| SHORT NAME | FULL NAME |
| A |
| ABB Eutech | ABB Eutech Process Solutions |
| AD | Acoustic Design Consultants |
| ACS Environmental | ACS Environmental Services Ltd |
| Adams Kara Taylor | Adams Kara Taylor Limited |
| Advantica | Advantica Technologies Ltd |
| A. I. Terra | Agencja Inwestycyjna TERRA |
| A.S.E.L. | Airport Systems Engineering Limited |
| Air Qual Consult | Air Quality Consultants Ltd |
| ARA | Alan Rowley Associates |
| Allen, Gordon | Allen, Gordon & Co |
| Firebrace | Andrew Firebrace Partnership |
| AH&P | Andrew Howard and Partners |
| Anthony Hunt | Anthony Hunt Associates Limited |
| APEM | APEM Ltd |
| AGE | Applied Geotechnical Engineering Ltd |
| Archibald Shaw | Archibald Shaw Limited |
| Arup | Arup Group |
| Ashact Ltd | Ashact Limited |
| Ashton Bennett | Ashton Bennett Consultancy |
| Asset | Asset Consulting Engineers Limited |
| ASSMANN BERATEN + PLANEN | ASSMANN BERATEN + PLANEN GmbH |
| ALS Ltd | Associated Laboratory Services Ltd |
| Atkins | WS Atkins plc |
| Auld Associates | Alan Auld Associates Ltd |
| Austin Trueman Associates | Austin Trueman Consulting Engineers |
| B |
| Babtie | Babtie Group Ltd |
| Bailey Johnson Hayes | Bailey Johnson Hayes Ltd |
| J Banner | J Banner Limited |
| Michael Barclay | Michael Barclay Partnership |
| BASEC | British Approvals Service for Cables |
| Beckett Rankine | Beckett Rankine Partnership |
| BEP Consulting Engineers | BEP Consulting Engineers Ltd |
| B.E.S. | B.E.S. Consulting Engineers Ltd |
| Bettridge | Bettridge Turner & Partners |
| BHR Group | BHR Group Limited |
| BHO'H | Bingham Hall O'Hanlon Partnership |
| Biwater | Biwater Treatment Ltd |
| BVCs | Black & Veatch Consulting |
| Blyth & Blyth | Blyth & Blyth Consulting Engineers Ltd |
| BMT Cordah | BMT Cordah Limited |
| BOMEL | BOMEL Ltd |
| Booth-Seismic | Edmund Booth Consulting Engineer |
| Boreham | Boreham Consulting Engineers Ltd |
| Michael Bradbrook | Michael Bradbrook Consultants Limited |
| B.C.A.L. | Brian Cole Associates Ltd |
| Robert Bruce | Robert Bruce & Sons |
| BDP | Building Design Partnership |
| Bullen Consultants | Bullen Consultants Limited |
| Bunyan Meyer | Bunyan Meyer & Partners Ltd |
| Business Eco Network | Business Eco Network Ltd |
| Bylander | Bylander Ltd |
| C |
| Cadogan | Cadogan Consultants |
| CALSOL | Calculated Solutions (UK) Ltd |
| CMA | Calver Marketing Associates Limited |
| CCL | Cambridge Consultants Ltd |
| RM Cameron | RM Cameron Environmental Services Ltd |
| Capita | Capita Gwent Consultancy |
| Card | Card Geotechnics Limited |
| Cass Hayward | Cass Hayward and Partners |
| Cater Day | Cater Day Ltd |
| C.A.T. | Centre for Alternative Technology |
| CERAM | CERAM Research |
| CETEC | CETEC Consultancy Ltd |
| Chamberlain | Chamberlain Consulting LLP |
| Chapman Bathurst | The Chapman Bathurst Partnership Ltd |
| Chatfield Research | Chatfield Applied Research Laboratories Ltd |
| CE Consultants | Christian Environmental Consultants |
| CKG | CKG Consultancy Ltd |
| Clarke Bond | Clarke Bond Group Ltd |
| Clarke, Nicholls & Marcel | Clarke, Nicholls & Marcel Ltd |
| Clear Structures | Clear Structures Ltd |
| Cole Easdon | Cole Easdon Consultants Ltd |
| Cole Jarman | Cole Jarman Associates |
| CRA (UK) Ltd | Conestoga Rovers & Associates (UK) Ltd |
| CMI | Con-Mar International Limited |
| CONSULINT | CONSULINT Ltd |
| CEC (London) Ltd | Consulting Engineers' Co-Partnership (London) Ltd |
| C.A.R.E. Ltd | Conversion And Resource Evaluation Ltd |
