The wall behind Sid Sijbrandij emanates a warm orange glow. Then, waves rush toward the shore at his back. The change in scenery isn’t distracting, however. It’s deliberate. The GitLab co-founder has a green screen in his office, which is also his home.

Every employee of the San Francisco-based Startup, which offers tools for software developers, works from home. Three years ago, that was nine people. Today, GitLab’s 350 employees across 45 countries use video calls and Slack chats to stay constantly connected. The dramatic expansion has been enabled by outsize investment–a $100 million fund raise in September landed it a $1 billion valuation. It has also been propelled by revenue growth that skyrocketed to nearly $10.5 million last year, up 6,213 percent from just over $165,000 in 2014–helping it notch No. 44 on this year’s Inc. 5000 list of the fastest-growing companies in America.