Company Index
- S Carden Systems Ltd. - Leigh
- S P Barrett Ltd. - Boston
- S & G Cables Co Ltd - Durham
- S & H Systems Design & Installation Ltd. - Cannock
- S & J Juniper & Co. - Harlow
- S & S Electronics - Sheffield
- S 1 Systems - Stroud
- S A C Electronics Ltd. - Derby
- S and J Precision Ltd - Leicester
- S and M Services - Braintree
- S and S Systems Ltd - Sheffield
- S C V Electronics Ltd. - Loughton
- S D Products Ltd. - Mansfield
- S D A Electronics Ltd. - Salford
- S D A (Magnetics) Ltd. - Salford
- S E C Industrial Battery Co. Ltd. - Iver
- S E Lux Lighting Ltd. - Leamington Spa
- S E W-Eurodrive - Stirling
- S G Magnets Ltd. - Rainham
- S H M Communications Ltd. - Winchester
- S I Consultants - Bury St Edmunds
- S J Electronics Ltd. - Kettering
- S J Electrical - Hull
- S J Technologie Ltd - Kettering
- S K Electronics Ltd. - Oldham
- S L E Ltd. - South Croydon
- S L Electrotech Ltd. - Newcastle
- S Lilley & Son Holdings Ltd. - Birmingham
- S M C Electronics Ltd. - Reading
- S M L Ltd. - Barnet
- S M P Electronics - Woking
- S P Wound Components Ltd. - Poole
- S T L Stewart Transformers Ltd. - London
- S2S Electronics Ltd - Huddersfield
- Sabre Advanced Micro Electronics Ltd. - Guildford
- Sabre Controls Ltd - Bexhill on Sea
- Sabrebanner Ltd - Bradford
- Saeco Ltd. - Watford
- Saetech Ltd - Hungerford
- Safe & Sound - Wigan
- Safe & Sound Alarms - Manchester
- Safe & Sound Ltd. - Mansfield
- Safe and Sound Management Consultants Ltd - Bletchley
- Safe Communications Ltd - Brighton
- Safe-Link Services Ltd - London
- Safel - Thirsk
- Safetell Ltd - Dartford
- Safetest Ltd - Bournemouth
- Safety Lighting Systems Ltd - Chelmsford
- Safety Power Group Ltd. - Farnborough
- Saffron - Hove
- Saffron Electronics Ltd - Stafford
- SAFT Ltd - Harlow
- Saft Ltd. - South Shields
- Saftronics Ltd - Leeds
- Sagemaster Cases Ltd. - Tunbridge Wells
- Sailes Marketing Ltd. - Pershore
- Saint-Gobain Quartz Ltd. - Wallsend
- SAL Pharma (Division of Ascot Autoclaves Ltd) - Wokingham
- Salem Automation Ltd. - Rotherham
- Salient Electronics - Grimsby
- Salton Europe Ltd. - Manchester
- Samms Electronics - Sandy
- Samsons (Transformers) Ltd - Twickenham
- Samsung Electronics (UK) Ltd - Chertsey
- Samtec (Europe) Ltd. - Glasgow
- Samtech Ltd - Glasgow
- Samuel Taylor Ltd. - Redditch
- Samwha Electric UK - Richmond
- Sandal Plc - Harlow
- Sanders Electronics Ltd - Tring
- Sanderson Support Ltd - Coventry
- Sandford Electrical Services Ltd. - Slough
- Sandpiper Aerial Technology Ltd. - Aberdare
- Sangamo Ltd - Port Glasgow
- Sanken Power Systems (UK) Ltd - Bridgend
- Santec Europe Ltd. - Oxford
- Santon SwitchGear Ltd - Newport (Gwent)
- Santronics - Workington
- Sanyo Component Europe GmBh - Walton on Thames
- Sanyo Component Europe GmbH - Watford
- Sanyo Industries (U K ) Ltd. - Lowestoft
- Sapa Profiles Ltd. - Alfreton
- Sapphire Research and Electronics Ltd - Ferndale
- Sarabec Ltd. - Middlesbrough
- Sarbin Solutions Ltd - Caldicot
- Sarel Ltd - Swindon
- Sargent Electrical Services Ltd. - Beverley
- Sarian Systems Ltd. - Ilkley
- Saros Technology Ltd. - Wallingford
- Sarsen Technology Ltd - Marlborough
- Sascal Displays Ltd - Hayes
- Sato UK Ltd - Harwich
- Saturn Solutions Ltd - Folkestone
- Saturn Solutions Ltd - Southampton
- Saul Research - Towcester
- Saunders Electronics Ltd - Hinckley
