Electronics Company Index - S
- S Carden Systems Ltd. - Leigh
- S & H Systems Design & Installation Ltd. - Cannock
- S & J Juniper & Co. - Harlow
- S & S Electronics - Sheffield
- S 1 Systems - Stroud
- S and M Services - Braintree
- 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 W-Eurodrive - Stirling
- S G Magnets Ltd. - Rainham
- S H M Communications Ltd. - Winchester
- S I Consultants - Bury St Edmunds
- S I Test Ltd. - Wimborne
- S J Electronics Ltd. - Kettering
- S J Technologie Ltd - Kettering
- 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
- S2S Lifecycle Services - Sheffield
- Sabre Advanced Micro Electronics Ltd. - Guildford
- Sabre Controls Ltd. - Preston
- Sabrebanner Ltd - Bradford
- SAC Electronics Ltd - Sutton in Ashfield
- Sae-Tech Ltd. - Hungerford
- Safe & Sound - Wigan
- Safe & Sound Alarms - Manchester
- Safel - Thirsk
- Safelink Services Ltd. - London
- Safetell Ltd - Dartford
- Safetest Ltd - Bournemouth
- Safety Power Group Ltd. - Farnborough
- Saffron - Hove
- SAFT Ltd - Harlow
- Saft Ltd. - South Shields
- Saftronics Ltd - Leeds
- Sagemaster Cases Ltd. - Tunbridge Wells
- Sailes Marketing Ltd. - Pershore
- SAL Pharma (Division of Ascot Autoclaves Ltd) - Wokingham
- Salient Services Ltd - Grimsby
- Salton Europe Ltd. - Manchester
- Samms Electronics - Norwich
- Samsung Electronics (U K) 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)
- Sanyo Europe Ltd. - Watford
- Sarbin Solutions Ltd - Caldicot
- Sargent Electrical Services Ltd. - Beverley
- Saros Technology Ltd. - Wallingford
- Sarsen Technology Ltd - Marlborough
- SATaRE - Automated Designs Ltd - Wimborne
- Sato U K Ltd. - Harwich
- Saul Research - Towcester
- Saunders Electronics Ltd - Hinckley
- Sauter Automation Ltd. - Basingstoke
- Saville Audio and Visuals Ltd - York
- Saws (UK) Ltd - Heathfield
- Sbk Computers Ltd. - Chesterfield
- Scame-Uk Ltd. - Tewkesbury
- Scan Alarms & Security Systems (U K ) Ltd. - Newtownabbey
- Scan Logic Ltd. - Walsall
- Scan Optics Ltd. - Watford
- Scanivalve Corp - Bath
- 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
- Schneider Electric - Milton Keynes
- Schneider Electric - Swindon
- Schneider Electric Ltd. - Chippenham
- Schneider Electric Ltd. - Coventry
- Schott UK Ltd - Stafford
- Schunk U K Ltd. - Pudsey
Schurter Ltd - Bognor Regis- Sci-Lab Analytical Ltd. - Chester
- Scientific Electro Systems Ltd. - Rochford
- Scientific Glass Blowing Co. Ltd. - Oldham
- Scientific Management Associates (U K) Ltd. - Andover
- Scientific Vacuum Systems Ltd. - Wokingham
- Scientific Wire Co - Dunmow
- Scientifica Ltd. - Uckfield
- Scientifica-Cook Ltd. - London
- Scimar Engineering Ltd - Exeter
- Scitec Instruments Ltd - Bradford on Avon
- Scitsu com - Sheffield
- SCL - Crawley
- Scorpion Group - Gloucester
- Scorpion Oceanics Ltd - Saffron Walden
- Scotaudio - Dunblane
- Scotfax - Edinburgh
- ScotGold Products - Aberdeen
- Scotia Electronics - Dunfermline
- Scotia Energy Saving Systems Ltd. - Glenrothes
- Scotland Electronics (International) Ltd. - Forres
- Scott Cables - Portsmouth
- Scottish Electric Ltd. - Dundee
