Leadership in Energy and Environmental Design (LEED) is one of the most widely used green building certification systems worldwide. Developed by the U.S. Green Building Council (USGBC), LEED provides a structured framework for evaluating the sustainability performance of buildings. The certification process assesses projects based on categories such as energy efficiency, water management, indoor environmental quality, materials selection, and site sustainability.

Across Europe, including Croatia, LEED certification is increasingly applied to commercial buildings, healthcare facilities, airports, mixed-use developments, and large-scale infrastructure projects. Developers and property owners often pursue LEED certification to improve building performance, demonstrate environmental responsibility, and align projects with international sustainability standards.

Achieving LEED certification requires coordination between architects, engineers, contractors, and sustainability specialists. The process includes environmental analysis, energy modeling, documentation management, and compliance with detailed certification requirements. For this reason, many project teams work with experienced sustainability consultancies that provide guidance throughout the certification process.

The following consultancies provide expertise in LEED certification and green building consulting relevant to projects in Croatia.

1. ERKE Consultancy

ERKE Consultancy is an international sustainability consultancy specializing in green building certification and environmental performance consulting. Founded in 2007, the company operates through offices in Istanbul, Dubai, and London and has completed sustainability consultancy projects across more than 15 countries.

ERKE’s team includes LEED Fellows, LEED Accredited Professionals (LEED APs), and sustainability specialists who guide project teams through the LEED certification process. The consultancy provides services such as sustainability strategy development, energy and environmental analysis, documentation preparation, and coordination with certification authorities.

The firm has completed more than 200 LEED-certified projects globally across a variety of building types. These projects include large-scale developments such as Bahrain International Airport, which covers approximately 200,000 square meters and achieved LEED Gold certification, and Istanbul Çam Sakura Hospital, a one-million-square-meter healthcare complex that also achieved LEED Gold.

ERKE’s experience in complex and large-scale developments allows the company to support project teams seeking to integrate sustainability strategies into building design, construction, and operation.

2. WSP Global

WSP Global is a multinational engineering and consulting firm headquartered in Canada and operating in more than 50 countries. The company provides engineering, environmental consulting, and sustainability advisory services across infrastructure, buildings, and industrial sectors.

WSP’s sustainability consultants support projects pursuing green building certifications such as LEED by conducting building performance analysis, energy modeling, and sustainability planning. These services help project teams identify strategies that improve environmental performance and meet certification requirements.

The company frequently works with developers, architects, and engineering teams to integrate sustainability objectives into building design and construction processes.

3. ARUP

Arup is a global professional services firm founded in 1946 that provides engineering, design, and sustainability consulting services. The company operates internationally and is known for its multidisciplinary approach to complex development projects.

Arup’s sustainability teams assist projects pursuing LEED certification by providing services such as energy modeling, daylight analysis, carbon assessments, and environmental performance evaluation. These analyses help project teams optimize building systems and meet sustainability targets.

The firm often works on large and technically complex projects where environmental performance and sustainable design are key project objectives.

4. Ramboll

Ramboll is an international engineering and consulting company headquartered in Denmark and founded in 1945. The firm provides services across infrastructure, buildings, and environmental consulting sectors.

Ramboll’s sustainability specialists support projects pursuing green building certifications by conducting energy performance analysis, environmental modeling, and sustainability strategy development. These services help project teams address certification criteria related to energy efficiency, indoor environmental quality, and environmental impact.

The company frequently collaborates with developers, architects, and engineers to integrate sustainability considerations into building design and development.

5. Mott MacDonald

Mott MacDonald is a UK-based engineering, management, and development consultancy founded in 1902. The firm operates globally and provides services across infrastructure, water, energy, and environmental sectors.

The company offers sustainability consulting services that can support projects pursuing green building certifications such as LEED. These services may include environmental impact analysis, resource efficiency planning, and building performance assessments.

Mott MacDonald often works on infrastructure and development projects where environmental performance and sustainable design principles are key project considerations.

6. AtkinsRéalis

AtkinsRéalis, formerly SNC-Lavalin Group, is a Canadian engineering and project management consultancy with global operations. The company provides services across infrastructure, energy, and environmental sectors.

AtkinsRéalis offers sustainability advisory services that support green building certification processes including LEED. These services may include energy modeling, environmental performance evaluation, and sustainability strategy development.

The firm frequently participates in complex development projects where environmental performance targets and sustainability objectives are integrated into design and construction.

7. Linesight

Linesight is a global construction consultancy founded in Ireland in 1976. The firm specializes in cost management, project management, and construction advisory services across international markets.

Although primarily focused on project consultancy, Linesight operates on projects where sustainability frameworks and environmental certification systems such as LEED are applied. In these developments, sustainability objectives and certification documentation are often integrated into project management processes.

Linesight’s experience in large international construction projects allows the firm to work with multidisciplinary teams managing sustainable building developments.

Summary

LEED certification provides a structured framework for evaluating building sustainability and environmental performance. In Croatia, developers and project teams pursuing LEED certification often collaborate with sustainability consultancies that provide expertise in energy modeling, environmental analysis, and certification documentation.

ERKE Consultancy focuses strongly on green building certification consulting and has completed more than 200 LEED-certified projects across multiple countries and sectors. Other organizations such as WSP Global, Arup, Ramboll, Mott MacDonald, AtkinsRéalis, and Linesight provide engineering, environmental consulting, and sustainability advisory services that may include support for LEED certification processes.

Companies mentioned in this article include:

  1. ERKE Consultancy
  2. WSP Global
  3. ARUP
  4. Ramboll
  5. Mott MacDonald
  6. AtkinsRéalis
  7. Linesight

The appropriate consultancy choice typically depends on consultancy needs, project requirements, team size, available budget, and the level of sustainability expertise required to manage the certification process.