- Sauter Automation Ltd. - Basingstoke
- Saxon Embedded Solutions Ltd. - Bradford
- Sbk Computers Ltd. - Chesterfield
- SCA Packaging Industrial - Darlington
- SCA Packaging Ltd - Aylesford
- Scame U K Ltd. - Tewkesbury
- Scan Alarms & Security Systems (U K ) Ltd. - Newtownabbey
- Scan Logic Ltd. - Walsall
- Scan Optics Ltd. - Watford
- Scanivalve Corp - Bath
- Scanlite Visual Communications Ltd - Blackpool
- Scanna MSC Ltd - London
- Scanning Resources Ltd. - Harpenden
- Scantron Industrial Products Ltd - Taunton
- Scaringbirds com Ltd - Ludlow
- SCH Services Ltd - Barnsley
- Schaffner Ltd. - Wokingham
- Schenck Ltd - Warwick
- Schloetter Co. Ltd. - Pershore
- Schmitt Europe Ltd - Coventry
- Schneider Electric (Merlin Gerin) - Telford
- Schneider Electric Ltd - Chippenham
- Schneider Electrics - Coventry
- Schott Industrial Glass Ltd - Newton Aycliffe
- Schott UK Ltd - Stafford
- Schrack Components Ltd - Stanmore
- Schroff (UK) Ltd - Hemel Hempstead
- Schunk U K Ltd. - Pudsey
Schurter Ltd - Bognor Regis- Sci-Lab Analytical Ltd. - Chester
- Scientific Atlanta Europe Inc - Reading
- Scientific Computers Ltd. - Crawley
- Scientific Electro Systems Ltd. - Rochford
- Scientific Glass Blowing Co. Ltd. - Oldham
- Scientific Management Associates (U K) Ltd. - Andover
- Scientific Services Derby Ltd - Derby
- Scientific Vacuum Systems Ltd. - Wokingham
- Scientific Wire Co - London
- Scientifica Ltd. - Uckfield
- Scientifica-Cook Ltd. - London
- Scimar Engineering Ltd - Exeter
- Scitec Instruments Ltd - Redruth
- Scitsu com - Sheffield
- Scomagg Ltd - Aberdeen
- Scorpion Group - Gloucester
- Scorpion Oceanics Ltd - Saffron Walden
- Scotaudio - Stirling
- Scotcomms Mobile Radio - Edinburgh
- Scotfax - Edinburgh
- ScotGold Products - Aberdeen
- Scotia Electronics - Dunfermline
- Scotia Energy Saving Systems Ltd. - Glenrothes
- Scotland Electronics (International) Ltd - Forres
- Scotscraig Controls - Auchterarder
- Scott Electromech - Belfast
- Scottish Electric Ltd. - Dundee
- Scottish Enterprise - Glasgow
- Scottish Enterprise Forth Valley - Stirling
- Scottish Enterprise Lanarkshire - Bellshill
- Scottish Enterprise Renfrewshire - Paisley
- Scottish Telecommunications plc - Glasgow
- Screen Subtitling Systems Ltd - Ipswich
- Screencraft Ltd - London
- SDA Ltd - Windsor
- SDC Industries Ltd - East Kilbride
- SDF Electronics Ltd - Rossendale
- SDN CCTV - Selby
- Sea Holdings Ltd. - York
- Seagate Technology (Ireland) - Londonderry
- Sealparts Ltd. - Dudley
- Searchlight Electrics Ltd - Manchester
- Searle Manufacturing Co - Fareham
- Seatronics Ltd. - Aberdeen
- Seaward Electronic Ltd - Peterlee
- Seawing Landguard International Ltd. - Felixstowe
- Seba Kmt UK Ltd - Calne
- Sebserv Ltd. - Edgware
- Seca Ltd. - Birmingham
- Secomak Ltd - Edgware
- Secure Engineering Ltd - Maidstone
- Secure It All - Halesowen
- Secure Options Group Ltd. - Oldham
- Secure Retail Ltd - Coalville
- Secure Systems & Technologies Ltd. - Gloucester
- Securikey Ltd. - Aldershot
- Security and Control Scotland - Glasgow
- Security Consultancy & Technical Ltd. - Croydon
- Securityonline - Northampton
- Sedgewall Communications Group Ltd - Dunstable
- Seetrax Cae Ltd - Ringwood
- SEG Protection Relays - Maidenhead
- Seho UK Ltd - Manchester
- Seiko U.K. Ltd - Maidenhead
- Sekisui (UK) Ltd - Merthyr Tydfil
- Select Cables Ltd. - Portsmouth
