This season marks an exciting chapter for Sircle Collection as we continue to grow across Europe with inspiring new openings. In London, we’ve just unveiled Sir Devonshire Square, while in Vienna we’ll soon open the doors to our second private members’ club, The Cover, inside Max Brown 7th District. Later this year, we’ll celebrate the launch of Max Brown Athens, rounding out a truly remarkable 2025.
At the heart of these incredible milestones is the talented leadership team guiding our vision and our people. We’re thrilled to share the recent promotions and new appointments shaping the future of Sircle Collection.
Leading with Experience: Mariette Sjerp
We are proud to announce the promotion of Mariette Sjerp to Chief Financial Officer. Mariette Sjerp is the CFO of Sircle Collection and has been with the company for almost 20 years. She started in 2007 as Financial Controller of Park Hotel Amsterdam and has since grown through roles from Cluster Controller to VP Finance before stepping into her current role. Along the way, she’s been part of opening new hotels, repositioning existing ones, and advising the board on the group’s future. We couldn’t be more excited to see her lead this next phase of our journey.
Favourite Sircle Collection city: Barcelona
Can’t travel without: Something to read, could be a book or a magazine.
Welcoming Our New VP Team
Alongside Mariette’s promotion, we’ve built a dynamic new VP team, each bringing unique expertise and energy to our community:
Rick de Jonge, VP of Operations
Rick has been with Sircle Collection since 2017, taking on leadership roles across multiple regions before stepping into his current position as VP of Operations. With a background at Starwood Hotels & Resorts and Marriott in destinations such as Paris and Barcelona, Rick now oversees our entire portfolio, guiding Hotel Managers daily to deliver excellence.
Favourite Sircle Collection city: Barcelona, no doubt!
Can’t travel without: A well-organized itinerary! Since I am all about seamless operations.
Myriel Walter, VP of Brand & Membership
Since joining Sircle Collection in 2015, Myriel has played a key role in shaping our brand strategy and cultural programming. With over 18 years of experience across membership, branding, PR, and communications, she brings creativity and vision, rooted in a career that began in London’s music scene before leading roles at Cookies and Soho House Berlin.
Favourite Sircle Collection city: Barcelona, as I have my second home there.
Can’t travel without: Music in my ears!
Pauline Lassalle, VP of Finance
Pauline joined us in May 2025, bringing over a decade of hospitality finance experience from global brands like Accor, TUI, Mama Shelter, and Ennismore. Most recently, she served as Director of Hotel Finance, Southern Europe at Ennismore, where she oversaw 25 lifestyle hotels and restaurants. Her sharp financial leadership and global perspective make her an invaluable addition to the team.
Favourite Sircle Collection City: Barcelona!
Can’t travel without: My “must-eat” list, longer than my packing list.
Rebecca Suiker, VP of Commercial
Rebecca unites strategy, innovation, and growth. With a proven track record in commercial leadership, she leads sales, revenue, and bookings across the collection. Known for her collaborative and dynamic approach, she thrives on turning bold ideas into real results.
Favourite Sircle Collection city: Vienna, the perfect mix of culture, history, and a short distance to nature and the Alps.
Can't travel without: My notebook! The best ideas come at unexpected moments.
Jesse van Loon, VP of People and Culture
Jesse brings over 11 years of experience from CitizenM, where he oversaw operations across Northern Europe. His true passion lies in people: fostering company culture, supporting growth, and building confidence so that others can thrive.
Favourite Sircle Collection city: London, and obviously our first hotel in the UK!
Can't travel without: My AirPods!