- Scottish Enterprise - Glasgow
- Scottish Enterprise Forth Valley - Stirling
- Scottish Enterprise Lanarkshire - Bellshill
- Scottish Enterprise Renfrewshire - Paisley
- Scottlamp Ltd. - Alton
- Screen Subtitling Systems Ltd. - Ipswich
- Screencraft Ltd - London
- Sdc Industries Ltd. - Glasgow
- SDF Electronics Ltd - Rossendale
- Sealparts Ltd. - Dudley
- Searchlight Electric Ltd - Manchester
- Seatronics Ltd. - Aberdeen
- Seaward Electronic Ltd - Peterlee
- Seba K M T U K Ltd. - Calne
- Seca Ltd. - Birmingham
- Secomak Ltd - Elstree
- Secure Computer Systems Ltd - Gloucester
- Secure Engineering Ltd - Maidstone
- Secure It All - Halesowen
- Secure Retail Ltd - Coalville
- Securikey Ltd. - Aldershot
- Security and Control Scotland - Glasgow
- Security Consultancy & Technical Ltd. - Croydon
- Sedgewall Communications Group Ltd. - Dunstable
- Seetrax Cae Ltd - Ringwood
- SEG Protection Relays - Maidenhead
- Seho UK Ltd - Chadderton
- Sei Interconnect Products (Europe) Ltd - Swansea
- Seiko U K Ltd. - Maidenhead
- Sekisui Alveo Ltd. - Merthyr Tydfil
- Select Enclosures - Cheltenham
- Selectronic Ltd. - Witney
- Selex Communications Ltd. - Basildon
- Sellec (Special Cables) Ltd. - Worksop
- Sematron U K Ltd. - Basingstoke
- Semefab (Scotland) Ltd. - Glenrothes
- Semi-Dice UK - Princes Risborough
- Semicon Services - Kingsbridge
- Semikron Ltd. - Hertford
- Semitest - Fairford
- Semtech Ltd. - Romsey
- Senate Electrical - Rosyth
- Sencon (UK) Ltd - Droitwich
- Senju Manufacturing (Europe) Ltd. - High Wycombe
- Sens-Tech Ltd - Slough
- 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 Ltd - Rugby
- Seos Ltd. - Burgess Hill
- Sepro Robotique Ltd. - Milton Keynes
- Sequoia Technology Group 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
- Serpac Enclosures Ltd - Fareham
- Service Systems Ltd. - Newcastle
- Servicecal Ltd - Manchester
- Serviscomm Ltd - Darlington
- Servitech International Ltd. - Bedford
- SES-Sterling Ltd - Telford
- Setech Solutions Ltd. - Northampton
- Severn Controls Ltd. - Gloucester
- Severn Electric Co Ltd - Stourport on Severn
- Severn Sales - Bristol
- Seyco (Electronics) Ltd. - London
- SGS United Kingdom Ltd - Camberley
- Shareteq Ltd - Spalding
- Sharp Laboratories of Europe Ltd. - Oxford
- Sharp Manufacturing Co of Uk - Wrexham
- Sharples Stress Engineers Ltd. - Preston
- Shaw Moisture Meters (UK) Ltd - Bradford
- Shawcity Ltd - Swindon
- Shawtech Ltd. - Manningtree
- Sherborne Sensors Ltd. - Basingstoke
- Sherborne Technical Services Ltd. - London
- Sherwood Electronics Ltd - Long Eaton
- Shielding Solutions Ltd - Braintree
- Shindengen (U K) Ltd. - Welwyn Garden City
- Shire Consulting Ltd. - Bromsgrove
- Shire Controls Ltd. - Harlow
- Short Run Press Ltd. - Exeter
- Shout Telecoms Ltd - Waterlooville
- Showtec Lighting and Sound - Shoreham by Sea
- ShP Solutions - Lancaster
- Shrink Polymer Systems - Rushden
- Shrinktek Polymers International Ltd - Cheltenham
- 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 Energy Systems - Dursley
- Siemens Building Technologies (Fire Protection) - Camberley
