I lived in Silicon Valley, New York, and London as a founder. If you're looking for a place to build a business, there's one clear winner.

• Amber Atherton launched her startup in London but moved to the US in 2017.
• While building her business, she lived in the UK, San Francisco, and New York.
• Silicon Valley is an unparalleled destination for focusing on building a business, she said.

This as-told-to essay is based on a transcribed conversation with Amber Atherton, 33, about living in San Francisco, London, and New York as a startup founder. The following has been edited for length and clarity.