Transparency data
Cabinet Office: business appointment rules advice, October to December 2025
Published 24 March 2026
© Crown copyright 2026
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This publication is available at https://www.gov.uk/government/publications/cabinet-office-business-appointment-rules-advice-october-to-december-2025/cabinet-office-business-appointment-rules-advice-october-to-december-2025
| Full Name of Applicant | Meg Trethewey |
|---|---|
| Title of Former Civil Service Role | Special Adviser |
| Date Left/Retired from the Civil Service | 24th May 2024 |
| New Employer | Thames Water |
| New Appointment/Employment (including when taken up) | Regulatory Policy Manager (9th December 2025) |
| Department’s Decision on Application (including details of any waiting period or other conditions or restrictions applied) | For 2 years from their last paid day of service, the applicant should not: - Become directly involved in lobbying the Government on behalf of Thames Water, or make use of their contacts in Government and/or Crown service to influence policy or secure business on behalf of Thames Water. - Work or advise on any bids to secure Government funding or contracts for Thames Water; - Advise on or be involved in any work that relates to the preparations or discussions relating to any potential implementation of a Special Administration Regime; - Have any engagement with HM Government on behalf of Thames Water. The applicant has also been reminded of their ongoing responsibilities to: - Ensure they do not draw on privileged information available to them as a Crown servant; - Use official channels for any contact with Government that occurs after the rules cease to apply in May 2026. |
| Full Name of Applicant | Sarah Rayner |
|---|---|
| Title of Former Civil Service Role | Commercial Director, Strategy, Assurance and Standards in the Cabinet Office Central Commercial Team |
| Date Left/Retired from the Civil Service | September 2025 |
| New Employer | UK Parliament |
| New Appointment/Employment (including when taken up) | Chief Commercial Officer (October 2025) |
| Department’s Decision on Application (including details of any waiting period or other conditions or restrictions applied) | The applicant should not draw on, disclose or use for the benefit of herself or external suppliers, any privileged information available to her. For two years from her last day in the Civil Service, the applicant should only use official channels to contact the Government, thus mitigating the risk of improper use of government contacts. |
| Full Name of Applicant | Tom D’Silva |
|---|---|
| Title of Former Civil Service Role | Special Adviser |
| Date Left/Retired from the Civil Service | 25th May 2024 |
| New Employer | Gemcorp |
| New Appointment/Employment (including when taken up) | Business Analyst to the CEO (11th December 2025) |
| Department’s Decision on Application (including details of any waiting period or other conditions or restrictions applied) | For two years from their last paid day of service, the applicant should not: - Become directly involved in lobbying the Government on behalf of Gemcorp or its clients, or make use of their contacts in Government and/or Crown service to influence policy or secure business on behalf of Gemcorp or its clients; - Work or advise on any bids to secure Government funding or contracts for Gemcorp or its clients. The applicant has also been reminded of their ongoing responsibilities to: - Ensure that they do not draw on privileged information available to them as a Crown Servant; and - Use official channels for any contact with Government. |