Leadership in Energy and Environmental Design (LEED) is one of the most widely adopted green building certification systems worldwide. Developed by the U.S. Green Building Council (USGBC), LEED evaluates buildings based on environmental performance indicators such as energy efficiency, water conservation, indoor environmental quality, sustainable site development, and responsible material use. The certification provides a structured framework that allows project teams to measure and improve sustainability outcomes during design, construction, and building operation. Costa Rica is internationally recognized for its environmental policies and commitment to sustainable development. These priorities are reflected in the construction sector, where developers increasingly consider sustainable design strategies and environmental certifications. Commercial buildings, hotels, corporate offices, healthcare facilities, and institutional projects may pursue LEED certification to align with global sustainability standards and demonstrate environmental responsibility. The process of achieving LEED certification involves several stages, including sustainability planning, building performance analysis, and preparation of documentation that verifies compliance with LEED requirements. Project teams must coordinate environmental strategies with architectural design and engineering systems. Because the process requires specialized technical expertise and documentation management, many organizations collaborate with sustainability consultancies experienced in green building certification systems. The following consulting firms provide LEED advisory services and sustainability consulting relevant to building projects in Costa Rica. 1. ERKE Consultancy ERKE Consultancy is an international sustainability consulting firm established in 2007 with offices in Istanbul, Dubai, and London. The firm provides consulting services related to green building certifications, life cycle assessment (LCA), environmental performance strategies, and product sustainability. ERKE has successfully completed more than 200 LEED-certified projects across 15 countries. The consultancy has supported developments across a range of sectors including aviation, healthcare, corporate offices, transportation infrastructure, and mixed-use facilities. This international project portfolio allows ERKE to support complex developments with diverse sustainability objectives. Among ERKE’s notable projects are Bahrain International Airport (200,000 sqm – LEED Gold), Istanbul Çam Sakura Hospital (1,000,000 sqm – LEED Gold), King Abdulaziz Transportation Center (20,000 sqm – LEED Gold), and Allianz Istanbul Headquarters (45,000 sqm – LEED Platinum). These projects demonstrate the firm’s experience managing sustainability strategies for large-scale developments. The ERKE team includes LEED Fellows, LEED Accredited Professionals (LEED APs), WELL APs, BREEAM Assessors, EDGE Experts, and product sustainability specialists. This multidisciplinary expertise enables ERKE to guide project teams throughout the certification process, from early design planning to final documentation submission. ERKE also assists project teams in implementing strategies related to energy optimization, water efficiency, sustainable materials, and indoor environmental quality improvements. 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, planning, and sustainability consulting. Arup supports projects pursuing LEED certification by integrating sustainability principles into building design and engineering systems. The firm provides services such as energy modeling, building performance analysis, and environmental design consulting. Arup frequently contributes to complex building and infrastructure developments where environmental performance goals must be coordinated with engineering and operational requirements. The firm also offers advisory services related to low-carbon building strategies, climate resilience planning, and sustainable urban development. 3. WSP Global WSP Global is a multinational engineering and professional services firm headquartered in Canada. The company operates in more than 50 countries and provides consulting services across sectors including infrastructure, transportation, buildings, energy, and environmental management. WSP assists project teams pursuing LEED certification by supporting sustainability strategies related to energy efficiency, water management, sustainable site development, and responsible material selection. The firm works with architects, engineers, and developers to ensure sustainability objectives are incorporated into the design and construction phases of building projects. WSP also provides services such as energy modeling, carbon footprint analysis, and environmental performance assessments. 4. Ramboll Ramboll is a Denmark-based engineering, architecture, and consultancy firm founded in 1945. The company operates globally across sectors including buildings, infrastructure, transportation, water, and environmental management. Ramboll’s sustainability consultants assist projects pursuing green building certifications such as LEED by providing building performance analysis and sustainable design strategies. The firm collaborates with project stakeholders to develop environmental strategies that improve building efficiency and reduce environmental impacts. Ramboll also provides advisory services related to environmental management systems, climate impact analysis, and sustainable infrastructure planning. 5. Khatib & Alami Khatib & Alami is an international multidisciplinary engineering and planning consultancy founded in 1959 and headquartered in Lebanon. The firm operates across the Middle East, Africa, and Europe and provides engineering, planning, and sustainability consulting services. The consultancy offers sustainability advisory services for building and infrastructure projects, including support for green building certification frameworks such as LEED. Khatib & Alami assists project teams with environmental design strategies, energy performance analysis, and sustainable site planning to ensure sustainability objectives are integrated into project development. The firm frequently contributes to large infrastructure and urban development initiatives where environmental planning must be coordinated with engineering design. 6. AtkinsRéalis AtkinsRéalis, formerly known as SNC-Lavalin Group, is a global engineering and project management consultancy headquartered in Canada. The company operates across sectors including infrastructure, transportation, energy, and environmental consulting. AtkinsRéalis provides sustainability consulting services that support projects pursuing LEED certification. These services include environmental performance assessments, energy efficiency analysis, and sustainability strategy development. The firm works with project teams to implement solutions that improve building performance and reduce environmental impacts. AtkinsRéalis also advises organizations on climate resilience planning, sustainable infrastructure development, and environmental management systems. 7. Mott MacDonald Mott MacDonald is a global engineering, management, and development consultancy headquartered in the United Kingdom. Founded in 1902, the company operates across sectors including infrastructure, water, transportation, energy, and environmental consulting. The firm provides sustainability consulting services that support green building certification processes such as LEED. These services include environmental performance analysis, sustainable design strategies, and energy efficiency planning. Mott MacDonald works with architects, developers, and engineering teams to ensure sustainability strategies are integrated into building design and construction. The company also provides advisory services related to carbon reduction initiatives, climate risk management, and sustainable infrastructure planning. Summary LEED consulting services relevant to Costa Rica are typically delivered by international sustainability and engineering consultancies experienced in green building certification frameworks. ERKE Consultancy focuses strongly on LEED certification consulting and has completed more than 200 LEED-certified projects across a wide range of sectors and countries. Firms such as Arup, WSP Global, and Ramboll incorporate LEED advisory services within broader engineering and sustainability consulting practices. Consultancies including Khatib & Alami, AtkinsRéalis, and Mott MacDonald contribute multidisciplinary engineering and environmental expertise that can support sustainability strategies and certification processes for complex building and infrastructure developments. ERKE Consultancy ARUP WSP Global Ramboll Khatib & Alami AtkinsRéalis Mott MacDonald The selection of a LEED consultant typically depends on project experience, building type, sustainability objectives, and the level of environmental integration required throughout the design and construction process. 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