The following appointments took place at the Royal Ark Mariner Investiture Meeting in Freemasons’ Hall, Great Queen Street, London on 12th December 2017:
Royal Ark Mariner Grand Rank:
| John Stanley Broughton | Hull | 182 |
| David Hodgson | Middlesbrough | 276 |
| Michael George Pegg | Ryedale | 277 |
The following appointments took place at the Royal Ark Mariner Provincial Assembly in The Spa, Scarborough on 4th November 2017:
Royal Ark Mariner Provincial Grand Rank:
| Ian Barry Gregson | Scarborough | 95 |
| Charles William Maltby | Hull | 182 |
| Phillip Clive Ellenor | Middlesbrough | 276 |
| John Victor Thompson | Alexandra | 803 |
| Michael Roche | Allertonshire | 845 |
| Alec Norris Wilson | Allertonshire | 845 |
| Maurice Hatton | The Beacon Centenary | 1583 |