| 01415W | S & R Electric Ltd | YES | NO | | NO | NO | NO | NO | Reg-Pending | NO |
| 00887WB | S K S Communications | YES | YES | | YES | YES | YES | YES | YES | Reg-Pending |
| 01487W | Safeco Electric | YES | NO | | N/A | N/A | N/A | N/A | Reg-Pending | Reg-Pending |
| 00438WB | Sally Salon Services (Ireland) Ltd | YES | NO | Sally Salon Services | YES | YES | YES | BATT Reg-Pending | Reg-Pending | Reg-Pending |
| 01474W | Salon Savers | YES | NO | Ian Campbell | N/A | N/A | N/A | N/A | YES | YES |
| 00978W | Samsung Electronics (UK) Ltd | YES | NO | | N/A | N/A | YES | YES | YES | YES |
| 01121WB | Sanyo Europe Ltd | YES | YES | Sanyo Europe Ltd - Ireland Branch | YES | N/A | N/A | YES | YES | NO |
| 01490WB | Sanyo Sales & Marketing Europe GmbH | YES | YES | Sanyo Sales & Marketing Europe Gmbh (Ireland Branch) | N/A | N/A | N/A | N/A | N/A | Reg-Pending |
| 00851W | Sartorius Ltd | YES | NO | Sartorius Mechatronics Uk Limited | YES | YES | YES | YES | YES | Reg-Pending |
| 01348W | Save Energy 4 You Ltd | YES | NO | | N/A | N/A | N/A | N/A | YES | YES |
| 01225B | Save-You Services Ltd | NO | YES | | N/A | N/A | N/A | YES | YES | YES |
| 01455W | SC Data Systems Ltd | YES | NO | | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending |
| 01629WB | Scan Coin Ireland Ltd | YES | YES | | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending |
| 00347WB | Schneider Electric Ireland | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00527WB | Schneider Electric IT Logistics Europe Ltd | YES | YES | APC by Schneider Electric | YES | YES | YES | YES | YES | YES |
| 00794W | Scientific Games Worldwide Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 00312WB | Scott & O'Shea Ltd | YES | YES | | YES | YES | YES | YES | NO | NO |
| 01035WB | SDI Dental Limited | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00311W | Sea-Tec Developments Ltd | YES | NO | TEC Electric | YES | YES | YES | YES | YES | YES |
| 01537W | Sean Dunne Vending Company Ltd | YES | NO | | N/A | N/A | N/A | N/A | N/A | YES |
| 01244W | Sean Fagan Wholesale Ltd | YES | NO | | NO | NO | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending |
| 00874WB | Sean Fitzpatrick (Wholesale) Ltd | YES | YES | Fitzpatrick Wholesale | YES | YES | YES | YES | YES | YES |
| 01538W | Secret Cellar Limited | YES | NO | Secret Cellar | NO | NO | NO | NO | NO | Reg-Pending |
| 01256B | Secure Power Systems Ltd | NO | YES | | N/A | N/A | N/A | YES | Reg-Pending | Reg-Pending |
| 00252W | Selc Eireann Teoranta / Selc Ireland Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01019W | Selecta Refreshments Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 00971WB | Selective Marketplace Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00856W | Sensl Technologies Ltd | YES | NO | Sensl | N/A | YES | YES | YES | YES | YES |
| 01007WB | Sercom Solutions Ltd | YES | YES | | N/A | YES | YES | YES | YES | YES |
| 01336B | Serfac Ltd | NO | YES | | N/A | N/A | N/A | YES | YES | YES |
| 01233W | Serosep Ltd | YES | NO | | N/A | YES | YES | YES | YES | YES |
| 00517W | Servaplex | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01227B | Setanta Vehicle Importers Ltd | NO | YES | | N/A | N/A | N/A | YES | YES | YES |
| 01046W | Shannon Hotel Supplies (Wholesale) Ltd | YES | NO | | N/A | YES | YES | YES | YES | YES |
| 01433B | Shannon Wholesale Electrical Company Ltd | YES | YES | | N/A | N/A | N/A | YES | YES | YES |
| 00745WB | Shannonside Audio / Video Ltd | YES | YES | | YES | YES | YES | YES | WEEE YES | Reg-Pending |
