| S & B Controls | S & C Electric | S & D | S & P |
| S & S Electric | S-S Technologies | S. Himmelstein | S.A.C.M. |
| S.A.I.C. | S.A.Im.El | S.A.M.E. | S.A.M.P. |
| S.A.S. Fluid Power | S.B.C. Motovariatori | S.C.E. Elettronica | S.C.S. |
| S.E.D. | S.E.G. | S.E.I. | S.E.S. |
| S.G.T.M. | S.H.P. | S.I. Handling | S.I.C.E. |
| S.I.C.M.E. | S.I.G. | S.I.I.G. | S.I.S.E. |
| S.J. Controls | S.M.W. Systems | SAB Nife | SE Labratories |
| SICK Optic Electronic | SKYEY | SLI Industies | SMW Systems Inc. |
| SPI Electronic | SPI Robot Interface | SSB | ST |
| Saacke | Sab Nife Corp | Sab-Nife | Sabina |
| Saca | Sacmi | Sae Power | Saei Diffusion |
| Sael | Saf Drive Systems | Safe Power Systems | Safeline |
| Safeline LTD. | Safematic | Safetran | Safety Mark |
| Safety Power | Saflock | Saflok | Saflox |
| Saft Nife | Saft Nife Corp | Saft Power Systems | Saft-Knife |
| Saft-Nife | Saftronics | Sagitta | Sahm |
| Saia | Saias | Sailor Pen | Saino |
| Salcomp | Salem Equipment Inc. | Salient Electronics | Salora |
| Salvagnini | Sam Dick Industries | Samco | Sameca |
| Sames | Samlex | Samlex America | Samovi |
| Sampo | Samsung | Samsung Electro-Mechanics | Samsung Electronics |
| Samtec | SanRex | Sanduk | Sanford Miller Corp |
| Sangiacomo | Sanken | Sanken Electric | Sanken Power Supply Division |
| Sanki | Sankyo | Sanmina | Sanmina Corp |
| Sanovo | Sanrex | Sanse | Sansei |
| Santerno Elettronica | Sanyo | Sanyo Denki | Sapal |
| Sarasota Automation | Sarasota Engineering | Sarcem | Sargon |
| Sargon Industries | Sarnafil | Sarnell | Sartorius |
| Sas | Sasib | Sat | Satake |
| Satcon Technology Corporation | Satec | Sateg | Satmoiraghi |
| Sato | Satt Control | Satt Electronics | Sauer DanFoss |
| Sauer Sunstrand | Sauer-Sundstrand | Saurer | Sauter |
| Savio | Savio-Matec | Saxon | Sayag |
| Sba | Sbc | Sbe Inc. | Sca |
| Scan Amplifier | Scan amp | Scan-Core | Scandialogic |
| Scanmeg | Scanning Devices | Scanpro | Scanray |
| Scanvaegt | Scc | Sce | Sceptre |
| Schad Sintec | Schaefer | Schaevitz | Schafer |
| Schaffer | Schaffner | Schalatter Electronic | Scharer |
| Schaudt | Scheer | Schellenberg | Schelling |
| Schember | Schenck | Schiapparelli | Schiele |
| Schindler | Schjeldahl | Schlafhorst | Schlafhorst Electronics |
| Schlatter | Schlatter Electronic | Schleicher | Schleifenuberwachung |
| Schlumberger | Schlumberger Diagnostic Test System | Schmersal | Schmitt |
| Schneider | Schneider Electric | Schneider Metal Mfg. | Schneider-Werk |
| Schon Electronic | Schott | Schott Power Systems | Schrack |
| Schrieber | Schroff | Schubert | Schubert & Salzer |
| Schulz | Schumacher | Schumacher Electric Corp | Schumag Schumatronik |
| Schunk | Schurman | Schutz | Schweiter |
| Sci | Sciaky | Scientific Columbus | Scientific Micro Sys |
| Scientific Solutions | Scoa Systems | Scofima | Scomar |
| Scope Inc. | Scorpion | Scot Inc. | Scotsman Ice Systems |
| Scotsman_Ice_Systems | Scott | Scott Mccrea | Scottman |
| Scr Controls | Screen | Scs Products | Scully |
| Sea | Sea Sonic Electronics | Seac Engineering | Seagar |
| Seagate | Seal-A-Tron | Sealevel | Sealevel Systems |
| Seasonic | Seasonic Electronics | Seatec | Secas |
