| Prefix | Organization | Purpose | Web Site | Contact | Registered |
|---|---|---|---|---|---|
| P | Pythoness Software | PSetting; Toolkit | www.pythoness.com | Blake Schwendiman | 08-May-1998 |
| PA | devSoft Inc. | Pager Anywhere; Comms | www.dev-soft.com/ | Anli | 04-Aug-1998 |
| PADA | PA-data, Orebro lans Landsting | Reserved | Peter Kind | 17-Aug-2000 | |
| PAS | The Solution Works | Reserved; Reserved | www.solutionworks.co.uk | Andrew McKelvie | 01-Feb-1999 |
| PAT | Patrick Hackl | Patrick Hackl | 14-Apr-1999 | ||
| PB | Paul Becker | Reserved; Reserved | members.primary.net/~pebecker | Paul Becker | 01-Feb-1999 |
| PC | Poliedro Informática | www.poliedro.com.br | Kelson da Costa Medeiros | 14-Apr-1999 | |
| PCC | Planet Computer Contractors Ltd | Reserved | David Knight | 03-Sep-1999 | |
| PCL | PCL Systems | PCL Advanced Controls Package; Collection | www.netspace.net.au/~jprice | James Price | 19-Mar-1999 |
| PCON | pCon Software | www.pconsoft.com | Thomas Phaneuf | 26-May-2000 | |
| PCS | Reserved | Paul Sureddin | 09-Feb-2000 | ||
| PCW | PCWare | www.pc-ware.com | Paul Czywczynski | 13-Apr-1999 | |
| PD | Plass Data Software | Reserved; Reserved | Benny Bech | 13-Jun-1998 | |
| PDI | Prairie Development, Inc. | Reserved; Reserved | www.prairiedev.com | Ned Boddie | 13-May-1998 |
| pdp | Pradeep Prabhakar | 07-Jul-2000 | |||
| PDQ | PDQ Suite | www.oisin.demon.co.uk | Noel Cosgrave | 24-Jan-2000 | |
| PDQ | Blennerville | PDQ Suite | www.blennerville.com | Noel Cosgrave | 06-Sep-2000 |
| PDT | Virtual Velocity | BoRiS Ctrls, Tools, Dialogs, M | www.virtualvelocity.com | Phillip du Toit aka. BoRiS | 02-Jun-1999 |
| PDT | Grebar Systems Inc. | PrintDAT! | www.grebarsys.com | Barry McClure | 12-Jul-1999 |
| pdx | Python | Puthon DirectX Components | thunder.prohosting.com/~pytho/ | Python | 21-Jul-2000 |
| PED | Pedagogisk Dataforum | Reserved | peddat.no | Knut Eikenes | 10-Aug-1999 |
| Peg | Peganza | In Development | www.peganza.com | Christer Bergstrom | 04-Aug-2003 |
| PERF | PerfUtils Components | www.aldyn.ru/ | Alexey Dynnikov | 28-Jul-1999 | |
| PET | Progressive Educational Tools Ltd. | Chris Sexton | 13-Apr-1999 | ||
| PF | Fe Software and Development | Pim Flash | www.fesoft.com/pimflash | Gabriel Forner | 11-Sep-1999 |
| PFX | preFX Development | Reserved; Reserved | porchlite.com | Michael Chavers | 01-Feb-1999 |
| pFX | preFX Software Development | www.porchlite.com | Michael C. Chavers | 16-Dec-1999 | |
| PG | Pragena | Reserved | pragena.8m.com | Khashayar Sadjadi | 16-Aug-1999 |
| PGP | DIKTYO Inf. | Petros Gavrielides | 24-Jun-1999 | ||
| PH | Reserved | Christian Mautendorfer | 02-Sep-1999 | ||
| PhoInfo | Phoenix Informática Ltda | Reserved | www.assessoria.com.br | Vicente Gerbasi Neto | 23-May-2000 |
| Pi | Kever-IT | Plan-IT | www.kever.com | Kees Vermeulen | 27-Apr-2000 |
| pi | Programmed Integration | piReporter, piKeyPass | p-integration.tripod.com | Colin Meeks | 14-Jul-2000 |
| PIN | N/A | Josep Maria Pinyol Fontseca | 22-Apr-1999 | ||
| Ping | Peter Ingham | Peter Ingham | 26-Feb-2004 | ||
| PJ | PJSoft | TPJDropFiles etc | homepages.tesco.net/~p.d.johnson | Peter Johnson | 11-Dec-1999 |
| PJ | DelphiDabbler | All components | www.delphidabbler.com/ | Peter Johnson | 23-May-2005 |
| pk | www.peterki.d.com | Peter Kind | 30-May-2000 | ||
| PK | Reserved | Peter Kind | 17-Aug-2000 | ||
| PL | Yurteh Ltd. | Reserved; Reserved | Alex Plas | 19-Mar-1999 | |
| PLB | Whizz Works (S) Pte Ltd | Plan B accounting system | lassie.finalfiler.com | Peck Kim Han | 10-Apr-2000 |
| PLF | Pilif's Freeware | www.sen.ch/pilif/ | Philip Hofstetter | 07-Apr-1999 | |
