Establishment Address Name Street 1 Street 2 Street 3 Town/City Post Code

A & L Mechanical Installations Ltd (Kilmarnock) The Station Crosshouse Road Kilmaurs Near Kilmarnock KA3 2TU

A J Structural Steels Ltd (Dewsbury) 1a The Town Thornhill Dewsbury WF12 0QZ

A L Crane Hire & Erection (Darlington) 6 Headingley Crescent Darlington DL1 2ST

A.G.S (Steel Erectors) Ltd (Lanarkshire) Unit 9

Coatbank Business Centre Coatebank Way Coatbridge ML5 3AG

Able Stainless Steel Fabrications Ltd (Derby)

Cadley Hill Road Swadlincote Derby DE11 9EQ

Addison Project PLC (Lancashire)

Hillhouse International Site Fleetwood Road North

Thornton-Cleveleys FY5 4QD

Aermech Ltd (Pembrokeshire) Strawberry Hill Pembroke Dock SA71 5PG

AHL Industrial Pipework Specialists Ltd (Jarrow) Suite 4.3

Pennine House Washington NE37 1LY

Ainscough Wind Energy Services Ltd (Wigan) Bradley Hall Bradley Lane Standish Wigan WN6 0XQ

Air Products PLC (Process Systems Division) Hersham Place Molesey Road

Walton-on-Thames KT12 4RZ

Aker Solutions Ltd (Aberdeen) Building 1

Aberdeen International Business Park Dyce Drive Aberdeen AB21 0BR

Alfa Laval Ltd (Parts and Service Division) 7 Doman Road Camberley GU15 3DN

Allied Protek Engineering Solutions Ltd (Grimsby) Armstrong Street Grimsby DN31 1XD

Alpha Plus Ltd (Sheffield) 336 Coleford Road Darnall Sheffield S9 5PH

Alstom Power Ltd (Ashby-de-la-Zouch) Excelsior Road Ashby-de-la-Zouch LE65 1BU

Alstom Power Ltd (Knutsford) Booths Park Chelford Road Knutsford WA16 8GE

Amalgamated Construction Ltd (Engineering Maintenance Division) Whaley Road Barugh Barnsley S75 1HT

AMEC Foster Wheeler Energy Ltd (Reading) Shinfield Park Reading RG2 9FW

AMEC Foster Wheeler Group Ltd (Clean Energy) No 2 Booths Park Chelford Road Knutsford WA16 8QZ

AMEC Foster Wheeler Group Ltd (Darlington) Lingfield House Lingfield Point Darlington DL1 1RW

AMEC Foster Wheeler Group Ltd (London) 12th Floor 25 Canada Square

Canary Wharf London E145LQ

Anglian Erection Services Ltd (Dereham) Trafalgar House Rashs Green Dereham NR19 1JG

Apollo Offshore Engineering Ltd (Aberdeen)

Nautilus House 35 Waterloo Quay Aberdeen AB11 5BS

Applus UK Ltd (Falkirk) Block 2 Unit C&D West Mains Industrial Estate Falkirk FK3 8YE

Aquaterra Energy Ltd (Norwich) Innovation House Alkmaar Way Norwich NR6 6BF

Aquazone Ltd (Great Yarmouth)

Unit D, Munnings Court

Harfreys Road Harfreys Industrial Estate Great Yarmouth NR31 0LS

Aquila Nuclear Engineering Ltd (Twyford) Aquila House

Hazeley Enterprise Park Hazeley Road Twyford SO21 1QA

ARC Fabrications Ltd (King's Lynn)

Garage Lane Industrial Estate Setchley Kings Lynn PE33 0BE

Archbell Greenwood Structures Ltd (Fleetwood) Lofthouse Way Fleetwood FY7 6ST

Arcsure Engineering Solutions (Lincolnshire) Ltd (Winterton) 114 Northlands Road Winterton DN15 9UW

Atkins Ltd (Nuclear Decommissioning & Generation) The Hub 500 Park Avenue Almondsbury BS32 4RZ

Atkins Ltd (Oil & Gas) 6 Golden Square Aberdeen AB10 3AT

Atlantic Projects Company (UK) Limited (Derby) Peat House 5 Stuart Street Derby DE1 2EQ

ATS (Services) Ltd (Heathfield) Suite 9 & 10 33a High Street Heathfield TN21 8HU

Austin Company of UK Ltd (Rickmansworth) Cardinal Point Park Road Rickmansworth WD3 1RE

AVT Reliability Ltd (Warrington) 2 Easter Court Europa Boulevard Warrington WA5 7ZB

Bechtel Ltd (London) First Central 200 2 Lakeside Drive London NW10 7FQ

Beck & Pollitzer Engineering Ltd (Dartford) Burnham Road Dartford DA1 5BD

Bilfinger Industrial Automation Services Ltd (Newton-le-willows) Wilson House Kelburn Court Daten Park Warrington WA3 6JA

Bilfinger Industrial Services UK Ltd (Runcorn) Wilson House Kelburn Court Daten Park Warrington WA3 6JA

Bilfinger Salamis UK Ltd (Aberdeen) 4 Greenhole Place Bridge of Don Aberdeen AB23 8EU