| Seco | Seco Electronics | Secrest Machine Corp | Securitron |
| Sedlbauer | Seeka | Seekirk | Seg |
| Sei | Seiberco | Seiberco Inc. | Seicof |
| Seidel | Seik0-Aaf | Seiki | Seimens |
| Seiscor | Seiscor Protocol | Seiwa | Selas |
| Selcom | Selec | Seleco | Selectic |
| Selectron | Selectronix | Selema | Selenia |
| Selet | Self Scan | Self-Scan | Selfscan |
| Selt Electtronica | Seltec | Selti | Selti Electtronica |
| Selti Elettronica | Sem | Semar | Semiconductor Circuits |
| Semifusion Corp. | Semipower Systems | Semitool | Semtech Corporation |
| Sen | Sencon | Sencore | Seneca |
| Sennett Control Co. | Sensall | Sense | Sensi-Tronics |
| Sension Ltd. | Sensis Corporation | Sensitron Semiconductor | Sensor |
| Sensor Engineering | Sensoray | Sensortech Systems | Sensortronics |
| Sensotec | Sensus Technologies | Sensym | Sentech |
| Sentek Systems | Sentex Systems | Sentinel | Sentra |
| Sentrex | Sentrol | Sentron | Sentry-Lite |
| Seo shin | SepEx | Sepco | Sepi |
| Sepro | Sepro Robotique | Sepro Visual | Sepro-Robotique |
| Seq | Sequential | Sequoia-Turner | Ser Elektronik |
| Serac | Seram | Serco | Sercon |
| Serel | Seriplex | Serra Soldadura | Service Call |
| Service Call ticket # 706 | Service Engineering | Servo | Servo Dynamics |
| Servo Dynamics Corp. | Servo Motors Inc. | Servo Products | Servo-Tek |
| Servocon | Servogor | Servomac | Servomar |
| Servomex | Servosystem | Setec | Setra |
| Sevcon | Seveco | Seventeam | Sever |
| Sew-Eurodrive | Sge Lovato | Sgelovato | Shaban |
| Shackleton | Sharmilles | Sharnoa Electronics | Sharon |
| Sharp | Sheet Metal Automat. | Sheller-Globe | Shenzen Sed Industry |
| Sheridan Systems | Sherman Theaters LTD | Sherman Theaters LTD. | Sherman Treaters |
| Sherman Treaters LTD | Sherrex Systems Ltd. | Shezhen Mastech | Shibaura |
| Shihlin | Shima Seiki | Shimaden | Shimadzu |
| Shimpo | Shin I Electric | Shin Nippon Kiko | Shin Nippon Koki Co. |
| Shinano Kenshi | Shindengen | Shindengen America | Shindengen Electric Mfg |
| Shinko | Shogyo Intl Corp | Shokai Far East | Shoketsu |
| Show & Tell Products | Showa Denshi Electronics Inc | Shu Min | Shugart |
| Shumag | Shumway Brothers | Shure | Shure Brothers Inc. |
| Shure Incorporated | Shuttle | Shvanz | Si-Metric |
| Siae | Siae Microelectronica | Sick | Sie |
| Sieb & Meyer | Siebe | Siebe Appliance Controls | Siebert |
| Siecor | Siegel | Siei | Sielco |
| Siemens | Siemens Energy & Automation, Inc. | Siemens Kaeser | Siemens Medical Systems |
| Siemens Power Quality | Siemens-Allis | Siera West Power Systems | Sierra Power Systems |
| Sierracin | Sierratherm | Sigma | Sigma-Tek |
| Sigmatek | Signet Scientific | Signetics | Signode |
| Siko | Sikora | Silcon | Silicon Graphics |
| Silicon Micro | Silicon Valley Group | Silk City | Silmar |
| Siltec | Sim2 | SimDisk Milltronics | Sima |
| Simco | Simmons Engineering | Simon | Simplatron Systems |
| Simplex | Simpson | Simu | Sinano |
| Sinarcam | Sinetech Cc | Singer | Singer Kearfott |
| Singleton Corp | Sinico | Sinpro Electronics | Sinpro Electronics Co Ltd |
| Sinrace Technology | Sipa | Sipex Corp | Sipro |
| Sipromac | Sirco | Siruba | Sirus |
