Threadneedle analysts Ben Needham and Anna Farmbrough and product specialist Neil Finlay are also moving to Investec. The five strong team will join Investec at the end of November.
Citywire A-rated Brazier (pictured) will form part of the Investec Quality capability where he will operate as co-head with Clyde Rossouw, manager of the Investec Global Franchise fund.
He will run UK equity funds consistent with his current UK alpha strategy and Investec will launch a UK Equity Income fund for Hutchins.
Domenico Ferrini, co-chief Investment officer at Investec, said: ‘We are delighted that such high-calibre investment professionals have decided to join Investec Asset Management.
'This deepens our capability in UK equities and positions us to better meet the requirements of our UK advisor and institutional clients, and respond to the increasing interest from international investors for UK Equity strategies.'
Investec managing director added: 'Simon has an excellent UK equities track record. Positioning him alongside Alastair Mundy and his complementary value team provides our clients with a compelling choice of UK equity-centric funds that strengthens our market position and relevance.’
The departures have seen Threadneedle global equity head Citywire AA-rated Leigh Harrison drafted back as UK equity head.
Commenting on the exits, Threadneedle chief investment officer Mark Burgess said: 'Threadneedle has one of the largest and best performing UK Equities teams in the industry, and I am confident that under the resumed leadership of Leigh Harrison the team will continue to deliver for our clients.
'We place great emphasis on teamwork and integrated research to ensure that our process is robust. This approach has produced a strong, consistent track record of results for our clients and this will not change. We will continue to invest to build additional resource in the team.'
The fund will sit alongside Kinder's Threadneedle UK Extended Alpha fund, which has returned 9% over the last 12 months versus a peer group average of 3.36%.
'Chris is a senior fund manager and a core member of the UK team. He has an excellent track record and we are very confident that he will continue the strong performance of the Threadneedle UK fund,' Burgess said.
Kinder will also assume control of the Threadneedle UK Select Trust on an interim basis.
'The board is discussing successor arrangements with Threadneedle,' the investment company said in a statement.
Brazier has been rated for 33 consecutive months by Citywire. In the three years to 31 July he has returned 38.6% on his UK fund, 3.3% higher than the peer group average.