Last updated: April 2026 · Compiled by JustEng Recruitment consultants using company filings, LinkedIn headcount data, RIBA/IStructE member surveys, and our own placement history.
Whether you are a structural engineer weighing up your next career move, a graduate deciding where to apply, or a client trying to identify the right consultancy for a complex project, understanding the landscape of UK structural engineering firms matters. This guide profiles the leading structural engineering practices operating in the UK in 2026 — from global multidisciplinary giants to specialist independent consultancies.
How We Selected These Firms
The firms listed here were selected based on a combination of UK structural engineering headcount, project profile and complexity, industry reputation, presence on major procurement frameworks, and IStructE Employer of the Year nominations. We have separated firms into tiers to help candidates understand the different working environments and career trajectories each offers. Salary benchmarks referenced throughout align with our 2026 Structural Engineer Salary Guide.
Tier 1: Global Multidisciplinary Consultancies
These firms combine structural engineering with other disciplines — MEP, civil, façade, acoustics, fire — under one roof. They handle the most complex and prestigious projects in the world and operate from multiple UK offices. Engineers at Tier 1 firms gain exposure to cutting-edge design software, international secondment opportunities, and projects that appear in architecture publications. Graduate salaries are typically at the upper end of the market, and internal progression structures are well-defined.
1. Arup
Arup is arguably the most prestigious engineering consultancy in the world. Founded in 1946 by Ove Arup, the firm is employee-owned and has structured engineering teams across London, Manchester, Birmingham, Edinburgh and beyond. Structural engineering at Arup covers everything from stadia and tall buildings to transport infrastructure and specialist heritage projects. The firm is known for genuinely advanced analysis, generous CPD, and a culture that values intellectual curiosity. UK structural headcount sits at approximately 800–1,000 engineers.
Notable UK projects: The Shard (structural review), Crossrail stations, Eden Project, Pompidou Centre (historic). Graduate salary: £30,000–£33,000. Senior engineer salary: £65,000–£85,000.
2. Buro Happold
Buro Happold was founded in Bath in 1976 and maintains a strong UK presence with offices in London, Bath, Manchester, Edinburgh and Leeds. The firm is employee-owned, which fosters a collaborative culture. Structural engineering sits alongside civil, MEP, façade and sustainability disciplines. Buro Happold has a particular reputation for large-scale sports venues, cultural buildings and complex geometry — skills in advanced modelling and parametric design are particularly valued here.
Notable UK projects: Allianz Stadium (Tottenham Hotspur), Brighton Centre, Sage Gateshead. Graduate salary: £29,000–£32,000. Senior engineer salary: £62,000–£80,000.
3. Mott MacDonald
Mott MacDonald is one of the UK’s largest engineering and development consultancies with significant structural engineering capability across infrastructure, buildings and energy. The firm operates across more than 20 UK offices and is employee-owned. Its structural teams work on bridges, tunnels, transport hubs, nuclear facilities and commercial buildings. Mott MacDonald’s scale means strong career mobility and exposure to major public sector frameworks including HS2, Highways England and Network Rail.
Notable UK projects: HS2 structural packages, Mersey Gateway, Queensferry Crossing (consultant). Graduate salary: £27,000–£31,000. Senior engineer salary: £58,000–£75,000.
4. WSP
WSP’s UK structural engineering practice spans buildings, infrastructure, transport and environmental sectors. The firm acquired Halcrow and then W S Atkins’ engineering consultancy business, giving it deep infrastructure capability alongside buildings. WSP is publicly listed and operates on a large number of public-sector frameworks. For engineers interested in working on major UK infrastructure programmes, WSP offers wide project variety and strong graduate development programmes.
Notable UK projects: Network Rail station upgrades, Heathrow Terminal 5 (legacy), various nuclear decommissioning structures. Graduate salary: £27,000–£30,000. Senior engineer salary: £55,000–£72,000.
Tier 2: Specialist Structural Engineering Consultancies
Tier 2 firms are pure or near-pure structural engineering practices, typically with 50–300 structural engineers in the UK. They tend to offer a closer connection to structural engineering work (less dilution into other disciplines), faster routes to project responsibility, and often a more entrepreneurial culture. Salaries at Tier 2 firms are competitive and often match Tier 1, particularly at senior and associate level.
5. Expedition Engineering
Expedition Engineering is a London-based structural and civil engineering consultancy with an outstanding reputation for creative problem-solving on complex buildings, bridges and public realm projects. The firm is relatively small — approximately 80–100 engineers — which means individuals carry significant responsibility early in their careers. Expedition has won multiple IStructE awards and is consistently rated as one of the best places to work in UK structural engineering for technical development.