- Select Enclosures Ltd - Cheltenham
- Selectronic Ltd. - Witney
- Selectronix Ltd - Aldermaston
- Selenia Communications Ltd, Secure Systems Division - Liverpool
- Selex Communications Ltd. - Basildon
- Sellec (Special Cables) Ltd. - Worksop
- Sellotape G B Ltd - Dunstable
- Seltec Automation - Hull
- Selwyn Electronics Ltd - Sevenoaks
- Sematron U K Ltd. - Basingstoke
- Seme Ltd - Melton Mowbray
- Semefab (Scotland) Ltd. - Glenrothes
- Semelab plc - Lutterworth
- Semi-Dice UK - Princes Risborough
- Semicon Services - Kingsbridge
- Semiconductor Supplies International Ltd. - Sutton
- Semikron Ltd - Hertford
- Semitest - Fairford
- Semtech Ltd. - Romsey
- Senate Electrical Wholesalers Ltd - Rosyth
- Sencon (UK) Ltd - Worcester
- Senju Manufacturing (Europe) Ltd. - High Wycombe
- Sens-Tech Ltd - Ruislip
- Sensa A Schlumberger Company - Southampton
- Sensatech Research Ltd. - Brighton
- Sensemaster Ltd - Caldicot
- Sensing Devices Ltd. - Southport
- Sensitised Coatings Ltd - Kings Lynn
- Sensonics Ltd - Berkhamsted
- Sensopad Ltd - Cambridge
- Sensor-Technik UK Ltd - Bedford
- Sensorbility Ltd - Salcombe
- Sensorcom Ltd - Beckenham
- Sensors U K Ltd. - St Albans
- Sensorsone Ltd. - Oakham
- Sensortechnics UK - Rugby
- Sensortek Ltd - Bury St Edmunds
- Sensortrol Ltd. - Sheffield
- Sensortronic Ltd - Henley on Thames
- Seos Ltd. - Burgess Hill
- Sepro Robotique Ltd. - Milton Keynes
- Sequoia Technology Ltd. - Reading
- Seratel Ltd - Westport
- Sercal Electronics Ltd - Doncaster
- Sercal Non Destructive Test Equipment Ltd - Cannock
- Serck Controls Ltd. - Coventry
- Serco Geografix Ltd. - Norwich
- Serco Ltd. - Waterlooville
- Sericol Ltd - Broadstairs
- Series 4 Ltd - Southampton
- Serpac Enclosures Ltd - Fareham
- Service Logic Ltd. - St Albans
- Service Systems Ltd. - Newcastle
- Servicecal Ltd. - Manchester
- Servicepower Ltd - Shipley
- ServiceTec Ltd - Stevenage
- Serviscomm Ltd - Darlington
- Servitech International Ltd. - Bedford
- Servo Connectors (a division of Servo and Electronic Sales Ltd) - Romney Marsh
- SES-Sterling Ltd - Telford
- Setech Solutions Ltd - Northampton
- Setsquare Ltd. - Tonbridge
- Seven-Peas.co.uk Ltd - Chippenham
- Severn Controls Ltd - Gloucester
- Severn Electric Co Ltd - Stourport on Severn
- Severn Sales - Bristol
- Severn Trent Water Ltd. - Birmingham
- Seyco (Electronics) Ltd. - London
- Sfw Ltd. - Woking
- Sgs Overseas Holdings Ltd - Camberley
- Shane Consultants Ltd. - Wokingham
- Shanoc Electronic Systems Ltd - Stevenage
- Shareteq Ltd - Spalding
- Sharp Laboratories of Europe Ltd. - Oxford
- Sharp Manufacturing Co of Uk - Wrexham
- Sharples Stress Engineers Ltd. - Preston
- Sharpmark Solutions LLP - Milton Keynes
- Shaw Electronic Development Co - Accrington
- Shaw Moisture Meters (U K ) Ltd. - Bradford
- Shaw Power Limited - Blackburn
- Shawcity Ltd - Faringdon
- Shawtech Ltd. - Manningtree
- Shepherd Charles Ltd - Wokingham
- Sherborne Sensors Ltd - Basingstoke
- Sherborne Technical Services Ltd. - London
- Sheriff Technology Ltd. - Royston
- Sherwood Electronics Ltd - Long Eaton
- Shielding Solutions Ltd - Braintree
- Shindengen (U K) Ltd. - Welwyn Garden City
- Shire Consulting Engineers - Bromsgrove
- Shire Controls Ltd. - Harlow
- Shootview Ltd - Sunbury on Thames
- Short Run Press Ltd. - Exeter
- Shout Telecoms Ltd - Waterlooville
