Royal Bank of Scotland's (RBS) advice arm and M&G have joined AIFA as associate members.
Associate members have no voting rights in the organization, but join as supporters of independent financial advice.
Associate members include major providers such as Standard Life, Prudential, Aegon and Scottish Widows but RBS is the first advice arm of a high street bank to join AIFA's supporters.
"By joining AIFA [RBS and M&G] are demonstrating their ongoing commitment to the IFA profession," said Stephen Gay, director general of AIFA.
"Through additional work undertaken with RBS we will bring a series of regional events to our members.
"This will allow us to visit them in locations up and down the country. The events themselves will explore the issue of volatility within cautious and balanced funds through a member factsheet."
Gay added the move gives AIFA access to more IFAs via M&G's iView online TV channel.
Zak de Mariveles, managing director of RBS global banking & markets, said: "RBS are delighted to be working so closely with AIFA and its members, with a commitment to supporting the IFA community as we strive to offer greater investment choice to IFAs and their clients."
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