- Siemens Communication Systems - Milton Keynes
- Siemens Energy Service Fossil - Newcastle upon Tyne
- Sierra Integrated Systems Ltd - Yeovil
- SIGA (Electronics) Ltd - Sandy
- Sigma Marketing - Plymouth
- Sigmaprint Technologies Ltd - Dorchester
- 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 (AC) Ltd - Washington
- SIGNO Communication Electronics - Bedford
- Signpost Identity - Rowley Regis
- Siko Ltd - Thirsk
- Silent Power Systems Ltd - Stoke on Trent
- Silicon Microsystems Ltd. - Malmesbury
- Silicone Fabrication Services Ltd - Luton
- Silva Ltd. - Livingston
- Silver Telecom Ltd. - Newport
- 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 - Farnborough
- Simpson Thomson Filtration - Stockport
- Simtech Simulation Techniques Ltd. - Aylesbury
- Simtek EMS Ltd - Margate
- Simulation Systems Ltd. - Bristol
- Sinclair Voicenet Ltd. - Glasgow
- Sinelco Controlgear - Glasgow
- Sinolec Components Ltd - Guildford
- Sirus Microtech Ltd. - Wellington
- SIS (Engineers) Ltd - Manchester
- SISD ltd - Stevenage
- SJM Eurostat (UK) Ltd - Stockport
- Skilcom Ltd - Thatcham
- Skill Electronics Ltd - Birmingham
- SKN Electronics - Birmingham
- Skye Instruments Ltd. - Llandrindod Wells
- Skylark Energy Systems Ltd. - Banchory
- Skymasts Antennas Ltd. - Northampton
- Skyquest Ltd t/a Skyquest Aviation - Maidenhead
- SL Power Electronics - South Molton
- Slater Plastics Ltd - Witney
- Slaters Electricals Ltd - Blaydon on Tyne
- 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 - Waterlooville
- Smart Systems - Leicester
- Smart-E (U K) Ltd. - Dorking
- Smartscan Ltd - Corby
- Smatex Ltd - Salford
- Smc Pneumatics (U K ) Ltd. - Milton Keynes
- Smerdon & Jones Ltd. - Plymouth
- Smith Jones Communications Ltd - Brackley
- Smith Myers Communications Ltd. - Biggleswade
- Smith's Environmental Systems Ltd. - Chelmsford
- Smithers Pira (formerly Pira International) - Leatherhead
- Smiths Detection - Watford
- Smr Electronics Ltd. - Chippenham
- SMS Electronics Ltd - Beeston
- SMS Product Services Limited - Beeston
- SMT Developments Ltd - Warwick
- Snap-on U K Holdings Ltd. - Kettering
- Snelflight Ltd - Waterlooville
- Softel Ltd. - Reading
- Soil Instruments Ltd. - Uckfield
- Solar Communications Ltd. - Chippenham
- Solarsoft Leicester - Leicester
- Solartron Analytical - Farnborough
- Solartron Metrology Ltd - Bognor Regis
- Solbraze Ltd - Tavistock
- Solder School Technology - Glenrothes
- Solderstar Ltd. - Rochdale
- Solectron Ltd. - Fareham
- 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
- Sonavision Ltd. - Aberdeen
- Sondia Lighting Ltd. - Hull
- Sonic Communications (International) Ltd. - Birmingham
- Sonifex Ltd. - Wellingborough
- Sontay - Edenbridge
- Sontec (Electronics) Ltd. - Norwich
- Sony Manufacturing Co Uk - Bridgend
- Sony Manufacturing Co Uk - Bridgend
- Sor Europe Ltd. - Horsham
- Sorion Electronics Ltd - Edgbaston
- SouMac Assembly Services Ltd - Portsmouth
- Sound & Visual Services Ltd - Surbiton
- Sound Broadcast Services Ltd. - Evesham
- Sound Dynamics Ltd. - Belper
- Sound Induction Systems Ltd - Newtown
- Sound Leisure Ltd. - Leeds
