Vanguard is the second platform to join the Association of British Insurers, following Hargreaves Lansdown last year.
The ABI started taking platform members following pension providers focusing on improving transfers and re-registration after pension freedoms.
Vanguard Europe head Sean Hagerty says: “Our membership will enable us to support and help influence government policy to encourage more people to save and invest for their future.”
He says: “As part of this, we believe investment providers must continue to lower the cost and complexity of investing. As an industry, we have a responsibility to make investing easier and less costly for investors.”
ABI chair and Aviva UK insurance chief executive Andy Briggs says: “Last year, the ABI opened its membership to platforms to reflect the increasingly important role they play in the long-term savings market, given that technology is fundamentally changing how customers interact with their long-term saving choices.”