| 00131WB | Sharp Electronics (UK) Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00095WB | Sharptext Ltd | YES | YES | | YES | YES | YES | YES | YES | Reg-Pending |
| 00323WB | Sherlane Agencies Ltd | YES | YES | | YES | YES | YES | YES | YES | Reg-Pending |
| 01569W | Shockeronics | YES | NO | | NO | NO | NO | NO | NO | Reg-Pending |
| 00057WB | Shomar Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00468WB | Shop Direct Ireland Limited | YES | YES | Family Album & Kays | YES | YES | YES | YES | YES | Reg-Pending |
| 01093W | Shortgrove Ltd | YES | NO | Boss | N/A | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending | NO |
| 00099W | Siemens Healthcare Diagnostics Manufacturing Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 00075WB | Siemens Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00821WB | Sierra Communications Ltd | YES | YES | | YES | YES | YES | YES | YES | Reg-Pending |
| 01408WB | Sight & Sound Distributors Ltd | YES | YES | | N/A | N/A | N/A | N/A | YES | YES |
| 00170WB | Sigma Telecom Ltd | YES | YES | Sigma Telecom | YES | YES | YES | YES | YES | NO |
| 00169WB | Sigma Wireless Communications Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00171 | Sigma Wireless Technologies Ltd | YES | NO | | YES | Reg-Pending | NO | NO | NO | NO |
| 00565WB | Sigma-Aldrich Ireland Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00285WB | Signet Group Plc | YES | YES | H Samuel; Ernest Jones | YES | YES | YES | YES | YES | Reg-Pending |
| 00798WB | Sigtec Ltd | YES | YES | | N/A | YES | YES | YES | YES | YES |
| 01339W | Silentmaster Vacuum Systems | YES | NO | Silentmaster | Reg-Pending | NO | Reg-Pending | Reg-Pending | Reg-Pending | NO |
| 01482WB | Silver Ocean B.V. | YES | YES | iBOOD.com | N/A | N/A | YES | YES | YES | YES |
| 01404WB | Silverstone Media Solutions Ltd | YES | YES | | YES | YES | YES | YES | WEEE YES | Reg-Pending |
| 01004W | Singer Sewing Centre | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01166WB | Sky In-Homes Services Ltd | YES | YES | SHS Ltd | N/A | YES | YES | YES | YES | YES |
| 01447WB | Skype Technologies S.A. | YES | YES | | N/A | N/A | NO | NO | Reg-Pending | NO |
| 00403WB | Slingsby Mail Order Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00492WB | Smith & Nephew Ltd | YES | YES | | YES | YES | YES | YES | YES | Reg-Pending |
| 00308WB | Smyths Toys | YES | YES | | YES | YES | YES | YES | YES | Reg-Pending |
| 01312W | Soft / Export Limited | YES | NO | Media Centric | NO | NO | NO | Reg-Pending | Reg-Pending | NO |
| 01275W | Softco Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 00945W | SOL Electronics Ltd | YES | NO | | N/A | YES | YES | YES | NO | NO |
| 00557WB | Solas Geal Distribution Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00070WB | Sony (U.K.) Ltd | YES | YES | Sony Ireland | YES | YES | YES | YES | YES | YES |
| 00330WB | Sony Computer Entertainment Ireland Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 01449W | Sound Communications & Electrical Ltd | YES | NO | | YES | YES | Reg-Pending | Reg-Pending | Reg-Pending | Reg-Pending |
| 01099WB | Sound Productions Ltd | YES | YES | | N/A | YES | YES | YES | YES | Reg-Pending |
| 00629W | South West Wholesale Ltd | YES | NO | | YES | YES | YES | YES | YES | Reg-Pending |
| 00643WB | Spaldings (Ireland) Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00861WB | Spark Promotions (Ireland) Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00465W | Spectrum Distribution Ltd | YES | NO | | YES | YES | YES | YES | YES | Reg-Pending |
