| Country | Rank | Manufacturer | Computer | Rmax | Installation Site | Year | Area of Installation | # Proc | Rpeak | Nmax | N1/2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Austria | 394 | IBM | SP PC604e 332 MHz | 39.43 | AI Informatics GmbH (AII) | 1999 | Industry Database | 124 | 82.33 | . | . |
| Belgium | 335 | IBM | SP PC604e 332 MHz | 43.07 | Procter and Gamble | 1999 | Industry | 136 | 90.2 | . | . |
| Denmark | 495 | IBM | SP P2SC 120 MHz | 33.9 | UNI-C Lyngby | 1999 | Academic | 100 | 48 | . | . |
| Finland | 71 | Cray/SGI | T3E750 | 123.98 | CSC (Center for Scientific Computing)Espoo | 1997 | Academic | 236 | 177 | . | . |
| Finland | 157 | SGI | ORIGIN 2000 300 MHz | 62.25 | CSC (Centre for Sientific Computing)Espoo | 1999 | Academic | 128 | 76.8 | 60032 | 9000 |
| France | 32 | Fujitsu | VPP5000/31 | 286.9 | Meteo-FranceToulouse | 1999 | Research Weather | 31 | 297.6 | . | . |
| France | 58 | Cray/SGI | T3E750 | 157.5 | Commissariat a l'Energie Atomique (CEA)Grenoble | 1997 | Research Energy | 300 | 225 | . | . |
| France | 65 | Fujitsu | VPP5000/15 | 139.8 | Commissariat a l'Energie Atomique (CEA)Grenoble | 1999 | Research Energy | 15 | 144 | . | . |
| France | 74 | NEC | SX-5/16A | 123.3 | CNRS/IDRISOrsay | 1999 | Academic | 16 | 128 | 99840 | 1340 |
| France | 78 | NEC | SX-5/16A | 123.3 | ONERA | 1999 | Research Aerospace | 16 | 128 | 99840 | 1340 |
| France | 81 | Cray/SGI | T3E | 117.9 | CNRS/IDRISOrsay | 1996 | Academic | 268 | 160.8 | . | . |
| France | 86 | IBM | SP PC604e 332 MHz | 113.1 | France Telecom | 1999 | Industry Telecomm | 368 | 244.2 | . | . |
| France | 98 | SGI | ORIGIN 2000 300 MHz | 101.4 | Centre Informatique National (CINES) | 1999 | Research | 256 | 153.6 | 86400 | 13248 |
| France | 103 | IBM | SP PC604e 332 MHz | 97.3 | Banque National Paris | 1999 | Industry Finance | 316 | 209.7 | . | . |
| France | 119 | Cray/SGI | T3E | 81.36 | Commissariat a l'Energie Atomique (CEA)Limeil | 1997 | Research | 188 | 112.8 | . | . |
| France | 128 | IBM | SP PC604e 332 MHz | 77.9 | Alcatel | 1999 | Industry Telecomm | 252 | 167.2 | . | . |
| France | 140 | IBM | SP Power3 222 MHz | 71 | CNUSCMontpellier | 1999 | Academic | 112 | 99.4 | . | . |
| France | 144 | IBM | SP P2SC 120 MHz | 67.8 | CNUSCMontpellier | 1999 | Academic | 207 | 99.36 | . | . |
| France | 182 | Fujitsu | VPP700/26E | 58 | Meteo-FranceToulouse | 1997 | Research Weather | 26 | 62.4 | 74880 | 5200 |
| France | 186 | IBM | SP P2SC 160 MHz | 57.24 | Oracle/IBM | 1998 | Industry Database | 128 | 81.92 | 39000 | 9180 |
| France | 193 | IBM | SP P2SC 160 MHz | 55.5 | Government | 1999 | Classified | 124 | 79.3 | . | . |
| France | 261 | IBM | SP PC604e 332 MHz | 49.6 | Government | 1999 | Classified | 158 | 104.89 | . | . |
| France | 341 | IBM | SP PC604e 332 MHz | 42.47 | Axone | 1999 | Industry | 134 | 88.97 | . | . |
| France | 347 | IBM | SP PC604e 332 MHz | 41.87 | Auchan | 1999 | Industry Database | 132 | 87.64 | . | . |
| France | 352 | IBM | SP PC604e 332 MHz | 41.2 | Alcatel | 1999 | Industry Telecomm | 130 | 86.3 | . | . |
