James Dilworth's Workshop Coffee, founded 2011 in Clerkenwell and now roasting in Bermondsey, runs cafes across central London and supplies serious filter bars across the city.
Tip: The Wigmore Street cafe has the deepest counter selection. Marylebone Lane and Holborn sit nearby for office-lunch coffee runs.
Address: 75 Wigmore Street, London W1U 1QD
Anita Le Roy's pioneer London coffee roaster, founded 1978 on Monmouth Street in Covent Garden, runs two retail-and-cafe sites and is the city's longest-running specialty roaster.
Tip: The Covent Garden original on 27 Monmouth Street has the standing counter; Borough has more outdoor seats.
Sources from: Ethiopia, Guatemala, Colombia, Brazil
How they serve: Espresso, Filter, Whole bean retail
Daniel Climpson's roaster on Broadway Market in Hackney London, founded 2002, runs a Saturday-market cafe at 67 Broadway and a roastery on Helmsley Place.
Tip: The Saturday market is the canonical visit. Climpson's Arch on Helmsley Place is a Friday-Saturday-only railway-arch bar.
Sources from: Brazil, Ethiopia, Colombia, El Salvador
How they serve: Espresso, Filter, Whole bean retail, Subscription
Michael Allpress's New Zealand-founded specialty roaster, opened in London on Redchurch Street in Shoreditch in 2010, runs cafes across east London and an in-house roastery.
Tip: The Redchurch Street original sits next to Brat. Their Dalston site has the bigger laptop seating area.
Sources from: Brazil, Honduras, Ethiopia, Colombia
How they serve: Espresso, Filter, Whole bean retail
Tom Sobey's Cornwall-founded Origin Coffee, roasting in Helston since 2004, opened the Charlotte Road London cafe in 2015 and runs a third-wave filter bar with serious beans.
Tip: The retail wholesale relationship runs to many of Soho and Clerkenwell's morning coffee bars. Look for the seasonal Ethiopian filter offers.
Sources from: Ethiopia, Colombia, Brazil, Kenya, Costa Rica
How they serve: Espresso, Filter, Whole bean retail, Subscription
Kurt Stewart's Stockwell-based London coffee roaster, founded 2010, runs a serious B-corp-certified specialty roastery in south London and supplies cafes across the capital.
Tip: No public cafe; subscribe online or buy beans through stockists. The Mons Sandwiches deli on Stockwell Road is the nearest cafe pouring their beans.
Sources from: Brazil, Ethiopia, Honduras, Peru
How they serve: Espresso, Filter, Whole bean retail, Subscription
Stephen Leighton's Has Bean Coffee, founded 2002 in Staffordshire and a foundational supplier to the early London specialty scene, runs a subscription roastery and weekly beans.
Tip: Has Bean's beans feature at Tap, Prufrock and other London cafes. Subscribe through their site for weekly single-origin filter beans.
Sources from: Ethiopia, Brazil, Costa Rica, Colombia, Panama
How they serve: Espresso, Filter, Whole bean retail, Subscription
