Entrepreneur UK’s London 100: Belong

Belong empowers millennials to build wealth with innovative features like its Boost Loan, making long-term investing accessible and inclusive

By Patricia Cullen | Jun 05, 2025
Belong
Avion Gray and Samantha Rosenberg, Belong co-founders

Opinions expressed by Entrepreneur contributors are their own.

You're reading Entrepreneur United Kingdom, an international franchise of Entrepreneur Media.

Industry: Fintech
Founded by former investment banker Avion Gray and behavioural economist Samantha Rosenberg, Belong, a wealth-building platform aimed at, and founded by millennials, aims to make forms of wealth-building that have traditionally been the domain of a wealthy few, accessible to a wider demographic.

In March of 2024, Belong launched after securing £2.95m in pre-seed funding – the largest ever European pre-seed round by a female founding team. To make profitable long-term investment more accessible for a younger generation, Gray and Rosenberg have developed a unique Boost Loan feature that matches the amount the user has invested.

Having launched a Crowdcube campaign this February, they have successfully closed the round having raised just shy of half a million pounds at £490,000. The fund got immense support from the get-go having reached its target of £300,000 in less than five hours.

The funds will go towards helping to develop new and financial products for their ever-growing list of customers in addition to their novel ‘Boost loan’ proposition. Backed by the likes of Octopus Ventures, serial entrepreneurs Ricky Knox and Gautham Radhakrishnan and Nutmeg co-founder, William Todd, Belong is on a mission to disrupt the investment industry.

Industry: Fintech
Founded by former investment banker Avion Gray and behavioural economist Samantha Rosenberg, Belong, a wealth-building platform aimed at, and founded by millennials, aims to make forms of wealth-building that have traditionally been the domain of a wealthy few, accessible to a wider demographic.

In March of 2024, Belong launched after securing £2.95m in pre-seed funding – the largest ever European pre-seed round by a female founding team. To make profitable long-term investment more accessible for a younger generation, Gray and Rosenberg have developed a unique Boost Loan feature that matches the amount the user has invested.

Having launched a Crowdcube campaign this February, they have successfully closed the round having raised just shy of half a million pounds at £490,000. The fund got immense support from the get-go having reached its target of £300,000 in less than five hours.

The funds will go towards helping to develop new and financial products for their ever-growing list of customers in addition to their novel ‘Boost loan’ proposition. Backed by the likes of Octopus Ventures, serial entrepreneurs Ricky Knox and Gautham Radhakrishnan and Nutmeg co-founder, William Todd, Belong is on a mission to disrupt the investment industry.

Patricia Cullen

Entrepreneur Staff

Related Content

Entrepreneurs

The Circular Revolution

UK entrepreneur Phil Sutton is turning waste into opportunity. From recycled kerbs to circular packaging, he explains how start-ups can scale green technologies, navigate policy hurdles, and transform the future of the built environment.