Mary Mar Keenan

MMclay is a handmade tableware business run by local ceramic artist and designer, Mary Mar Keenan, in her Hayes Valley studio in San Francisco. Mary Mar's pottery is used throughout many popular restaurants, and as a result, has become highly desirable tableware throughout private home collections as well. 

In 2014, she designed and produced a collection of work for Stuart Brioza's (James Beard Award Winner Best Chef: West) most recent venture, The Progress. From this collaboration The Progress Collection was developed and has been featured in Food and Wine Magazine, Remodelista, Saveur, San Francisco Magazine and many others. 

Mary Mar has also produced tableware for an array of other top-tier restaurants in the Bay Area and other cities in the U.S., including Nightbird (SF), Single Thread Farms (Healdsburg), A16 (SF and Rockridge), Octavia (SF), BearCat (New Orleans), Wildhawk (SF), BirdDog (Palo Alto), Alloy (Miami), Goose & Gander (St. Helena), Bellota (SF), Pendulum (Vail), and a variety of smaller projects/collections. For more information, collaboration opportunities and more, email me today!


Kristof Puchner

Business Manager

Kristof is MMclay’s General Business Manager. Kristof's main focus is growing the business with new partnerships, while fulfilling operational needs: promoting and maintaining digital media; new and growing partnerships (hotel, restaurant, social); order fulfillment - both online and offline - all while juggling the creative side of the business as production potter and gas kiln operator. 

With over a decade in Sales and Marketing experience, Kristof's curiosity with ceramics began in his late teens, lending an ideal blend of creativity and business sense to MMClay. 

Andrew Kontrabecki

Studio Assistant

A tried and true functional Ceramist. Drew has been working in various N.California clay studios for over a decade. Before that he was immersed in NYC and Brooklyn Arts. A lifelong Artist, Father, cook, avid cyclist and loves a good pun.

Sarah Duyer

Studio Assistant

Sarah Duyer is an East Coast transplant living and working in San Francisco. When she’s not in the MMclay studio she is working part-time at local independent comic publisher/art crew/record label Silver Sprocket, or working in her own studio making functional and sculptural ceramics. You can find her work online at or read her blog at

Site Credits:
Photography - Kiera Condrey, Dennis The Prescott, Madelene Farin, Zoe Armbruster, Monica Lo,
Nader Khouri, and Chef Melissa King. 
Design and Photography - Gecko Graphics