| CEC | Cornwall Environmental Consultants Ltd |
| Robert Cowan | Robert Cowan Associates Ltd |
| Cruden | A F Cruden Associates |
| CJP | Cundall Johnston & Partners LLP |
| Curtins Consulting | Curtins Consulting Engineers |
| D |
| Peter Dann | Peter Dann Ltd |
| Deakin Walton | Deakin Walton Ltd |
| Dinardo | Dinardo Partnership |
| Dixon Hurst Kemp | Dixon Hurst Kemp Ltd |
| DNV | DNV Consulting + DNV Technology Services |
| DSSR | Donald Smith, Seymour & Rooley |
| Dorman Long | Dorman Long Technology |
| Dorsch Consult | Dorsch Consult Ingenieurgesellschaft mbH |
| D.E.C. | Dorset Engineering Consultancy |
| Dougall Baillie | Dougall Baillie Associates Ltd |
| T. Dunwoody | T. Dunwoody & Partners |
| Durham CC | Durham County Council |
| E |
| Eagles Lawton Moody | Eagles Lawton Moody Partnership Ltd |
| ETEL | Earth Tech Engineering Ltd |
| Eastwood | Eastwood & Partners |
| EC Harris | EC Harris LLP |
| Ecolibrium Ltd | Ecolibrium (Environmental Science & Management) Ltd |
| ECON | Econ-Ecological Consultancy |
| Eco Technology | Eco Technology Ltd |
| EDGE Consultants | EDGE Consultants UK Ltd |
| EDS | EDS Engineering Design Services Ltd |
| EEUK | Electrowatt-Ekono (UK) Ltd |
| EC | Engineering Consultancy |
| EDC | Engineering Design Consultants |
| EMCS | Engineering Materials Consultancy Service |
| Ensecon | Ensecon Laboratories Ltd |
| Entec UK | Entec UK Ltd |
| Enviro-Mark | Enviro-Mark Systems Ltd |
| Environmental Consulting | Environmental Consulting Services |
| ESI | Environmental Simulations International |
| ETC | Environmental Technology Consultants |
| Enviros | Enviros Consulting Ltd |
| ERA Technology | ERA Technology Ltd |
| ER Surveys | 1st ER Surveys Ltd |
| ESD | ESD Ltd |
| F |
| Fairhurst | W A Fairhurst & Partners |
| Fenviron | Audit Environmental & Fenviron |
| Fichtner | Fichtner Consulting Engineers Ltd |
| Fichtner Consulting Engineers | Fichtner GmbH & Co. KG |
| Finnmap Consulting | Finnmap Consulting Oy |
| Fordham Johns | Fordham Johns Partnership |
| Max Fordham | Max Fordham LLP |
| Fothergill & Co | Fothergill and Company Ltd |
| G |
| GCA | Gaffney, Cline & Associates Ltd |
| Galson Sciences | Galson Sciences Ltd |
| Graham Garner | Graham Garner and Partners Ltd |
| GCA | GCA (UK) Ltd |
| TGP | Tony Gee and Partners |
| Geoconsult | Geoconsult ZT GmbH |
| Geoffrey Walton | The Geoffrey Walton Practice |
| Geotechnical Engineering | Geotechnical Engineering Ltd |
| Geotechnics | Geotechnics Limited |
| Gifford | Gifford and Partners |
| Glanville | Glanville Consultants Ltd |
| Golder Assocs | Golder Associates (UK) Ltd |
| Goodson | Goodson Associates |
| Gray | C D Gray & Associates |
| Gregory LLP | R. W. Gregory LLP |
| Groenewout bv | Groenewout Consultants & Engineers |
| H |
| H2Ok Systems Ltd | H20k Systems Ltd |
| CHAL | Clive Hadfield & Associates Ltd |
| Halcrow | Halcrow Group Ltd |
| Harley Haddow | Harley Haddow Partnership |
| Highland | Highland Council Consultancy |
| Marcus Hodges | Marcus Hodges Environment |
| HR Wallingford | HR Wallingford Group Ltd |
| George Hutchison | George Hutchison Associates Ltd |
| Hydro-Logic | Hydro-Logic Ltd |
| I |
| Ian White Associates | Ian White Associates Ltd |
| IECS | Institute of Estuarine and Coastal Studies |
| IMC Group Consulting | IMC Group Consulting Ltd |
| INVC | Industrial Noise & Vibration Centre |
| INI Environmental | INI Environmental Services Ltd |
| IUI | INTECSA-UHDE-INDUSTRIAL SA |
| IGES | Integrated Geotechnical & Environmental Services (IGES) Ltd |