| France | 360 | IBM | SP P2SC 120 MHz | 40.9 | Dassault Aviation | 1999 | Industry Aerospace | 122 | 58.56 | . | . |
| France | 362 | IBM | SP PC604e 332 MHz | 40.67 | Government | 1999 | Classified | 128 | 84.99 | 63000 | 12000 |
| France | 418 | NEC | SX-5/5B | 37.45 | IFP (Institute Francais du Petrole) Rueil-Malmaison | 1999 | Academic Geophysics | 5 | 40 | . | . |
| France | 425 | Cray/SGI | T932/24512 | 37.21 | Commissariat a l'Energie Atomique (CEA)Limeil | 1997 | Research | 24 | 43.5 | . | . |
| France | 439 | Sun | HPC 10000 400 MHz | 35.83 | OR TelematiqueParis | 1999 | Industry | 52 | 41.6 | 39936 | 3264 |
| France | 440 | NEC | SX-5S/10H3 | 35.72 | Renault | 1999 | Industry Automotive | 5 | 40 | . | . |
| France | 452 | IBM | SP PC604e 332 MHz | 34.4 | France Telecom | 1999 | Industry Telecomm | 108 | 71.7 | . | . |
| Germany | 9 | Cray/SGI | T3E1200 | 671.2 | Deutscher WetterdienstOffenbach | 1999 | Research Weather | 812 | 974.4 | . | . |
| Germany | 20 | Cray/SGI | T3E1200 | 447.8 | Forschungszentrum Juelich (FZJ)Juelich | 1999 | Research | 540 | 648 | 181440 | 17280 |
| Germany | 25 | Cray/SGI | T3E | 355.1 | Max-Planck-Gesellschaft MPI/IPPGarching | 1997 | Research | 812 | 487.2 | . | . |
| Germany | 27 | Cray/SGI | T3E900 | 341.3 | HWW/Universitaet StuttgartStuttgart | 1996 | Industry | 540 | 486 | . | . |
| Germany | 39 | Cray/SGI | T3E900 | 253.8 | ZIB/Konrad Zuse-Zentrum fuer InformationstechnikBerlin | 1999 | Academic | 404 | 363.6 | . | . |
| Germany | 42 | Cray/SGI | T3E | 234.9 | Forschungszentrum Juelich (FZJ)Juelich | 1996 | Research | 540 | 324 | 86400 | 14400 |
| Germany | 69 | IBM | SP PC604e 332 MHz | 128.9 | DeTeCSMBielefeld | 1999 | Industry Telecomm | 420 | 278.8 | . | . |
| Germany | 93 | Fujitsu | VPP700/52 | 106.3 | Leibniz RechenzentrumMuenchen | 1998 | Academic | 52 | 114.4 | . | . |
| Germany | 95 | IBM | SP PC604e 332 MHz | 105.2 | DeTeCSM | 1999 | Industry Telecomm | 342 | 227 | . | . |
| Germany | 96 | IBM | SP PC604e 332 MHz | 104.6 | IBM | 1999 | Vendor | 340 | 225.6 | . | . |
| Germany | 115 | IBM | SP PC604e 332 MHz | 82.8 | Thyssen | 1999 | Industry Mechanics | 268 | 177.8 | . | . |
| Germany | 123 | IBM | SP PC604e 332 MHz | 79.17 | BASFLudwigshafen | 1998 | Industry Chemistry | 256 | 169.9 | 89000 | 18000 |
| Germany | 124 | IBM | SP PC604e 332 MHz | 79.17 | Bayer AG | 1999 | Industry Chemistry | 256 | 169.9 | 89000 | 18000 |
| Germany | 125 | IBM | SP PC604e 332 MHz | 79.17 | Bayer AG | 1999 | Industry Chemistry | 256 | 169.9 | 89000 | 18000 |
| Germany | 129 | NEC | SX-4/40H2 | 77.2 | HWW/Universitaet StuttgartStuttgart | 1999 | Industry | 40 | 80 | . | . |
| Germany | 130 | IBM | SP Power3 200 MHz | 76.77 | Deutsche Telekom AGDarmstadt | 1999 | Industry Telecomm | 128 | 102 | 89000 | 11500 |
| Germany | 133 | IBM | SP PC604e 332 MHz | 75.5 | RWE | 1998 | Industry | 244 | 161.9 | . | . |
| Germany | 134 | IBM | SP PC604e 332 MHz | 74.9 | Deutsche Telekom AGDarmstadt | 1999 | Industry Telecomm | 242 | 160.6 | . | . |
| Germany | 151 | IBM | SP PC604e 332 MHz | 62.9 | Krupp Hoesch Info. | 1999 | Industry Database | 202 | 134 | . | . |
