A study from Rathbones found a rising number of people with over £250,000 to invest, increasing demand for bespoke investment management.
Financial advisers across the UK said they expected clients with investable assets over £250,000 to rise from one in five (21%) to one in four (25%) over the next three years.
More than half (52%) of those offered personalised support were aged between 50 and 55, with only 15% under 50.
Many people were accessing bespoke investment management late, as they approached retirement.
As more people planned for retirement with larger portfolios, advisers saw a need for active management to help fund retirement effectively.
Simon Taylor, head of strategic partnerships at Rathbones, said: “There is increasing concern among many people in later life that, with the tax burden rising and the economy under pressure, they may not be able to afford the retirement they’d hoped for.
“Delivering the right support to people with many different assets and ambitions is complex and challenging, which is why a bespoke approach to investing helps advisers best protect and grow wealth so clients can enjoy their later years.”