Blackrow Engineering Co. Ltd (Grimsby) Estate Road 7 South Humberside Industrial Estate Grimsby DN31 2TP

Boulting Group Ltd (Warrington) Boulting House

Firecrest Court Centre Park Warrington WA1 1RG

Boustead International Heaters Ltd (Burgess Hill) Europa House

Woodlands Court Albert Drive Burgess Hill RH15 9TN

Braddan Structures Ltd (Darlington) Braddan House

Cleveland Trading Estate Forge Way Darlington DL12PB

BTH Boiler Services (2010) Ltd (Birmingham)

36 Manor Park Road Castle Bromwich Birmingham B36 0DJ

Buchen-ICS Ltd (Scunthorpe) 25B Northampton Road Scunthorpe DN16 1UJ

Burnbeam Ltd (Crewe) 12 Eastgate Road Holmes Chapel Crewe CW4 7BW

C. & P. Engineering Services Ltd (Swansea)

Gorseinon Road Gorseinon Swansea SA4 9GE

C. Sharp Construction Ltd (Leeds) 76 Old Road Churchwell Leeds LS27 7TH

C.T. Steel Site Services Ltd (Darlington) 64 Neville Road Darlington DL3 8NE

Cadrecruit Ltd (Basingstoke) South Building Upper Farm Wootton St. Lawrence Basingstoke RG23 8PE

Cameron Flow Control Technology (UK) Ltd (West Sussex)

Process Systems

Schlumberger House

Buckingham Gate

Gatwick Airport West Sussex RH6 0NZ

Cape Engineering Services Ltd (Middlesborough) RBC House

Sotherby Road

Skippers Lane Industrial Estate

South Bank Middlesbrough TS6 6LP

Cape Industrial Services Ltd (Offshore Services Division) Kirkton Drive Pitmedden Industrial Estate Dyce AB21 0BG

Cardiff Steel Erection Ltd (Caerphilly) Unit 6 Roundabout Court

Bedwas House Industrial Estate Caerphilly CF83 8FS

Cavendish (Northern) Ltd (Billingham) Beaumont House

Macklin Avenue

Cowpen Lane Industrial Estate Billingham TS23 4HF

Cavendish Nuclear Ltd (Bristol) Ashton House PO Box 103 Ashton Vale Road Bristol BS3 2HQ

Cavendish Nuclear Ltd (Leicester) Radar Road Leicester LE3 1UF

CB&I UK Ltd (Paddington) 40 Eastbourne Terrace Paddington W2 6LG

Claxton Engineering Services Ltd (Great Yarmouth)

Bureside House North River Road Great Yarmouth NR30 1TE

Clyde Bergemann Materials Handling Ltd (Doncaster)

Lakeside Boulevard Lakeside Doncaster DN4 5PL

Clydeforth Engineers & Contractors Ltd (Glasgow)

Barclay Curle Complex 739 South Street Glasgow G14 0BX

Conroy Electrical Ltd (Rawtenstall) Simonstone House Bacup Road Rawtenstall BB4 7PA

Corgin Ltd (Stafford) Bellasis Street Stafford ST16 3DD

Cortez Subsea Ltd (Aberdeen) Ground Floor Silverburn Lodge Claymore Drive Bridge of Don AB23 8GD

Costain Oil, Gas & Process Ltd (Wythenshawe) Costain House Aviator Way Wythenshawe M22 5TG

Covol Engineering Limited (Billingham) 15 Earls Nook Belasis Hall Technology Park Billingham TS23 4EF

Crondall Energy Consultants Ltd (Winchester)

Crondall House 1 Exchange Square Winchester SO23 8FJ

Croston Engineering Ltd (Chester) Tarvin Mill Barrow Lane Tarvin Chester CH3 8JF

Curzon Clarke Engineering Ltd (Mansfield) Mill Farm Church Warsop Mansfield NG20 0SF

D & L Structural Steel Ltd (Hull) 12 Plantation Drive West Hull HU4 6XD

D.A. Hayward & Son Ltd (Whitchurch) Hillcrest Ash Whitchurch SY13 4DJ

Dan Herrick Construction Ltd (Sheffield)

Eckington Business Centre 62 Market Street Eckington S21 4JH

Davey Site Services Ltd (Milford Haven)

Plot 7, Waterston Industrial Estate Main Road Waterston Milford Haven SA73 1DP

Dee Tech Services Ltd (Hawarden) Clwyd Close Hawarden Industrial Park Hawarden CH5 3PZ

Defabs Engineering Ltd (Derby) Clarke Street Derby DE1 2BU

Delta Engineering Group Ltd (South Killingholme)

Harsco Building Manby Road South Killingholme DN40 3DX

Devmark Ltd (Sittingbourne) Kestrels Chequers Hill Doddington Sittingbourne ME9 0BN

Diamond Power Specialty Ltd (Dumbarton) Block 10 Vale of Leven Industrial Estate Dumbarton G82 3AD

DMG Control Systems Ltd (Washington) 9 Bridgewater Road Hertburn Industrial Estate Washington NE37 2SG

Don Scaife Steel Erecting (Spalding) 55 Mill Lane Whaplode Spalding PE12 6TS

Don Valley Engineering Company Ltd (Doncaster)

