| Nadin | Alfred Nadin |
| Nash | Richard Nash |
| Naylor | A. Boswell, Son & Naylor Limited |
| Naylor | George Naylor and Co |
| Naylor | Martin Brothers & Naylor |
| Naylor | Naylor & Sanderson (Sanderson Brothers & Company) |
| Naylor | Samuel Naylor |
| Naylor | Samuel Naylor |
| Naylor | Thomas Naylor |
| Naylor | Turner, Naylor & Company Ltd |
| Neal | John Neal |
| Needham | Charles Needham |
| Needham | Edwin H. Needham & Company |
| Needham | Hawksley, Needham & Company |
| Needham | John Needham |
| Needham | Needham Brothers |
| Needham | Needham Brothers Ltd |
| Needham | Needham, Veall & Tyzack Ltd |
| Needham | Needham, Vincent & Co |
| Needham | Robert M. Needham |
| Needham | William Needham |
| Neepsend | Neepsend Steel & Tool Corporation Ltd |
| Neill | James Neill & Company (Sheffield) Ltd |
| Nelson | Samuel Nelson |
| Newbould | Albert Newbould |
| Newbould | George Newbould |
| Newbould | George Newbould & Sons |
| Newbould | Holy, Newbould & Suckley |
| Newbould | John Newbould & Company |
| Newbould | Newbould Brothers & Dickenson |
| Newbould | Sanderson Bros & Newbould |
| Newbould | Standfield, Newbould & Baildon |
| Newbould | Thomas, William & George Newbould |
| Newell | E. Newell & Company |
| Newton | Edward Newton & Company |
| Newton | Francis Newton & Sons Ltd |
| Newton | Greaves and Newton |
| Newton | John Newton & Company |
| Newton | Mary Newton & Sons |
| Newton | Middleton, Newton & Middleton |
| Newton | Sporle & Newton |
| Nicholson | Austin Nicholson |
| Nicholson | Frank Nicholson & Son |
| Nicholson | Gainsford, Fenton & Nicholson |
| Nicholson | Henry Nicholson |
| Nicholson | John Clayton Nicholson |
| Nicholson | John Nicholson |
| Nicholson | John Nicholson & Sons |
| Nicholson | Matthew Charles Nicholson |
| Nicholson | Matthew Henry Nicholson |
| Nicholson | Nicholson & Loy |
| Nicholson | Nicholson & White |
| Nicholson | Thomas Nicholson |
| Nicholson | William & Thomas Nicholson |
| Nicholson | William Nicholson |
| Nickel | Nickel Blanks Company Ltd |
| Nixon | Charles Edward Nixon |
| Nixon | George Nixon & Son |
| Nixon | Nixon & Winterbottom Ltd |
| Nodder | John Nodder & Sons Ltd |
| Nodder | William Nodder |
| Norcross | Thomas Norcross |
| Norris | Alexander Norris |
| Norris | Fox & Norris |
| Norris | Samuel Norris |
| North | North & Green |
| North | William North |
| Norton | Norton Cutlery Society Ltd |
| Nowill | John Nowill & Sons Ltd |
| Nowill | Joseph Nowill |
| Nowill | Nowill & Kippax |
| Nowill | W. Nowill |
| Noyland | Bernard Noyland |
| NS | N.S. & T. C. |
| Nutt | Glossop & Nutt |
| Nutt | W. R. Nutt & Company |
