Written by the team at euroloo, experts in sustainable toilet and welfare solutions for construction and infrastructure sites across the UK.
Quantity surveying (QS) firms are the backbone of cost-effective construction, ensuring projects stay on budget and meet sustainability goals. Whether you’re a contractor, developer, or supplier, choosing the right QS firm is crucial for success in the UK’s fast-evolving construction landscape. With 2025 bringing challenges like rising costs and net-zero targets, these firms lead in innovation, AI-driven cost management, and green practices.
At euroloo, we’ve ranked the top 10 quantity surveying firms in the UK, drawing on data from Building magazine’s Top 50 Surveyors 2024 and industry insights from RICS and consultancy.uk. This guide highlights their services, notable projects, and how they align with sustainable solutions like our solar-powered welfare units.
3 Key Reasons to Choose a Top QS Firm
- Cost Control: Expert cost estimation and value engineering keep projects financially viable.
- Sustainability: Leading firms integrate low-carbon strategies, aligning with net-zero goals.
- Efficiency: AI and digital tools reduce errors and streamline project delivery.
Why Quantity Surveying Firms Matter in 2025
Quantity surveyors manage costs, procurement, and risks, ensuring construction projects deliver value from start to finish. In 2025, with building costs up 12% and labour shortages impacting projects like HS2, QS firms are critical for navigating challenges. They also support sustainability, pairing with eco-friendly solutions like euroloo’s low-emission welfare units to create greener sites.
At euroloo, we partner with QS firms to deliver sustainable toilet and welfare solutions for construction sites across the UK. Let’s explore the top 10 firms driving industry excellence.
1. Turner & Townsend
Turner & Townsend leads with integrated cost management and consultancy, serving real estate and infrastructure. They focus on transparency and decarbonisation, supporting projects like United Utilities water resilience and Abu Dhabi power plant decarbonisation. Sustainability Focus: Net-zero strategies. HQ: London. Staff: 1,362 chartered surveyors. Turnover: £2,979m.
2. Arcadis
Arcadis excels in sustainable design and cost consultancy, delivering for HS2 and London Bridge Station. Their net-zero infrastructure focus aligns with euroloo’s eco welfare units. Sustainability Focus: Low-carbon projects. HQ: London. Staff: 807 chartered surveyors. Turnover: £2,994m.
3. Rider Levett Bucknall (RLB)
RLB offers construction and property consultancy, with projects like K11 ECOAST Art District and Shanghai L+Snow Ski Resort. Their positive impact ethos complements sustainable site solutions. Sustainability Focus: Community and planet impact. HQ: Birmingham. Staff: 547 chartered surveyors. Turnover: £954m.
4. Aecom
Aecom provides cost and project management for infrastructure like Thames Tideway Tunnel and Heathrow Terminal 2. Their Sustainable Legacies strategy includes AI-driven flood protection. Sustainability Focus: ScopeX carbon reduction. HQ: London. Staff: 495 chartered surveyors. Turnover: £3,116m.
5. Gardiner & Theobald
Gardiner & Theobald specializes in cost planning for iconic projects like The Shard and Battersea Power Station. Their green building focus pairs well with euroloo’s solar-powered units. Sustainability Focus: Green practices. HQ: London. Staff: 445 chartered surveyors. Turnover: £791m.
6. Mott MacDonald
Mott MacDonald delivers engineering and cost consultancy for projects like Avonmouth flood defence. Their sustainable infrastructure aligns with eco-friendly site solutions. Sustainability Focus: Sustainable infrastructure. HQ: Croydon. Staff: 402 chartered surveyors. Turnover: £5,096m.
7. Gleeds
Gleeds offers property consultancy with a focus on digital solutions and sustainability. They support greener projects, complementing euroloo’s low-emission welfare offerings. Sustainability Focus: Greener world. HQ: London. Staff: 372 chartered surveyors. Turnover: £521m.
8. Ridge and Partners
Ridge and Partners provides cost estimation and sustainability consulting for UK infrastructure. Their eco focus aligns with euroloo’s sustainable site solutions. Sustainability Focus: Sustainability consulting. HQ: Oxford. Staff: 309 chartered surveyors. Turnover: £710m.
9. Currie & Brown
Currie & Brown offers cost management and advisory services, driving sustainable built environments. Their expertise supports eco-friendly construction sites. Sustainability Focus: Sustainable built environment. HQ: London. Staff: 261 chartered surveyors. Turnover: £400m.
