Tech start-up valuations are looking frothy. Pre-IPO high flyers such as Uber, Airbnb and Snapchat are seeing their valuations soar to the skies to as much as $50 billion, $24 billion and $16 billion, respectively. Meanwhile, smaller and lesser-known start-ups with names like Zomato (a restaurant finder app), Kabam (which develops multi-player social games) and SimpliVity (purveyor of IT infrastructure platform OmniCube) are reaching the once rarefied level of $1 billion as well.
