The FCA has been criticised by lawmakers and the crypto sector for being slow in processing licence applications and for rejecting swathes of applicants despite the UK government's push to make London a global crypto hub.
"It's no surprise that I still see many crypto firms still seeking to get licences here in the UK even though some have been denied those licences at the first pass," FCA executive director for competition and consumers Sheldon Mills told a City & Financial conference.
"They know we have a good system of regulation and if they meet our standards that's important for every jurisdiction that they seek to apply for around the world," Mills said.
"That is a benefit to the UK economy and UK financial service industry, and is good for competition, inward investment and growth."
Crypto firms are scrutinised by the FCA for their ability to stop their operations being used for money laundering or financing terrorism.
In March, the FCA said that 90% of crypto firms seeking approval for their anti-money laundering controls have either withdrawn their applications or been refused because they could not meet the standards.