| Hp | Performance Center | 1 |
| Sgi | Performance Co-pilot | 5 |
| Capasystems | Performance Guard | 1 |
| Hp | Performance Insight | 6 |
| Bmc | Performance Manager | 2 |
| Hp | Performance Manager | 1 |
| Bmc | Performance Predictor For Servers | 1 |
| Philips | Performancebridge Focal Point | 4 |
| Passmark | Performancetest | 0 |
| Joomla | Performs Component | 1 |
| Perfree | Perfreeblog | 4 |
| Perfsonar | Perfsonar | 4 |
| Jenkins | Periodic Backup | 1 |
| Medhost | Perioperative Information Management System | 1 |
| Nortel | Periphonics | 1 |
| Larry Wall | Perl | 50 |
| Perl | Perl | 17 |
| Pcre | Perl-compatible Regular Expression Library | 1 |
| Perl-httpd | Perl-httpd | 1 |
| Perl-mailtools | Perl-mailtools | 1 |
| Hal Networks | Perl Cgi Cart | 1 |
| Pcre | Perl Compatible Regular Expression Library | 16 |
| Spencer Christensen | Perl Web Server | 1 |
| Perlbal | Perlbal | 2 |
| Perlblog | Perlblog | 3 |
| Perlbot | Perlbot | 2 |
| Acme Labs | Perlcal | 2 |
| Logicnow | Perldesk | 3 |
| Scriptsolutions | Perldiver | 2 |
| Perlmailer | Perlmailer | 1 |
| Perlpodder | Perlpodder | 2 |
| Arpanet | Perlshop | 1 |
| Perlspeak Project | Perlspeak | 0 |
| Perltidy Project | Perltidy | 2 |
| Homepage Decorator | Perltreebbs | 0 |
| Debian | Perm | 1 |
| Maciej Bis | Permalink Manager Lite | 5 |
| Unknown | Permalink Manager Lite | 5 |
| Mbis | Permalink Manager Lite | 5 |
| Maciej Bis | Permalink Manager Pro | 1 |
| YAS Global Team | Permalinks Customizer | 2 |
| Wordpress | Permalinks Migration Plugin | 1 |
| Persian Car Cms Project | Persian Car Cms | 1 |
| Persian Vip Download Script Project | Persian Vip Download Script | 1 |
| Woocommerce | Persian Woocommerce Sms | 1 |
| Persism Cms | Persism Cms | 1 |
| Utarit Information Technologies | Persolus | 1 |
| IBM | Person Communications | 1 |
| Mozilla | Persona | 0 |
| Lenovo | Personal Cloud Storage A1 | 5 |
| Lenovo | Personal Cloud Storage T1 | 5 |
| Lenovo | Personal Cloud Storage T2 | 5 |
| Lenovo | Personal Cloud Storage T2Pro | 5 |
| Lenovo | Personal Cloud Storage X1 | 5 |
| Unknown | Personal Dictionary | 1 |
| Personal .net Portal | Personal .net Portal | 1 |
| Cisco | Personal Assistant | 4 |
| Personal Blog Cms Project | Personal Blog Cms | 1 |
| Seagate | Personal Cloud Firmware | 2 |
| Ibm | Personal Communications | 2 |
| Websense | Personal Email Manager | 2 |
| Computer Associates | Personal Firewall | 20 |
| Filseclab | Personal Firewall | 20 |
| Kerio | Personal Firewall | 20 |
| Online Armor | Personal Firewall | 20 |
| Tallemu | Personal Firewall | 20 |
| Kerio | Personal Firewall 2 | 2 |
| Ca | Personal Firewall 2007 | 1 |
| Ca | Personal Firewall 2008 | 1 |
| Kingsoft | Personal Firewall 9 | 1 |
| Eset | Personal Firewall Ndis Filter | 0 |
| Mcafee | Personal Firewall Plus | 2 |
| Cooolsoft | Personal Ftp Server | 3 |
| Phlatline | Personal Information Manager | 5 |
| Personal-management-system | Personal Management System | 1 |
| Adtran | Personal Phone Manager | 3 |
| Uiga | Personal Portal | 1 |
| Pgp | Personal Privacy | 3 |
| Pgp | Personal Security | 3 |
| Personal Video Collection Script Project | Personal Video Collection Script | 1 |
| Pwsdashboard | Personal Weather Station Dashboard | 1 |
| Microsoft | Personal Web Server | 5 |
| Apple | Personal Web Sharing | 2 |
| Netscape | Personalization Engine | 1 |
| N-MEDIA | Personalized WooCommerce Cart Page | 1 |
| Personifycorp | Personify360 | 1 |
| Personify | Personify360 E-business | 2 |
| TAIWAN SECOM CO., LTD., | Personnel Attendance Management System | 1 |
| TAIWAN SECOM CO., LTD. | Personnel Attendance System | 0 |
| SourceCodester | Personnel Property Equipment System | 2 |
| BMA | Personnel Tracking System | 1 |
| Le-yan Co., Ltd. | Personnel And Salary Management System | 1 |
| Personnummer | Personnummer | 1 |
| Resolver | Perspective | 1 |
| Actian | Pervasive Psql | 1 |
| Clearfishing | Pesca De Carpa Lite | 0 |
| Pescms | Pescms Team | 4 |
| Clearfishing | Pescuit Crap Lite | 0 |
| Pesign Project | Pesign | 2 |
| Winitor | Pestudio | 1 |