| Germany | 152 | IBM | SP Power3 200 MHz | 62.9 | Deutsche Telekom AGDarmstadt | 1999 | Industry Telecomm | 104 | 82.9 | . | . |
| Germany | 173 | IBM | SP PC604e 332 MHz | 58.7 | Deutsche BankFrankfurt | 1999 | Industry Finance | 188 | 124.7 | . | . |
| Germany | 179 | Cray/SGI | T3E | 58.28 | AWI (Alfred Wegener Institut)Bremerhaven | 1998 | Research | 134 | 80.4 | . | . |
| Germany | 194 | IBM | SP PC604e 332 MHz | 55.1 | Bayer AG | 1999 | Industry Chemistry | 176 | 116.8 | . | . |
| Germany | 197 | IBM | SP PC604e 332 MHz | 53.9 | BMW AGMuenchen | 1999 | Industry Automotive | 172 | 114.1 | . | . |
| Germany | 223 | IBM | SP PC604e 332 MHz | 51.4 | DeTeCSMBonn | 1999 | Industry In.Pr. Service | 164 | 108.8 | . | . |
| Germany | 231 | Hewlett-Packard | V2500/HyperPlex | 51.2 | Artmedia Berlin | 1999 | Industry | 64 | 112.64 | . | . |
| Germany | 235 | Hewlett-Packard | V2500/HyperPlex | 51.2 | Deutsche Telekom AGDarmstadt | 1999 | Industry Telecomm | 64 | 112.64 | . | . |
| Germany | 236 | Hewlett-Packard | V2500/HyperPlex | 51.2 | Deutsche Telekom AGDarmstadt | 1999 | Industry Telecomm | 64 | 112.64 | . | . |
| Germany | 237 | Hewlett-Packard | V2500/HyperPlex | 51.2 | Deutsche Telekom AGDarmstadt | 1999 | Industry Telecomm | 64 | 112.64 | . | . |
| Germany | 253 | IBM | SP PC604e 332 MHz | 50.8 | BASFLudwigshafen | 1999 | Industry Chemistry | 162 | 107.5 | . | . |
| Germany | 258 | Hewlett-Packard | N4000 440 MHz/HyperPlex | 50.4 | Government | 1999 | Classified | 80 | 140.8 | . | . |
| Germany | 278 | Hewlett-Packard | N4000 440 MHz/HyperPlex | 45.6 | VW (Volkswagen AG)Wolfsburg | 1999 | Industry Automotive | 64 | 112.64 | . | . |
| Germany | 282 | IBM | SP PC604e 332 MHz | 45.4 | Merck | 1999 | Industry Pharmaceutics | 144 | 95.6 | . | . |
| Germany | 289 | IBM | SP2/256 | 44.2 | Universitaet/Forschungszentrum KarlsruheKarlsruhe | 1997 | Academic | 256 | 68 | 53000 | 13500 |
| Germany | 290 | Hewlett-Packard | N4000 360 MHz/HyperPlex | 44.1 | Max-Planck-Gesellschaft MPI/Fritz-Haber-Institut Berlin | 1999 | Research | 80 | 115.2 | . | . |
| Germany | 305 | Sun | HPC 10000 400 MHz | 43.82 | CommerzbankFrankfurt | 1999 | Industry Finance | 64 | 51.2 | 39936 | 4032 |
| Germany | 306 | Sun | HPC 10000 400 MHz | 43.82 | CommerzbankKelsterbach | 1999 | Industry Finance | 64 | 51.2 | 39936 | 4032 |
| Germany | 308 | Sun | HPC 10000 400 MHz | 43.82 | Deutsche Telekom AGBamberg | 1999 | Industry Telecomm | 64 | 51.2 | 39936 | 4032 |
| Germany | 309 | Sun | HPC 10000 400 MHz | 43.82 | Deutsche Telekom AGBamberg | 1999 | Industry Telecomm | 64 | 51.2 | 39936 | 4032 |
| Germany | 338 | NEC | SX-4/22H5 | 42.6 | VW (Volkswagen AG)Wolfsburg | 1999 | Industry Automotive | 22 | 44 | . | . |
| Germany | 349 | IBM | SP Power3 222 MHz | 41.76 | Forschungszentrum KarlsruheKarlsruhe | 1999 | Academic | 64 | 56.8 | 53000 | 10000 |
| Germany | 351 | Fujitsu-Siemens | hpcLine Cluster | 41.45 | Universitaet Paderborn - PC2Paderborn | 1999 | Academic | 192 | 86.4 | 56480 | 11136 |
| Germany | 353 | IBM | SP PC604e 332 MHz | 41.2 | BASFLudwigshafen | 1999 | Industry Chemistry | 130 | 86.3 | . | . |