| PM | Porpoise Media | TPMMutiny | www.earthcamp.com | Greg Bishop | 13-Aug-2000 |
| PMC | Reserved | Peter McMinn | 22-May-1999 | ||
| PnP | Pick 'n Pay | PicknPay Package | www.picknpay.com | Phillip du Toit | 02-Jun-1999 |
| PO | reserved | Phil Osborne | 20-Oct-1999 | ||
| PP | Digital Metaphors | ReportBuilder; Reporting | www.digital-metaphors.com | Tom Ollar | 10-Jul-1998 |
| PP | Various | www.philpem.btinternet.co.uk/ | P. Pemberton | 29-Jan-2002 | |
| PPS | Professional Practice Systems, Inc. | Reserved | Scott Bussinger | 07-Apr-1999 | |
| PPW | Peopleware | PPWLib | www.peopleware.be | Stefaan Lesage | 18-Apr-2000 |
| PQX | Paritech | Paritech Analytics Extensions | www.paritech.com.au | Paul Klink | 16-Sep-2001 |
| PR | ProtoTypical | Reserved; Reserved | Sandy McCourt | 01-Feb-1999 | |
| pr | Constantia Rekenaars | prQBF | John le Roux | 07-Nov-1999 | |
| PRA | Pracom Pty. Ltd. | Reseved; Reserved | www.pracom.net | Don Robinson | 01-Feb-1999 |
| PRO | Dmitry G. Barabash | Pro VCL Extensions Library; ToolKit | www.farlep.net/~dgb | Dmitry G. Barabash | 30-Dec-1998 |
| PRO | Prometrics Software Limited | many | www.prometrics.co.uk | Phil Shrimpton | 16-Jun-1999 |
| PS | Pagewell Software | Reserved | www.pagewell.com | Satya | 04-Sep-1999 |
| PS | Baltic Solutions | Power Spark - Plugin System | www.balticsolutions.com | Gintaras Pikelis | 12-Sep-1999 |
| ps | PSOFT | Barcode studio, TpsBarcodeComponent, TpsBarcode, IpsBarcodeInterface | www.barcode-software.eu | Peter Cirip | 27-Jul-2013 |
| psc | PymeSoft Perú | PymeSoft Component | www.pagina.de/pymesoft | Jose Hurtado Miranda | 21-Jun-1999 |
| PSD | Personal Systems Design S.L. | Reserved; Reserved | Alexander Hristov | 01-Feb-1999 | |
| PSF | (Personal) | reserved | members.shaw.ca/cfarr/index.html | Paul S. Farr | 10-Mar-2004 |
| PSI | PsiTek Limited | Reserved; Reserved | www.psitek.co.uk | Kashif Saeed | 01-Feb-1999 |
| PsiCC | Psi Computer Consultants Pty Ltd | Reserved | www.psitechweb.com | Michael Michalak | 30-Aug-2000 |
| PSL | Pacifica Systems Ltd | various | Mr M Hankey | 22-Sep-1999 | |
| PSP | Pascal Server Pages Project | Pascal Server Pages | www.davesworld.net/~mjohnson/PSP.html | Mike Johnson | 21-Oct-1999 |
| PSS | Portable Solutions | Reserved; Reserved | ww.portablesolutions.com | Mark Small | 01-Feb-1999 |
| PT | Plasmatech Software Design | Shell Control Pack; Toolkit Windows | plasmatech.com | Tim Knipe | 04-May-1998 |
| pte | Power Tech Express Inc. | Reserved | Doug Hill | 18-Nov-1999 | |
| PUGDOG | PUGDOG Enterprises, Inc. | Reserved; Reserved | 01-Feb-1999 | ||
| pv | Provolution | Various in development | www.prolaw.com | Bill Bice | 17-May-2000 |
| PVL | Peter van Lonkhuyzen | Reserved; Reserved | www.global.co.za/~peterv | Peter van Lonkhuyzen | 12-May-1998 |
| pw | ProWorks | Flipper Controls (CAD, Graph, | www.proworks.com | Jason Prothero | 18-Sep-2000 |
| PWC | ProWare Computing | FullBack; Backup | www.ProWareComputing.com | Dyane | 01-Feb-1999 |
| PX | Femte Gear | PixelPack; Graphics | www.femte-gear.dk | Peter Strand | 04-May-1998 |
| Px | Penad Pensions | Penad Pensions | www.penad.ca | Wayne Mceachren | 08-Sep-1999 |
| PX | PARADOXOS informatique | users.skynet.be/paradoxos | Ahmad HAOUILI | 18-Aug-2000 | |
| pxc | pixelconcept GmbH | www.pixelconcept.de/ | Jens Rieck | 08-Feb-2000 | |
| PXM | Phoenix Mail Developers Group | Phoenix Mail Components | www.pobox.com/~touri/phoenixdev/ | Jon Robertson | 24-Jul-1999 |
| Py | reserved | Bernd Schneider | 24-Sep-2000 | ||
| Pz | Prizm | Martin Lanza | 17-May-2000 |