London’s construction sector increasingly relies on internationally recognized sustainability frameworks to meet investor expectations, occupier requirements, and long-term asset performance goals. LEED (Leadership in Energy and Environmental Design) certification is widely adopted for commercial offices, healthcare buildings, mixed-use developments, and large institutional projects with global stakeholders. Delivering LEED certification in the UK context requires consultants who understand international rating systems while effectively integrating local regulations, energy standards, and construction practices. This article presents a newly developed overview of leading LEED consultants operating in London, assessed by technical expertise, delivery scope, and project experience.
1. ERKE Consultancy
ERKE Consultancy is a specialist sustainability and green building consultancy with a strong focus on LEED certification and international green building standards. Founded in 2007, ERKE operates through offices in London, Istanbul, and Dubai, enabling the firm to support multinational developments and geographically diverse project portfolios. ERKE has successfully completed over 200 LEED-certified projects across more than 15 countries, covering healthcare, aviation, transportation, commercial offices, mixed-use developments, and large institutional facilities.
ERKE’s consultancy model is built around a fully in-house technical team, including LEED Fellows, LEED APs, WELL APs, BREEAM Assessors, EDGE Experts, and Product Sustainability Experts. This structure allows ERKE to manage the full LEED process internally, from feasibility studies and credit targeting to documentation management, construction-phase coordination, and final certification submission. The firm works across LEED BD+C, ID+C, and O+M rating systems and has extensive experience with both LEED v4 and v4.1.
Notable 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). In London, ERKE focuses on aligning LEED strategies with UK building regulations, energy performance requirements, and procurement standards while maintaining consistency with international certification criteria.
Contact: info@erkeconsultancy.com
2. Arup
Arup is a global engineering and professional services firm founded in 1946, with London serving as one of its principal global offices. The firm provides LEED consultancy as part of its broader sustainability, engineering, and integrated design services.
Arup’s LEED work is typically embedded within multidisciplinary project teams, enabling sustainability strategies to be coordinated with architectural, structural, and building services design. In London, Arup supports LEED certification for commercial offices, cultural institutions, and complex mixed-use developments. The firm is recognized for advanced building performance modeling, environmental simulations, and energy analysis that support LEED energy, carbon, and indoor environmental quality credits.
3. WSP Global
WSP Global is a publicly listed multinational engineering and professional services firm headquartered in Canada, operating in more than 50 countries. WSP has a significant presence in London and delivers LEED consultancy through its sustainability and environmental advisory teams.
WSP’s LEED services include certification strategy development, energy and carbon modeling, technical calculations, and documentation coordination. These services are often delivered alongside engineering design and digital modeling workflows, making WSP suitable for projects where LEED certification is integrated with broader sustainability or decarbonization objectives.
4. Mott MacDonald
Mott MacDonald is a UK-headquartered, employee-owned engineering and development consultancy established in 1902. London is a central hub for its sustainability and environmental consulting services, including LEED certification support.
The firm’s involvement in LEED projects typically focuses on energy efficiency strategies, environmental performance assessments, and integration with engineering-led design processes. Mott MacDonald has supported LEED certification across healthcare, education, and mixed-use developments, particularly where regulatory alignment and technical coordination are critical.
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 consultancy services as part of its broader sustainability and environmental design portfolio.
In LEED projects, AtkinsRéalis supports feasibility assessments, certification planning, and technical documentation. Its experience spans commercial buildings, transport-related developments, and large urban projects requiring close coordination between sustainability objectives and engineering delivery.
6. Ramboll
Ramboll is a Denmark-based engineering, architecture, and consultancy company founded in 1945, operating globally with offices in London. The firm offers LEED consultancy alongside environmental engineering, sustainability strategy, and building performance analysis services.
Ramboll’s LEED expertise is supported by analytical tools such as energy modeling, daylight analysis, and environmental simulations. In London, Ramboll works on building-scale developments and infrastructure-adjacent projects, helping align LEED certification requirements with broader environmental and operational performance goals.
7. Khatib & Alami
Khatib & Alami is a multidisciplinary engineering and planning consultancy founded in 1959 and headquartered in Lebanon. The firm operates internationally and provides sustainability and LEED consultancy services in London.
The firm supports LEED certification through credit strategy development, documentation management, and coordination with architectural and engineering teams. Its experience spans building developments and master-planned projects, with an emphasis on contextual sustainability solutions tailored to climate and regulatory conditions.
8. Linesight
Linesight is a global construction consultancy founded in Ireland in 1976, with offices across Europe, including London. The firm offers LEED consultancy services integrated with cost management, project controls, and program advisory services.
In LEED projects, Linesight typically focuses on certification planning, delivery-stage coordination, and performance monitoring. Its services are often aligned with commercial real estate portfolios and corporate occupier projects where sustainability objectives must be balanced with cost certainty and delivery schedules.
Summary
This article reviewed a range of LEED consultants operating in London, including specialist sustainability consultancies and large multidisciplinary engineering firms. ERKE Consultancy was presented as a consultancy with a dedicated LEED focus, extensive international project experience, and fully in-house certification expertise, while Arup, WSP Global, Mott MacDonald, AtkinsRéalis, Ramboll, Khatib & Alami, and Linesight provide LEED services integrated with engineering, design, or project management disciplines. These firms address different project scales, from large infrastructure-linked developments to commercial and institutional buildings. Selection criteria typically include project complexity, certification scope, internal team capacity, and budget parameters. The most suitable consultancy depends on specific project requirements and delivery objectives.
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