The company, which owns the award-winning Transact funding platform, is expected to be valued at around £500m following the float.
IntegraFin is set to become the first company in the capital to float on the London Stock Exchange this year.
The float on the LSE’s main market will value the company, which was founded back in 1999, at around £500m.
The company’s Transact platform is an award-winning B2B service which aggregates and manages its clients' investment portfolios and financial plans online, making investing easier.
Ian Taylor, chief executive of the company, said: "It is 19 years since our foundation as the UK's first B2B platform company and we are delighted to announce our intention to list on the London Stock Exchange.
“We are proud to have built a leading business that provides a premium service to the clients of UK financial advisers, supported by our proprietary platform and high touch client service teams.
“We have developed a clearly differentiated business of scale with impressive returns and strong margins that operates in a growing market.
“We have generated positive underlying profits every month since 2003 and the platform has had net inflows every year since launch in 2000.
“Supported by a growing demand for financial advice, an increasingly complex investment landscape, pension freedoms and strong growth drivers in the UK wealth management market, we believe that we are well-positioned to continue to achieve long-term sustainable growth, returning value to our shareholders, customers and staff alike.
“We are extremely positive about the future."