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Siobhan Costello
Siobhan Costello is a holder of the role of secretary at Unity Advisory Holdco Limited and a holder of the role of secretary at Unity Advisory Opco 1 Limited, among 3 current roles on record. Source: Companies House records.
Secretary at Unity Advisory Holdco Limited · Secretary at Unity Advisory Opco 1 Limited
- 3 current roles
- 3 previous roles
- Served alongside 67 people
Siobhan's network: 67 people across 6 organisations
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Official record Companies House · updated 4th October 2026 · Free, no card or password
Current roles
6 roles across 6 organisations-
Unity Advisory Holdco LimitedSecretary · 2025-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Unity Advisory Holdco Limited
- Role
- Secretary
- Appointed
- 2025-11-28
- Record reference
- Company 16351090
Current -
Unity Advisory Opco 1 LimitedSecretary · 2025-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Unity Advisory Opco 1 Limited
- Role
- Secretary
- Appointed
- 2025-10-10
- Record reference
- Company 16351321
Current -
Unity Advisory Opco 2 LimitedSecretary · 2025-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Unity Advisory Opco 2 Limited
- Role
- Secretary
- Appointed
- 2025-10-10
- Record reference
- Company 16351322
Current
3 more roles, including 3 previous roles, with dates and sources
Sign in free to see all rolesPeople Siobhan has served alongside
67 people across 6 organisationsBased on overlapping official board records. Calculated from official records
67 people across 6 organisations
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- Companies House
- Officer appointments and resignations.
- Edition
- Register edition compiled 4th October 2026
- Identity
- Records are treated as the same person only where the evidence confirms it. How people are matched