| Sistel | Sistig Corp. | Sisu | Sitek |
| Sitel | Sitma | Sitour | Sitra |
| Sitra Automation | Sitra Automazione | Sitronic | Sitte |
| Sjd | Skako | Skakotrol | Skaltek Electronic |
| Skan-A-Matic | Skf | Sky Caddle | Skynet |
| Skynet Electronic | Skynet Electronics | Skyway Magnetics | Sl Industries |
| Sl Montevideo Technology | Slaughter | Slautterback | Slb |
| Sli | Sli Industries | Slicing Specialist | Slicker |
| Sliverton | Sls | Sluiter | Sma |
| Smac | Smag | Small Power | Small Systems |
| Smalley | Smart Electronics | Smart Industries | Smartco |
| Smarteye Products | Smartspark Energy Systems | Smc | Smg |
| Smi | Smith Geosource | Smith Meter Inc. | Smith Rpm Corp. |
| Smith-Keighley | Smith-Meeker | Smiths Industries | Smiths Industries Power Supply |
| Smp Sintered Magnetics Promethe | Smps Power Supplies | Sms | Smsi |
| Smt | Smyth Europea Ind. | Snaptec Australia | Snc |
| Snyder General | Soar Corporation | Socapel | Socasin |
| Sodick | Sodilec | Soewer | Soft & Hard |
| Softal | Softrol Systems Inc. | Sogego | Sokki |
| Sokki Electronics | Sola | Sola Electric | Sola Heavi Duty |
| Solar | Solarbridge Technologies | Solarex | Solartron |
| Solid Flow Controls | Solidsflow | Solitech | Solleron Corporation |
| Sollich | Solna | Solo Products | Soltec |
| Soltec-Primeline | Somelec Energie & Technologie | Somet | Sometech |
| Sona-Trol | Sondenverstarker | Sonic Control Inc. | Sonics & Materials |
| Sonobond | Sony | Sony Magnescale | Sopelem |
| Soprel | Sor | Soren T. Lyngso | Soren T. Lyngso |
| Sorensen | Sorenser | Sormac | Sort-A-Weigh Systems |
| Sortex | Sortex-Scancore | Sorvall | Sotcher |
| Soudronic | Source Electronics | Source Electronics Ltd | South Bend Lathe |
| South Coast Technology | Southcon | Southern Automation | Southern Transformer |
| Southern Vehicle | Southport | Southwestern Battery | Southwire |
| Spa Master | Spacesaver | Spang | Sparc Systems Ltd. |
| Sparkle Power | Sparkle Power Int'l Ltd | Sparks | Sparling |
| Sparton | Sparton Of Canada | Sparton Southwest | Spath |
| Special Timer Corp. | Specialix | Specialty Engineering | Specter Instruments |
| Spectra Controls | Spectra-Physics | Spectro | Spectrol Electronics |
| Spectronics | Spectrum Controls | Spectrum Systems | Speedcall |
| Speedee Packaging | Speedstar | Speedy Die Inc. | Speedy Dryer |
| Spellman | Spellman High Voltage Electronic | Spence Engineering | Sperottorimar |
| Sperry | Spindel | Spinlab | Spirent |
| Spm Instrument | Sponsler Company | Sporlan | Sports Art |
| Spp | Spra-Rite Inc. | Sprague | Spraymation |
| Spreading Machine | Sprecher & Schuh | Sprint Electric | Sprint International |
| Sprout-Matador | Square D | Src Electronics | Ssb |
| Ssd | Sst | St. Regis | Sta-Hi |
| Stabylex | Stack Electronics | Stackpole | Staco |
| Staco Energy Products | Staefa | Staefa Control Board | Staefa Control Sys. |
| Staefa Control System | Staefa Control Systems | Staefe | Stahl |
| Stahlkontor | Stahlprodukter | Stal-Laval | Staley Machinery |
| Standard | Standard Havens | Standard Horizon Booklet Maker | Standard Industries |
| Standard Power | Standard Register | Standun | Stanford |
