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Tandem Coffee Roasters

Tandem Coffee Roasters is a specialty coffee roaster and café operator based in Portland, Maine, known for its light-roast coffees and its two Portland cafés.

Last updated September 26, 2026

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Overview

Tandem Coffee Roasters is an American specialty coffee company based in Portland, Maine. Founded in 2012 by Kathleen and Will Pratt, the business began as a small-batch roastery and grew into one of the most recognized specialty coffee brands in New England. The company operates a roastery and two cafés in Portland — one on Congress Street and one on Anderson Street — and sells whole-bean coffee, espresso, and brewed coffee through its cafés, its website, and wholesale accounts. Tandem is known for a light, fruit-forward roasting style that highlights the character of single-origin coffees, and for a rotating menu of espresso and filter offerings. Its cafés have become local institutions and destinations for coffee enthusiasts visiting Portland, and the brand has been featured in national coffee media. The company also offers subscription coffee, brewing equipment, and merchandise through its online store. As a private, independently owned business, Tandem has not disclosed detailed financial information. Its growth has been driven by wholesale partnerships with restaurants and cafés, direct-to-consumer online sales, and the reputation of its Portland cafés. The brand remains closely associated with the third-wave coffee movement in the United States.

History

Tandem Coffee Roasters was founded in 2012 in Portland, Maine, by Kathleen and Will Pratt. The couple started the business as a small-batch coffee roastery, roasting coffee for wholesale clients and selling beans directly to consumers. In its early years, Tandem built a reputation among local restaurants and cafés for carefully sourced, lightly roasted coffees. The company later opened its first café on Congress Street in Portland, followed by a second location on Anderson Street. These cafés became popular gathering places and helped establish Tandem as a destination for specialty coffee in New England. The Anderson Street location also houses the company's roastery, allowing visitors to see the roasting operation. Over the years, Tandem expanded its wholesale business and its online store, offering coffee subscriptions and brewing equipment. The brand has been recognized in national coffee media and has become a fixture of Portland's food and beverage scene. As an independent, privately owned company, Tandem has not disclosed detailed financial results or ownership changes.

  • 2012

    Founded in Portland, Maine by Kathleen and Will Pratt.

  • Opened first café on Congress Street in Portland.

  • Opened second café and roastery on Anderson Street.

Products and positioning

Specialty, third-wave coffee roaster and café brand focused on light-roast, single-origin coffees.

  • Single-origin whole-bean coffee

    Rotating selection of light-roast single-origin coffees.

  • Espresso blends

    House espresso blends served in cafés and sold as beans.

  • Coffee subscriptions

    Recurring coffee delivery service via the online store.

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