Sandall Stones Road Kirk Sandall Doncaster DN3 1QR

Doosan Babcock Ltd (Renfrew) Innovation House Porterfield Road Renfrew PA4 8DJ

Doosan Enpure Ltd (Birmingham) Doosan House Parklands Business Park Rubery Birmingham B45 9PZ

Dornan Engineering Services Ltd (London) 114a Cromwell Road London SW7 4ES

Dounreay Site Restoration Ltd (Thurso) Traill House 7 Olrig Street Thurso KW14 7BJ

DP Services Holdings Ltd (Glenrothes) Unit 1 Baltimore Road Lomond Business Park Glenrothes KY6 2PJ

DPS Pipework Services Ltd (Barnsley) Unit 6 Albion Drive Thurnscoe Barnsley S63 0DA

Eagle Structural Ltd (Louth) Theddlethorpe Road Great Carlton Louth LN11 8JS

East Midlands Instrument Company Ltd (Gainsborough)

Laughton Lane Morton Gainsborough DN21 3ET

Edwards Elite Engineering Ltd (Chester)

Unit 8, Dunkirk Industrial Estate

By Pass Road Dunkirk Chester CH1 6LZ

Emerson Process Management Ltd (Aberdeen)

METCO SERVICES DIVISION

Aberdeen Solutions Centre

1 Harvest Avenue

D2 Business Park, Dyce Aberdeen AB21 OBQ

Endotec Ltd (Immingham) Manby Hall Business Park Hall Park Road Immingham DN40 2LT

Energy & Environmental Services Ltd (Rotherham) Energy House

The Stonerow Way Parkgate Rotherham S60 1SG

Engenda Group Ltd (Runcorn) Dee House Hampton Court Tudor Road

Manor Park Runcorn WA7 1TT

ENGIE Fabricom UK Ltd (Grimsby) Europarc Origin 3 Origin Way Grimsby DN37 9TZ

Eniprogetti (Basingstoke) Eni House Basing View Basingstoke RG21 4YY

Equipdata Ltd (Merthyr Tydfil) Unit 1

Merthyr Tydfil Industrial Park Pentrebach Merthyr Tydfil CF48 4DR

EthosEnergy (GBR) Ltd (Aberdeen) Pavilion 4 Ethos House

Craigshaw Business Park

Craigshaw Road Aberdeen AB12 3QH

F.J. Booth Construction Ltd (Guisborough)

Unit 2, Victoria Court Rectory Lane Guisborough TS14 7GA

Farmtec Assets Ltd (Whitland) Gilfach Farm Cwmbach Whitland SA34 0DN

Fenelon Storage Tanks Ltd (Ellesmere Port) Roften House North Road Industrial Estate Ellesmere Port CH65 1AB

Fichtner Consulting Engineers Ltd (Stockport)

Kingsgate (Floor 3) Wellington Road North Stockport SK4 1LW

Fieldcore Service Solutions International LLC (Glasgow)

2 Central Quay 89 Hydepark Street Glasgow G3 8BW

Filtec Water Services Ltd (Irvine) 5 Portland Road Irvine KA12 8JE

Fluor Ltd (Farnborough) Fluor Centre 140 Pinehurst Avenue Farnborough GU14 7BF

FMC Kongsberg Services Ltd (Aberdeen) Wellington Circle Altens Aberdeen AB12 3JG

Fortis Engineering Services Ltd (Birkenhead) Unit 75 Woodside Business Park Birkenhead CH41 1EP

Franklyn Yates Engineering Ltd (Burton-on-Trent)

6 Granary Wharf Wetmore Road Burton-on-Trent DE14 1DU

Furness Engineering & Technology Ltd (Ulverston) Ellers Mill The Ellers Ulverston LA12 0AQ

G & G Engineering Group Ltd (Musselburgh) 14 Mayfield Avenue Musselburgh EH21 6HR

G & G Engineering Mechanical Services Ltd (Barnsley) Unit 3 Wath Road Elsecar Barnsley S74 8HW

G R Carr (Essex) Ltd (Basildon) Archers Fields Burnt Mills Industrial Estate Basildon SS13 1DN

GD Energy Services Ltd (Caithness) Lythmore House North

Forss Business & Technology Park Forss Caithness KW14 7UZ

GE Oil & Gas UK Ltd (Service Division) Silverburn House Claymore Drive Bridge of Don AB23 8GD

Genesis Oil & Gas Consultants Ltd (Aberdeen)

Pavillion 3, Aspect 32

Prospect Road

Arnall Business Park Westhill Aberdeen AB32 6FE

Genesis Oil & Gas Consultants Ltd (London) One St. Paul's Churchyard London EC4M 8AP

GEV Offshore Ltd (Hull) Unit 23 Priory Tec Park Saxon Way Hessle Hull HU13 9PB

Gordon Kitto Welding Ltd (St Helens) Merton Bank Road St Helens WA9 1HP

Graham Steel Erectors Ltd (Carlisle) Scaleby Hill Farm Chapel Lane Scaleby Hill Carlisle CA6 4LY

Granherne Ltd (Leatherhead) Hill Park South Springfield Drive Leatherhead KT22 7LH

