Johnston Carmichael strengthens senior leadership team with four key appointments
Leading independent UK accountancy and business advisory firm Johnston Carmichael has appointed four senior leaders, including its first chief technology officer and a new audit partner, as it strengthens its team across the UK.
The appointments reflect Johnston Carmichael’s continued investment in its people, technology and specialist services as the firm grows its UK client base.

Tamsyn Weston has joined as chief technology officer in Edinburgh, leading the firm’s strategy across IT, cyber security, digital development, AI and automation. She brings more than 20 years’ experience in technology, transformation and cyber security within regulated environments, with her role having a particular focus on using emerging technology responsibly to support the firm’s growth.”

Deborah Ramsay has joined as an audit partner in Glasgow, also bringing more than 20 years of audit experience, including a Big Four background. Deborah is a Chartered Accountant and has been a Responsible Individual (RI) since 2020. She has extensive experience across International Financial Reporting Standards (IFRS) and UK Generally Accepted Accounting Practice (GAAP) spanning sectors including energy, retail and manufacturing.

Johnston Carmichael has also appointed Katie Lange, who joins as a director in Aberdeen. She has almost two decades of global payroll experience across sectors including oil and gas, financial services and technology, with a particular focus on process improvement and client service. Leani Passano joins the Audit Quality, Risk & Technical team as director, bringing significant experience from leading international and UK accountancy firms, with an emphasis on sustainability reporting and assurance.
Lynne Walker, CEO, Johnston Carmichael, said: “Tamsyn, Deborah, Katie and Leani bring deep experience and new perspectives to Johnston Carmichael. Their appointments strengthen the technology behind our business, the audit expertise we offer clients and the specialist support available across our UK offices. They demonstrate the calibre of people we continue to attract, and I look forward to seeing the contribution they make.”
Mark Houston, chair and senior partner, Johnston Carmichael, said: “These appointments come at an important time for Johnston Carmichael as we continue to grow our services and our footprint across the UK. Investing in technology is central to making sure we are future-fit. Digitisation can free our advisers to do what they do best: build relationships with clients and provide trusted advice.
“Audit is a hugely important service for us too. The team has grown to more than 200 people. Today we audit more of Scotland’s top 100 companies than any other firm, a real measure of the trust our clients place in us.”

