One Investment Group executive director Justin Epstein said the partnership would strengthen the company's capacity.
“Yorkway will provide us with additional tools and capacity to accelerate our strategic growth plans and realise the full potential of our business,” he said.
Yorkway founder Paul Batchelor, formerly chief executive of AMP, said he was excited about the new partnership.
“We are delighted to be partnering with One Investment Group’s founders, Frank Tearle and Justin Epstein, who will remain significant shareholders in the group and continue to run and grow the business,” he said.
Mr Batchelor will join One Investment Group’s board as the new chair.
“One Investment Group has a meaningful presence in an attractive and growing market and we believe that the skills and investor networks that we have built since our inception in 2010 will help take One Investment Group to its next level of growth,” he added.
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