List of founders
| Name | Founding | Group | Location | Bells | Bells Dated | Rings |
|---|---|---|---|---|---|---|
| P I Olovyanishnikova's Sons | Yaroslavl | 1 | 1899 | 1 | ||
| Robert Orrell | 1586–1621 | Wigan | 6 | 1588–1621 | 5 | |
| Osborn & Arnold | 1772–1778 | St Neots | 19 | 1773–1778 | 11 | |
| Osborn & Dobson | 1803–1806 | 18 | 1803–1808 | 6 | ||
| Thomas Osborn | 1779–1806 | St Neots, Downham Market | 259 | 1779–1802 | 100 | |
| Cornelius Ouderogge | 1637–1672 | Non UK | Rotterdam | 1 | 1657 | 1 |
| John Owen | 1538–1553 | London | London | 1 | 1553 | 1 |
| Samuel Owen | 1596–1600 | London | London | 2 | 1596–1600 | 2 |
| P & Co | 1774 | ? South Normanton ? | 1 | 1774 | 1 | |
| P W | 1350 | 2 | 1350–1370 | 2 | ||
| G & F Paccard | 1796–1953 | Non UK | Annecy, France | 18 | 1891–2025 | 7 |
| Lester & Pack | 1752–1769 | Whitechapel | Whitechapel | 325 | 1752–1769 | 180 |
| John Packer | 1692–1705 | Bristol | Bristol | 3 | 1692–1711 | 3 |
| William Packer (Newcastle) | Newcastle-upon-Tyne | 1 | 1729 | 1 | ||
| John I Palmar (Canterbury) | 1635–1656 | Kent | Canterbury | 7 | 1637–1641 | 4 |
| John II Palmar (Canterbury) | 1647–1676 | Kent | Canterbury | 7 | 1651–1656 | 6 |
| John Palmer (Gloucester) | 1621–1677 | Gloucester | 1 | 1621 | 1 | |
| Thomas Palmer | 1641–1676 | Kent | Canterbury | 13 | 1650–1670 | 9 |
| Thomas II Palmer | 1676 | Kent | Canterbury | 1 | 1676 | 1 |
| Charles Pannell & Co | 1820–1856 | West Country | Cullompton | 20 | 1847–1855 | 8 |
| Pannell (generic) | Cullompton | 2 | 1838 | 2 | ||
| J Pannell | 2 | 1828 | 2 | |||
| W Pannell & Son | 2 | 1835–1845 | 2 | |||
| William Pannell | 1820–1851 | West Country | Cullompton, Exeter | 12 | 1821–1843 | 12 |
| William & Charles Pannell | 1828–1841 | West Country | Cullompton | 13 | 1828–1846 | 12 |
| Robert Patrick & Jacob Warner | 1786 | Warner | Cripplegate | 6 | 1786 | 1 |
| Patrick & Osborn | 1782 | London | London | 15 | 1782 | 2 |
| Robert Patrick | 1782–1787 | London | London | 13 | 1783–1786 | 6 |
| John Peele | 1703–1708 | London | London | 1 | 1703 | 1 |
| Aaron Peever | 1724–1746 | Kirkoswold | 4 | 1724–1746 | 3 | |
| Henry Penn | 1703–1729 | Peterborough | 128 | 1700–1729 | 74 | |
| Pennington (generic) | Pennington | 2 | 1693–1700 | 2 | ||
| Christopher I Pennington | 1668–1689 | Pennington | Bodmin | 6 | 1664–1687 | 6 |
| Christopher II Pennington | 1691–1722 | Pennington | Lezant | 14 | 1691–1715 | 6 |
| Christopher II & John II [C] Pennington | 1717–1720 | Pennington | Lezant | 8 | 1717–1720 | 3 |
| Christopher III Pennington | 1722–1759 | Pennington | Lezant | 27 | 1722–1758 | 16 |
| Christopher III & John II [C] Pennington | 1722–1729 | Pennington | Lezant | 12 | 1722–1729 | 5 |
| Christopher III & John III [C] Pennington | 1748 | Pennington | Lezant | 3 | 1748 | 1 |
| Christopher IV & John IV Pennington | 1790–1798 | Pennington | Stoke Climsland | 36 | 1790–1797 | 12 |
| Fitzanthony I Pennington | 1656–1676 | Pennington | Lezant | 3 | 1656–1658 | 3 |
| Fitzanthony II Pennington | 1756–1768 | Pennington | Lezant | 16 | 1758–1761 | 5 |
| John I Pennington ('IP') | 1623–1665 | Pennington | Monmouth | 41 | 1623–1665 | 32 |
| John I [B] Pennington | 1640 | Pennington | Bodmin | 1 | 1640 | 1 |
| John I [T] Pennington | 1663–1706 | Pennington | Tavistock | 8 | 1668–1690 | 8 |
| John I [T] & John II [T] Pennington | 1697–1706 | Pennington | Tavistock | 2 | 1697–1706 | 2 |
| John I [T] Pennington & John Stadler | 1698 | Pennington | 4 | 1698 | 1 | |
| John II Pennington ('IP') | 1665–1682 | Pennington | Monmouth | 25 | 1669–1682 | 19 |
| John II [C] Pennington | 1713–1739 | Pennington | Lezant | 34 | 1713–1739 | 18 |
| John II [T] Pennington | 1697–1709 | Pennington | Tavistock | 1 | 1709 | 1 |
| John III [C] & Fitzantony II Pennington | 1765–1767 | Pennington | Lezant | 19 | 1765–1767 | 8 |