Which sectors are investing in iot?

It's no secret that by 2020 IoT is set to have dominated the tech industry, with a possible 50 billion devices being connected to the internet and each other. So, according to Sonovate, which sectors (and more specifically, which companies) are investing in Internet of Things?

BlueCat - $27,800,000
Sector: Enterprise Infrastructure 
Based in Maidenhead, BlueCat delivers software-based DNS, DHCP and IP address management solutions enabling customers to build and manage their most complete network infrastructure to meet the rapid change of pace of their business. 

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4Energy - $10,500,000
Sector: Offices
4Energy works with Facilities Management professionals and DC and IT managers to lower energy and cooling costs and improve their understanding and management of their infrastructure. 

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Inrix - $143,100,000
​Sector: Cities
Inrix offer real time traffic information solutions that help the individual, economic and environmental toll of traffic congestion. 

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Kaazing Corporation - $37,020,000
Sector: Enterprise Infrastructure
Kaazing deliver a high-performance web communication platform that drives value by better connecting businesses to their customers and by securely and reliably delivering real-time applications over the web. 

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Zscaler - $148,000,000
Sector: Offices 
Zscaler ensures that more than 12 million employees at more than 5,000 enterprise and government organisations globally are protected against cyber-attacks and data breaches while staying fully compliant with corporate and regulation policies.