ISI & RO Interiors is a Toronto based interior design studio creating thoughtfully designed spaces for residential and commercial clients.

Founded in 2019 and led by sisters Jessica Criminisi and Katie Roman, together they bring a shared passion for design and creating spaces that exceed what clients imagined possible. With complementary design backgrounds, they bring a unique balance of creative vision and practical expertise to every project, resulting in spaces that are both layered in its design and meticulously managed.

A woman sitting on a wooden stool, smiling, wearing a beige blazer and white pants, with her hand resting on her knee against a plain white wall.

KATIE ROMAN
Co-Founder
Principal Designer

JESSICA CRIMINISI
Founder
Principal Designer

From custom builds and full scale renovations to furnishing and styling, each project is guided by an appreciation for timeless design, natural materials and thoughtful detail. The result is a space that feels elevated yet personal, shaped by the way our clients live.

Working closely with our clients and a trusted network of skilled trades, craftspeople, suppliers and fabricators, we oversee every detail from concept through completion, creating a design experience that is collaborative, personalized and carefully executed.