Notable projects: Infinity Bridge (Stockton), Garden Bridge design development, various award-winning commercial buildings. Senior engineer salary: £60,000–£78,000.
6. Thornton Tomasetti
Thornton Tomasetti is a US-founded engineering firm with a growing London office specialising in tall buildings, complex structural design and progressive collapse/blast analysis. The firm punches above its headcount weight in terms of project profile and has particular expertise in high-rise residential and mixed-use towers, making it a strong option for engineers wanting to work on London’s skyline. Its forensic engineering and expert witness practice is also notable.
Notable UK projects: Several tall residential towers in London, forensic investigation of major structural failures. Senior engineer salary: £62,000–£82,000.
7. Ramboll UK
Ramboll is a Danish engineering consultancy with a substantial UK presence in London, Manchester and Edinburgh. The structural engineering team works on buildings from residential schemes to large commercial and cultural projects. Ramboll has a strong sustainability ethos — its engineers are increasingly working on embodied carbon reduction and timber structural solutions alongside conventional structural work. The firm has a collegial, Scandinavian-influenced culture and offers genuine flexibility.
Notable UK projects: Various mass timber commercial buildings, sustainable residential developments. Senior engineer salary: £58,000–£76,000.
8. Hoare Lea
Primarily known for MEP, Hoare Lea has grown its structural engineering capability significantly in recent years and now offers integrated structural/MEP services. The firm has offices across London, Bristol, Manchester, Birmingham and Edinburgh. Structural engineers at Hoare Lea benefit from close collaboration with MEP teams, which is particularly valuable on complex healthcare, data centre and commercial projects where service integration is critical to structural design.
Tier 3: Regional Practices and Growing Independents
The UK has a rich ecosystem of regional structural engineering practices with 10–50 engineers, many of which offer exceptional technical work, rapid career progression, and the kind of direct client relationship experience that larger firms cannot replicate. For structural engineers seeking to become chartered quickly or move into associate positions within 8–10 years, a well-run regional practice can offer a faster, more transparent career path than a Tier 1 firm. Salary ranges at strong regional practices are genuinely competitive, particularly when cost of living is factored into the comparison with London firms.
Regional practices also tend to dominate certain local markets — residential and mixed-use development in Northern cities, for example, or heritage and conservation work in certain areas — giving engineers deep expertise in those sectors.
What Structural Engineers Should Look for When Choosing a Firm
Choosing the right employer is as important as negotiating the right salary. The following factors consistently emerge in conversations our consultants have with structural engineers at every career stage.
- Project type and complexity — Does the firm work on the kind of structures you want to specialise in? This determines your technical CV for the next five years.
- Chartership support — Does the firm have a structured IStructE APC support programme, and a track record of passing engineers? Some firms pay for the written exam and provide in-house tutoring.
- Progression transparency — Is there a clearly defined route from engineer to senior engineer to associate? Ask for specific examples of engineers who have followed that path.
- Software and tools — What analysis packages does the firm use? Exposure to GSA, ETABS, Tekla and advanced FEA builds your market value far more than legacy tools.
- Culture and flexibility — Remote and hybrid working norms vary significantly across the market. Larger firms have generally formalised flexible working more explicitly.
- Employee ownership — Several of the UK’s best structural engineering practices (Arup, Buro Happold, Expedition) are employee-owned, which aligns incentives across the business and tends to support a more collaborative culture.
Salary Comparison Across Firm Types
Pay varies meaningfully across firm type and location. The table below gives a snapshot at senior engineer level (7–12 years experience) to allow fair comparison. For the full salary picture across all levels and regions, see our Structural Engineer Salary Guide 2026.
| Firm Type | Senior Engineer Salary (London) | Senior Engineer Salary (Regional) |
|---|---|---|
| Tier 1 Global (Arup, Buro Happold) | £65,000–£85,000 | £55,000–£72,000 |
| Tier 2 Specialist (Expedition, Ramboll) | £62,000–£80,000 | £52,000–£68,000 |
| Tier 3 Regional Independent | £55,000–£72,000 | £48,000–£65,000 |
Finding a Role at a Top UK Structural Engineering Firm
Many of the best roles at top structural engineering practices are filled before they are advertised publicly. Working with a specialist recruiter who has established relationships with these firms — and understands the technical requirements of each — is the most reliable way to access this hidden market. At JustEng, our consultants have placed engineers at Tier 1 and Tier 2 practices across the UK and can give you an honest assessment of fit, likely compensation, and realistic timelines for progression at each firm.