- Showtec Lighting and Sound - Shoreham by Sea
- ShP Solutions - Lancaster
- Shrink Polymer Systems - Rushden
- Shrink Sleeve Ltd - Sevenoaks
- Shrinkfast Ltd. - Swindon
- Shrinktek Polymers International Ltd - Cheltenham
- Shunts Direct Ltd - Staines
- Si Plan Electronics Ltd. - Coventry
- SI Plan Electronics Research Ltd - Stratford upon Avon
- Siam Control and Automation - Bromsgrove
- SIC Ltd - Manufacturing Excellence - Swansea
- Sicame Electrical Developments Ltd. - Huddersfield
- SICK (UK) Ltd - St Albans
- Siegrist-Orel Ltd. - Broadstairs
- SIEL UPS Systems Ltd - Dursley
- Siemens Automation and Drives - Manchester
- Siemens Building Technologies (Fire Protection) - Camberley
- Siemens Business Services Media Ltd - Bracknell
- Siemens Communication Systems - Milton Keynes
- Siemens Magnet Technology Ltd. - Witney
- Siemens Power Generation - Newcastle upon Tyne
- Siemens Power Transmission & Distribution Systems - Manchester
- Siemens Shared Services - Bracknell
- Sierra Integrated Systems Ltd - Yeovil
- SIGA (Electronics) Ltd - Sandy
- Sight Systems Ltd - Worthing
- Sigma Marketing - Plymouth
- Sigmaprint Technologies Ltd. - Weymouth
- Sign Services (UK) Ltd - Hull
- Signal Group Ltd - Camberley
- Signal House Ltd. - Leighton Buzzard
- Signals UK - Birmingham
- Signatrol Ltd. - Tewkesbury
- Signature Industries Ltd - London
- Signature Ltd. - Oldbury
- Signet (A C) Ltd. - Washington
- Signex Uk Ltd. - Bournemouth
- SIGNO Communication Electronics - Bedford
- Signpost Identity - Rowley Regis
- Siko Ltd. - Thirsk
- Silent Power Systems Ltd - Stoke on Trent
- Silicon 8 Ltd - Sevenoaks
- Silicon Glen Technology Ltd. - Glasgow
- Silicon Microsystems Ltd - Malmesbury
- Silicone Engineering Ltd - Blackburn
- Silicone Fabrication Services Ltd - Luton
- Silva Ltd. - Livingston
- Silvabronz - Alton
- Silver Telecom - Newport (Gwent)
- Silvertronic Ltd - Enfield
- Simac Masic - Dundee
- Simbal Ltd. - High Peak
- Simclar International Ltd. - Dunfermline
- Simetrix Technologies Ltd. - Thatcham
- Simms Electrical Distributors Ltd. - Halifax
- Simong Ltd. - Birmingham
- Simorg Ltd. - Luton
- Simple Technology U K Ltd. - Warrington
- Simplicity AI Ltd - Farnborough
- Simpson Donald and Co - Denny
- Simpson Thomson Filtration - Stockport
- Simtech Simulation Techniques Ltd. - Aylesbury
- Simtek EMS Ltd - Margate
- Simulation Systems Ltd - Bristol
- Simutech Electronics - Hull
- Sinclair Voicenet Ltd. - Glasgow
- Sinelco Controlgear - Glasgow
- Singapore Economic Development Board - London
- Singlerapid Ltd. - Egham
- Sinolec Components Ltd - Guildford
- Sionics Ltd - Newmarket
- Sipex Corporation - Alton
- Sirus Microtech Ltd. - Wellington
- SIS (Engineers) Ltd - Manchester
- SISD ltd - Stevenage
- Siteguard UK Ltd - Ellesmere Port
- SiTEST Ltd - Wimborne
- SJM Eurostat (UK) Ltd - Stockport
- SKF Condition Monitoring Centre (Livingston) Ltd - Livingston
- Skilcom Ltd - Thatcham
- Skill Electronics Ltd - Birmingham
- SKN Electronics - Birmingham
- Skot Transformers Ltd - Malvern
- Skye Instruments Ltd. - Llandrindod Wells
- Skylark Energy Systems Ltd. - Banchory
- Skymasts Antennas Ltd. - Northampton
- Skyquest Ltd t/a Skyquest Aviation - Maidenhead
- Skytronic Ltd. - Manchester
- SL Power Electronics - South Molton
- Slater Plastics - Witney
- Slaters Electricals Ltd - Blaydon on Tyne
- SLB Electrical - Aldershot
