CompStak and Knotel join forces to build valuation tool

Office buildings are much more complicated than home valuations because rent rolls are hard to obtain

CompStak and Knotel are joining forces to try and build a valuation tool for office buildings, according to the CO. They are essentially trying to do to office buildings what Zillow has done to home valuations.

Why it matters: Young startups are raising lots money to build this tool. Makes sense that two existing companies want in on the action. 

On the companies: Knotel is a WeWork rival that recently closed a $70 million funding round at a valuation of $500 million. CompStak uses a crowd-sourced model to help gather real estate data, and has raised $21.3 million to date.