- Sound Technology Ltd. - Letchworth
- Soundandsafe com - Luton
- Sounds Incorporated - Knottingley
- South Eastern Auto Electrical Services Ltd. - Maidstone
- South Midlands Communications Ltd. - Eastleigh
- South West Battery Charging Systems - Stroud
- South West Communications Group Ltd - Exeter
- South West Instrumentation - Devizes
- South Woodford Electronics Ltd. - Bishops Stortford
- Southdown Circuits Ltd. - Arundel
- Southern Calibration Laboratories Ltd - Southampton
- Southern Care Maintenance - Tonbridge
- Southern Electronics - North Shields
- Southern Scientific Ltd - Lancing
- Souvenir (Cranwell) Ltd. - Grantham
- Sovereign Connections Ltd - Wokingham
- Sovereign Rotating Machines Ltd. - Bognor Regis
- SP Electronics - Preston
- Space Airconditioning plc - Guildford
- Space Electronics Ltd (SUMIDA UK) - Stratford upon Avon
- Sparc Systems Ltd. - Malvern
- Sparex Ltd. - Exeter
- 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 Microwave Solutions Ltd - Cranfield
- Specialist Power Systems Ltd - Bedford
- Specialty Coating Systems - Woking
- Specialty Electric Motors Ltd. - Lancing
- Spectraglass Ltd. - Perth
- Spectro Analytical (U K) Ltd - Halesowen
- Spectrogon U K Ltd. - Glenrothes
- Spectronic Camspec Ltd - Leeds
- Spectrum Communications - Dorchester
- Speedboard Assembly Services Ltd - Windsor
- Speedboard Circuit Services - Windsor
- Speedy Cables Ltd - Swansea
- Speirs Robertson & Co. Ltd. - London
- Spellman High Voltage Electronics Ltd. - Pulborough
- Spendor Audio Systems Ltd - Hailsham
- Spiers Electronics - Verwood
- Spirit Circuits Ltd. - Waterlooville
- Spiritel Ip Communications Scotland Ltd. - Westhill
- Spooner Industries Ltd - Ilkley
- Spring (Europe) - Crowborough
- Sprint Electric Ltd. - Arundel
- Sprint Ltd T/A SCS - Hove
- SPTS Technologies - Newport (Gwent)
- Spur Electron Ltd - Havant
- Spursmore Design Ltd - Exeter
- SPW Traffic Control Ltd - Stoke on Trent
- SQN Electronics Ltd - Ballasalla
- Src Systems Ltd. - Ipswich
- Srs Automation Ltd. - Congleton
- SRS Products plc - Harlow
- Srs Telecom Ltd. - Dunfermline
- SSDC Ltd - Basingstoke
- SSS Alarms & CCTV - Buckley
- St Albans Meter Co Ltd - St Albans
- 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 Ltd - Diss
- Stadium Zirkon Uk Ltd. - Rugby
- Staeng Ltd - Truro
- Stafford Aero Technologies Ltd. - Norwich
- Stag Instruments Ltd - London
- Stage Control Ltd - Edgware
- Stage Electrics - Gateshead
- Stage Electrics Partnership Ltd. - Smethwick
- Stamar Electronic Services - Lincoln
- Standard Signs & Traffic Systems Ltd. - Newport
- Standel Dawman Holdings Ltd. - Nelson
- Standex Electronics (UK) Ltd - Tonbridge
- 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
- Starkey Laboratories Ltd. - Stockport
- Starlec Ltd. - Hemel Hempstead
- Starmount Ltd - Nelson
- Starpoint Adaptive Optics Ltd - Durham
- Startec Services - Eastbourne
- Static Control Components (Europe) Ltd. - Reading
- 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
- Steljes Ltd - Brentford
- Stellar Controls Ltd. - St Neots
- Stemmer Imaging - Farnham
