It has its challenges, but it also has its benefits, too. I’ve spent equal time in each office and you can definitely get a feel for small differences between the two. The SF office was only started within the past year, so it’s much smaller than the Paris office. (We’re growing all the time so I don’t know the exact numbers, but it’s something like 35 in Paris and 10 in SF.) All of our devs are in Paris, while many of our business and marketing people, including our CEO and CFO, are based in SF. We use Slack and video conferencing liberally. We also use other tools for collaboration like Asana, Google Docs, Github, etc. One of our core values is transparency, so making sure we share information across all offices is really important. One of the big challenges is what we do in SF after Paris has signed off for the night. Since we currently have all of our devs in Paris, we request at least one dev cycle through SF at all times. That way we can answer support questions quickly at all hours. We have corporate apartments in SF and Paris a walking distance from the offices, so there is a lot of travel between the two. This gives the team a great opportunity to get to know each other in person and share the cultures between the two. That’s the challenges, but the benefits are great, too: we can draw on the cultures and the talents of France and Europe as well as the United States. It makes for a very refreshing company culture.