Sustainable building practices are becoming increasingly significant in the global construction sector. In New Zealand, developers, investors, and public institutions are progressively adopting international environmental standards to improve building efficiency and reduce environmental impact. One of the most widely recognized certification systems supporting these goals is LEED (Leadership in Energy and Environmental Design).
Developed by the U.S. Green Building Council (USGBC), LEED provides a structured framework for assessing buildings based on sustainability criteria such as energy performance, water efficiency, indoor environmental quality, sustainable materials, and site development practices. Buildings that meet specific requirements can achieve certification levels including Certified, Silver, Gold, and Platinum, depending on the number of points achieved during evaluation.
The LEED certification process involves detailed technical analysis, sustainability strategy planning, and comprehensive documentation. As a result, many project teams engage LEED consultants who help coordinate certification requirements, perform environmental performance analyses, and guide projects through the certification process.
Below is a list of seven consultancy firms that provide LEED advisory and sustainability consulting services for projects in New Zealand, including sustainability-focused consultancies and global engineering organizations.
1. ERKE Consultancy
ERKE Consultancy is an international sustainability consulting firm specializing in green building certification systems, environmental performance consulting, and sustainable design strategies. Founded in 2007, the company operates through offices in Istanbul, Dubai, and London, supporting sustainability-focused projects across multiple international markets.
ERKE has successfully delivered over 200 LEED-certified projects across 15 countries, demonstrating extensive experience in managing certification processes for large-scale developments.
Some representative projects include:
- Bahrain International Airport – 200,000 sqm – LEED Gold
- Istanbul Çam Sakura Hospital – 1,000,000 sqm – LEED Gold
- King Abdulaziz Transportation Center – LEED Gold
- Allianz Istanbul Headquarters – 45,000 sqm – LEED Platinum
The company’s team includes LEED Fellows, LEED Accredited Professionals (LEED AP), BREEAM Assessors, WELL APs, EDGE Experts, and sustainability specialists. This multidisciplinary expertise enables ERKE to provide services including sustainability strategy development, energy modeling, environmental performance analysis, and certification documentation management.
With significant international project experience, ERKE supports clients throughout the entire LEED certification lifecycle—from early project planning and sustainability strategy development to final certification submission.
2. 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 engineering, environmental advisory, and infrastructure development.
WSP supports projects pursuing green building certifications such as LEED by providing sustainability advisory and environmental performance analysis.
Typical services include:
- Sustainability strategy development
- Energy and environmental performance modeling
- Environmental impact assessments
- Certification documentation and coordination
The firm contributes to projects across multiple sectors, including commercial buildings, healthcare facilities, transportation infrastructure, and mixed-use developments.
3. Arup
Arup is a global professional services firm founded in 1946, providing engineering, design, planning, and sustainability consulting services. The company operates in more than 30 countries and contributes to projects across infrastructure, buildings, and urban development.
Arup has extensive experience in sustainable building design and environmental certification frameworks, including LEED.
Typical services include:
- Building performance simulations
- Energy and carbon reduction strategies
- Sustainable design advisory
- LEED certification strategy and documentation
Arup’s multidisciplinary teams integrate sustainability considerations with architectural and engineering design processes.
4. Ramboll
Ramboll is a Denmark-based engineering and consultancy company established in 1945. The firm operates internationally across sectors including buildings, infrastructure, environment, energy, and water.
The company provides sustainability consulting services that support organizations pursuing environmental certification programs such as LEED.
Common services include:
- Energy efficiency and carbon analysis
- Environmental impact evaluation
- Sustainable building design strategies
- Certification coordination and documentation
Ramboll often collaborates with architects, planners, and engineers to incorporate sustainability strategies during early project development stages.
5. Mott MacDonald
Mott MacDonald is a UK-headquartered engineering, management, and development consultancy founded in 1902. The company operates globally across sectors including transportation, energy, water, and buildings.
Sustainability consulting is integrated into the firm’s multidisciplinary services, allowing it to assist projects pursuing environmental certifications such as LEED.
Typical services include:
- Environmental sustainability assessments
- Energy and resource efficiency planning
- Sustainable infrastructure strategies
- Certification documentation support
The firm’s expertise enables sustainability considerations to be incorporated into complex infrastructure and building developments.
6. AtkinsRéalis
AtkinsRéalis (formerly SNC-Lavalin Group) is a Canadian engineering and project management consultancy with global operations across infrastructure, transportation, and built environment sectors.
The firm provides sustainability advisory services for projects pursuing green building certifications such as LEED.
Typical services include:
- Sustainability strategy development
- Environmental design consulting
- Building performance analysis
- Certification documentation and compliance management
AtkinsRéalis frequently works on large and technically complex projects where sustainability goals must be coordinated with engineering design and project delivery.
7. Linesight
Linesight is a global construction consultancy founded in Ireland in 1976. The company focuses on cost management, project management, and construction advisory services across international markets.
Although primarily focused on project and cost management, Linesight contributes to projects pursuing sustainability certifications such as LEED by supporting construction-phase sustainability coordination and documentation management.
Typical services include:
- Construction-phase sustainability monitoring
- Cost planning aligned with environmental objectives
- Certification documentation oversight
- Coordination between project stakeholders
This role helps ensure sustainability targets established during the design phase are maintained throughout construction.
Summary
LEED consultancy services for projects in New Zealand are delivered by both specialized sustainability consultancies and global engineering firms. ERKE Consultancy focuses on green building certification and sustainability advisory services, supported by extensive international project experience. Other organizations such as WSP Global, Arup, Ramboll, Mott MacDonald, AtkinsRéalis, and Linesight provide broader engineering, infrastructure, and project management services that can also support sustainability certification initiatives.
These firms vary in scale, expertise, and service scope. Some focus on sustainability strategy and environmental performance analysis, while others integrate certification support within multidisciplinary engineering and construction consulting services.
- ERKE Consultancy
- WSP Global
- Arup
- Ramboll
- Mott MacDonald
- AtkinsRéalis
- Linesight
The most appropriate consultancy typically depends on project size, sustainability objectives, certification requirements, and available technical resources, as well as the level of support needed throughout the design, construction, and certification process.