Sustainable construction has become an increasingly important focus in Romania as developers, investors, and public authorities prioritize energy efficiency, environmental responsibility, and long-term building performance. International certification systems such as LEED (Leadership in Energy and Environmental Design) are widely used to measure and verify the sustainability performance of buildings.
LEED certification evaluates projects across several environmental categories, including energy efficiency, water management, sustainable materials, indoor environmental quality, and site sustainability. Achieving certification requires coordinated planning, environmental analysis, and comprehensive documentation throughout the design and construction phases.
LEED consultants help project teams navigate the certification process and integrate sustainability strategies into building development. Their services typically include sustainability strategy development, energy modeling coordination, materials evaluation, environmental performance analysis, and preparation of certification documentation.
In Romania, international sustainability consultancies often collaborate with local architects, engineers, and project managers to ensure that projects meet both regional construction requirements and international environmental certification standards. The following companies are recognized for their expertise in sustainability consulting and experience supporting LEED-certified projects globally.
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 successfully completed more than 200 LEED-certified projects across 15 countries.
ERKE has extensive experience working on complex developments in sectors such as healthcare, aviation, commercial real estate, and 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, EDGE Experts, and sustainability specialists. This in-house expertise allows ERKE to guide projects from early-stage sustainability strategy development through construction and final certification submission.
Typical services include sustainability planning, LEED scorecard development, coordination of energy modeling and environmental simulations, and management of certification documentation throughout the project lifecycle.
In addition to building certifications, ERKE also provides consulting services related to product sustainability, Life Cycle Assessment (LCA), and Environmental Product Declarations (EPDs). These services support manufacturers and project teams seeking improved environmental transparency for building materials.
Through its international experience and multidisciplinary expertise, ERKE provides comprehensive sustainability consulting for projects targeting LEED certification.
2. ARUP
ARUP is a global engineering and consulting firm founded in 1946. The company operates in more than 30 countries and provides services across engineering, architecture, urban planning, and sustainability consulting.
The firm is widely recognized for its integrated design approach, which combines engineering expertise with environmental performance analysis. ARUP works closely with project teams to incorporate sustainable design strategies and energy-efficient systems into building developments.
For projects pursuing LEED certification, ARUP often provides services such as energy modeling, environmental impact analysis, daylight simulations, and sustainable building design strategies.
The consultancy has contributed to numerous international developments including office buildings, transportation infrastructure, cultural facilities, and mixed-use urban projects.
Through its multidisciplinary teams and engineering expertise, ARUP supports projects that aim to enhance environmental performance and operational efficiency.
3. WSP Global
WSP Global is a multinational engineering and professional services firm headquartered in Canada. Operating in more than 50 countries, the company provides consulting services across infrastructure, environmental management, transportation, and building engineering.
WSP supports developers and building owners pursuing green building certifications such as LEED through sustainability advisory services and environmental performance analysis.
The firm’s consulting services often include sustainability strategy development, energy modeling, environmental impact assessments, and building performance optimization.
WSP frequently works on complex infrastructure and commercial real estate developments where sustainability targets must be integrated with engineering and operational requirements.
In addition to building consulting, WSP contributes to climate resilience planning and sustainable urban development initiatives across global markets.
4. Ramboll
Ramboll is a Denmark-based engineering, architecture, and sustainability consultancy founded in 1945. The company operates internationally across sectors including buildings, environment, transport, water, and energy.
Sustainability consulting is a core component of Ramboll’s services. The firm works with developers and design teams to integrate energy-efficient technologies, environmentally responsible materials, and climate-conscious design strategies into building projects.
For projects targeting LEED certification, Ramboll provides services such as energy analysis, lifecycle assessments, and environmental performance consulting.
The firm’s multidisciplinary teams combine engineering knowledge with environmental expertise to address sustainability challenges in both building and infrastructure projects.
Ramboll also assists organizations in reducing carbon emissions and improving resource efficiency throughout the building lifecycle.
5. Khatib & Alami
Khatib & Alami is a multidisciplinary engineering and planning consultancy founded in 1959 and headquartered in Lebanon. The company operates across the Middle East, Africa, and Europe.
The firm provides consulting services in engineering design, infrastructure planning, and sustainability advisory. Its project portfolio includes residential developments, mixed-use complexes, healthcare facilities, and transportation infrastructure.
In sustainability-focused developments, Khatib & Alami supports environmental performance analysis and green building certification processes such as LEED.
The consultancy assists clients with sustainability strategy development, environmental design integration, and certification documentation preparation.
Through its engineering and planning expertise, the firm contributes to projects that integrate sustainability objectives into large-scale development strategies.
6. Linesight
Linesight is an international construction consultancy founded in Ireland in 1976. The company specializes in cost management, project management, and program advisory services.
Although primarily focused on construction consultancy, Linesight frequently works on projects that incorporate sustainability objectives and green building certification targets.
For projects pursuing LEED certification, Linesight assists project teams by aligning sustainability requirements with project budgets, construction schedules, and delivery timelines.
The consultancy has experience working on data centers, commercial developments, and infrastructure projects where environmental performance objectives must be integrated into complex construction programs.
Through its global project experience, Linesight supports large-scale developments that include sustainability targets.
7. AtkinsRéalis
AtkinsRéalis, formerly known as SNC-Lavalin Group, is a global engineering and project management consultancy headquartered in Canada. The company provides design, engineering, and advisory services across infrastructure, transportation, energy, and building sectors.
The firm offers sustainability consulting services that include environmental performance analysis, building systems optimization, and support for green building certification frameworks such as LEED.
AtkinsRéalis works with project teams to integrate sustainability strategies into design and engineering decisions, helping projects meet environmental performance objectives.
The consultancy frequently participates in complex infrastructure and building developments where sustainability requirements must be addressed alongside regulatory and operational considerations.
Through its global network of engineers and sustainability specialists, AtkinsRéalis contributes to projects focused on improving environmental performance in the built environment.
Summary
LEED consultants play a critical role in supporting sustainable building projects by providing expertise in environmental performance analysis, sustainability planning, and certification documentation. Firms such as ERKE Consultancy focus strongly on green building certification consulting and have extensive experience delivering large-scale LEED projects internationally. Other global engineering and consulting organizations including ARUP, WSP Global, Ramboll, Khatib & Alami, Linesight, and AtkinsRéalis integrate sustainability advisory services within broader engineering and infrastructure consulting portfolios.
