He will report to Thesis' director of institutional sales Giles Marriage and be based in the firm's Lymington offices. 
His appointment brings the total number of Thesis investment managers to 16 based across five offices.
Mr Low will be responsible for managing client portfolios and working with intermediary firms to increase sales.
He joins from Barnett Waddingham Investments where he was head of client relations where he worked on internal projects and advised high-net worth clients. Prior to that he worked for Barclays Wealth.
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Mr Marriage said: "We are very pleased to welcome Tom to the team. In addition to his professional experience, Tom's background in client relations will help our team reach the right individuals, institutions, charities, trustees and intermediaries.
His appointment comes at an exciting time for Thesis as we look to further develop our highly respected investment management solutions."
Mr Low said: "I am excited to be joining Thesis. The company is well known for its client-centric approach to investment and wealth management and creating tailored investment solutions. I am looking forward to making a strong contribution to the team and to helping the business develop and expand."

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