| IFL | Ironside Farrar Ltd |
| J |
| JBA | JBA Consulting Engineers & Scientists |
| JMDynamics | JMDynamics Limited |
| JPB | Johnson Poole & Bloomer |
| Patrick Johnston | Patrick Johnston Associates Ltd |
| Joynes Pike | Joynes Pike & Associates Ltd |
| JP Chick | JP Chick & Partners Ltd |
| JPD Group | JPD Group Ltd |
| Jubb Consulting | Jubb Consulting Engineers Limited |
| Juniper | Juniper Consultancy Services Ltd |
| K |
| Kashec | Kashec Ltd |
| Keimar | Keimar Consultancy Ltd |
| M W Kellogg | M W Kellogg Ltd |
| Chris Kendall Associates Ltd | Chris Kendall Associates Limited |
| Kirklees MC | Kirklees Metropolitan Council |
| Knight Environmental | Knight Environmental Ltd |
| Aaro Kohonen | Aaro Kohonen Oy |
| KRA | KRA Consultant Engineers Ltd |
| L |
| Lahmeyer | Lahmeyer International GmbH
|
| Land Quality Management | Land Quality Management Ltd |
| LBH Wembley | LBH Wembley Geotechnical & Environmental Ltd |
| Lechwe Consultancy | Lechwe Consultancy Ltd |
| LAP | Leonhardt, Andrä und Partner Beratende Ingenieure VBI, GmbH |
| Listers Geotechnics | Listers Geotechnical Consultants |
| London Offshore Consultants | London Offshore Consultants Limited |
| M |
| MacAlister Elliott | MacAlister Elliott and Partners Ltd |
| Malachy Walsh | Malachy Walsh and Partners |
| MEDC | Manchester Engineering Design Consultancy |
| Marchwood | Marchwood Scientific Services Ltd |
| MSAL | Martin Stockley Associates Limited |
| MIG | Matan International Group |
| MCA | MCA Consulting Engineers Ltd |
| McLay Collier | McLay Collier & Partners |
| McLellan | McLellan and Partners Ltd |
| Merrett Survey | Merrett Survey Partnership |
| MFD International | MFD International Ltd |
| Michael D Joyce | Michael D Joyce Associates LLP |
| MLM | The MLM Group |
| Monition Ltd | Monition Ltd (International) |
| Monson | Monson Engineering Ltd |
| Multi Design | Multi Design Consultants Ltd |
| N |
| NSRI | National Soil Resources Institute |
| NCL St James | NCL St James Ltd |
| NEDECO | NEDECO Netherlands Engineering Consultants |
| Newton Technology Resources | Newton Technology Resources Limited |
| NCP | Nicholls Colton and Partners Limited |
| Nicholson Jones | Nicholson Jones Partnership Limited |
| NIRAS | NIRAS Consulting Engineers and Planners A/S |
| NNC | NNC Ltd |
| Noble Denton | Noble Denton Europe Ltd |
| Norder Design | Norder Design Associates Limited |
| NEMS | Northern Environmental & Monitoring Services |
| Norwest Holst | Norwest Holst Soil Engineering Limited |
| O |
| Oakwood Environmental | Oakwood Environmental Ltd |
| Oasys Ltd | Oasys Limited |
| O'heal | Occupational Health & Environment Assessments Ltd |
| OPEC | Oil Pollution Environmental Control Ltd |
| P |
| Parsons Brinckerhoff | Parsons Brinckerhoff Ltd |
| PGIL | Parsons Group International Ltd |
| Paul Reading | Paul Reading & Partners |
| R. Paxton & Associates | R. Paxton & Associates Ltd |
| Pearce | Edward A. Pearce & Partners |
| Pearce Environmental | Pearce Environmental Management |
| Pell Frischmann | Pell Frischmann Consultants Ltd |
| Penspen | Penspen Ltd |
| PBA | Peter Brett Associates |
| PDC | Plandescil Limited |
| JPC | The John Pooley Consultancy |
| Powys CC | Powys County Council |
| Pro Enviro | Pro Enviro Ltd |
| John Pryke | John Pryke & Partners |
| PSI | PSI AG |
| PWA | PWA Parker Wilson |
| Q |
| Quest Technical | Quest Technical Services Ltd |
| R |
| RAMBØLL | Rambøll, Hannemann and Hojlund A/S |
