, MI – Atwell, a multidisciplinary engineering and infrastructure firm based in Southfield, Michigan, acquires a majority stake in Centurion Power, a Washougal, Washington–based provider of third-party electrical acceptance testing, inspection, certification, and commissioning services. The deal adds critical capabilities to Atwell’s energy and power service offerings.

August 5, 2025 – New York, NY, and Rome, GA – The Vertex Companies, LLC (VERTEX), a professional services firm headquartered in Detroit, Michigan, acquires ADAMS Management Services Corporation, a Georgia-based healthcare program and project management firm. The acquisition significantly boosts VERTEX’s healthcare delivery expertise and national project reach.

August 4, 2025 – Indianapolis, IN – Egis, a global leader in architecture, consulting, construction engineering, operations, and mobility services, joins forces with H.W. Lochner, Inc., a Chicago‑headquartered, 80‑year‑strong U.S. engineering firm specializing in aviation, surface transportation, transit and rail, and water/wastewater services. This strategic merger significantly expands Egis’s presence in the U.S., combining expertise across 19 U.S. offices and 54 Lochner locations to drive organic and acquisitive growth across transportation, water, energy, and environmental markets.

August 4, 2025 – Covington, LA – Ampirical Solutions, LLC (Ampirical), an engineering and software services provider serving the power sector and headquartered in Covington, Louisiana, acquires Cappstone Energy Group, a utility engineering firm known for GIS development, distribution system planning, and line design. This acquisition strengthens Ampirical’s utility infrastructure services.

July 31, 2025 – Denver, CO – Spheros Environmental, a science-first environmental consulting firm based in Denver, Colorado, announces the acquisition of Four Peaks Environmental Science and Data Solutions, a respected Wenatchee, Washington–based environmental science and data solutions provider. The acquisition enhances Spheros’ capabilities in watershed science, habitat assessments, and regulatory compliance.

July 31, 2025 – New York, NY – Naik Consulting Group, a New York/New Jersey–based multi‑discipline engineering firm, announces a strategic partnership with Trilon Group, a family of infrastructure consulting businesses. Naik will merge with CME Associates (Parlin, NJ) and Churchill Consulting Engineers (Berlin, NJ) to form a stronger regional platform better equipped for complex infrastructure projects while preserving their values and client relationships.

July 23, 2025 – Huntsville, AL – McMillan Pazdan Smith, a regional architecture, interior design, and advisory firm based in the Southeast, acquires Fuqua & Partners Architects, a Huntsville, Alabama–based architecture and interior design firm. The acquisition marks a strategic expansion into Huntsville and Southern Tennessee, enhancing McMillan Pazdan Smith's local design capabilities and project delivery in the region.

July 14, 2025 – Burlington, MA / Columbia, SC – CSL Consulting LLC, a portfolio company of NMS Capital, expands further into the Southeastern U.S. with the acquisition of Brownstone Construction Group LLC, a Columbia, South Carolina–based program management and owner’s representation firm specializing in public K‑12, higher education, healthcare, municipal, and civil projects.

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