Grayton Ltd (Barton-upon-Humber) Stanley House Falkland Way

Barton-upon-Humber DN18 5RL

Haden Freeman Ltd (Denton) Freeman House Orbital 24 Oldham Street Denton M34 3SU

Haven Engineering 2016 Ltd (Neyland)

Units 80 & 81 Honeyborough Business Park Neyland SA73 1SJ

HCM Electrical Ltd (Giltbrook) Unit 6 Amber Trading Estate Artic Way Giltbrook NG16 2HS

Hickey & Company (Brewery & Dairy Engineers) Ltd (Bromley)

16 Kingswood Avenue Shortlands Bromley BR2 0NY

Hi-Line Services (Lichfield) Ltd (Lichfield) 56 Britannia Way Lichfield WS14 9UY

Hitachi Zosen Inova UK Ltd (Farnborough) The Hub Fowler Avenue Farnborough GU14 7JF

Hold Engineering Ltd (Haile) Unit 29 Beckermet Industrial Estate Haile CA22 2NH

Holme Steel Fabricators Ltd (Scunthorpe) 2 Bessemer Way Sawcliffe Industrial Park Scunthorpe DN15 8XE

Horizon Nuclear Power Services Ltd (Gloucester) Sunrise House

1420 Charlton Court Gloucester Business Park Gloucester GL3 4AE

Hornbill Engineering Ltd (Neath) Unit 6

Darcy Business Park Llandarcy Neath SA10 6EJ

Howden UK Ltd (Renfrew) Old Govan Road Renfrew PA4 8XJ

Hydratight Ltd (Darlaston) Bentley Road South Darlaston WS10 8LQ

Hydro International (Wastewater) Ltd (Ely) Prickwillow Road Ely CB7 4TX

IDEC Power Services Limited (Stockton On Tees)

Concorde House

Concorde Way

Preston Farm Business Park Stockton On Tees TS18 3RB

Idec Technical Services Ltd (Stockton-on-Tees)

Concorde House

Concorde Way

Preston Farm Business Park Stockton-on-Tees TS18 3RB

Industrial Technology Systems Ltd (Middlesbrough) ITS House

High Force Road Riverside Park Middlesbrough TS2 1RH

InSite Technical Services Limited (Pembroke Dock) 1 Cleddau Bridge Business Park Pembroke Dock SA72 6UP

Inspec Systems Ltd (Hull) Sidings House

Sidings Business Park Freightliner Road Hull HU3 4XA

Intelect (UK) Ltd (Middlesbrough) Stephenson House Intelect Court Riverside Park Middlesbrough TS2 1QT

Interface Contracts Ltd (Oldham) Argent House Shaw Road Oldham OL1 4AW

IRISNDT Ltd (Immingham) Middleplatt Road Immingham DN40 1AH

ITS Testing Services (UK) Ltd (Dyce)

CALIBRATION & METERING SERVICES DIVISION

Units 19D & 20D

Wellheads Industrial Centre

Wellheads Crescent Dyce AB21 7GA

J & M Mechanical and Fabrication Ltd (Scunthorpe) East Common Lane Scunthorpe DN16 1DA

J L Engineering (Rixton) Ltd (Preston) Chapel Lane business park Chapel Lane Coppull PR6 4NB

J R Macro Ltd (Chelmsford) Sunnyside Vicarage Road Roxwell Chelmsford CM1 4NB

Jacobs Field Services Ltd (Grimsby) Armstrong Street West Marsh Industrial Estate Grimsby DN31 1XD

Jacobs UK Ltd (Winnersh) 1180 Eskdale Road Winnersh Wokingham RG41 5TU

Jacopa Ltd (West Bromwich) Cornwallis Road Millard Industrial Estate West Bromwich B70 7JF

JBD Tritec Ltd (Glasgow) 430, Helen Street Glasgow G51 3HR

Jee Ltd (Tonbridge) Hildenbrook House The Slade Tonbridge TN9 1HR

Jemsar Engineering Limited (Grimsby) Radnor House Greenwood Close

Cardiff Gate Business Park Cardiff CF23 8AA

JMN Construction Ltd (Eastleigh) 3 Morgan Le Fay Drive Chandlers Ford Eastleigh SO53 4JF

Johnson Matthey Davy Technologies Ltd (Paddington) 10 Eastbourne Terrace Paddington W2 6LE

Johnston Rigging (Fife) Ltd (Kirkcaldy) The Old Cluny Warehouse Cluny Kirkcaldy KY2 6QS

K Home International Ltd (Thornaby) Ingram House Allensway Thornaby Stockton on Tees TS17 9HA

K.C.M Services Ltd (Hull) Greendale Main Street Lelley Hull HU12 8SN

KCA Deutag Drilling Ltd (RDS) Bankhead Drive City South Office Park Porthleven AB12 4XX

KCS Herr-Voss UK Ltd (Halesowen) Glassworks House Park Lane Halesowen B63 2QS

Kellogg Brown & Root (UK) Ltd (Leatherhead) Hill Park Court Springfield Drive Leatherhead KT22 7NL

KentKraft Ltd (Rochester) Unit 26, Victory Park Trident Close Medway City Estate Rochester ME2 4ER

