What is the relationship between WSO2 and middleware in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Tuesday, August 25, 2015 11:48AM IST (6:18AM GMT) (BW)(PACIFIC-CONTROLS) Pacific Controls Acquires Equity in WSO2 Positioning Itself as a Global Leader in Delivering Managed Cloud Services Dubai, United Arab Emirates Pacific Control Systems (PCS), the world leader in Internet of Things (IoT) and machine-to-machine (M2M) solutions, announced that it has invested $20 million into WSO2, an open source cloud application development and middleware company.

Answer: industry