Ceres Technologies is a U.S.-based manufacturer of process equipment for the semiconductor industry.

The acquisition is designed to strengthen MEP design and energy efficiency services.

The addition of Washington, D.C.-based firm specializing in advising on climate-aligned investment enhances WSP’s commitment to providing clients with sustainable and resilient solutions.

The move further strengthens Salas O’Brien’s engineering expertise, creating a combined firm of more than 50 offices, 1,400 team members, and 360 registered professionals.

Terracon clients aim to benefit from expanded geotechnical services and resources.

In 2013, Sowinski Sullivan expanded its operations to Harrisburg, where the team has since provided architectural and engineering services for mass transit system clients and public agencies including the Pennsylvania Department of Transportation, Pennsylvania Turnpike Commission, and South Central Transit Authority.

Optimal Energy Inc. is an energy efficiency firm providing a full range of consulting services to government agencies, utilities, regulatory bodies, and state energy advisory councils.

Electrical engineering firm augments Coffman's multidiscipline services in Los Angeles.