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Donagh O'Sullivan
Donagh O'Sullivan is a director of Blackthorn Systems LTD and a director of Rosfenos LTD, among 3 current roles on record. Source: Companies House records.
Director at Blackthorn Systems LTD · Director at Rosfenos LTD
- 3 current roles
- 61 previous roles
- Served alongside 150 people
Donagh's network: 150 people across 65 organisations
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Official record Companies House · updated 11th October 2026 · Free, no card or password
Current roles
64 roles across 64 organisations-
Blackthorn Systems LTDDirector · 2026-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Blackthorn Systems LTD
- Role
- Director
- Appointed
- 2026-09-17
- Record reference
- Company 17464400
Current -
Rosfenos LTDDirector · 2022-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Rosfenos LTD
- Role
- Director
- Appointed
- 2022-09-01
- Record reference
- Company 14330473
Current -
Yorkguild LimitedDirector · 2007-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Yorkguild Limited
- Role
- Director
- Appointed
- 2007-01-08
- Record reference
- Company 05162405
Current
61 more roles, including 61 previous roles, with dates and sources
Sign in free to see all rolesPeople Donagh has served alongside
150 people across 65 organisationsBased on overlapping official board records. Calculated from official records
150 people across 65 organisations
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- Companies House
- Officer appointments and resignations.
- Edition
- Register edition compiled 11th October 2026
- Identity
- Records are treated as the same person only where the evidence confirms it. How people are matched