HashiCorp Inc.

In 2012, Armon Dadgar and Mitchell Hashimoto founded HashiCorp to build open-source tools and commercial products for software infrastructure management. In layman speak: HashiCorp's DevOps software makes it easier for businesses to build apps. Hashimoto (CEO) and Dadgar (CTO) use the metaphor of the power grid to explain their tools: Think of an app as an electronic device, and HashiCorp services as the transmission lines that carry power to it. Except instead of connecting electronics to electricity, it helps the internet of things stay connected to the cloud servers that keep products and services running. As highly technical and obscure as the company's niche sounds, Dadgar says data-center management is potentially a $100 billion market. What makes it different from other options, say the founders and customer Twitch, is how it offers a general solution that doesn't sacrifice options for modification. That flexibility is one reason big-name customers--Dropbox, Square, Commonwealth Bank of Australia--are drawn to the service.
Note: All data as of 1/31/16