King Site Services (South West) Ltd (Treorchy)

47A Brook Street Blaenrhondda Treorchy CF42 5SA

Kirstall Ltd (Nantwich) Unit 5

Alvaston Business Park Middlewich Road Nantwich CW5 6PF

Laker Vent Engineering Ltd (Ellesmere Port) Laker House North Road Ellesmere Port CH65 1BA

Ledwood Mechanical Engineering Ltd (Pembroke Dock) Waterloo Industrial Estate Pembroke Dock SA72 4RR

Liquid Gas Equipment Ltd (Rosyth) William Rankin Bulding

Rosyth Business Park Rosyth Dunfermline KY11 2YD

LME (UK) Ltd (Cardiff) PO Box 3167 Unit 18 Lamby Workshops Lamby Way Cardiff CF30 0FJ

Lodge Cottrell Ltd (Halesowen) Trinity Point East Halesowen B63 3HY

Lorien Engineering Solutions Ltd (Burton-on-Trent)

Millenium Court First Avenue Centrum 100 Burton-on-Trent DE14 2WH

M & N Electrical and Mechanical Services Ltd (Portland)

Unit 12, Southway Southwell Business Park Portland DT5 2JS

M & W Contractors (Pensnett) Ltd (Kingswinford) Dawley Brooke Road Kingswinford DY6 7BD

M C Integ Ltd (Bury St Edmunds) Integ House Rougham Industrial Estate Bury St Edmunds IP30 9ND

M C Steel Structures Ltd (Bridgnorth) 116 Papermill Cottage Alveley Bridgnorth WV15 6HF

Machine Monitoring Systems Ltd (Abingdon)

Hanger 1, Springfield Park PO Box 612 Abingdon OX14 9GU

Magnox Ltd (Berkeley) Berkeley Site Berkeley GL13 9PA

Magnox Ltd (Bradwell) Bradwell Site Bradwell on Sea Southminster CM0 7HP

Magnox Ltd (Chapelcross) Chapelcross Site Annan DG2 6RF

Magnox Ltd (Dungeness A) Dungeness Site Romney Marsh TN29 9PP

Magnox Ltd (Hinkley Point A) Hinkley Point A Site Near Bridgwater TA5 1YA

Magnox Ltd (Hunterston A) Hunterston A Site West Kilbride KA23 9RA

Magnox Ltd (Oldbury) Oldbury Site Thornaby BS35 1RQ

Magnox Ltd (Sizewell A) Sizewell A Site Near Leiston IP16 4UE

Magnox Ltd (Trawsfynydd) Trawsfynydd Site Blaenau Ffestiniog LL41 4DT

Magnox Ltd (Wylfa) Wylfa Nuclear Power Station Camaes Anglesey LL67 0DH

MAN Energy Solutions UK Ltd (Primeserv)

1 Mirrlees Drive Hazel Grove Stockport Cheshire SK7 5BP

MAN Energy Solutions UK Ltd (Redhill) Betchworth House Queensway Redhill RH1 1DL

Manrochem Ltd (Brighouse) Hastings House Birds Royd Lane Brighouse HD6 1LQ

Matom Ltd (Conwy) 24 Castle Street Conwy LL32 8AY

McDermott Marine Construction Ltd (Epsom) 1st Floor Global House 1 Ashley Avenue Epsom KT18 5AD

Mechatherm International Ltd (Kingswinford)

Hampshire House High Street Kingswinford DY6 8AW

Mectec Engineering Limited (Wrexham) Unit 18 Miners Park Wrexham LL12 0PJ

Meldrum Ltd (Carlisle) Unit 14 Currock Road Trade Centre Currock Road Carlisle CA2 5AD

MII Engineering Ltd (Caerphilly) Unit 20

Pant Glas Industrial Estate Bedwas Caerphilly CF83 8DR

Motherwell Bridge Ltd (Motherwell) PO Box 4 Logans Road Motherwell ML1 3NP

Mustang Engineering Ltd (Woking) WoodGroup Mustang Export House Cawsey Way Woking GU21 6QX

MW High Tech Projects UK Ltd (Chippenham)

Methuen South Bath Road Chippenham SN14 0GT

N.R.L Group Ltd (Egremont) NDT DIVISION

The Old Lodge Main Street Egremont CA22 2DB

Neptune Subsea Engineering Ltd (Aberdeen) 26 Carden Place Aberdeen AB10 1UQ

N-ERGISE Ltd (Great Yarmouth)

5th Floor Havenbridge House North Quay Great Yarmouth NR30 1HZ

NNB Generation Company (HPC) Ltd (Bridgwater) Mallard Court Express Park Bristol Road Bridgwater TA6 4RN

Noble Denton Consultants Ltd (Slough) 4th Floor Vivo Building 30 Stamford Street London SE1 9LQ

Normand and Thomson (Hillend) Ltd (Dalgety Bay)

Thomson House Ridgeway Hillend Industrial Park Dalgety Bay KY11 5JH

Northallerton Steel Erection Ltd (Northallerton) Whiteways

Wooden Hill Lane Romanby Northallerton DL7 8UX

Northern Combustion Systems Ltd (Dewsbury)

