The Management Team


With a combined experience of well over 100 years in the financial industry, and a strong commitment to excellent client service, Torstone’s management team work together to create innovative post-trade solutions to address real industry pain points for financial firms.

  • Brian Collings

    CEO Brian Collings

    Brian has 25 years experience of team, project, executive and board level management in variety of high profile roles in the financial sector. He joined Torstone after serving as CIO and COO of KBC Financial Products, prior to which he worked at UBS, Natwest Markets & DE Shaw.

  • Julie Merry

    CFO Julie Merry

    Julie has held Finance Director roles for a variety of software and consultancy businesses, including Charteris plc, the AIM-listed management consultancy firm. Julie is a Chartered Accountant and worked in audit and corporate finance in the London and New York offices of PricewaterhouseCoopers.

  • Amrik Thethi

    CTO Amrik Thethi

    Amrik has extensive experience as a technology leader and software architect. He has broad experience of large scale software architecture and complex project implementation working in both the UK and the US. He worked at KBC FP, Deutsche Bank and several technology startups prior to joining Torstone.

  • COO Mack Gill

    COO Mack Gill

    Mack has 24 years experience in capital markets technology. He has worked with the world’s leading exchanges, clearing houses, depositories, banks, and brokers; most recently in his role as CEO of MillenniumIT, a leading trading technology company, and a subsidiary of London Stock Exchange Group (LSEG). Earlier, Mack was president of SunGard Technology Services (now part of FIS).

  • Jonny Speers

    Global Head of Sales Jonny Speers

    Jonny has over 24 years experience building and leading sales teams in capital markets technology. Prior to Torstone, Jonny held senior positions in a number of fintech firms, including OpTier and ION Trading. He also gained invaluable experience building a start-up business through his time at Yolus, where he was part of the management team that grew and ultimately sold the business.

  • Jon Dinnis

    Head of Professional Services Jon Dinnis

    Jon has 15 years experience in financial technology and has been with Torstone since its foundation, before which he worked in Risk at Goldman Sachs. He has also worked as a developer, technical team leader, and project manager. Jon is a qualified project manager and a qualified company secretary.

  • Jon Dinnis

    Head of Asia Gordon Russell

    Gordon has 25 years experience in the Financial Services and Fintech industry. Focused mainly in the capital market space where he has worked with both buy and sell side institutions solving risk and operational business problems most recently with SunGard (FIS) and Broadridge. The last 14 years have been focused in successfully growing businesses in APAC running sales, operations and product teams.