| 00393WB | Spicers (Ireland) Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 01159WB | Sports Division (Eireann) Ltd | YES | YES | JJB Sports | N/A | YES | YES | YES | YES | YES |
| 00854WB | Spraychem Ltd | YES | YES | Spray-Chem Environmental | N/A | YES | YES | YES | YES | YES |
| 00831W | Sprayquip Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01296W | Springhill Woodcrafts Ltd | YES | NO | | N/A | N/A | N/A | YES | YES | YES |
| 00417W | Square One Distribution Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01452B | SRL International Concepts Ltd | NO | YES | | N/A | N/A | N/A | N/A | YES | YES |
| 00992WB | SSL Healthcare Ireland Ltd | YES | NO | | YES | YES | YES | BATT Reg-Pending | Reg-Pending | Reg-Pending |
| 01172W | Starbucks Coffee Company (Ireland) Limited | YES | NO | Starbucks Coffee Company | YES | YES | YES | YES | YES | YES |
| 01402WB | STC Socket Tool Company Ltd | YES | YES | | N/A | N/A | N/A | N/A | YES | YES |
| 00700W | Stefan Runge | YES | NO | Exaktool | YES | YES | YES | YES | NO | NO |
| 01065W | Stella Doradus Ireland Ltd | YES | NO | | N/A | YES | YES | YES | YES | YES |
| 01268W | Steorn Ltd | YES | NO | Steornlab | N/A | N/A | N/A | YES | YES | Reg-Pending |
| 00980W | Stephens Catering Equipment Co Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01318W | Stillorgan Decor Center Ltd | YES | NO | | N/A | N/A | N/A | N/A | YES | YES |
| 01042WB | Stradbally Farm Services Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 01527WB | Stratus Technologies Ireland Ltd | YES | YES | Stratus Technologies | YES | YES | YES | YES | YES | YES |
| 00830W | Street and Park Equipment Co. Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01265WB | Strongline Autoparts Ltd | YES | YES | | N/A | N/A | N/A | YES | YES | YES |
| 00979W | Sumdveldt Ltd | YES | NO | N. O'Reilly Hairdressing & Beauty Supplies | YES | YES | YES | YES | YES | NO |
| 00630WB | Sun Microsystems Ireland Ltd | YES | YES | Sun Microsystems Ireland | YES | YES | YES | YES | YES | Reg-Pending |
| 01068W | Sundance Motors | YES | NO | | N/A | YES | YES | YES | YES | YES |
| 00800WB | Sundrelle Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 01559W | Sunjoy Ireland Ltd | YES | NO | | NO | NO | NO | NO | NO | Reg-Pending |
| 01576WB | Sunnyheat Ireland Ltd | YES | YES | | N/A | N/A | N/A | N/A | N/A | YES |
| 00657W | Suparule Systems Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 00164WB | Superquinn | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00898W | Sureweld International Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01626WB | Survey Instruments Services Ltd | YES | YES | | Reg-Pending | NO | NO | NO | NO | NO |
| 01249B | Suzuki Cars (Ireland) Ltd | NO | YES | | N/A | N/A | N/A | YES | YES | YES |
| 00301W | Sweeney O'Rourke Ltd | YES | NO | | YES | YES | YES | YES | YES | YES |
| 01114W | Switch Distribution Ltd | YES | NO | | N/A | N/A | N/A | YES | YES | YES |
| 01293W | Sword Medical Ltd | YES | NO | | N/A | YES | YES | YES | YES | YES |
| 01622W | Synergistics Satellite Sales Ltd | YES | NO | | N/A | N/A | N/A | N/A | N/A | YES |
| 01609W | Syntec Scientific | YES | NO | | YES | YES | YES | YES | YES | YES |
| 00160WB | System Video Ltd | YES | YES | | YES | YES | YES | YES | YES | YES |
| 00948W | Systemhouse Technology Group Ltd | YES | NO | Topsec Technology | YES | YES | YES | YES | YES | NO |