| Germany | 354 | IBM | SP PC604e 332 MHz | 41.2 | CompuNet | 1999 | Industry | 130 | 86.3 | . | . |
| Germany | 380 | IBM | SP PC604e 332 MHz | 40.05 | Lufthansa Frankfurt | 1999 | Industry Transportation | 126 | 83.66 | . | . |
| Germany | 390 | Hewlett-Packard | V2500/HyperPlex | 39.8 | Government | 1999 | Classified | 48 | 84.48 | . | . |
| Germany | 407 | Sun | HPC 10000 400 MHz | 38.53 | CommerzbankKelsterbach | 1999 | Industry Finance | 56 | 44.8 | 39936 | 3456 |
| Germany | 408 | Sun | HPC 10000 400 MHz | 38.53 | Mannesmann MobilfunkRatingen | 1999 | Industry Telecomm | 56 | 44.8 | 39936 | 3456 |
| Germany | 409 | Sun | HPC 10000 400 MHz | 38.53 | Mannesmann MobilfunkRatingen | 1999 | Industry Telecomm | 56 | 44.8 | 39936 | 3456 |
| Germany | 416 | Fujitsu | VPP5000/4 | 37.6 | Audi AGIngolstadt | 1999 | Industry Automotive | 4 | 38.4 | 60384 | 1584 |
| Germany | 429 | Sun | HPC 10000 400 MHz | 37.18 | Deutsche Telekom AGMunich | 1999 | Industry Telecomm | 54 | 43.2 | . | . |
| Germany | 432 | Fujitsu | VPP300/16E | 36.4 | Audi AGIngolstadt | 1998 | Industry Automotive | 16 | 38.4 | 57600 | 3520 |
| Germany | 453 | IBM | SP PC604e 332 MHz | 34.4 | Lidl & Schwartz | 1999 | Industry | 108 | 71.7 | . | . |
| Germany | 454 | Self-made | Parnass2 Cluster | 34.23 | University Bonn - Dep. of Applied MathematicsBonn | 1999 | Academic | 128 | 57.6 | 64224 | 7200 |
| Germany | 458 | Sun | HPC 10000 333 MHz | 34.17 | Bank Frankfurt | 1999 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 460 | Sun | HPC 10000 333 MHz | 34.17 | Commerzbank | 1998 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 461 | Sun | HPC 10000 333 MHz | 34.17 | Commerzbank | 1998 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 462 | Sun | HPC 10000 333 MHz | 34.17 | Commerzbank | 1998 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 463 | Sun | HPC 10000 333 MHz | 34.17 | Commerzbank | 1998 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 464 | Sun | HPC 10000 333 MHz | 34.17 | Commerzbank | 1998 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 465 | Sun | HPC 10000 333 MHz | 34.17 | CommerzbankFrankfurt | 1999 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 466 | Sun | HPC 10000 333 MHz | 34.17 | CommerzbankKelsterbach | 1999 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 467 | Sun | HPC 10000 333 MHz | 34.17 | Deutsche Morgan GrenfellFrankfurt | 1999 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Germany | 494 | Fujitsu | VPP300/16 | 34.1 | Universitaet/Forschungszentrum Karlsruhe Karlsruhe | 1997 | Academic | 16 | 35.2 | 59200 | 3520 |
| Italy | 47 | Cray/SGI | T3E1200 | 221.77 | CINECABologna | 1999 | Academic | 268 | 321.6 | . | . |
| Italy | 259 | IBM | SP PC604e 332 MHz | 50.2 | SOGEI | 1998 | Government | 160 | 106.2 | . | . |
| Italy | 260 | IBM | SP PC604e 332 MHz | 50.2 | Telecom Italia | 1998 | Industry Telecomm | 160 | 106.2 | . | . |
| Italy | 435 | Hewlett-Packard | V2500/HyperPlex | 36.1 | CILEAMilano | 1999 | Research | 40 | 70.4 | . | . |
| Italy | 449 | Sun | HPC 10000 400 MHz | 34.46 | Telecom Italia Mobile Torino | 1999 | Industry Telecomm | 50 | 40 | . | . |
