75F, the India-US based global leader in IoT-based building automation technologies to optimize indoor air quality and energy efficiency in commercial spaces, today announced an investment from Siemens AG. Next47, the global venture capital firm backed by Siemens, led the investment on behalf of Siemens Smart Infrastructure. The latest influx in 75F’s Series A funding round brings the Minneapolis-based company’s total funding to $28 million. Next47 joins a prestigious group of investors who have supported 75F including Bill Gates’ Breakthrough Energy, the Climate Initiative, and WIND Ventures, among others.