- Slencrest Ltd - Maidstone
- Sloan Electronics Ltd. - Gateshead
- Sm Group (Europe) Ltd. - Plymouth
- Smail Engineers (Glasgow) Ltd. - Glasgow
- Small Battery Co. Ltd. - London
- Small E Consulting Ltd. - Hull
- Smallpeice Enterprises Ltd. - Leamington Spa
- Smart CCTV Ltd - Havant
- Smart Communications - Borehamwood
- Smart Pos Solutions Ltd. - Barnsley
- Smart Systems - Leicester
- Smart Thermal Solutions Ltd - Manchester
- Smart-E (U K) Ltd - Dorking
- Smartdrive Ltd - Huntingdon
- Smartpat Ltd - Manchester
- Smartscan Ltd - Corby
- Smatex Ltd - Salford
- SMC Pneumatics (UK) Ltd - Milton Keynes
- Smerdon & Jones Ltd. - Plymouth
- Smith Jones Communications Ltd - Brackley
- Smith Myers Communications Ltd - Biggleswade
- Smith's Environmental Fan Coils Ltd. - Chelmsford
- Smithbrook Ltd - Cranleigh
- Smiths Detection - Watford
- Smiths Wolverhampton Ltd - Wolverhampton
- SMK (UK) Ltd - Newton Aycliffe
- Smr Electronics Ltd. - Chippenham
- SMS Electronics Ltd - Beeston
- SMT Developments - Warwick
- Smye Holland Associates Ltd. - Peterborough
- Snaar Ltd Electronics Design - Newbury
- Snaefell Aviation Design - Ryde
- Snap-on U K Holdings Ltd. - Kettering
- Snelflight Ltd - Waterlooville
- Snell and Wilcox Ltd - Havant
- Snell and Wilcox Ltd - Liss
- Snell and Wilcox Ltd - Twickenham
Socomec UPS - Cirencester- Soft Edge Technologies Ltd. - Glasgow
- Softel Ltd. - Reading
- Software Radio Technology plc - Bath
- Soil Instruments Ltd. - Uckfield
- Solar Communications Ltd. - Bristol
- Solarsoft Leicester - Leicester
- Solartron Analytical - Farnborough
- Solartron Metrology Ltd - Bognor Regis
- Solbraze Ltd - Erith
- Solder School Technology - Glenrothes
- Solderstar Ltd - Rochdale
- Solectron Ltd - Fareham
- Solid Developments - Hastings
- Solid Solutions Management Ltd. - Warwick
- Solid State Plc - Tonbridge
- Solid State Sound - Shaftesbury
- Sollatek Distribution Ltd - Slough
- Sollatek(U K ) Ltd. - Slough
- Sollerta Ltd - Dorchester
- Soloheat - Stroud
- Solus Solutions Ltd - Glasgow
- Solutech Electronics - Leicester
- Solutions Audio Visual Ltd. - Langport
- Solutionz-Direct Com Ltd - Gateshead
- Somerco Industrial Ltd - Cumbernauld
- Somerdata Ltd - Wells
- Sonar & Communication Systems - Greenford
- Sonar Research & Development Ltd. - Beverley
- Sonart Electronics Ltd - Dunfermline
- Sonavision Ltd. - Aberdeen
- Sondia Lighting Ltd. - Hull
- Sonic Communications (International) Ltd. - Birmingham
- Sonifex Ltd. - Wellingborough
- Sonix - Cwmbran
- Sono UK Ltd - Swindon
- Sontay - Edenbridge
- Sontec (Electronics) Ltd. - Norwich
- Sony Manufacturing Co UK Ltd - Bridgend
- Sony Visual Systems Division - Bridgend
- SOR Europe Ltd - Horsham
- Sorion Electronics Ltd - Edgbaston
- SouMac Assembly Services Ltd - Portsmouth
- Sound & Visual Services Ltd - Surbiton
- Sound Broadcast Services - Alcester
- Sound Dynamics Ltd. - Belper
- Sound Induction Systems Ltd - Newtown
- Sound Leisure Ltd. - Leeds
- Sound Technology Ltd. - Letchworth
- Soundcraft - Potters Bar
- Sounds Incorporated - Knottingley
- South Eastern Auto Electrical Services Ltd. - Maidstone
- South Esk Electronics Ltd. - Brechin
- South Midlands Communications Ltd - Chandlers Ford
- South West Battery Systems - Stroud
- South West Communications Group Ltd - Exeter
- South West Instrumentation - Devizes
- South West Metal Finishing Ltd. - Exeter
