What Sidara does

Sidara is a privately owned international professional services firm and global collaborative of 10 specialist brands headquartered in the Dubai International Financial Centre. Founded in 1959 by a group of engineering professors, the group operates through a five-pillar model: Dar (multidisciplinary planning, design, and engineering), Wood (energy and materials consulting and operations), Perkins&Will (architecture and design), TYLin (infrastructure engineering), and Currie & Brown (project management and advisory), supplemented by Penspen (energy infrastructure), Maffeis (structural engineering), Landrum & Brown (aviation planning), Introba (building engineering), and CopperTree Analytics (AI-driven building analytics via the KAIZEN platform). The firm is 100% owned by its working partners under the leadership of Chairman and CEO Talal Shair.

Sidara generates revenue primarily through project-based professional services engagements spanning planning, design, engineering, project management, and advisory across the full lifecycle of strategic infrastructure. Sectors served include aviation, healthcare, mobility, communities, environment, energy transition, water, and science & technology, with clients including governments, leading hospitals, airports, and global technology and energy companies. The combined group reports over $8.5bn in revenue with 55,000+ professionals distributed across North America (~40%), Europe (~20%), Middle East and Africa (~20%), and Asia Pacific (~20%). Pricing is not publicly disclosed and is structured per-engagement based on project scope and complexity.

The firm's technology stack includes the proprietary KAIZEN analytics platform (deployed across 3,000+ buildings on five continents) which combines rule-based algorithms and machine learning for fault detection, automated system optimization, and monitoring-based commissioning. Sidara's partnership with Microsoft (2025) integrates Innovation Studio and Microsoft Fabric for AI and data workflows across the collaborative. The 2025 acquisition of Wood was the most significant transaction in the group's history, transforming it into a multi-billion-dollar global engineering and design platform with marquee project credentials across 300+ airports and six continents.

Name

Sidara

Legal name

Dar Al-Handasah Consultants Shair and Partners Holdings Ltd (DIFC)

Website

https://sidaracollaborative.com

Company type

Private

Founded year

1959

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Sidara is a privately owned global collaborative of 10 specialist professional services firms delivering planning, design, engineering, project management, and advisory services across aviation, healthcare, energy, mobility, and infrastructure to governments, enterprises, and institutions worldwide.

Ownership category

akta.pro rank

Product category

Engineering & Design Professional Services

NAICS

Professional, Scientific, and Technical Services (541), Environmental Consulting Services (541620), Landscape Architectural Services (54132), Corporate, Subsidiary, and Regional Managing Offices (551114)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Services-Management Services (8741), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Construction Management (Agency/Owner’s Rep) (IMAFAAAC)

akta.pro secondary industries

Supplier Engagement & Value-Chain Decarbonization Programs (EUABAKAE), Infrastructure & Project Finance Advisory (BPAHADAO), Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE)

Keywords

• Engineering design services
• Project management consulting
• Infrastructure planning
• Architecture and built environment
• Energy transition advisory

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Professional Services - Planning and Design: Comprehensive planning, design, and engineering services for strategic infrastructure projects across multiple sectors including aviation, healthcare, energy, and mobility. Revenue generated through project-based consulting engagements.
2. Engineering and Project Management: Full lifecycle project management and engineering services from planning through to handover and facilities management.
3. Advisory and Consulting Services: Sustainability advisory, digital solutions, and technical consulting services across the built environment.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Sidara is a global collaborative of specialist firms delivering planning, design, engineering, project management, cost management, and advisory services for strategic and critical infrastructure projects across aviation, mobility, communities, environment, energy transition, water, healthcare, and science & technology sectors. Services are delivered through five core pillars and specialized brands covering the full project lifecycle from concept and master planning through engineering, construction management, handover, and ongoing facilities management.

Product overview

Sidara is a global collaborative of specialist professional services firms offering an integrated portfolio of planning, design, engineering, project management, and consulting services through its network of subsidiary brands. The organization operates through five pillars: Dar (multidisciplinary planning and design), Wood (energy and materials consulting and operations), Perkins&Will (architecture and design), TYLin (infrastructure engineering), and Currie & Brown (project management and consultancy), supplemented by specialized firms including Penspen (energy infrastructure), Maffeis (structural engineering), Landrum & Brown (aviation planning), Introba (building engineering), and CopperTree Analytics KAIZEN (AI-driven building analytics). Projects are delivered across the full lifecycle from planning and design through to project management, handover, and facilities management.

