Decision

Horowitz, Cassian - Head of Strategic Communications and Digital at No.10 - ACOBA advice

Advice to Cassian Horowitz, former Head of Strategic Communications and Digital at No.10 Downing Street, on business appointments after leaving Crown service.

• From: Advisory Committee on Business Appointments
• Published: 19 February 2025
• Last updated: 27 August 2025 — See all updates

Documents

Advice Letter: Cassian Horowitz, Head of Executive Digital Communications, Google LLC (USA)

PDF, 152 KB, 7 pages

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Advice Letter: Cassian Horowitz, Head of Executive Digital Communications, Google LLC (USA)

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Advice Letter: Cassian Horowitz, commission with The Office of Akshata Murty & Rishi Sunak

PDF, 150 KB, 5 pages

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Advice Letter: Cassian Horowitz, commission with The Office of Akshata Murty & Rishi Sunak

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Advice Letter: Cassian Horowitz, Independent Consultancy

PDF, 119 KB, 6 pages

Advice Letter: Cassian Horowitz, Independent Consultancy

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Advice Letter: Cassian Horowitz, commission with Vedandata Resources

PDF, 156 KB, 6 pages

Advice Letter: Cassian Horowitz, commission with Vedandata Resources

HTML

Details

Mr Horowitz left his role at No.10 in May 2024.

Head of Executive Digital Communications, Google LLC (USA)

Mr Horowitz sought the Committee’s advice about taking up an appointment with Google LLC (USA). The letter containing the Committee’s consideration and the conditions imposed on the appointment was sent in July 2025; with a planned start date in September 2025. An accessible version of the letter is available here.

Independent Consultancy and commissions

Mr Horowitz sought the Committee’s advice about setting up an independent consultancy. An accessible version of the letter can be found here and taking on a commission with:

• Vedandta Resources ltd. (An accessible version of the letter is available here.)

• The Office of Akshata Murty & Rishi Sunak (An accessible version of the letter is available here.)

Published 19 February 2025

Last updated 27 August 2025 + show all updates

1. 27 August 2025

   Appointment with Google LLC (USA) added.

2. 26 March 2025

   Commission with The Office of Akshata Murty & Rishi Sunak added.

3. 19 February 2025

   First published.