Pepperoyd Works Battye Street Dewsbury WF13 1NX

Nuffield Radiographic Inspection Ltd (Poole) Unit B13 & 14

46 Holton Road Holton Heath Poole BH16 6LT

Nuvia Limited (Warrington) Chadwick House

Birchwood Park Risley Warrington WA3 6AE

Oceaneering International Services Ltd (Dyce) Pitmedden Road Dyce AB21 0DP

Odour Services International Ltd (Cannock)

Unit 14 Morston Court

Kingswood Lakeside Cannock Staffordshire WS11 8JB

Offshore Design Engineering Ltd (Great Yarmouth) Marine Base 88 South Denes Road Great Yarmouth NR30 3QF

Offshore Design Engineering Ltd (Wimbledon)

St. George's House 5 St. George's Road Wimbledon SW19 4DR

On Line Design & Engineering Ltd (Immingham)

On Line House Pelham Road Immingham DN40 1AB

On Line People Ltd (Immingham) On Line House Pelham Road Immingham DN40 1AB

OneSubsea UK Ltd (Portlethen) Badentoy Avenue Portlethen AB12 4YB

Optimus (Aberdeen) Ltd (Aberdeen) Gordon House 27 Rubislaw Den North Aberdeen AB15 4AL

Optimus Services Ltd (Hull) OSL House Henry Boot Way Priory Park East Hull HU4 7DF

Orbis Engineering Services Ltd (Stafford) 35 Wolseley Court Staffordshire Technology Park Stafford ST18 0GA

Ovivo UK Ltd (Wolverhampton) Ovivo UK Limited 2nd Floor, i10 Building

Railway Drive Wolverhampton WV1 1LH

P & I Design Ltd (Thornaby) 2 Reed Street

Gladstone Industrial Estate Thornaby Stockton-on-Tees TS17 7AF

P.P.S Electrical Ltd (Barrow in Furness) 187 Duke Street Barrow in Furness LA14 1XU

Padken Steel Erectors Ltd (Warrington)

44 Bishopdale Close Great Sankey Warrington WA5 3DF

PD & MS Energy (Aberdeen) Ltd (Aberdeen) Ardent West North Esplanade West Aberdeen AB11 5QH

PDF Erection Services Ltd (Dorchester) Abbots Leat Nether Cerne Dorchester DT2 7AJ

Penspen Process Ltd (Surrey) 3 Water Lane

Richmond upon Thames TW9 1TJ

Peter J Douglas Engineering Ltd (Colwich) The Sidings Main Road Colwich ST17 0XD

Petrofac Facilities Management Ltd (Aberdeen) Bridge View 1 North Esplanade West Aberdeen AB11 5QF

Pipeweld International Ltd (Rochester) Nursery Court Stoke Road Hoo Rochester ME3 9NT

Pipex Ltd (Plymouth) Pipex House

Devon Enterprise Facility

1 Belliver Way Roborough Plymouth PL6 7BP

PJ Welding Limited (Newcastle Upon Tyne)

23 Cresswell Avenue Forest Hall

Newcastle Upon Tyne NE12 9DU

Plasticon UK Ltd (Hull) Stockholm Road Sutton Fields Industrial Estate Hull HU7 0XW

Premier Engineering Corporation Ltd (Dartford) Regus House Victory Way Admirals Park Dartford DA2 6QD

Primetals Asset Management UK Ltd (Sheffield) Davy House

Unit S, Europa Link Sheffield Business Park Sheffield S9 1XU

Proeon Systems Ltd (Norwich)

Hethel Engineering Centre

Chapman Way Hethel Norwich NR14 8FB

PROjEN Ltd (Preston Brook) PROjEN House Wellfield Preston Brook WA7 3AZ

Prontoport Ltd (Irvine) Unit 2 2a Kyle Road Irvine Industrial Estate Irvine KA12 8JF

Proviso Systems Ltd (Doncaster) Mattersey Road Doncaster DN10 5DS

Pruce Newman Pipework Ltd (Wymondham) Ayton Road Wymondham NR18 0QJ

Puma Engineering and Construction Ltd (Southampton) Unit 9 Brunel Road Calmore Industrial Estate Southampton SO40 3YS

PX Engineering Consultants Ltd (Stockton-on-Tees) PX House

Westpoint Road Stockton Road Stockton-on-Tees TS17 6BF

Quanta Fabricom Ltd (Newcastle upon Tyne)

Q16, Quorum Business Park Benton Lane

Newcastle upon Tyne NE12 8BX

Quartzelec Ltd (Rugby)

CERM BUSINESS UNIT

Castle Mound Way Central Park Rugby CV23 0WB

Quasam Limited (Cramlington) Hubbway House Suite 18 Bassington Lane Cramlington NE23 8AD

R & J Pipework Ltd (Brooke) Howe Pit Norwich Road Brooke NR15 1HJ

R J Wilson Steel Erection Ltd (Southampton)

180 Weston Lane Weston Southampton SO19 9HL

Rayfern Ltd (Peterborough) Treerange House

Minerva Business Park Lynch Wood Peterborough PE2 6QR

RB Plant Construction Ltd (Maidstone) RB House The Square Lenham Maidstone ME17 2PG

