We're a passionate team of engineers, real-estate professionals and business people making it easier to find a great place to live.

Interested in joining the team? See our current job openings.

Leadership Team
Ori Allon
Ori Allon
Founder & Executive Chairman
Ori Allon believes that you have to think big in order to create big impact. This ethos, as well as his determination to bring change through tech, motivated him to co-found Compass. Ori's background working in technology includes acting as Director of Engineering at Twitter, and developing the Orion software that eventually was acquired by Google. His passion lies within empowering entrepreneurs to make impact through technology. Ori earned his PhD in computer science at the University of New South Wales in Sydney, Australia.
Robert Reffkin
Robert Reffkin
Founder & CEO
Robert Reffkin is an entrepreneur on a mission to help everyone find their place in the world. He was inspired to enter the world of real estate by his mother, Ruth, a longtime agent who now proudly works at Compass. Robert completed a B.A. and M.B.A. from Columbia University and worked at McKinsey, Goldman Sachs, and as a White House Fellow. He ran 50 marathons in 50 states to raise $1 million dollars for charities — including for America Needs You, the non-profit he founded to serve young people living below the poverty line who are the first in their families to go to college. Robert lives in NYC with his wife Benis and their three children.
Kristen Ankerbrandt
Kristen Ankerbrandt
Chief Financial Officer
Kristen has nearly 20 years of global experience across the technology and media sectors, with expertise in software and tech-enabled services. As Chief Financial Officer, she oversees strategic and operational finance, acquisitions, investor relations, and the new development and legal teams. Prior to joining Compass, Kristen spent nearly 12 years at The Carlyle Group where she led technology investments for Carlyle’s $18.5 billion fund and oversaw the firm’s investments in a number of premier technology companies around the world. Prior to Carlyle, Kristen worked at Goldman Sachs in the Investment Banking Division where she focused on technology, media and communications transactions. Kristen holds a BA in Economics from Columbia University and an MBA from Harvard Business School.
Joseph Sirosh
Joseph Sirosh
Chief Technology Officer
Joseph is a technologist with a passion for AI. As Chief Technology Officer, he leads the development of the real estate industry’s first end-to-end platform and oversees the engineering team. Most recently, Joseph served as Microsoft’s Chief Technology Officer for AI. During his tenure, he held product and engineering responsibility for all enterprise database, big data and machine learning products, with 1,700+ engineers. Prior to Microsoft, Joseph spent nine years as a VP at Amazon where he managed the Global Inventory Platform for Amazon’s Consumer Business, and built the machine learning and Transaction Risk Management teams. Joseph holds a PhD in Neural Networks from the University of Texas at Austin.
Rob Lehman
Rob Lehman
Chief Business Officer
Rob joined Compass from management consulting at McKinsey & Company in New York City, where he was primarily focused on devising growth strategies in legacy industries through technology and data innovations. Rob has been named one of Forbes 30 Under 30, was ranked #27 on the T360 list of the 200 most influential people in residential real estate, and graduated summa cum laude from Duke University. Outside of work, Rob has worked on social enterprise initiatives on every continent, with a passion for public private partnerships to drive poverty alleviation.