The Bristol-based wealth management firm - which has seen profits and funds under management rise by 300% and 40% in the last 18 months -said the buy would allow it to deliver its stockbroking and discretionary fund management capabilities on a global basis.
Isle of Man-based Acordias supports the international adviser community through an open architecture platform which offers funds, direct equity holdings, structured products and various other investment instruments.
Rowan Dartington said the acquisition would provide Acordias with the infrastructure support and financial backing to push ahead with its ambitious growth plans.
Rowan Dartington chairman Graham Coxell (pictured) said: 'This is an important, and very exciting development for Rowan Dartington as this acquisition represents a significant step for our business as a leading investment services provider.
'It is the perfect opportunity to combine our stockbroking and investment management expertise with the existing, well-functioning technological framework that will allow us to expand our distribution base globally.'
Mr Coxell added: 'Rowan Dartington is a perfect fit for Acordias as we have the financial credibility, as well as a great team of people who have historically been involved in the platform market. This is an exciting time in the growth of Rowan Dartington’s business.'