| Italy | 482 | Sun | HPC 10000 333 MHz | 34.17 | Omnitel Pronto Italia Milano | 1999 | Industry Telecomm | 64 | 42.6 | 20352 | 3648 |
| Luxembourg | 427 | Sun | HPC 10000 400 MHz | 37.18 | Cedel BankGrande Duchesse | 1999 | Industry Finance | 54 | 43.2 | . | . |
| Luxembourg | 428 | Sun | HPC 10000 400 MHz | 37.18 | Cedel BankGrande Duchesse | 1999 | Industry Finance | 54 | 43.2 | . | . |
| Luxembourg | 450 | IBM | SP PC604e 332 MHz | 34.4 | Bourse Luxembourg | 1999 | Industry Finance | 108 | 71.7 | . | . |
| Luxembourg | 459 | Sun | HPC 10000 333 MHz | 34.17 | Cedel BankGrande Duchesse | 1999 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| Netherlands | 92 | IBM | SP PC604e 332 MHz | 107 | Philips Lightning | 1998 | Industry Electronics | 348 | 230.9 | . | . |
| Netherlands | 170 | NEC | SX-5/8B | 59.62 | National Aerospace Laboratory (NLR)Noordoostpolder | 1999 | Research Aerospace | 8 | 64 | . | . |
| Netherlands | 181 | Cray/SGI | T3E | 58.28 | Technical University Delft (TUD)Delft | 1997 | Academic | 134 | 80.4 | . | . |
| Netherlands | 220 | SGI | ORIGIN 2000 250 MHz | 51.44 | UNITE | 1999 | Academic | 128 | 64 | 61000 | 10000 |
| Netherlands | 280 | IBM | SP PC604e 332 MHz | 45.4 | APAC Hong Kong (EHU) | 1999 | Industry | 144 | 95.6 | . | . |
| Netherlands | 384 | Sun | HPC 10000 333 MHz Cluster | 39.87 | Dutchtone | 1999 | Industry Telecomm | 78 | 46.8 | . | . |
| Netherlands | 442 | IBM | SP P2SC 160 MHz | 35.54 | SARA (Stichting Academisch Rekencentrum)Amsterdam | 1998 | Research | 76 | 48.64 | . | . |
| Norway | 359 | Cray/SGI | T3E | 41.15 | Norwegian University of Science and TechnologyTrondheim | 1997 | Academic | 94 | 56.4 | . | . |
| Norway | 372 | SGI | ORIGIN 2000 | 40.25 | University of BergenBergen | 1997 | Academic | 128 | 49.92 | 60000 | 6000 |
| Sweden | 83 | Cray/SGI | T3E | 117.9 | National Supercomputer Centre (NSC)Linkoping | 1997 | Academic | 268 | 160.8 | . | . |
| Sweden | 147 | IBM | SP Power3 200 MHz | 65.2 | VolvoGothenberg | 1999 | Industry Automotive | 108 | 86.1 | . | . |
| Sweden | 148 | IBM | SP P2SC 160 MHz | 64.8 | KTH - Royal Institute of TechnologyStockholm | 1998 | Research | 146 | 93.44 | . | . |
| Sweden | 250 | Hewlett-Packard | V2500/HyperPlex | 51.2 | VolvoGothenberg | 1999 | Industry Automotive | 64 | 112.64 | . | . |
| Sweden | 273 | SGI | ORIGIN 2000 300 MHz | 47.7 | Lunds Tekniska Hvgskola | 1999 | Academic | 100 | 60 | . | . |
| Sweden | 350 | IBM | SP Power3 222 MHz | 41.76 | KTH - Royal Institute of TechnologyStockholm | 1999 | Research | 64 | 56.8 | 53000 | 10000 |
| Sweden | 444 | SGI | ORIGIN 2000 | 34.7 | Chalmers University of TechnologyGoteborg | 1999 | Academic | 110 | 42.9 | . | . |
| Switzerland | 131 | IBM | SP Power3 200 MHz | 76.77 | IBM Research | 1999 | Research | 128 | 102 | 89000 | 11500 |
| Switzerland | 199 | IBM | SP PC604e 332 MHz | 52 | Deutsche Bank | 1999 | Industry Finance | 166 | 110.1 | . | . |
| Switzerland | 281 | IBM | SP PC604e 332 MHz | 45.4 | EVE Bank | 1999 | Industry Finance | 144 | 95.6 | . | . |
