SAN FRANCISCO—CompStak, the world's largest marketplace for commercial real estate comparables data, has closed a $4.4 million investment round, bringing its total venture funding to over $10 million. The round was led by Canaan Partners, with strategic investment from dmg Information (dmgi), Exapnsion VC and Rubenstein Partners. Launched in Manhattan in 2012, CompStak has already expanded its leading platform to the 12 largest U.S. commercial real estate markets including San Francisco, Washington DC, Chicago, Los Angeles and Dallas. CompStak plans to use the new funding to grow the team, add more key markets to its platform and further develop its new broker analytics platform, CompStak Exchange.

“We've already signed up most of the money center banks, including Wells Fargo, and with real estate owners and investors like Tishman Speyer, The Carlyle Group, Beacon Capital and others, it's clear that the world's top institutional real estate players value the information that CompStak provides,” said CompStak's CEO and co-founder Michael Mandel. “This round is very exciting for us, as it has given us the opportunity to bring in several strategic investors, like dmgi - a major investor in several real estate technology companies.”

CompStak now employs 40 full-time employees, and its national database contains over half a million versions of commercial lease transaction records.