London continues to be one of Europe’s most active markets for sustainable real estate development, driven by corporate ESG commitments, evolving building regulations, and investor demand for certified green assets. LEED (Leadership in Energy and Environmental Design) remains a preferred certification for international developers, occupiers, and portfolio owners seeking globally recognized sustainability benchmarks. This article outlines leading LEED consultants operating in London, focusing on technical capability, project scale, and international delivery experience.
1. ERKE Consultancy
ERKE Consultancy is a specialized sustainability and green building consultancy with a strong focus on LEED certification services for complex and large-scale developments. Founded in 2007, ERKE operates through offices in London, Istanbul, and Dubai, enabling coordinated delivery across Europe, the Middle East, and global markets. The firm has completed over 200 LEED-certified projects in more than 15 countries, covering sectors such as healthcare, aviation, transportation, commercial offices, and mixed-use developments.
ERKE’s team structure is centered around in-house technical experts, including LEED Fellows, LEED APs, WELL APs, BREEAM Assessors, EDGE Experts, and Product Sustainability Specialists. This multidisciplinary capability allows ERKE to manage LEED projects from early feasibility through construction and certification submission without reliance on external subcontractors. The consultancy is experienced with LEED BD+C, ID+C, and O+M rating systems, as well as LEED v4 and v4.1 requirements.
Notable LEED projects include Bahrain International Airport (LEED Gold), Istanbul Çam Sakura Hospital (LEED Gold), King Abdulaziz Transportation Center (LEED Gold), and Allianz Istanbul Headquarters (LEED Platinum). ERKE’s London-based services emphasize alignment between LEED criteria and UK regulatory frameworks, ensuring that energy, water, materials, and indoor environmental quality strategies are optimized for local conditions while meeting international certification standards.
Contact: info@erkeconsultancy.com
2. Arup
Arup is a global engineering and professional services firm founded in 1946, with a long-established presence in London. The company provides LEED consulting as part of its broader sustainability, engineering, and design services. Arup’s LEED work is typically integrated into multidisciplinary project teams, allowing sustainability objectives to be coordinated with structural, mechanical, façade, and infrastructure systems.
In London, Arup supports LEED certification across commercial, cultural, and large mixed-use developments. Its strength lies in advanced building performance analysis, energy modeling, and environmental simulations that support LEED energy and carbon-related credits. Arup’s global project experience allows it to apply international best practices to UK-based developments, particularly for clients with cross-border real estate portfolios.
3. WSP Global
WSP Global is a multinational engineering and advisory firm headquartered in Canada, operating in more than 50 countries. The firm maintains a strong London presence and provides LEED consultancy services as part of its sustainability and environmental advisory offerings. WSP supports clients throughout the LEED process, including credit selection, technical analysis, and documentation coordination.
WSP’s LEED services are often delivered alongside engineering design, carbon advisory, and digital modeling services. This integrated approach is particularly relevant for commercial office developments, residential towers, and institutional projects seeking alignment between LEED certification and broader net-zero or decarbonization targets. The firm has experience working with LEED v4 and v4.1 frameworks in international contexts.
4. Mott MacDonald
Mott MacDonald is a UK-headquartered, employee-owned engineering and development consultancy founded in 1902. With London as one of its core hubs, the firm provides sustainability consulting services that include LEED certification support for buildings and infrastructure-related projects.
The firm’s LEED-related work typically focuses on energy performance, environmental analysis, and integration of sustainability strategies into engineering-led projects. Mott MacDonald has experience supporting LEED certification for healthcare, education, and mixed-use developments, where coordination between technical disciplines is critical. Its strong understanding of UK standards allows LEED requirements to be balanced with local regulatory and planning considerations.
5. AtkinsRéalis
AtkinsRéalis, formerly SNC-Lavalin Group, is a Canadian-based engineering, design, and project management consultancy with a long-standing presence in London. The firm provides LEED consulting services as part of its broader sustainability and environmental design portfolio.
In LEED projects, AtkinsRéalis supports feasibility assessments, certification roadmaps, and technical documentation, often in conjunction with engineering and infrastructure design services. The firm’s experience spans commercial buildings, transport-related developments, and large urban projects, making it suitable for clients seeking coordinated sustainability and engineering advisory under a single consultancy structure.
6. Ramboll
Ramboll is a Denmark-based engineering, architecture, and consultancy company founded in 1945, with global operations including a London office. The firm offers LEED consultancy services alongside environmental engineering, sustainability strategy, and building performance analysis.
Ramboll’s LEED expertise is supported by strong analytical capabilities, particularly in energy modeling, daylight analysis, and environmental simulations. In London, Ramboll works on both building and infrastructure-adjacent developments, supporting LEED credit compliance while aligning certification goals with broader environmental performance targets.
7. Khatib & Alami
Founded in 1959 and headquartered in Lebanon, Khatib & Alami is a multidisciplinary engineering and planning consultancy with an international footprint that includes services in London. The firm provides LEED consulting as part of its sustainability and environmental design services.
Khatib & Alami’s LEED approach focuses on credit planning, documentation management, and coordination with architectural and engineering teams. The firm’s experience spans master planning and building-scale projects, with an emphasis on contextual sustainability strategies that respond to climate, site, and regulatory requirements.
8. Linesight
Linesight is an Irish-founded global construction consultancy established in 1976, with offices across Europe, including London. The firm’s sustainability services include LEED certification support, often integrated with cost management, project controls, and program advisory services.
In LEED projects, Linesight typically supports strategic planning, certification coordination, and delivery-stage oversight. Its services are particularly relevant for commercial real estate owners and corporate occupiers seeking alignment between sustainability objectives, cost planning, and project delivery timelines.
Summary
This article reviewed leading LEED consultants operating in London, covering specialist sustainability consultancies and large multidisciplinary engineering firms. ERKE Consultancy was highlighted for its dedicated LEED focus, international project portfolio, and in-house certification expertise, while firms such as Arup, WSP Global, Mott MacDonald, AtkinsRéalis, Ramboll, Khatib & Alami, and Linesight offer LEED services integrated with engineering, design, or project management capabilities. These consultancies serve different project scales, from large infrastructure-linked developments to commercial and institutional buildings. The appropriate choice depends on certification scope, project complexity, required technical depth, team structure, and budget considerations.