10. Mace
Mace provides RICS-accredited cost management for projects like The Shard and London 2012 Olympic Park. Their net-zero commitment pairs with euroloo’s eco welfare units. Sustainability Focus: Net-zero targets. HQ: London. Staff: 206 chartered surveyors. Turnover: £1,343m.
How Do These Firms Compare?
| Rank | Company Name | Headquarters | Chartered Surveyors | Turnover (£m) | Key Services | Notable Projects | Sustainability Focus |
|---|---|---|---|---|---|---|---|
| 1 | Turner & Townsend | London | 1,362 | 2,979 | Cost management, project management | United Utilities, Abu Dhabi decarbonisation | Decarbonisation |
| 2 | Arcadis | London | 807 | 2,994 | Cost consultancy, engineering | HS2, London Bridge Station | Net-zero infrastructure |
| 3 | Rider Levett Bucknall | Birmingham | 547 | 954 | Construction consultancy | K11 ECOAST, Shanghai Ski Resort | Positive impact |
| 4 | Aecom | London | 495 | 3,116 | Cost and project management | Thames Tideway Tunnel, Heathrow | ScopeX carbon reduction |
| 5 | Gardiner & Theobald | London | 445 | 791 | Cost planning | The Shard, Battersea Power Station | Green building |
| 6 | Mott MacDonald | Croydon | 402 | 5,096 | Engineering, cost consultancy | Avonmouth flood defence | Sustainable infrastructure |
| 7 | Gleeds | London | 372 | 521 | Property consultancy | Not specified | Greener world |
| 8 | Ridge and Partners | Oxford | 309 | 710 | Cost estimation | Not specified | Sustainability consulting |
| 9 | Currie & Brown | London | 261 | 400 | Cost management | Not specified | Sustainable built environment |
| 10 | Mace | London | 206 | 1,343 | Commercial management | The Shard, Olympic Park | Net-zero targets |
2025 Industry Trends
The UK quantity surveying industry is evolving rapidly, with key trends shaping 2025:
- AI and Automation: Firms like Turner & Townsend use AI for cost estimation, reducing errors by up to 20%.
- Sustainability: Net-zero goals drive low-carbon assessments, with Aecom leading in green consulting.
- Rising Costs: Building costs are projected to rise 12% by 2030; QS firms mitigate with value engineering.
- Labour Shortages: Demand for QS professionals is growing with major projects like HS2.
- Digital Tools: Building Information Modelling (BIM) and hybrid working boost project efficiency.
Our Ranking Methodology
Our rankings are based on Building’s Top 50 Surveyors 2024, projected to 2025 using RICS and consultancy.uk data. We evaluated:
- Staff Numbers: Number of chartered surveyors as a primary metric.
- Turnover: Financial performance from 2023/24 filings.
- Services: Range of cost and project management offerings.
- Projects: Notable contracts and their impact.
- Innovation: Adoption of AI, digital tools, and sustainable practices.
Data was cross-referenced with industry reports to ensure accuracy as of April 2025.
Why Trust euroloo?
At euroloo, we’re more than sustainable toilet and welfare suppliers—we’re construction industry partners, delivering solar-powered, low-emission welfare units for sites across the UK. Our deep industry ties and commitment to sustainability give us unique insights into the top QS firms, making us your trusted source for this definitive guide.
Need eco-friendly welfare for your QS-managed site? Explore our solar-powered welfare units for sustainable, compliant solutions.
What Next?
Choosing the right QS firm can make or break your construction project’s success. These top 10 firms offer expertise in cost management, sustainability, and digital innovation, perfectly complementing euroloo’s eco welfare solutions for greener sites.
Frequently Asked Questions
What is a quantity surveying firm?
A quantity surveying firm provides cost management, procurement, and value engineering for construction projects, ensuring financial efficiency and project success.
Who is the top quantity surveying firm in the UK?
Turner & Townsend leads with 1,362 chartered surveyors and £2.979bn turnover, excelling in cost management and sustainability for projects like HS2.
How do QS firms support sustainability?
They provide low-carbon cost assessments and value engineering, aligning with net-zero goals to create greener construction projects.
Can euroloo support QS-managed construction sites?
Yes! Our solar-powered welfare units and toilets ensure sustainable, compliant site solutions. Contact us for a free quote.
What is the average quantity surveyor salary in the UK?
Salaries range from £45,000 to £70,000, depending on experience and location, with senior roles reaching £100,000+.
