14 companies

Guernsey

Employee-owned multidisciplinary design and consulting firm providing engineering, architecture, planning and environmental services to government, military, utility and private-sector clients.

Valdes Architecture & Engineering

Valdes Architecture & Engineering is a US-based multidisciplinary firm delivering engineering, architecture, and project management services for capital projects in sectors including oil & gas, utilities, chemicals, and transportation.

EXP

EXP is a century-old employee-owned engineering, architecture, and consulting firm serving the built and natural environments from its base in Canada.

ISG

Employee-owned architecture, engineering, environmental and planning firm serving utility, infrastructure, industrial and manufacturing clients through 20 offices in nine US states.

GHD

GHD is a global, employee-owned professional services company delivering engineering, architecture, environmental consulting, digital, and construction services across 135+ countries.

Burns & McDonnell

Burns & McDonnell is a 100% employee-owned engineering, architecture, construction, environmental and consulting firm that designs and builds critical infrastructure.

Pond

Pond, an ENERCON Company, is an Atlanta-based A/E/C consulting firm providing engineering, architecture, planning and construction management services across 50 US states and 29 countries.

Ramboll

Ramboll is a foundation-owned architecture, engineering and consultancy firm with 18,000+ experts in 35 countries, working on resilient power grids, sustainable data centres, climate adaptation and biodiversity.

Stantec

Stantec is a global engineering, architecture, and environmental consulting firm delivering sustainable infrastructure and facilities projects across six continents.

SSOE Group

SSOE Group is an employee-owned architecture and engineering firm providing full-service AEC solutions across the US, India, and Mexico.

McCall Thomas Engineering

McCall-Thomas Engineering is an employee-owned firm providing electrical, telecommunications, and civil engineering services to utilities and industrial clients in the Southeast United States.

CIMA+

CIMA+ is one of Canada's largest private consulting engineering firms, providing multidisciplinary services across infrastructure, energy, transportation, and building sectors from over 40 offices.

Power System Engineering

Arcadis

Arcadis is a global design, engineering and consultancy firm working on energy, water, transport and infrastructure assets, with 36,000+ staff in over 30 countries and €5bn in 2024 revenues.