- South Woodford Electronics Ltd. - Bishops Stortford
- South Yorkshire Battery Services - Sheffield
- Southdown Circuits Ltd. - Arundel
- Southern Calibration Laboratories Ltd - Southampton
- Southern Care Maintenance - Tonbridge
- Southern Electronics - North Shields
- Southern Scientific Ltd. - Lancing
- Southoe Comtech Ltd - St Neots
- Southworth Handling Ltd - Thatcham
- Souvenir (Cranwell) Ltd. - Grantham
- Sovella - Horsham
- Sovereign Rotating Machines Ltd. - Bognor Regis
- SP Electronics - Preston
- Space Airconditioning plc - Guildford
- Space Electronics Ltd - Stratford upon Avon
- SpaceBreeze (EU) Ltd - Poole
- Sparc Systems Ltd. - Malvern
- Sparex Ltd. - Exeter
- Sparks Electrical Wholesalers Ltd. - London
- Sparks Laser Services Ltd. - Basildon
- Speake and Co Llanfapley - Abergavenny
- Speakerbus Ltd - Hoddesdon
- Special Application Products Ltd - Ipswich
- Specialised Video Services - Poole
- Specialist Alarm Services Ltd - Newcastle upon Tyne
- Specialist Battery Services 2000 Ltd. - Nottingham
- Specialist Computer Centres plc - Birmingham
- Specialist Electronics Services Ltd - Camberley
- Specialist Heavy Engineers Ltd - Newport (Gwent)
- Specialist Microwave Solutions Ltd - Cranfield
- Specialist Power Systems Ltd - Bedford
- Specialist Tools & Equipment - Telford
- Specialty Coating Systems - Woking
- Specialty Electric Motors Ltd. - Lancing
- Spectech Ltd - Alton
- Spectra Displays Ltd - Cambridge
- Spectra Strip Ltd. - Romsey
- Spectraglass Ltd. - Perth
- Spectral Dynamics (UK) Ltd - Welwyn Garden City
- Spectral Ltd. - Worthing
- Spectre (Communications) Ltd - Coalville
- Spectro Analytical (U K) Ltd - Halesowen
- Spectrogon U K Ltd. - Glenrothes
- Spectronic Analytical Instruments - Leeds
- Spectrum Communications - Dorchester
- Speedboard Assembly Services Ltd - Windsor
- Speedy Cables Ltd - Hertford
- Speirs Robertson & Co. Ltd. - London
- Spellman High Voltage Electronics Ltd - Pulborough
- Spemco Teo - Donegal
- Spendor Audio Systems Ltd. - Hailsham
- Sphere 2000 Ltd. - London
- Spiers Electronics - Verwood
- Spirent Communications (Scotland) Ltd. - Glasgow
- Spirent Communications (Sw) Ltd. - Paignton
- Spirit Circuits Ltd - Waterlooville
- Spooner Industries Ltd - Ilkley
- SPQR Europe Ltd - Huntingdon
- Sprint Electric Ltd. - Arundel
- Sprint Ltd T/A SCS - Hove
- Spur Electron Ltd - Havant
- Spursmore Design Ltd - Exeter
- SPW Traffic Control Ltd - Stoke on Trent
- SQN Electronics Ltd - Ballasalla
- Squarezone Ltd. - Farnborough
- Src Systems Ltd. - Ipswich
- Srs Automation Ltd. - Congleton
- SRS Products plc - Harlow
- Srs Telecom Ltd - Dunfermline
- SSDC Ltd - Basingstoke
- SSS Alarms & CCTV - Buckley
- SST Sensing Ltd - Bellshill
- St Albans Meter Co Ltd - St Albans
- ST Electronics Ltd - Theale
- St. Cross Electronics Ltd - Southampton
- Stabilised Transformers Ltd - Wolverhampton
- Stable Micro Systems - Godalming
- Stack Ltd - Bicester
- Stadium Consumer Products Ltd. - Hartlepool
- Stadium Electronics - Hartlepool
- Stadium Power - Diss
- Staeng Ltd - Truro
- Stafford Aero Technologies Ltd - Norwich
- Stag Instruments Ltd - London
- Stage Control Ltd - Edgware
- Stage Electrics - Birmingham
- Stage Electrics - Exeter
- Stage Electrics - London
- Stage Electrics - Newcastle upon Tyne
- Stage Electrics Partnership Ltd - Bristol
