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Onyx Coffee Lab × Rosslyn Coffee

From Arkansas
to London.

Built on hospitality. Shared through coffee.

London Wall · September 19–20 & 26–27

01

The story

What if Onyx didn’t simply visit London? What if we built something together?

Last year, during the London Coffee Festival, our team spent a day with James from Rosslyn wandering the streets of London. We shared coffees, traded recommendations, visited cafés that shaped the city’s coffee culture, and talked about what makes hospitality memorable.

Somewhere between conversations and cups, an idea emerged.

Rosslyn has earned its reputation as one of London’s defining specialty coffee destinations — not simply because of the coffee they serve, but because of the way they care for people. At Onyx, we see ourselves in that commitment. Hospitality has always been our shared language.

We believe coffee is better when it’s shared.

02

Arkansas roots

Northwest Arkansas is a place where the Ozark Mountains meet a growing culture of art, food, and adventure. It’s home to world-class mountain biking, miles of public trails, and a community that believes in welcoming people well.

It’s also where Onyx Coffee Lab was born.

Our founders, Jon and Andrea Allen, grew up here, and the spirit of Arkansas continues to shape everything we do. The hospitality you’ll experience at Rosslyn this September was learned back home, where people know your name, conversations come easily, and caring for others is simply part of the culture.

For four days in London, we’re excited to share a little piece of Arkansas with you.

Arkansas Visit Arkansas Tourism
03

Your visit

For two weekends this September, Rosslyn London Wall becomes home to Onyx Coffee Lab. Our team is traveling from Northwest Arkansas to work alongside the Rosslyn crew, bringing the same hospitality and attention to detail you’ll find in our cafés back home.

During your visit, you’ll find:

The same hospitality and attention to detail you’ll find in our cafés back home — poured in the heart of the City.

Available for a limited time — the cup that brought two coffee communities to the same counter.

Shop the coffee

Specials developed together for these four days — ask the bar for what’s pouring.

Pieces made to mark the collaboration, available while they last.

Browse merchandise

Extra plates and pairings alongside the London Wall menu for the weekends we’re in town.

Onyx team members are available throughout the café to share stories about Arkansas, our coffees, and the partnership that brought us here.

Whether you’re a longtime Onyx supporter, a Rosslyn regular, or discovering us for the first time, we hope you’ll pull up a chair, stay awhile, and experience what happens when two coffee communities come together.

04

What brings us together

This collaboration began with a simple conversation between friends. What followed was a shared vision to bring two coffee communities together, connecting Arkansas and London through hospitality, craftsmanship, and a genuine love for serving people.

Meet the people behind the partnership

Onyx Coffee Lab

Jon Allen & Andrea Allen

Co-Founders

Rosslyn Coffee

James Daunt & Matt Taylor

Co-Founders

05

Visit us

Join us at Rosslyn Coffee’s London Wall café as Onyx Coffee Lab brings a taste of Northwest Arkansas to the heart of London.

Weekend one September 19–20
Weekend two September 26–27
Where
Rosslyn Coffee — London Wall
118 London Wall
London EC2Y 5JA
United Kingdom
Hours
Weekends 8am–3pm
Get directions Shop the coffee

We can’t wait to welcome you.

Taste the collaboration

Bring a little of this table home.

The collaboration coffee is available for a limited time. If you can’t make it to London Wall — or want another bag after you do — you’ll find it with the rest of our offerings.

Shop coffee