Private Rentals

Located in the heart of the Central Eastside industrial district, Theory is the perfect location for your next dinner or evening reception. Featuring gorgeous waterfront views, Theory reflects our industrial roots with sleek furnishings, reclaimed wood accents and an open, airy floor plan.  Whether you’re planning an intimate dinner for 25 or a lavish reception for 200, Theory offers a fresh take on banquet events.

Theory can accommodate up to 180 guests for a plated meal or buffet, and 225 guests for a reception-style event. Private evening rentals start at 5pm and include existing tables, chairs, and complimentary parking. AV services are also available for additional fees.

To inquire about private rental availability, please contact:

Megan Strong
OMSI Event Sales Manager


Julia Houha
OMSI Event Sales Coordinator



Science, Meet Food


Theory, a new eatery at OMSI, reinvents the dining experience and invites guests inside the kitchen. Executive Chef Ryan Morgan and his team present honest ingredients, food sources and cooking techniques while each seasonal dish is prepared and served to curious observers of all ages. Through exhibits and events, Theory encourages visitors to explore the science of food. Echoing OMSI’s emphasis on health and wellness, Theory champions sustainable practices and wholesome eating.

Bon Appétit Management Company, which operates Theory, has been an industry leader in local sourcing— buying at least 20 percent of its ingredients directly from local farmers, ranchers, fishermen and artisan producers — since 1999. In the last 10 years, the company — whose philosophy is “food service for a sustainable future” — has also initiated policies to offer sustainable seafood, rBGH-free dairy, meat and poultry raised without routine antibiotics, cage-free shell eggs, climate-friendlier options and humanely raised meat.



Spices, once as precious as gold, are what make our cooking so uniquely appealing. In addition to creating a rich complexity of flavor, did you know spices also have powerful health and wellness benefits?


A Petri dish of the spice Cloves

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A Petri dish of the spice Nutmeg

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A Petri dish of the spice Coriander.

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A Petri dish of the spice Tumeric.

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A Petri dish of the spice Mustard Seed.

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A Petri dish of the spice Star Anise.

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A Petri dish of the spice Cinnamon.

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A Petri dish of the spice Saffron.

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A Petri dish of the spice Cardamom.

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