One problem for a startup (as opposed to a consulting firm), is that you would eventually want to have geographically distributed offices and teams, though. So

One problem for a startup (as opposed to a consulting firm), is that you would eventually want to have geographically distributed offices and teams, though. So if you start with a code-base in something other than english and then end up opening an office in Ireland, Germany, Singapore or India you will likely end up rewriting into english anyways (never mind the Bay Area, Seattle or NYC, which you will likely need before your company reaches 10,000 developers...).