Internet security company Zscaler recently announced the finalization of $100M in funding. TPG led the funding round in conjunction with existing investors EMC and Lightspeed Ventures. The Zscaler platform delivers comprehensive web, mobile, cloud application and wifi security for customers that include United Airlines, NBC, Humana and the National Health Services of the UK. The $100M funding round is intended to accelerate product development, expand sales operations and scale the business to accommodate its meteoric growth. According to a press release, Zscaler currently secures over “15 billion internet requests” and stops over 100 million threats to cybersecurity daily. Zscaler’s multi-tenant, distributed cloud platform bi-directionally identifies incoming and outgoing security threats while concurrently optimizing internet performance and end user productivity. The $100M funding round raises Zscaler’s estimated valuation to over $1 billion and emphatically illustrates the intensity of market interest in innovative and effective cloud security solutions. As a result of the capital raise, TPG partner Nehal Raj will join Zscaler’s board of directors. Meanwhile, TPG’s investment in Zscaler continues to illustrate its support for disruptive technology companies such as Uber, Airbnb, Domo and Lynda.com.