- Stamar Electronic Services - Lincoln
- Standard Signs & Traffic Systems Ltd. - Newport
- Standel Dawman Holdings Ltd. - Nelson
- Standex Electronics (UK) Ltd - Tonbridge
- Stanford Battery Service - London
- Stanford Components Ltd - Stanford le Hope
- Stanford West Associates - Reading
- Stanghal Computing Ltd - Newcastle upon Tyne
- Stanler Components Ltd. - Colchester
- Stanley Security Solutions Ltd. - Swindon
- Stanmatic Precision (U K) Ltd. - Feltham
- Stantec - Sevenoaks
- Staplethorne Ltd - Honiton
- Star Computers Ltd - Sutton Coldfield
- Star Instruments Ltd - Royston
- Star Micronics Europe Ltd - High Wycombe
- Starkey Laboratories Ltd. - Stockport
- Starlec Ltd. - Hemel Hempstead
- Starmount Ltd - Nelson
- Starna Ltd. - Romford
- Starpoint Adaptive Optics Ltd - Durham
- Startec Services - Eastbourne
- Static Control Components (Europe) Ltd. - Reading
- Static Ltd. - Auchterarder
- Static Safe Environments - Stourbridge
- Static Scotland Ltd. - Inverkeithing
- Static Systems Group Plc - Wolverhampton
- Station Z Media Production Services - Rye
- Statron (UK) Ltd - Corby
- Status Instruments Ltd - Tewkesbury
- Staubli UK Ltd - Telford
- Steadlands International Marketing Ltd - Blyth
- Steatite Ltd - Redditch
- Steels Engineering Services Ltd. - Billingham
- Steepletone Products Ltd. - Brackley
- Steinel U K Ltd. - Peterborough
- Stellar Controls Ltd. - St Neots
- Stemmer Imaging - Farnham
- Stentofon - Zenitel UK - Crawley
- Step Enterprise Ltd - Nottingham
- Stephen Glover & Co. Ltd. - Luton
- Stephen P Wales - Torquay
- Stephenson Control Systems Ltd. - Harrogate
- Stephenson Research Ltd - Gateshead
- Steradian Ltd - Newton Abbot
- Steve Kerner Ltd. - High Wycombe
- Steven H Brown - Loughton
- Steven Peters Ltd - Royston
- Stevenage Circuits Ltd. - Stevenage
- Stewart & Allen Ltd. - Cheltenham
- Stewart Malcolm N - Windsor
- Stewart Technology Ltd. - Galashiels
- Stirling Technology - Birmingham
- STL Transtech Ltd - Leicester
- Stmicroelectronics - Bristol
- Stmicroelectronics Ltd. - Marlow
- Stock Electronics Ltd. - Salisbury
- Stock On Line - Barnstaple
- Stockall Electronics Ltd. - Malvern
- Stocksigns Ltd - Redhill
- Stocom Ltd - Crewe
- Stokvis Tapes (U K) Ltd. - Tring
- Stonefield Systems (Europe) Ltd - Haywards Heath
- Stonegate Instruments Ltd - Leeds
- Stoneridge Electronics - Dundee
- Stonewood Electronics Ltd - Wareham
- Stontronics Ltd - Reading
- Stop-Choc Ltd. - Slough
- Storage Products (SPS) Ltd - Stirling
- Storm Interface - West Drayton
- Storm Power - Rhyl
- Storm Products - East Kilbride
- Stormcut Ltd - York
- Stortech Electronics Ltd. - Harlow
- Stotron - Scunthorpe
- Straight Plc - Leeds
- Strain Gauging Co Ltd, The - Alresford
- Strain Measurement Devices Ltd. - Bury St Edmunds
- Strainstall UK Ltd - Cowes
- Strategic Sales Solutions Ltd - Thatcham
- Strategix Software Plc - Bourne End
- Stratford Tools Ltd - Buckingham
- Stratos Ltd. - Haverhill
- Stratton Technologies Ltd. - Biggleswade
- Strayfield Ltd - Reading
- Streetly Electronics - Rugeley
- Strikalite Batteries - Burntwood
- Stroud Instruments Ltd. - Stroud
- Stryke International - High Wycombe
- Sts Signals Ltd. - Wimborne
- Sts Switchgear Ltd. - Cradley Heath
- Stuart (Photronics) Ltd. - Manchester
- Stuart James Systems Ltd - Lichfield
- Studio 2 on Line Ltd. - Leicester
- Studio Systems Electronics Ltd. - Fleet