| Switzerland | 284 | IBM | SP PC604e 332 MHz | 45.4 | UBS AG | 1999 | Industry Finance | 144 | 95.6 | . | . |
| Switzerland | 433 | IBM | SP PC604e 332 MHz | 36.33 | Atraxis AG | 1999 | Industry | 114 | 75.69 | . | . |
| UK | 11 | Cray/SGI | T3E900 | 552.92 | United Kingdom Meteorological OfficeBracknell | 1997 | Research Weather | 876 | 788.4 | . | . |
| UK | 13 | Cray/SGI | T3E1200 | 526.6 | United Kingdom Meteorological OfficeBracknell | 1999 | Research Weather | 636 | 763.2 | . | . |
| UK | 14 | Cray/SGI | T3E1200 | 509.9 | CSAR at the University of ManchesterManchester | 1998 | Academic | 612 | 734.4 | . | . |
| UK | 49 | Cray/SGI | T3E900 | 218.9 | University of EdinburghEdinburgh | 1997 | Academic | 348 | 313.2 | . | . |
| UK | 50 | Fujitsu | VPP700/116 | 213 | ECMWFReading | 1997 | Research Weather | 116 | 255.2 | 111360 | 18560 |
| UK | 64 | IBM | SP PC604e 332 MHz | 143.3 | IBM | 1999 | Vendor | 468 | 310.6 | . | . |
| UK | 88 | IBM | SP P2SC 160 MHz | 109.9 | Atomic Weapons Establishment Aldermaston | 1999 | Classified | 252 | 161.2 | . | . |
| UK | 102 | Fujitsu | VPP700/48E | 97.5 | ECMWFReading | 1998 | Research Weather | 48 | 115.2 | . | . |
| UK | 107 | IBM | SP PC604e 332 MHz | 93.1 | British Airways | 1999 | Industry Transportation | 302 | 200.4 | . | . |
| UK | 113 | IBM | SP P2SC 160 MHz | 83.5 | Western GeophysicalLondon | 1999 | Industry Geophysics | 190 | 121.6 | . | . |
| UK | 127 | IBM | SP P2SC 160 MHz | 78.4 | Government | 1999 | Classified | 178 | 113.9 | . | . |
| UK | 177 | Hitachi | SR2201/256 | 58.68 | University of CambridgeCambridge | 1998 | Academic | 256 | 77 | 77760 | 13440 |
| UK | 184 | IBM | SP PC604e 332 MHz | 57.51 | ISSC | 1999 | Industry | 184 | 122.13 | . | . |
| UK | 192 | IBM | SP Power3 200 MHz | 56 | Government | 1998 | Classified | 92 | 73.4 | . | . |
| UK | 201 | SGI | ORIGIN 2000 250 MHz | 51.44 | Computer Sciences Corporation (CSC)Farnborough | 1998 | Industry Aerospace | 128 | 64 | 61000 | 10000 |
| UK | 275 | IBM | SP PC604e 332 MHz | 46.6 | Sony Data | 1999 | Industry | 148 | 98.25 | . | . |
| UK | 287 | IBM | SP PC604e 332 MHz | 44.27 | Atomic Weapons Establishment Aldermaston | 1998 | Classified | 140 | 92.95 | . | . |
| UK | 323 | Sun | HPC 10000 400 MHz | 43.82 | Prudential InsuranceDudley | 1999 | Industry Database | 64 | 51.2 | 39936 | 4032 |
| UK | 333 | IBM | SP PC604e 332 MHz | 43.67 | Deutsche Bank | 1998 | Industry Finance | 138 | 91.62 | . | . |
| UK | 346 | IBM | SP Power3 200 MHz | 42.2 | Exeter UniversityExeter | 1998 | Academic | 68 | 54.3 | . | . |
| UK | 417 | IBM | SP PC604e 332 MHz | 37.57 | Barclays Bank | 1998 | Industry Finance | 118 | 78.34 | . | . |
| UK | 430 | Sun | HPC 10000 400 MHz | 37.18 | Littlewoods Liverpool | 1999 | Industry Database | 54 | 43.2 | . | . |
| UK | 438 | Sun | HPC 10000 400 MHz | 35.83 | NewLook Dorset | 1999 | Industry Database | 52 | 41.6 | 39936 | 3264 |
| UK | 468 | Sun | HPC 10000 333 MHz | 34.17 | Deutsche Morgan GrenfellLondon | 1998 | Industry Finance | 64 | 42.6 | 20352 | 3648 |
| UK | 469 | Sun | HPC 10000 333 MHz | 34.17 | Deutsche Morgan GrenfellLondon | 1998 | Industry Finance | 64 | 42.6 | 20352 | 3648 |