Differentiator

Problem solved

Functional benefit

Brands

• Dar: Multidisciplinary planning, design, engineering and project management firm. Established and shaped the Sidara Collaborative into the global network it is today.
• Wood
• Perkins&Will
• TYLin
• Currie & Brown
• Penspen
• Maffeis Engineering
• Landrum & Brown
• Introba
• CopperTree Analytics

Products and services

• Dar - Multidisciplinary Planning, Design & Engineering Planning, design, engineering, management, and consultancy services for strategic and high-impact projects across buildings, transportation, civil infrastructure, water, energy transition, and sustainability, delivered by 7,800 people across 50+ locations in the Middle East, Africa, Asia, and Europe.
• Wood - Energy & Materials Consulting, Engineering and Operations Global consulting, engineering, and operations firm with century-long expertise spanning consulting and engineering design through in-field operations for energy and materials clients.
• Perkins&Will - Architecture & Design Award-winning, research-based, interdisciplinary architecture firm and the only Sidara business devoted exclusively to design, serving healthcare, science, education, workplace, transportation, and urban design sectors across 28 cities.
• TYLin - Infrastructure Engineering Global engineering firm designing infrastructure solutions that connect and elevate communities, with 5,000 employees delivering projects across the Americas, Asia, and Europe.
• Currie & Brown - Project, Cost Management & Advisory World-leading provider of project management, cost management, and advisory services providing certainty for better and sustainable built environments, with over 2,700 employees across 70+ offices.
• Penspen - Energy Infrastructure Design & Optimization Global team designing, maintaining, and optimizing energy infrastructure to improve access to secure and sustainable energy, providing consulting, project, and engineering solutions across the entire energy asset lifecycle for 70+ years with over 15,000 projects in 100+ countries.
• Maffeis Engineering - Structural Engineering Consultancy Specialized structural engineering consultancy designing stadia, bridges, tensile and ETFE structures, complex facades, and intricate mechanical systems including retractable roofs.
• Landrum & Brown - Aviation Planning Consultancy Aviation planning consultancy providing master planning, airfield and airspace, terminal planning, environmental, business and finance, and ground transportation services for airport clients globally.
• Introba - Building Engineering & Consulting Building engineering and consulting firm combining cutting-edge digital solutions with emerging innovations and sustainability strategies to transform the built environment across aviation, community, environment, mobility, health, and science & technology sectors.
• CopperTree Analytics KAIZEN - Building Analytics Platform Patented analytics platform using rule-based algorithms and machine learning to transform building data into actionable insights, with Fault Detection and Diagnostics (FDD), Automated System Optimization (ASO), and monitoring-based commissioning (MBCx) capabilities deployed in over 3,000 client buildings across five continents.

Named customers5 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• MicrosoftflagshipTechnology or Integration · 1 January 2025Global partnership powered by Microsoft technologies including Innovation Studio for collaboration and Microsoft Fabric for data and AI workflows. Sidara's first-ever hackathon brought together over 100 colleagues from across its global network to address decarbonization challenges in the built environment using AI, data and cloud tools. The partnership generated innovative and scalable ideas while strengthening AI and data capabilities across the group.

Scale indicators8 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Arcadis: Amsterdam-headquartered design, engineering, and consulting firm with comparable presence in mobility, resilience, water, and buildings; competes directly with Sidara in Europe and the Middle East.
• AECOM: US-listed global infrastructure consulting firm delivering design, engineering, construction, and project management services across transportation, water, energy, and environment — Sidara's closest large-cap public peer.
• WSP Global: Canadian-headquartered global professional services firm in engineering, design, and project management; directly comparable to Sidara across transportation, buildings, environment, and energy, with a similar M&A-driven scale-up strategy.
• AtkinsRéalis (formerly SNC-Lavalin): Canada-based engineering services and nuclear/transportation specialist; competes with Sidara's TYLin and Currie & Brown on infrastructure PM and design mandates globally.
• Mott MacDonald: Privately held UK-headquartered engineering consultancy providing planning, design, and PM services across transport, energy, water, and buildings — directly comparable peer given Sidara's similar private partnership ownership model.
• HDR Inc. US employee-owned design and engineering firm specializing in architecture, engineering, and consulting across transportation, water, healthcare, and energy — comparable peer in scale, ownership structure, and sector mix.
• Tetra Tech: US consulting and engineering firm focused on water, environment, and sustainable infrastructure — closely comparable to Sidara's Dar, CopperTree, and Wood water/environment capabilities.
• Stantec: Canadian engineering, architecture, and environmental services firm active across infrastructure, water, buildings, and energy — directly comparable to Sidara's diversified multi-disciplinary consulting model.
• Jacobs Solutions: Global professional services firm with critical infrastructure and advanced facilities practices; competes with Sidara's Currie & Brown, Dar, and Wood pillars across energy, water, and life sciences projects.

Broad incumbents

• Bechtel: Privately held US mega-engineering, procurement, and construction firm with overlapping capabilities in energy, infrastructure, and government projects; relevant as a broader incumbent for mega-project comparison rather than direct consulting competition.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks1 record

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sidara
• Instagraminstagram.com/sidaracollaborative
• Facebookfacebook.com/profile.php

Revenue estimate

Valuation estimate

Number of profiles

Profiles30 records

Subsidiaries10 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sidara