More than 130 guests relaxed in the seaside environment in the heart of the City, with cocktails, ice cream and candyfloss.
It was held at The Sterling in the Gherkin, which is one of Late Night London’s 52 venues.
Will Broome, chief executive of London Launch, said: "We were delighted with the turnout and, of course, the weather.
"The relaxed and vibrant atmosphere was the perfect blend for a City summer networking soiree."
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