MARKUS GRABMEIER
HAYLEY MCKELVEY
PEOPLE MO
Markus Grabmeier CEO Siemens
Hayley McKelvey Chief AI Officer Deloitte UK
MARKUS GRABMEIER
JOB FROM: EXECUTIVE MANAGEMENT COMMITTEE MEMBER OF ALFANAR, BASED IN RIYADH, SAUDI ARABIA
JOB TO: CEO, ELECTRICAL PRODUCTS AT SIEMENS
Markus Grabmeier has rejoined Siemens as CEO of Smart Infrastructure’ s Electrical Products unit, succeeding the retiring Andreas Matthé.
Markus returns to the company – where he previously spent 14 years, including as leader of East Asian operations – following his recent executive role at Alfanar in Saudi Arabia.
HAYLEY MCKELVEY
JOB FROM: DIGITAL ENABLEMENT AND INNOVATION LEAD, TAX AND LEGAL AT DELOITTE
JOB TO: CHIEF AI OFFICER AT DELOITTE UK
Deloitte UK has appointed Hayley as its first Chief AI Officer, a newly-created role to establish a firm AI strategy across client services and internal operations. Hayley most recently served as the firm’ s Chief AI Officer for the UK’ s Tax and Legal practices. With more than 20 years of technology and transformation experience, she has a proven track record of delivering measurable outcomes through long-term digital transformation programmes for clients and within Deloitte.
20 July 2026