| Raymond Europe | Raymond Professional Group (Europe) Limited |
| Rennie & Kirkwood | Rennie & Kirkwood Ltd |
| Rennie Park | Rennie Park Associates |
| REC Ltd | Resource & Environmental Consulants Ltd |
| RHB | RHB Partnership |
| Robert Long | Robert Long Consultancy Ltd |
| Roger Preston & Partners | Roger Preston International / Roger Preston & Partners Limited |
| Roseconsult | Rosebury Consulting Ltd |
| ROSE Consulting | ROSE Consulting Engineers Limited |
| Roughton Group | Roughton Group Ltd |
| Rowland Design | Rowland Design Associates |
| RPS | RPS Group plc |
| RPS-MCOS | RPS-MCOS Ltd |
| S |
| G K Salter | G K Salter & Associates |
| Sands | A J Sands Ltd |
| Mike Sarling | Michael Robert Sarling |
| CSP | Charles Scott & Partners |
| SEIB | SEIB Ingenieur-Consult GmbH & Co. KG |
| SEYAS | SEYAS International |
| Sharps Redmore | Sharps Redmore Partnership |
| Sheppard | E A R Sheppard |
| Sherrell Frederick | Frederick Sherrell Limited |
| Shutlers | SP Shutler Associates Ltd |
| SIAS | SIAS Ltd |
| ST | Skanska Technology Ltd |
| SKEE | Stewart King Environmental Engineers Ltd |
| Slender Winter | Slender Winter Partnership |
| Smile Plastics | Smile Plastics Ltd |
| Smithers Purslow | Smithers Purslow and Company Limited |
| Smith Grant | Smith Grant LLP |
| M A Smith | M A Smith Environmental Consultancy |
| Snamprogetti | Snamprogetti Ltd |
| Soil and Water | Soil and Water Group |
| Soils | Soils Ltd |
| Robert Somerville | Robert Somerville Associates |
| Southern Testing | Southern Testing Laboratories Ltd |
| STATS | STATS Consulting Group |
| The Steel Construction Inst. | The Steel Construction Institute |
| Steer Davies Gleave | Steer Davies and Gleave Ltd |
| Stirling Maynard | Stirling Maynard and Partners |
| Sub Soil Consultancy Services | Sub Soil Consultancy Services Ltd |
| Such Salinger Peters | Such Salinger Peters Limited |
| Survey Force | Survey Force Ltd |
| SVM | SVM PLC |
| Symonds | Symonds Group |
| T |
| Taggart | WDR & RT Taggart |
| TA Millard | TA Millard Limited |
| Tapsell Wade | Tapsell Wade & Partners Ltd |
| Rupert Taylor | Rupert Taylor F.I.O.A. |
| TEAM Engineering | TEAM Engineering Srl |
| Technital | Technital S.p.A. |
| TECNATOM | TECNATOM, S.A. |
| Tenby | Tenby Consultancy Group |
| Terence Lee | Terence Lee Partnership |
| Terradat | Terradat (UK) Ltd |
| Terra Vac | Terra Vac (UK) Ltd |
| Thomasons | Thomasons LLP |
| TSL | Trendrevel Services Ltd |
| Trident | Trident Consultants Ltd |
| Trigram | Trigram Partnership |
| Tully De'Ath | Tully De'Ath (Consultants) |
| Tynemarch | Tynemarch Systems Engineering Limited |
| Tyrrell | Tyrrell Consultants |
| U |
| Upton McGougan | Upton McGougan PLC |
| URS | URS Corporation Ltd |
| V |
| VERYARDS | VERYARDS Ltd |
| Vibrock | Vibrock Ltd |
| VMA | Vivion McMahon Associates |
| W |
| Wallace Stone | Wallace Stone & Partners |
| Robert Walpole | Robert Walpole and Partners |
| Ward Cole | Ward Cole Consulting Engineers |
| Warwickshire CC | Warwickshire County Council |
| WMC | Water Management Consultants |
| Waterman Group | Waterman Group Ltd |
| Welmet | Welmet Limited |
| Robert West | Robert West Group |
| Whitby Bird & Partners | Whitby Bird & Partners Limited |
| DCW&P | D. C. White & Partners Ltd |
| White Royall | White Royall Limited |
| Wigan Council – Des | Wigan Council – Department of Engineering Services |
| Owen Williams | Owen Williams Group Ltd |
| Mike Worby | Mike Worby Survey Consultancy |
| Z |
| ZBP | Zisman Bowyer & Partners |