M&A Activity Report for the week of 2/13/2023 – 2/19/2023

Feb 20, 2023

Zweig Group is the leading AEC Industry, advisory service provider. We blend industry and sector knowledge with experience across the M&A lifecycle to help you capture value for shareholders. Reach our Mergers & Acquisitions Advisory team here.


Domestic Transactions:


Montrose Environmental Group (North Little Rock, AR), an environmental services firm, acquired Environmental Alliance (Wilmington, DE), an environmental engineering and consulting firm. Link to Details.



Weston & Sampson (Reading, MA), an interdisciplinary design, engineering, and environmental services firm, acquired Denis L. Maher Company (Sterling, MA), a water well firm whose services include well drilling, well cleaning, well redevelopment, video inspection, and pump repairs. Link to Details.



Multidisciplinary engineering, planning, and construction management firm Neel-Schaffer (Jackson, MS) acquired civil engineering firm Calvert-Spradling Engineers (West Point, MS). Link to Details.



Sustainability consultancy ERM (London, UK) acquired global climate adviser Coho (Bethesda, MD). Link to Details.



Ordiz-Melby Architects (Bakersfield, CA), an architectural firm, acquired KSA Group Architects (Bakersfield, CA), an architectural firm that provides architecture, site planning, interior design, and landscape architecture services. Link to Details.



PEA Group (Auburn Hills, MI), a site design services provider, acquired Russell Design (Northville, MI), a landscape architecture company. Link to Details.



Architecture and engineering firm Goodwyn Mills Cawood (Montgomery, AL) acquired architecture firm Walker Concepts Architecture (Charleston, SC). Link to Details.



Blackwell Engineering (Harrisonburg, VA), a civil and environmental engineering firm, and AES Consulting Engineers (Williamsburg, VA), a civil engineering and land planning firm, merged. Link to Details.


Global Transactions:


EDG Consulting (Fortitude Valley, Australia), a design, engineering, advice, and geosciences services provider, joined TYPSA Group (Madrid, Spain), a group of consulting engineering firms. Link to Details.



Environmental consulting and services firm RSK Group (Helsby, UK) acquired marine geoscience consultancy for the wind energy and telecommunications sectors Hydrofix (Cheshire, UK). Link to Details.



ABO-Group (Ghent, Belgium), a group of environmental companies, acquired SEGED (Saint-Maximin-la-Sainte-Baume, France), a consultancy specializing in environment, water, biodiversity, and ecology. Link to Details.



DLP Consulting Group (Bedford, UK), a group of companies providing town planning and development advice, acquired CASS Associates (Liverpool, UK), a multidisciplinary design firm. Link to Details.



The John F Hunt Group (Grays, UK), a group of companies focused on the construction industry, acquired RKD Consultant (Barking, UK), a geotechnical and structural engineering design specialist. Link to Details.



Architecture and design firms Architectus (Melbourne, Australia) and Conrad Gargett (Brisbane, Australia) entered a strategic business partnership and will merge later this year. Link to Details.


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.