Our Story

Riverside Design Group is a tabletop design business with a passion for style and a commitment to service. We are dedicated to being innovative, supportive of our community, and sensitive to the environment. Our efforts include operating out of an energy efficient LEED certified building, using recyclable and sustainable materials including glass with recycled content, and using light-weight recycled shipping materials to keep our carbon footprint low. As a part of our commitment to community service and support, we developed Plates With Purpose™, a line of plates that raises funds to support vital non-profit community organizations.

Revitalizing Pittsburgh

Founded in 1996, our company grew out of an idea to revitalize manufacturing in Western Pennsylvania by introducing new products suitable for museums and gift stores. Today, we are a full fledged design business servicing hotels, restaurants, boutiques, caterers, home furnishing stores, corporations, museum and gift stores with fine, handcrafted tableware and specialty products. The products you see on our website are a limited selection of the designs we produce and inventory. For more information on product capabilities, contact us… we would love to hear from you.

3485 Butler Street     Pittsburgh, PA 15201

Mary Irwin Scott

Mary Irwin Scott


A founding partner of Riverside, Mary jumped in as a leap of faith in 1997 and hasn’t looked back since.  Her background in psychology, counseling, textiles and education give her a unique perspective on the tableware industry. Always asking questions, she has a knack for listening, bringing people together and building relationships both in and out of the office. In 2009, she was honored by the Pittsburgh Business Times as an Outstanding Women in Business. Her passions are her family, friends, cheese, fresh fruit, coffee, wine and bourbon – in that order. She lives in, and adores Pittsburgh, PA.

Favorite Quote “For all that has been, thanks. for all that will be, yes!“ – Dag Hammarksjolf

Grant Scott

Grant Scott


A problem solver and creative thinker, Grant helped build Riverside from the ground up as an opportunity to work more closely with his wife and daughter. As an Architect with over three decades of multifaceted design and business experience he brings a lot to the table. To say he is productive is an understatement, as he is always designing, sketching, thinking and experimenting. He is passionate about good design and giving 100%. Notable achievements include an Army Commendation medal, Principal designer on numerous award winning projects, and  dinnerware in the permanent collection of the Brooklyn Museum. He is also the life of the party, working on his golf game, loves a bourbon Manhattan, and can tear up the dance floor.

Also answers to: Scotty, Dad, PopPop

Cassandra Ott

Cassandra Ott

Creative Director

Cassandra’s passion for design, art, cooking and food found their perfect match at Riverside.  As the Creative Director, she is behind the aesthetics, tackling design, product development and even snapping product shots with homemade salads and cookies. She combines her creativity and light-hearted nature with her problem solving abilities and 12 years experience to please a range of clients including four star hotels and celebrity chefs. You are likely to find her in her art studio or at a farmer’s market with her family in Buffalo, NY.

Lifelong dream: To live in a house designed by my dad (Co-Founder Grant Scott), own a cabin in the woods and pied-à-terre in Paris.

Mikki Opalko

Mikki Opalko

Office Manager

Mikki joined Riverside the year we opened and keeps us running like a well oiled machine.  She is the constant steady force that keeps orders moving and customers happy. In addition to being a key part of the Riverside family, she is passionate about her husband and two grown daughters, Alexandra and Hannah. Outside the office you can find her doing Zumba classes with Alexandra and visiting Hannah in New Hampshire, or spending summer vacations with her family at the beach.

Evening relaxationBritish mysteries

Heidi Mamula

Heidi Mamula

Customer Success

It was hard to find a title that encompasses all that Heidi does, but it’s safe to say that Customer Service is at the top of the list. She loves to get to know people and helping others is a borderline obsession.  Heidi has a Fine Arts background and is a tinkerer by nature. Transforming everyday objects has always been a thing of hers, and even lead her to develop a line of jewelry called Warehaus, sourced from the occasional broken plate, foam tiles, and bumpons found in the Riverside warehouse.  Raising and herding two grade school boys has trained her for all types of customer success responsibilities.

Other talents Super skier and snow bunny.

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Designs are handcrafted by our studios in the USA and Thailand.

Sustainable Materials

We use high quality sustainable materials and non-toxic colors.

Durable Design

Our products are durable and made to provide years of service and enjoyment.

Charitable Contributions

15% of the proceeds from our Plates With Purpose™ collection benefits national and local charities.