Top 150 consultants

Top 50 QSs

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2015 rank2014 rankFirmUK surveying staff: Total charteredUK surveying staff: QuantityUK surveying staff: BuildingUK surveying staff: OtherUK surveying staff: Non-chartered /technicalTotal UK chartered staff: 2014Total UK chartered staff: 2015Total UK staff: 2014Total UK staff: 2015Offices: UKOffices: Worldwide
33Turner & Townsend*6085326791,2821,3631,6421,8971390
66Gardiner & Theobald3463461054435086316871114
89Sweett Group36025249593804394334932158
98Mott MacDonald*24524500972,8473,0335,5365,93338192
1213Ridge & Partners1357357580196226370434910
1414Riley Consulting816341441100104199218123
1516Currie & Brown65521304277881771881027
1615Hill International UK56505139708216719980
18Stace 583519447929416316644
1926=Schofield Lothian35332018566811513011
20=28Deloitte Real Estate40630253514824647797532424
2320=Leslie Clark Construction Consultants352816345345848057
2424=Jackson Coles 32272304242535322
2524=Doig and Smith 28262293036577344
2830=Potter Raper Partnership39247844455411413833
2933Ward Williams Associates262240292731637157
30=30=Pick Everard5021282351931974534701010
30=37=Thomson Gray 2321232126253133
32Allan & Hanel19190082019303022
33=34CalfordSeaden 511734040737220722766
33=Hardies Property & Construction401781510344270811414
3541Arup Group181620221,4581,5613,9864,5141492
36=39=AA Projects 431519918636612611577
36=29John Rowan and Partners 221534353432919635
36=35Synergy Group211542192323798533
36=Procom-IM 19154001019122211
41=45=Leach Consultancy 13131413141444
4345=Keegans 2911170262833606722
4442=Poole Dick101000111010242722
45=45=Interserve Consulting1493253029618311
45=Solomons Europe993449244433
47=Watts Group 5885032688112312688
50=Frankham Consultancy 34725256697122823755
50=Pellings 44733413586511211744
50=Bailey Partnership237160164344828644
50=45=SDA Consulting1072171311262511
50=Hargreave Jones77689172622

Methodology and notes

Barbour ABI, provider of construction intelligence services and Building sister company, contacted more than 500 firms for this year’s Building Top Consultants’ Survey. They were sent a survey form asking for details on the number of chartered staff, non-chartered and technical staff, and domestic and worldwide fee incomes. Firms are ranked according to total UK chartered staff, and for QSs, architects, engineers and project manager by chartered staff in each respective discipline. Practices were also asked questions relating to: staff recruitment, wage patterns, margins, areas of work, and work expectations.

The survey relies upon firms completing and returning the annual survey form. For a variety of reasons firms sometimes decide not to take part. Only those firms that complete and return the survey form are included in the survey. Firms with any questions about the survey, or that wish to be included in the 2016 survey, should contact Barbour ABI
( or by email to


  • Atkins figures reflect acquisition of Terramar AS and divestment of Atkins Poland and Atkins Portugal
  • Aecom figures reflect merger with URS in October 2014
  • Mott Macdonald figures reflect acquisition of JN Bentley, and include Franklin + Andrews Limited
  • Arcadis figures reflect acquisition of Hyder Consulting in October 2014 and incorporation of EC Harris, which was ranked 1 in the top surveyors table in 2014
  • WSP figures reflect the acquisition of Parsons Brinckerhoff
  • Turner & Townsend figures reflect acquisition of Thinc Group Holdings Pty Limited
  • CBRE figures reflect acquisition of Johnson Controls, and 2015 numbers include 4,000 Norland staff in UK and 10 Norland offices
  • Ramboll figures reflect acquisition of Environ UK Ltd
  • Gleeds 2015 total staff figures include temporary and long-term freelance staff
  • WYG figures reflect acquisition of FMW Consultancy and Alliance Planning
  • HurleyPalmerFlatt figures reflect acquisition of 51% of Andrew Reid and Partners
  • AHR figures reflect July 2014 demerger from Aedas, with latest financials relating to first year as AHR
  • TP Bennett office figure includes 29 affiliate offices
  • Aukett Swanke figures reflect acquisition of 80% of John R Harris & Partners
  • McAndrew Martin figures reflect acquisition of Brunel Design Group and Veness Chartered Surveyors
  • K2 Consultancy figures reflect acquisition of Rider Hunt (London)
  • Fairhurst formerly W A Fairhurst & Partners
  • RPP trading as Rex Procter & Partners
  1. Un-audited
  2. Approx
  3. Forecast
  4. 18 months
  5. Including project offices