The practices
| Practice | Type | Notes |
|---|---|---|
| AECOM | Multidisciplinary | Global infrastructure consultancy with a UK fire engineering team working across buildings, transport and infrastructure. |
| Arup | Multidisciplinary | Global engineering practice; its fire team is among the largest and oldest in the field and has shaped much of the performance-based methodology used in the UK. |
| Ashton Fire | Fire specialist | Independent fire engineering consultancy, one of the faster-growing in the UK, with offices in London, Oxford, Birmingham, Manchester and Edinburgh. |
| Astute Fire | Fire specialist | Independent Glasgow practice, the Scottish continuation of the former Astute Fire group. Useful where a scheme sits under Scottish Building Standards rather than the Approved Documents. |
| AtkinsRéalis | Multidisciplinary | Engineering and project management group with a UK fire engineering team across buildings and infrastructure. |
| BB7 | Fire specialist | Specialist fire and façade engineering, fire strategies, CFD and fire risk management across ten UK and Ireland offices. Acquired by CERTANIA in October 2025; the BB7 brand continues. |
| Buro Happold | Multidisciplinary | Engineering consultancy with fire engineering delivered alongside structures and building services. |
| Cundall | Multidisciplinary | Multidisciplinary consultancy with a UK fire engineering team. |
| Design Fire Consultants | Fire specialist | Independent fire engineering consultancy covering strategy, regulatory approval, CFD, structural fire and mass timber, from Leeds, London, Manchester, Sheffield and Birmingham. |
| FDS Consult UK | Fire specialist | Independent fire engineering consultancy based in Kent and London, part of the wider FDS group. |
| Fire Ingenuity | Fire specialist | Independent fire strategy and fire engineering practice, established 2010 and widely used on major London schemes. |
| Hilson Moran | Building services | Building services and engineering consultancy with a UK fire engineering discipline. |
| Hoare Lea | Building services | Building services engineering practice with an established fire engineering discipline integrated with smoke control and services design. |
| Introba | Building services | Buildings engineering consultancy with a UK fire engineering team. Formed from Integral Group, Elementa and Ross & Baruzzini. |
| Jensen Hughes | Fire specialist | International fire and life safety specialist with UK operations. |
| Kiwa Fire Safety Compliance | Fire specialist | Fire engineering, smoke and evacuation modelling, structural fire engineering and product certification. Formerly International Fire Consultants (IFC Group), acquired by Kiwa in 2021. |
| Mott MacDonald | Multidisciplinary | Engineering and development consultancy with UK fire engineering across buildings and infrastructure. |
| NDY | Building services | Norman Disney & Young; the London office carries a fire engineering service line. Part of the Tetra Tech group but trading under its own brand. |
| OFR Consultants | Fire specialist | Independent fire engineering consultancy with a research-led profile and a substantial existing-buildings practice. The former UK arm of Olsson Fire & Risk. |
| Ramboll | Multidisciplinary | Engineering and consultancy group with UK fire engineering capability, including structural fire engineering. |
| Semper | Fire specialist | Fire engineering, research and surveying with a substantial residential and remediation practice, including PAS 9980 appraisals and higher-risk building safety cases. Renamed from Astute Fire (South) in 2022. |
| SOCOTEC UK | Multidisciplinary | Testing, inspection and compliance group with a UK fire engineering team, which absorbed the former Trenton Fire practice through the Butler & Young group. |
| Stantec | Multidisciplinary | Global engineering consultancy whose UK fire engineering team absorbed Hydrock in 2024. |
| Sweco UK | Multidisciplinary | European engineering consultancy with a dedicated UK fire safety engineering team covering smoke management, CFD and fire strategy. |
| Tenos | Fire specialist | Independent specialist fire engineering consultancy. |
| Tetra Tech | Multidisciplinary | Consultancy group with UK building safety and fire engineering services. |
| The Fire Surgery | Fire specialist | Independent London practice with a heritage and complex mixed-use specialism. |
| Trigon Fire Safety | Fire specialist | Independent fire safety engineering consultancy in Richmond, working across new build and remediation. |
| WSP | Multidisciplinary | Large UK fire engineering team spanning new build, existing buildings and remediation, across buildings and infrastructure. |
How to choose one
The differences that actually matter on a project are rarely the ones on the website.
- Who does the work. The director you meet at the interview is not the person writing your strategy. Ask who is, and what they have done.
- Relevant building type. A team that is excellent on hospitals is not automatically the right team for a 25-storey residential tower going through Gateway 2. Ask for a comparable project, not a client list.
- Gateway 2 experience, specifically. Not "we are familiar with the Building Safety Act", but how many applications have they taken through, and what happened to them.
- Whether they do performance-based work in house. If your building will need modelling, find out whether it is done by the same team or subcontracted.
- Professional indemnity insurance. Cover levels and, critically, whether there are cladding or combustible-materials exclusions. This is the question people forget to ask and regret later.
- The exclusions in the fee proposal. Compare those before you compare the numbers. See our guide to fire engineering fees.
Specialist or multidisciplinary
3 broad categories appear above, and the practical trade-off is this. A multidisciplinary practice gives you fire engineering coordinated with structures and services under one appointment, which removes a coordination risk that is real and expensive. An independent specialist gives you a team that does nothing else, and an opinion that is not shaped by the rest of the appointment.
Neither is better. On a complex building with heavy services interaction the coordination argument usually wins; on a contested existing building where the opinion itself is the deliverable, independence usually does.
Corrections and additions
This list is compiled from public information and will be incomplete. If your practice should be listed, a detail is wrong, or your ownership has changed, email hello@firestrategy.ai and it will be corrected. There is no charge and no advertising on this page.