- Step Enterprise Ltd - Nottingham
- Stephen P Wales - Torquay
- Stephenson Control Systems Ltd. - Harrogate
- Stephenson Research Ltd - Gateshead
- Stevenage Circuits Ltd - Stevenage
- Stewart & Allen Ltd. - Cheltenham
- Stewart Technology Ltd - Galashiels
- Stickleback Manufacturing Ltd - Basildon
- Stirling Technology - Birmingham
- Stmicroelectronics - Bristol
- Stmicroelectronics Ltd. - Marlow
- Stockall Electronics Ltd. - Malvern
- Stocksigns Ltd - Redhill
- Stocom Ltd - Crewe
- Stokvis Tapes (U K) Ltd. - Tring
- Stonegate Instruments Ltd - Leeds
- Stoneridge Electronics - Dundee
- Stontronics Ltd - Reading
- Stop-Choc Ltd. - Slough
- Storage Products (SPS) Ltd - Stirling
- Storm Interface - West Drayton
- Storm Power - Rhyl
- Stormcut Ltd - York
- Stortech Electronics Ltd. - Harlow
- Stotron - Scunthorpe
- Straight Plc - Leeds
- Strain Measurement Devices Ltd - Bury St Edmunds
- Strainstall UK Ltd - Cowes
- Strategix Software Plc - Bourne End
- Stratford Tools Ltd - Buckingham
- Stratton Technologies Ltd. - Biggleswade
- Strayfield Ltd - Reading
- Strikalite Batteries - Burntwood
- Stroud Instruments Ltd. - Stroud
- Stryke International - High Wycombe
- Sts Switchgear Ltd. - Cradley Heath
- Stuart James Systems Ltd - Lichfield
- Studweldpro - U K Ltd. - Newark
- Stylebord Ltd. - Cambridge
- Sub Assembly Services - Tewkesbury
- Sub Contract Services - Letchworth
- Suffolk Automation Ltd. - Ipswich
- Sumitomo Electric Shrink Products - Swindon
- Summit Solder Products - Biggleswade
- Sumo Technologies Ltd. - York
- Sun Microsystems Scotland Lp - Linlithgow
- Suna Supplies Ltd. - Surbiton
- Sunbridge Electrical Wholesalers Ltd - Bradford
- Sunpower Technology LLP - Aldermaston
- Sunvic Controls Ltd. - Hamilton
- Supac Ltd - Merthyr Tydfil
- Supake Ltd - Sheffield
- Superchips Ltd. - Buckingham
- Superspares - London
- Suppression Devices Ltd - Clitheroe
- Sure24 Ltd - Nottingham
- Surescreen Diagnostics Ltd. - Derby
- 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
- Surgebuster Ltd - Bideford
- Surgecam Ltd - Seaham
- Surgetech Ltd. - Emsworth
- Sussex Assemblies Ltd - Brighton
- Sutronics - Swanage
- Swagelok Bristol - Avonmouth
- Swale Components Ltd. - Whitstable
- Swan EMS Ltd - Abertillery
- Swan Generators Ltd. - Banbury
- Swift Automation and Control Systems Ltd - Carlisle
- Swift Circuits Ltd. - Llanelli
- Switchgear & Instrumentation Ltd. - Bradford
- Switching Components - Feltham
- Switchtec Ltd. - Stone
- Sy Electronics Ltd. - Salford
- SYBS Ltd - Sheffield
- Sycos (U K ) Ltd. - Dunstable
- Syfer Technology Ltd. - Norwich
- Sygnus Data Communications Ltd - High Wycombe
- 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
- Sysmedia Ltd. - Horley
- Systech Controls Ltd - Stafford
- Systech Instruments - Thame
- Systegration Ltd - Littlehampton
- System Connections - Cambridge
- System Group Ltd. - Carlisle
- Systematics Printed Circuits Ltd. - Eastleigh
- Systemation Software Ltd - Ferndown
- Systems Power Engineering Ltd - Abercarn
- Systems Services (S P Barrett Ltd ) - Boston
- Systems Technology (S E ) Ltd. - Rochester