| P | J & P |
| Padley | Adam Padley |
| Padley | Padley & Price Ltd |
| Padley | Thomas Padley & Company |
| Padley | William Padley & Son Ltd |
| Page | William Page & Partners Ltd |
| Paget | Paget & Senior Ltd |
| Palmer | Donald Ashford Palmer |
| Palmer | Palmer Brothers |
| Paramore | Ellis, Son & Paramore Ltd |
| Parker | E. Parker & Sons |
| Parker | Ebenezer Parker & Sons |
| Parker | Elihu Parker |
| Parker | Joseph Parker & Sons |
| Parker | Parker & Brown |
| Parker | Parker & Linley |
| Parker | Parker Brothers |
| Parker | Parkin, Parker, Clough & Potts |
| Parker | Samuel Parker & Son |
| Parker | William Parker |
| Parker | William Parker |
| Parkes | J. Parkes |
| Parkin | A. Parkin & Sons |
| Parkin | Arthur Parkin |
| Parkin | Charles Parkin |
| Parkin | E. H. Parkin & Company Ltd |
| Parkin | Edward Parkin & Son |
| Parkin | John Parkin & Company |
| Parkin | Joseph Parkin |
| Parkin | Josephus Parkin |
| Parkin | Parkin & Marshall / William Parkin & Company Ltd |
| Parkin | Parkin Brothers |
| Parkin | Parkin, Parker, Clough & Potts |
| Parkin | Richard Parkin & Son |
| Parkin | Staniforth, Parkin & Company |
| Parkin | T. R. Parkin & Son |
| Parkin | Taylor, Parkin & Company |
| Parkin | Thomas Parkin |
| Parkin | W. H. Parkin & Sons |
| Parkin | William Parkin & Company Ltd |
| Parkin | William Parkin & Sons |
| Parkinson | James Parkinson |
| Parkinson | Parkinson, Drabble & Company |
| Parry | Parry & Son |
| Parsisson | Parsisson & Storr |
| Pasley | Richard F. Pasley |
| Pass | Ann Pass |
| Pass | John Pass |
| Pass | John Watson, Pass & Company / John Watson & Son |
| Pass | Samuel Pass |
| Patten | George Patten / Hannah Patten & Son |
| Payne | H. Payne & Sons |
| Payne | Payne Ward & Sons |
| Peace | Ibbotson, Peace & Company / W. K. & C. Peace Ltd |
| Peace | J. H. Peace & Company |
| Peace | Peace, Sons & Varley (1923) Ltd |
| Peace | Samuel Peace |
| Peace | W. K. & C. Peace Ltd |
| Peacock | John Thornton Peacock |
| Pearce | Edward Pearce & Company |
| Pearce | Henry Robert Pearce |
| Pearce | John Pearce & Company |
| Pearce | Wardrobe & Pearce / H. R. Pearce & Son Ltd |
| Pearson | Hallas, Flower & Pearson |
| Pearson | Pearson & Jesmond |
| Pearson | Pearson & Winks |
| Pearson | Pearson's |
| Pearson | S. Pearson & Company Ltd |
| Pease | Stacey, Pease & Company |
| Peckett | Hubert C. Peckett |
| Peckett | Thomas Peckett |
| Peerless | Peerless Plate Manufacture |
| Pendleton | Pendleton & Dix |
| Perigo | John Perigo / Perigo Brothers (Sheffield) Ltd |
| Perkington | Perkington & Deakin |
| Perkingtons | Perkingtons |
| Perkins | Ewart Perkins & Co Ltd |
| Perkinton | Joshua and William Perkinton (Perkington) |
| Perkinton | Perkinton Brothers / George Perkinton |
| Petersen | Theodor Wilhelm Petersen & Company |
| Petfield | Petfield, Harrison & Wilson |
| Petty | John Petty & Sons Ltd |
| Phins | Phins Ltd, Dundee |
| Pickslay | Charles Pickslay |
| Pickslay | Green, Pickslay and Appleby |
| Pickslay | Pickslay, Appleby and Bertram |
| Pike | Bowman & Pike Ltd |
| Pilch | W. Fuller Pilch & Co |
| Pilley | Hepworth, Pilley & Company |
| Pinder | Edward Pinder |
| Pinder | James Pinder & Company Ltd |
| Pinder | Pinder Brothers Ltd |
| Pinking | Pinking Shear Company Ltd |
| Pitchford | J. & W. Pitchford |
| Pitt | Wilson & Pitt |
| Pitts | Charles Pitts / Pitts Brothers |
| Pitts | E. Pitts & Co |
| Plate | Sheffield Plate Manufacturing Co. |
| Platts | Charles Platts |
| Platts | George Platts & Son Ltd |
| Platts | Henry Platts |
| Platts | John Platts |
| Pleasance | Pleasance & Beal |
| PML | PML Plating Ltd |
| Poles | Furniss, Poles & Turner |
| Ponsford | W. Ponsford & Sons |
| Porter | Rivelin & Porter |
| Poston | A. E. Poston & Co Ltd |
| Potter | J. H. Potter & Sons Ltd |
| Potts | Parkin, Parker, Clough & Potts |
| Potts | Potts, Baxter & Brown |
| Power | Celnik & Power Ltd |
| Poynton | John & Thomas Poynton |
| Practical | Practical Cutlery Co |
| Prescott | Prescott & Milner |
| Preston | George P. Preston & Sons |
| Price | Ambler, Price & Cole (Amprico) |
| Price | Arthur Price & Company Ltd |
| Price | Arthur Price of England |
| Price | Dewsnap & Price |
| Price | Joseph Price |
| Priestley | Priestley & Moore Ltd |
| Priestman | Singleton & Priestman Ltd |
| Primus | Primus Cutlery Manufacturing Co |
| Pritchard | Pritchard & Wood |
| Proctor | Charles and Luke Proctor |
| Prosser | Harrison & Company / Prosser & Company (Sheffield) Ltd |
| Prosser | Prosser & Co (Sheffield) Ltd |
| Providence | Providence Cutlery Co |
| Pryor | Edward Pryor & Son Ltd |
| Pryor | John Pryor |
| Pryor | Michael Pryor |
| Pryor | Pryor Brothers |
| Pryor | Pryor, Tyzack & Company |
| Pryor | Thomas Pryor / George Pryor |
| Pryor | Tricket, Haslehurst, Whiteley, & Pryor |
| Purdy | Joshua Purdy |