- Studweldpro - U K Ltd. - Newark
- Stylebord Ltd. - Cambridge
- Styropack (UK) Ltd - Aberdeen
- Sub Assembly Services Ltd - Tewkesbury
- Sub Contract Services - Letchworth
- Suffolk Automation Ltd. - Ipswich
- Sumitomo Electric Shrink Products - Swindon
- Sumitomo Electric Wire Products - SEI Interconnect Products Ltd - Swansea
- Sumlock Electronics Ltd - Newcastle upon Tyne
- Summit Solder Products - Biggleswade
- Sumo Technologies Ltd. - York
- Sun Microsystems Ltd. - Camberley
- Sun Microsystems Scotland Lp - Linlithgow
- Suna Supplies Ltd. - Surbiton
- Sunalex Ltd - Aylesbury
- Sunbridge Electrical Wholesalers Ltd - Bradford
- Sunpower (UK) Ltd - Aldermaston
- Sunvic Controls Ltd. - Glasgow
- Supac Ltd - Merthyr Tydfil
- Superchips Ltd. - Buckingham
- SuperGPS - Altrincham
- Superior Systems - Coventry
- Superspares - London
- Supplyline Auto ID - Horsham
- Suppression Devices - Clitheroe
- Sure24 Ltd - Nottingham
- SureScreen Diagnostics Ltd - Derby
- Surface Mount & Related Technologies Ltd. - High Wycombe
- Surface Mount Electronics Ltd. - Worthing
- Surface Mount Technology - Cowes
- Surface Technology International Ltd. - Hook
- Surface Technology Systems plc (STS) - Newport (Gwent)
- Surgebuster Ltd - Bideford
- Surgecam Ltd - Seaham
- Surgetech Ltd. - Emsworth
- Surtech Distribution Ltd - Andover
- Suss Microtec Ltd. - Wokingham
- Sussex Assemblies Ltd - Porslade
- Sutronics - Swanage
- Swagelok Bristol - Avonmouth
- Swale Components Ltd. - Whitstable
- Swan Computer Brokers Ltd. - Dartford
- Swan EMS Ltd - Abertillery
- Swan Generators Ltd. - Banbury
- Sweco Europe UK Division - Stoke on Trent
- Swift Automation and Control Systems Ltd - Carlisle
- Swift Circuits Ltd. - Llanelli
- Swindon Silicon Systems Ltd - Swindon
- Swiss Mimicco - Chertsey
- Swiss Travel Products UK - Harrogate
- SWITCH2 Energy Solutions Ltd. - Bradford
- Switchcom (U K ) Ltd. - Wimborne
- Switchcraft Inc - Portsmouth
- Switchcraft Technology Ltd - Southampton
- Switched Mode Ltd. - Reading
- Switchgear & Instrumentation Ltd. - Bradford
- Switchgear Spares and Accessories - Sutton in Ashfield
- Switching Components - East Grinstead
- Switchtec Ltd. - Stone
- Sy Electronics Ltd. - Salford
- Sycopel Scientific Ltd. - Washington
- Sycos (U K ) Ltd. - Dunstable
- Syfer Technology Ltd. - Norwich
- Sygnus Data Communications Ltd - High Wycombe
- Sykes Pickavant Ltd - Cannock
- Symbia Ltd. - London
- Symicron Computer Communications Ltd. - London
- Synapsys Solutions Ltd - Burgess Hill
- Synatel Instrumentation Ltd - Cannock
- Synectic Design Ltd - Bolton
- Synectic Systems Ltd. - Sheffield
- Synectics Industrial Systems Ltd - Brigg
- Synectix Ltd. - Cheltenham
- Synergie-Cad (UK) Ltd - Lincoln
- Synergy Resourcing International Ltd. - West Byfleet
- Synopsys (Northern Europe) Ltd. - Reading
- Synoptics Ltd. - Cambridge
- Syntech Technologies - Paignton
- Syntegra Ltd - Sunbury on Thames
- Sysmedia Ltd. - Horley
- Systech Controls Ltd - Stafford
- Systech Instruments - Thame
- Systegration Ltd - Littlehampton
- System Connections - Cambridge
- System Control Solution Ltd - Lowestoft
- System Group - Carlisle
- Systematics Printed Circuits Ltd. - Eastleigh
- Systemation Euro Ltd - Northampton
- Systemation Software Ltd - Ferndown
- Systems Power Engineering Ltd - Abercarn
- Systems Technology (S E ) Ltd. - Rochester
