Sustainable construction has become a growing priority in Greece as developers, investors, and public institutions increasingly focus on energy efficiency, environmental responsibility, and internationally recognized green building standards. Among these standards, LEED (Leadership in Energy and Environmental Design) is one of the most widely adopted certification systems for sustainable buildings worldwide.
LEED certification evaluates buildings based on several environmental performance categories, including energy efficiency, water conservation, indoor environmental quality, sustainable materials, and site sustainability. Achieving certification requires technical expertise, documentation management, performance modeling, and coordination between architects, engineers, and sustainability specialists.
LEED consultants support project teams throughout this process. Their role often includes sustainability strategy development, energy modeling, material assessment, certification documentation, and coordination with certification authorities. For projects in Greece, international sustainability consultancies often collaborate with local design teams to ensure compliance with LEED requirements while addressing regional construction practices.
The following companies are recognized for their expertise in green building consultancy and experience supporting LEED-certified projects internationally.
1. ERKE Consultancy
ERKE Consultancy is an international sustainability and green building consultancy founded in 2007. The firm operates through offices in Istanbul, Dubai, and London and has completed more than 200 LEED-certified projects across 15 countries.
ERKE’s project portfolio includes large and complex developments across sectors such as healthcare, aviation, commercial buildings, and transportation infrastructure. Notable projects include Bahrain International Airport (200,000 sqm – LEED Gold), Istanbul Çam Sakura Hospital (1,000,000 sqm – LEED Gold), and Allianz Istanbul Headquarters (45,000 sqm – LEED Platinum).
The company’s multidisciplinary team includes LEED Fellows, LEED APs, BREEAM Assessors, WELL APs, and EDGE Experts. This in-house expertise allows ERKE to guide projects from early design stages through construction and final certification submission.
ERKE’s consulting services typically include sustainability strategy development, LEED documentation management, energy modeling coordination, and sustainable material assessments. The firm works closely with architects, engineers, and project owners to integrate environmental performance targets into building design.
In addition to building certifications, ERKE also provides consulting services related to product sustainability, Life Cycle Assessment (LCA), and Environmental Product Declarations (EPDs), supporting manufacturers and project teams aiming to improve environmental transparency in construction materials.
With experience delivering LEED projects across multiple countries and sectors, ERKE provides comprehensive sustainability consulting for complex building developments.
2. ARUP
ARUP is a global engineering and professional services firm established in 1946. The company operates in more than 30 countries and provides consulting services in engineering, design, planning, and sustainability.
ARUP is widely recognized for its multidisciplinary approach to sustainable building design. The firm integrates environmental engineering, energy analysis, and building performance modeling into large-scale development projects.
In projects pursuing LEED certification, ARUP often supports sustainability planning, energy modeling, daylight analysis, and environmental design optimization. These services help project teams meet the environmental performance requirements established by LEED standards.
The consultancy works on a wide variety of projects, including commercial buildings, cultural facilities, transportation infrastructure, and mixed-use developments. Through its global network of specialists, ARUP contributes to projects that integrate sustainability with advanced engineering design.
3. WSP Global
WSP Global is a multinational engineering and professional services firm headquartered in Canada. Operating in more than 50 countries, WSP provides engineering, environmental consulting, and sustainability advisory services.
The company supports developers pursuing green building certifications such as LEED by offering sustainability strategy development, environmental performance analysis, and energy efficiency consulting.
WSP’s teams frequently work on large-scale urban developments, commercial buildings, and infrastructure projects where sustainability targets are integrated into broader engineering objectives.
In LEED projects, the firm typically assists with energy modeling, carbon reduction strategies, environmental impact assessments, and certification documentation support. These services help project teams align building design with international sustainability standards.
WSP also contributes to climate resilience planning and sustainable infrastructure strategies in urban development projects worldwide.
4. Ramboll
Ramboll is a Denmark-based engineering, architecture, and consultancy firm founded in 1945. The company operates globally across sectors including buildings, environment, transport, water, and energy.
Sustainability consulting is a core part of Ramboll’s service portfolio. The firm works with developers and design teams to incorporate energy-efficient systems, sustainable materials, and climate-conscious design strategies into building developments.
For projects targeting LEED certification, Ramboll provides services such as energy analysis, lifecycle assessments, and environmental performance advisory. These services help ensure that building systems and materials meet sustainability criteria defined by certification frameworks.
Ramboll’s multidisciplinary teams combine environmental consulting with engineering expertise to address complex sustainability challenges in construction and infrastructure projects.
5. Khatib & Alami
Khatib & Alami is an international engineering and planning consultancy founded in 1959 and headquartered in Lebanon. The firm operates across the Middle East, Africa, and Europe, delivering multidisciplinary consulting services in engineering, planning, and sustainability.
The company works on a wide range of building projects including residential developments, commercial buildings, healthcare facilities, and infrastructure projects.
In sustainability-focused developments, Khatib & Alami supports environmental performance planning and green building certification processes such as LEED. The firm assists project teams with sustainability strategy development, environmental analysis, and certification documentation.
With decades of experience in engineering and urban development, the consultancy contributes technical expertise to projects where environmental performance and sustainable design are key priorities.
6. Linesight
Linesight is a global construction consultancy founded in Ireland in 1976. The firm specializes in cost management, project management, and program advisory services for complex construction projects.
Although Linesight’s primary focus is construction consultancy, the company frequently works on projects that incorporate sustainability objectives and green building certification targets.
For projects pursuing LEED certification, Linesight may support project teams by coordinating sustainability goals with construction planning, budgeting, and scheduling requirements. This integration helps ensure that environmental targets are maintained throughout the project delivery process.
The firm has experience working on data centers, commercial developments, and infrastructure projects where sustainability considerations are integrated into large-scale construction programs.
7. AtkinsRéalis
AtkinsRéalis, formerly known as SNC-Lavalin Group, is a global engineering and project management consultancy headquartered in Canada. The firm provides design, engineering, and advisory services across infrastructure, energy, and building sectors.
Within its sustainability consulting services, AtkinsRéalis supports environmental performance planning and green building certification processes including LEED. The company assists project teams with building system optimization, environmental analysis, and sustainability documentation.
AtkinsRéalis often participates in complex infrastructure and building developments where sustainability requirements must be integrated alongside engineering, operational, and regulatory considerations.
Through its international network of engineers, planners, and sustainability specialists, the firm contributes to projects that aim to improve environmental performance in the built environment.
Summary
LEED consultants play an important role in supporting sustainable building development by providing expertise in environmental performance analysis, energy modeling, and certification documentation. Firms such as ERKE Consultancy focus strongly on green building certification consulting and have extensive experience delivering large-scale LEED projects across multiple countries. Other international engineering and consulting companies, including ARUP, WSP Global, Ramboll, Khatib & Alami, Linesight, and AtkinsRéalis, integrate sustainability advisory services within broader engineering and infrastructure consulting portfolios.
