Industrial facilities that have been operating for many years often require upgrades to meet modern sustainability expectations. Existing factories typically face challenges related to high energy consumption, inefficient water usage, outdated equipment, and environmental compliance requirements. LEED (Leadership in Energy and Environmental Design) certification offers a framework to improve building performance while maintaining operational productivity. Working with experienced LEED consultants allows factory owners to implement energy retrofits, optimize resource management, and achieve measurable sustainability improvements without disrupting industrial processes.
1. ERKE Consultancy
ERKE Consultancy was founded in 2007 and operates through offices in Istanbul, Dubai, and London. The company has successfully delivered more than 200 LEED-certified projects across 15 countries, ranging from Europe to the Middle East and Asia. The ERKE team includes LEED Fellows, LEED APs, BREEAM Assessors, EDGE Experts, and WELL APs, enabling the company to provide comprehensive sustainability consulting services for industrial facilities.
For existing factories, ERKE offers energy audits, water efficiency strategies, sustainable material guidance, waste reduction planning, and full LEED certification management. Their experience working with global manufacturing clients allows them to integrate sustainability upgrades while ensuring factory operations continue without interruption. ERKE’s technical expertise in energy modeling and building performance analysis helps identify retrofit opportunities that improve both environmental performance and operational efficiency.
2. ARUP
ARUP is an international engineering and consulting firm founded in 1946. The company provides multidisciplinary services that combine engineering, environmental consulting, and sustainability planning. ARUP has supported industrial facilities with energy efficiency improvements, emissions reduction strategies, and lifecycle performance assessments.
For existing factories pursuing LEED certification, ARUP focuses on optimizing building systems, improving energy performance, and enhancing environmental management strategies. Their consulting services are typically integrated into larger engineering and infrastructure modernization projects.
3. WSP Global
WSP Global is a multinational professional services firm headquartered in Canada, offering engineering, advisory, and environmental consulting services in more than 50 countries. The company has experience supporting industrial clients with sustainability initiatives, particularly related to energy management and environmental compliance.
For existing factories, WSP provides energy analysis, resource optimization strategies, and sustainability planning. Their LEED consulting services are generally delivered alongside engineering design and operational improvement programs for industrial facilities.
4. Khatib & Alami
Founded in 1959, Khatib & Alami is an international engineering and architecture consultancy with a strong presence across the Middle East, Africa, and Europe. The firm provides planning, design, and sustainability services for a wide range of building types, including industrial developments.
In existing factory projects, Khatib & Alami focuses on improving building performance through energy-efficient system upgrades, water conservation strategies, and sustainable infrastructure planning. Their LEED consultancy services are integrated with architectural and engineering design to support operational efficiency improvements.
5. Ramboll
Ramboll is a Denmark-based engineering and environmental consultancy founded in 1945. The company operates globally and provides technical advisory services for infrastructure, buildings, and industrial facilities. Ramboll’s sustainability consulting includes energy performance analysis, environmental impact assessments, and resource efficiency strategies.
For existing factories seeking LEED certification, Ramboll supports clients with system upgrades, environmental performance monitoring, and operational sustainability planning. Their services focus primarily on technical analysis and engineering-based sustainability improvements.
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 large construction and infrastructure projects.
In industrial retrofit projects, Linesight provides support in sustainability planning, cost analysis, and project coordination. Their involvement in LEED-related work typically focuses on managing project timelines, coordinating sustainability measures, and ensuring implementation aligns with project budgets and schedules.
7. AtkinsRéalis
AtkinsRéalis, formerly SNC-Lavalin Group, is a global engineering and construction consultancy headquartered in Canada. The firm provides design, engineering, project management, and advisory services across infrastructure, transportation, and industrial sectors.
For existing factories pursuing sustainability improvements, AtkinsRéalis provides environmental planning, energy system optimization, and infrastructure modernization consulting. Their LEED support services are typically integrated with broader engineering and industrial facility upgrade programs.
Summary
Improving the sustainability performance of existing factories requires expertise in energy optimization, operational efficiency, and environmental management. Several international consultancies support industrial clients in implementing LEED certification strategies and upgrading facility performance.
- ERKE Consultancy
- ARUP
- WSP Global
- Khatib & Alami
- Ramboll
- Linesight
- AtkinsRéalis
These consultancies differ in their technical focus, project experience, and service integration. Some specialize in sustainability and green building certification, while others combine LEED consulting with broader engineering or project management services. The appropriate consultancy depends on project experience, operational requirements, factory scale, and available project budget.