tmGroup announces the appointment of Matthew Green as its new Chief Executive Officer, effective Monday, 18th August 2025.
Matthew joins tmGroup with more than two decades of leadership experience in the property technology sector. He spent over 21 years at CoStar Group, a global leader in commercial real estate information, analytics and online marketplaces which is listed on NASDAQ and included in the S&P 500 Index, where he most recently served as European Managing Director. In that role, he led operations across the UK, France, Germany and Spain, reporting directly to the global CEO.
Matthew began his career at Arthur Andersen, qualifying as a Chartered Accountant in 2000. Following a well-earned career break over the past year, he joins tmGroup full of energy and enthusiasm, eager to collaborate with colleagues across the business and shape the company’s next chapter.
“I’m thrilled to be joining tmGroup at such an exciting point in its journey,” said Matthew Green, CEO of tmGroup. “Having spent time getting to know the property technology industry from many angles, I can already see the huge potential here and I’m looking forward to working closely with the talented team to unlock it. This next chapter is all about building on tmGroup’s strong foundations, embracing innovation, and delivering even greater value to our clients.”
As part of the leadership transition, outgoing CEO Thomas Maerz will move into a new role on the tmGroup Advisory Board, where he will continue to support the business, maintain key relationships, and focus on identifying the company’s next acquisition opportunities.
Reflecting on his tenure, Thomas Maerz said: “The past two years have been a fantastic journey, and that’s entirely thanks to the tmGroup team. Their commitment, collaboration, and drive have brought the company to where it is today. I’m excited about what’s ahead – for Matthew, for the team, and for tmGroup.”
Matthew lives in East Sussex with his wife and three children. While not originally from Swindon, he grew up in Gloucester, attended school in Bristol, and graduated from Reading University, making this part of the UK familiar territory.
