https://techcrunch.com/2021/12/08/intellihot-series-b/

Founded in 2009, Intellihot has been on a mission to make commercial buildings more efficient, by improving the cost and physical footprint of keeping building H2O nice and toasty. The company just announced it raised $50 million to shake up the $81 billionn global HVAC market, with plans to expand internationally. The round was led by investors Aegon Asset Management and the Avenue Sustainable Solutions Fund. 

When you walk into an office building, you see security guards, fancy company plaques on the walls and, around this time of year, you may see a Christmas tree or two. What you don’t see is what happens deep in the bowels of a building, and if you’ve never paused to think about the vast amount of magic that happens under the floors, in the walls and along the ceilings of a building, you’ve probably not thought about what an incredibly complex creature a modern office building can be. Apart from the immediately obvious — electricity, internet and an endless and deeply necessary supply of caffeinated hot beverages — buildings need hot water.