Four companies founded decades ago–Microsoft, IBM, Oracle and SAP–still control half of the $270 billion business software market, according to Gartner. All the others get scraps. The status quo consists of expensive licensing deals, even more pricey setup costs followed by ongoing maintenance and consulting fees just to keep the software up to date. Yet the products they’re selling are largely archaic. Most are stuck on servers talking to PCs and don’t run on mobile devices, even though 47% of American workers are using their smartphones for work and 16% are also using tablets, per Forrester Research.

The new wave of more-convenient-to-own cloud-based business software, which began last decade with Salesforce, Netsuite and Workday, has swelled to dozens of startups now hitting the enterprise market with flexible pricing, mobile access and tools that make doing business as easy as using Facebook. B2B software has also been a much healthier investment play. The IPOs of Workday and Splunk went off brilliantly while consumer Web firms Zynga and Groupon disappointed.

Levie built Box for this new world. 
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