Cartmill Stewart LLP is a forward-thinking chartered accountancy firm based in Lisburn, Northern Ireland, established in 2014. They specialize in tech-driven accounting, compliance, and advisory services, offering expertise as Xero Gold partners and QuickBooks Online advisors.

By leveraging cloud-based solutions, they help small businesses optimize their financial processes. Led by partners Claire Stewart and Gilbert Cartmill, the firm is dedicated to providing innovative accounting solutions and strategic guidance. In April 2024, they rebranded from Cartmill Stewart & Co LLP, marking a new phase of growth and evolution in the industry.