Today, the Roasters Guild is made up of over 500 individual members; all professional Roasters dedicated to promoting the craft of coffee roasting.
Click below to apply for a Position on the Roasters Guild Executive Council



Mark Inman
Chair
Mark Inman
OLAM Specialty Coffee
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Mark entered the coffee industry in 1998 based on a passion for remarkable coffee and the belief that business can be environmentally and socially progressive while remaining profitable. For over twenty years, Mark has been a leading voice in the specialty coffee industry for issues concerning sustainable agriculture, environmental stewardship, green entrepreneurship, and social justice. In 2008, Mark served as President of the Specialty Coffee Association of America, where he has also chaired or served on numerous committees and international task forces. From 2010, Mark served as President of World Coffee Events, which manages 7 international coffee competitions including the World Barista Championship (WBC).
Allen Leibowitz
Vice Chair
Allen Leibowitz
Zingerman's Coffee Company
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Allen is a Managing Partner and founder of Zingerman’s Coffee in Ann Arbor, Michigan. He is responsible for green sourcing, roasting, quality control and education. Allen has developed customer training courses and regularly teaches cupping, service and all aspects of brewing. On a regional level, Allen is active in building the local barista/coffee culture, including teaching at Michigan's first SCAA regional skill building workshop. He is an accredited instructor for the SCAA, has taught at the National Association of Specialty Food (NASFT), and judged at many Rainforest Alliance Cup for Quality events. Allen believes there is something new to learn about coffee every day.
Mary Tellie
Secretary / Treasurer
Mary Tellie
Electric City Roasting Co.
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Mary Tellie is the Owner of Electric City Roasting Co and Zummo's Cafe. She has also been featured as one of the top ten women in coffee by Barista Magazine and has also been featured in Roast Magazine for utilizing small and medium size roasters. Tellie drives her company to work with farmers and micro- mills around the world to create direct trade relationships to promote sustainability and traceability with the coffee we buy. In doing so Tellie has exceeded the FTO model in so far as the price per pound tendered and increasing the percentage in which the farmers and millers get paid. As a roaster retailer we love telling our direct trade stories to all of our loyal customers.
Bill Anstedt
Bill Anstedt
Caribou Coffee Company
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Bill’s introduction into coffee was almost accidental. Especially, since before working at Caribou, Bill was not much of a coffee drinker. What began just as a routine employment search has evolved into a lifelong passion for coffee, and all of its nuances. In 1997 Bill began working with Caribou in the packaging department. His inquisitive nature and interest in every part of the process developing the final product was noticed and rewarded with his first roasting team position, green coffee blending. Caribou did 90% of their blending by hand at the time, and almost every bag weighed more than Bill. Ok they still weigh more than Bill. Bill’s continued dedication to product quality has led him to his current role as a Roast Technician. Today the majority of Bill’s responsibilities are centered on roasting and product QC.
Colleen Anunu
Colleen Anunu

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Colleen is a licensed Q Grader and Q Grader Instructor Apprentice for the Coffee Quality Institute. She serves on multiple SCAA committees, has been part of the SCAA and NCA organizational assessment teams, and volunteers for coffee organizations worldwide. Her mission on the Lectures subcommittee is to bring important high level dialog to the free lecture format, including various Relationship Coffee panels, and the 2012 “Variety Development and The Future of Quality” panel. She believes in a strengthened supply chain, and YOU!
Bob Arceneaux
Bob Arceneaux
Orleans Coffee Exchange
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Bob is the co-owner and green coffee buyer for Orleans Coffee Exchange, and has been in the coffee business for over 20 years. He has been on the EC for the past two years, and also served on the RGEC from 2006-2008. Bob has volunteered for SCAA Exposition in cupping labs and roasting labs, as well as assisting staff at Roasters Guild Retreats. He feels it’s important that the RG continue to provide meaningful and educational classes to guild members. Bob chairs the membership committee currently and wishes to help facilitate growth for the guild. Bob is happy to see how RG is providing meaningful content and credible educational opportunities for its members.
Nolan Dutton
Nolan Dutton
Ozo Coffee Roasters
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Nolan Dutton is the head roaster and green buyer for Ozo Coffee Roasters. Nolan has a constant pursuit of knowledge and the sharing of ideas as a driving force behind everything he does. Believing we are here for community and growth, he roasts to highlight the hard work of the farmers who produce the coffee we all share and love. He currently teaches classes at Expo and RG Retreat and is active in the RG Professional Development Certification Panel.
Sevan Istanboulian
Sevan Istanboulian
Cafe Mystique Coffee Inc.
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Sevan Istanboulian’s days as a coffee roaster started in 1995 and he has been an active member of the Roasters Guild since the early days of its inception. Sevan is currently serving on the Education Committee of the Executive Council and has played a pivotal role in the development of some of the critical educational courses for the RG certification program. He is known to most of you as the guardian of the roasting tent during Roasters Guild Retreats.
Emilio Lopez
Emilio Lopez
Cuatro M Coffees
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Emilio is a sixth generation coffee producer in El Salvador. He is experienced as a grower, managing two plantations, Ayutepeque and El Manzano. He is a miller/exporter and roaster, founding Cuatro M, Single Origin Coffees and Topeca Coffee in 2001. He has been a member of the roasters guild since 2002, attending nine of eleven RG retreats. He is heavily involved in researching the variables of coffee production, and their effects on the final cup, titled the El Manzano Project; of which he presented on at the previous RG retreat. He is eager to continue these efforts, to better contribute to the roasting community.
Phil Maloney
Phil Maloney
Peet's Coffee & Tea
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Phil began his career in coffee in 1989, when he joined S&W Fine Foods as production manager in the coffee plant in San Francisco. He learned the business from the ground up, lumping coffee sacks, opening bags, roasting on a JB 21R continuous roaster, and running packaging machines. Over the course of the next thirteen years, he worked as QC manager and plant manager, and eventually advanced to director of coffee operations and green coffee buyer. In 2002, Phil joined the Ecom Coffee Group as a coffee trader with Atlantic Specialty Coffee in the Bay Area and was promoted to vice president in 2005. In 2012, Phil joined Peet’s Coffee & Tea as director of coffee purchasing. He begins his day in the cupping room, selecting the best coffees from around the world, and spends a part of each day planning ahead to secure the world’s best coffees months before harvest.
Joe Marrocco
Joe Marrocco
Café Imports
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Father, husband, home cook, fisherman, roaster, barista, green coffee salesman, hunter, teacher, musician, student and all around busy guy, Joe Marrocco has a life that is full of people, places and fun. Joe enjoys to serve, share, and create. Joe’s coffee career has included roasting for Kaldi’s Coffee Roasting Company in St. Louis, MO, selling green coffee for Café Imports, serving as a Chapter Representative for the Barista Guild of America, competing and judging barista competitions including a regional win, and lots of educational opportunities. Joe is excited and honored by the opportunity to serve on the RGEC. He hopes to bring a passion for service, and a deeper connection to the barista community.
Chris Wade
Immediate Past Chair
Chris Wade
Alliance for Coffee Excellence
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Coffee roasting is something Chris loves to do. Chris works at Coffee Bean International (CBI) where he currently holds the position of Green Coffee Quality / Green Coffee Buyer. Chris has been a roaster for over ten years now, and has spent the last 2 years serving on the Roasters Guild Executive Council. Chris really enjoys the involvement with the roasting community and feels that volunteering is a way to give back. He has spent a lot of time working with the Roasters Guild certification and classes and looks forward to keeping up the momentum. Coffee is a huge part of his life and it’s not just a job to him.

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