Redhall Jex Ltd (Bristol) Redhall House

14 Millbrook Road Yate Bristol BS37 5JW

Rever Offshore UK Ltd (Westhill) Atmosphere One

Prospect Road Westhill AB32 6FJ

Rhyal Engineering Ltd (Milford Haven) Units 8 Thornton Industrial Estate Milford Haven SA73 2RX

Robru Ltd (Preston) White Moss Gate Horns Lane Goosenargh Preston PR32NE

Rotamat Ltd (Chippenham) Units C & D Brunel Park Bumpers Farm Industrial Estate Chippenham SN14 6NQ

S & G Process Engineering Ltd (Sittingbourne) Unit 5C

Brickmakers Industrial Estate Castle Road Sittingbourne ME10 3RL

S & H Fabrications Ltd (Rochester) Unit 4, Jackson Park Kingsnorth Hoo Rochester ME3 9ND

S & M Pipework Ltd (Sheffield) 53 Pen Nook Gardens Deepcar Sheffield S36 2TX

S T & W Inspections Ltd (Sittingbourne)

Unit B13 St Georges Business Park Eurolink Industrial Estate Sittingbourne ME10 3TB

Saipem Ltd (Surrey) Saipem House 12-42 Wood Street Kingston upon Thames KT1 1TG

Schenck Process UK Ltd (Thorne) Unit 3 Alpha Court Capital Park Thorne DN8 5TZ

Sellafield Ltd (Decommissioning) Sellafield Site Seascale CA20 1PG

Sellafield Ltd (Major Projects) Sellafield Site Seascale CA20 1PG

SengS Subsea Engineering Solutions Ltd (Ellon) SengS House

Balmacassie Way

Balmacassie Commercial Park Ellon Ellon AB41 8BR

Servomac Ltd (Chesterfield) Meadows Drive

Ireland Industrial Estate Staveley Chesterfield S43 3LH

Shepley Engineers Ltd (Whitehaven) Robinson House

Westlakes Science Park Crow Park Way Whitehaven CA24 3HY

Siemens plc (Energy Fossil Instrumentation and Electrical)

Sir William Siemens House Princess Road Manchester M20 2UR

Siemens plc (Energy Service Fossil) CA Parsons Works Shields Road Newcastle NE6 2YL

Siemens plc (Fossil Power Generation)

Sir William Siemens Square Frimley Camberley GU16 8QD

Siemens Transmission & Distribution Ltd (Hebburn)

2 Koppers Way Monkton Business Park South Hebburn NE31 2EZ

Simkiss Control Systems Ltd (Manchester) Unit 2 Bentley Ave Middleton Manchester M24 2GP

Simon Carves Engineering Ltd (Manchester) Ground Floor

Altitude House Atlas Park Simonsway Manchester M22 5PP

Site Heat Treatment Services Ltd (Port Talbot) Unit 2 Henshaw Street Ind. Estate Port Talbot SA12 6NH

Site Service Engineering Ltd (Scunthorpe) 18 Woodhouse Road Scunthorpe DN16 1BD

Sitek Consultancy Services Ltd (Norwich) 19 Hellesdon Park Road

Hellesdon Park Industrial Estate Norwich NR6 5DR

SMS Group Technical Services (UK) Ltd (Chesterfield)

40-41 The Bridge Beresford Way Chesterfield S41 9FG

Business Centre

SNC-Lavalin UK Ltd (Croydon) Woodcote Grove Ashley Road Epsom KT18 5BW

Sonomatic Limited (Warrington) Dornoch House The Links Birchwood Warrington Warrington WA3 7PB

Specialised Management Services Ltd (Great Yarmouth) Starling House

Lancelot Road

Beacon Park

Gorleston-on-sea Great Yarmouth NR31 7BF

Spie Limited (Stockton -on-Tees) 2nd Floor Advance House

St Mark's Court Stockton On Tees TS17 6QX

Spirac Ltd (Banbury) Spirac House Thorpe Mead Banbury OX16 4AB

SSE Contracting Ltd (Southampton) Castle Malwood Minstead Near Lyndhurst Southampton SO43 7PE

Stall-Mech Engineering Services Ltd (Grimsby)

North Moss Lane Stallingborough Grimsby DN41 8DG

Staptina Engineering Services Ltd (Halifax)

Pennine Works Grantham Road Boothtown HX3 9PL

Starrs Contract Services Ltd (Middlesbrough)

27 Farm Bank Road Ormesby Middlesbrough TS7 9EE

STATS Group Ltd (Kintore) STATS House Tofthills Way Midmill Industrial Estate Kintore AB51 0QG

Steel Work Construction Limited (Preston) Ashley Head Farm Ashley Lane Goosnargh Preston PR3 2EE

Stopford Projects Ltd (Ellesmere Port) Custom House Merseyton Road Ellesmere Port CH65 3AD

Stork Technical Services (RBG) Ltd (Aberdeen) Norfolk House Pitmedden Road Dyce AB21 0DP

Stowen Ltd (Great Yarmouth) Unit 1 Jamess Watt Close Great Yarmouth Great Yarmouth NR31 0NX

Straight Line Services Ltd (Dartford) Chapter House Unit B, Riverside Way Dartford DA1 5BS

