Martijn Zengerink has taken the general manager post at the London Marriott Hotel Grosvenor Square. He took the role from September 2026, and the trade press carried the appointment from 15 September.
He joins from inside Marriott International after just over three years with the company, two of them as multi-property general manager in Edinburgh. The property is a 237-room five-star hotel on one of Mayfair's principal squares.
Four hotels at once in Edinburgh
Zengerink became general manager of the Sheraton Grand Hotel & Spa Edinburgh in August 2023. The hotel holds 269 rooms and five stars, and it carries the largest banqueting space among the five-star hotels of the Scottish capital. In May 2025 he took a multi-property brief that put the Sheraton Grand, Courtyard Aberdeen Airport and the two Residence Inn properties in Aberdeen and Edinburgh under one manager.
That spread covers a full-service five-star city hotel with a large events business, an airport property and two extended-stay houses. Each carries its own revenue calendar and its own staffing model, and one manager answered for all four.
An opening and a conversion in Dubai
Before Marriott, Zengerink ran the pre-opening of voco Monaco Dubai, the first hotel in The Heart of Europe, the Kleindienst Group project on Dubai's artificial islands. He carried construction, operational fit-out and commissioning through to a 197-room opening in January 2023.
Earlier he was hotel manager at Crowne Plaza Jumeirah Dubai under IHG Hotels & Resorts, where he oversaw the renovation and rebranding from the former Ramada Jumeirah and delivered a 24 percent year-on-year lift in food and beverage revenue. He began in Thailand with Onyx Hospitality Group and later served as director of operations at Amari Bangkok.
A management education behind the operations record
Zengerink holds a bachelor's degree in hotel management from Hotel Management School Maastricht. He completed an MBA at EHL in 2024 and a certificate in hotel revenue management at Cornell University. On LinkedIn he wrote that he was pleased to share he was taking the new post.
The ownership change behind the appointment
Evolution Investment Fund acquired the hotel's long leasehold earlier in 2026 for £1.1 billion, in a deal that also covered two neighbouring sites earmarked for future luxury hotel projects. The property is also nearing the end of a major digital transformation project, which the appointment announcement names as the reason for the timing.
An owner holding two development sites beside a 237-room hotel has a portfolio question rather than a single-asset question. The general manager's brief therefore sits inside a district scheme as well as a trading year.
What the Mayfair hotel gains
The five-star property needs a manager who can hold several audiences at once. Zengerink arrives with three experiences the remit calls for. He has answered for four hotels in one market. He has opened a property from construction through commissioning. And he has taken a hotel through a change of flag.