Thomson's Coffee Roasters traces its origins to 1841, when David Thomson began manufacturing Naperian vacuum coffee pots on St Vincent Street in Glasgow. That makes it Scotland's oldest coffee roaster, now in the hands of the Jenkins family, who purchased the business in 2011 as only the third family to own it in over 180 years. The current roastery, built in 1960 on Glasgow's Southside in Giffnock, houses both a vintage 1940s Whitmee flame roaster and Scotland's first Loring Kestrel S35, installed in 2015. Their coffee is organised into three ranges: Core, LAB, and Legacy, with the signature 1841 blend based on David Thomson's original recipe. Beyond roasting, the business runs multiple retail locations across Glasgow and offers wholesale supply, equipment rental, barista training, and engineering services.