The company I currently work at, FundingCircle, hosts the SF Clojure meetup and uses Clojure for a number of accounting systems.
I’m not a huge fan of the language myself, but it does have it’s strengths.
I guess you mean FundingCircle? How many devs on clojure?
It changes over time with new hires and attrition, but by my last count somewhere between 30 and 40 in the SF regional office. There are more in other regions, but I'm unsure as to the total number.
Nubank in Brazil has 500+ Clojure developers.
Oh woaw!
I'm pretty sure it sees a fair amount of use at Walmart labs.