| Stanford Research Systems | Stanley | Stanley Access Tech | Star |
| Star Castle | Star Gate | Star Micronics | Star Parts Co. |
| Star Seiki | Starlinger & Co | Starpanel | Starrag |
| Starrett | Startco Engineering | Starvox Electronics | Statec Systems Inc. |
| Statec Technologies | Static Control Sys. | Static Controls Corp | Static Power Tech |
| Staticon | Statop | Statpower | Statpower Technologies |
| Statronics Power Supplies | Stauber | Staubli | Stc |
| Stc-Mercator | Stealth Computer | Stearns | Steed |
| Steel Specialties | Steelastic | Steelhead | Stefani |
| Stegmann | Steha Elektronik | Stein | Steinecker Elektroni |
| Steinmann | Stellite Coating Co. | Stephan | Stephan-Werke |
| Stepless Controls | Stepper | Steris | Sterl-Tronic |
| Sterlco | Sterling Controls | Sterling Electric | Sterling Extruder |
| Sterling Inc. | Sterling Scale | Sterling Systems | Sterling, Inc. |
| Sterner | Steuerung | Steuerungen Computer | Steuma |
| Steutronic | Stewart & Stevenson | Stewart Systems | Stewart Warner |
| Sti | Stiavelli | Still | Stober |
| Stock Equipment Co. | Stocker & Yale | Stockeryale | Stocktrol |
| Stone Safety | Stontronics | Storage Technology Corporation | Stored Energy Sys. |
| Stored Energy Systems | Stork | Storm | Storz |
| Strainstall | Stranco | Strand Electro | Strandberg |
| Strapac Corp | Strapack | Strapex | Strayfield |
| Streeter Amer | Streeter Amet | StreeterAmet | Streeteramet |
| Strike Technology | Strippit Inc. | Strobex | Stromag |
| Stromberg | Stromng | Stromrichter | Strongarm |
| Struers | Struthers Dunn | Stryker Fowler | Studer |
| Styrkonsult | Sugawara | Sugino Machine | Suhner |
| Sukeb | Sullair | Sullectron | Sulzer |
| Sulzer Electronics | Sumitomo | Summit | Sumtak |
| Sun | Sun Electric | Sun Hydraulics | Sun Microsystems |
| Sun Moon Star | Sun Power | Sunds Defibrator | Sundstrand |
| Sunhayato | Sunlit Japan Corporation | Sunnen | Sunnken |
| Sunny | Sunpower | Sunpower Technology | Sunshine |
| Sunx | Super Vexta | Super Wash | Super-Trol |
| Superba | Superior Electric | Superior Tube | Superscope |
| Supertek Electronics | Superwash | Supreme Equipment | Surefeed |
| Surface Combustion | Surftran | Surtronic | Surveyor |
| Suter Seon | Sutrak | Sutron | Sutron Electronic |
| Svenbrant Elektronik | Swanson | Swedot | Swen Sonic Corp. |
| Sweo Engineering | Swf | Swi | Switch Power |
| Switches Plus | Switching Power | Switching Power Inc | Switching Systems |
| Switching Systems International | Switchtec | Sy | Sycamore Engineering |
| Sygnus Controls | Sylvac | Sylvania | Sylvania Plasma TV |
| Sym Systems | Symbol | Symbol Technologies | Symcom |
| Synatec Electronic | Synchro | Syncroflow | Syncronetics |
| Synergy Microsystems | Synoptics | Synqor | Syntest |
| Syntron | Syracuse Electronics | Syrelec | Syron Engineering |
| Sysco | Syscon | Systek | System Controls |
| System Electronics | System Sensor | System3 Rosemount | Systematic Controls |
| Systeme Lauer | Systeme Lauer | Systems Associates | Systems Chemistry |
| Systems Northwest | Systemtechnik | Systro | Systrol |
| Systron | Systron-Donner | Systronic | Sytek |
| Sytron | saflok |