Studley Engineering Ltd (Liverpool) 3 Hornhouse Lane Knowsley Industrial Estate Liverpool L33 7YQ

Studsvik Ltd (Preston) Ribble House Meanygate Bamber Bridge Preston PR5 6UP

Subsea 7 (UK Service Company) Ltd (AFGOM) Quadrant House

The Quadrant Sutton Surrey SM2 5AS

Subsea 7 (UK Service Company) Ltd (I-TECH DIVISION) East Campus Tarland Road Westhill Aberdeen AB32 6JZ

Subsea 7 (UK Service Company) Ltd (NSC) East Campus Prospect Road

Arnhall Business Park Aberdeen AB32 6FE

Subsea 7 (UK Service Company) Ltd (PPG) Napier House Erskine Ferry Road

Old Kilpatrick Glasgow G60 5EU

T & A Construction Ltd (Barnsley) The Greyhavens Pinfold Lane Royston Near Barnsley S71 4PQ

Technica Ltd (Grimsby) Cherry Tree Business Park

Pywipe Industrial Estate Off Estate road number 5 Grimsby DN31 2TX

Technical Inspection Services (UK) Ltd (Clevedon) Unit 21 Hither Green Clevedon Clevedon BS21 6XU

Technip E&C Ltd (London) The Pinnacle 170 Midsummer Boulevard Milton Keynes MK9 1BP

Technip UK Ltd (OED) Enterprise Drive Westhill Aberdeen AB32 6TQ

Technip UK Ltd (UK BU) Enterprise Drive Westhill Aberdeen AB32 6TQ

Techno Engineering Ltd (Pembroke Dock) Waterloo Industrial Estate Pembroke Dock SA72 4RR

TEI Ltd (Wakefield) PO Box 80 Calder Vale Road Wakefield WF1 5YS

TesTex NDT Ltd (North Killingholme) Maritime House Lancaster Approach North Killingholme DN40 3JZ

Thyson Technology Ltd (Ellesmere Port) 4, Helix business Park New Bridge Road Ellesmere Port CH65 4LX

ThyssenKrupp Industrial Solutions Oil and Gas Ltd (Port Talbot) 3rd Floor Friars Gate

Stratford Road Shirley B90 4BN

Turbo Machinery Services Ltd (Bedford) 4a Aston Road Cambridge Road Industrial Estate Bedford MK43 0LJ

Ultramag Inspection Services Ltd (Southampton) Unit 4V

Central Crescent Marchwood Industrial Park Southampton SO40 4BJ

Unit Engineers & Constructors Ltd (Swansea) Unit House

Baldwins Crescent Crymlyn Burrows Swansea SA1 8QE

Vogal Group Ltd (Peterborough) Vogal Group Ltd

11 Flaxley Road Kingston Park Peterborough PE2 9EN

Vulcain Engineering Ltd (Stonehouse) Unit 601 Stonehouse Park Sperry Way Stonehouse GL10 3UT

VWS (UK) Ltd (High Wycombe) Windsor Court Kingsmead Business Park High Wycombe HP11 1JU

VWS Westgarth Ltd (Glasgow) Orbital House 3 Redwood Crescent East Kilbride G74 5PR

W M Codd Ltd (Barton-Upon-Humber) Beck Hill Barton-on-Humber DN18 5HG

Walker Engineering (NW) Ltd (Skelmersdale) Units 27-31 Pit Hey Place Pimbo Skelmersdale WN8 9PS

Weir P.S.L International Ltd (Bellshill)

Weir Flow Control + Weir Oil & Gas 20 Waterlook Street (4th Floor) Glasgow G2 6DB

Westwell Developments Ltd (Rochester) Whitewall Road Frindsbury Rochester ME2 4DZ

Whessoe Engineering Ltd (Darlington)

Whessoe Technology Centre Morton Palms Darlington DL1 4WB

Whitland Engineering Ltd (Whitland) Unit B West Street Whitland SA34 0AE

Wisbech Electrical Ltd (Wisbech) Bannisters Row Wisbech PE13 3HZ

Wood Group UK Ltd (Aberdeen) Sir Ian Wood House

Hareness Road Altens Industrial Estate Aberdeen AB12 3LE

Wood Group UK Ltd (OMS) Sovereign House

Craven Street South Hedon Road Kingston upon Hull HU9 1AP

Worley Europe Ltd (Brentford) 27 Great West Road Brentford TW8 9BW

Worleyparsons Services UK Ltd (Aberdeen) Annan House Palmerston Road Aberdeen AB11 5QP

Worleyparsons Services UK Ltd (Great Yarmouth) Edison Way Gapton Hall Industrial Estate Great Yarmouth NR31 0NG

Wright Brothers Industrial Services Ltd (Worksop) Carlton Forest Red Lane Blyth Road Worksop S81 8BP

WSP CEL Ltd (Birmingham) The Mailbox Level 2 100 Wharfside Street Birmingham B1 1RT

WSP UK Ltd (Energy) Amber Court William Armstrong Drive Newcastle Upon Tyne NE4 7YQ

Xodus Group Ltd (London) Cheapside House 138 Cheapside London EC2V 6BJ