Organizational chart illustrating company hierarchy with photos and titles, featuring leaders Corrina Sullivan, Courtney Mitchell, Alexa Collopy, Barry Sullivan, Will Craig, and various team members.

Who We Are

Kumlin Sullivan Architecture Studio Ltd. (KSAS) is a dynamic full-service architectural practice based in Alberta and British Columbia, with registration to practice in Manitoba, Saskatchewan, and Ontario. Founded in 1998, the firm builds on a legacy of design excellence, drawing from over 27 years of history. Lead by the firm's Principals Barry Sullivan, Will Craig, and Alexa Collopy, the firm has successfully delivered more than 1,500 projects across Canada

KSAS offers comprehensive in-house architectural, interiors, master planning, and visualization services—from initial concept and planning through to construction documentation and contract administration. Our balanced, collaborative team combines creative vision with technical precision, allowing us to lead complex projects of varying scales while maintaining agility and personalized service.

A hallmark of our approach is the consistent involvement of a Principal throughout all project phases; providing leadership, accountability, and team continuity from conception to completion. Our clients value this direct engagement, which ensures that project goals, design intent, and key decisions are carried forward seamlessly. Our portfolio reflects thoughtful, high-performing design that contributes lasting value to communities and the environment.

Meet the Team

  • Black and white portrait of a smiling middle-aged man with curly hair, a beard, wearing a suit, shirt, and patterned tie.

    Barry Sullivan

    Principal, Architect AAA, AIBC, SAA, MAA, OAA, MRAIC

  • A black-and-white portrait of a smiling man with short hair, wearing a suit jacket and a button-up shirt with a dotted pattern, facing slightly to the right.

    Will Craig

    Principal, Architect AAA, AIBC

  • A smiling woman with shoulder-length dark hair, wearing earrings and a black blazer over a striped shirt, posing against a plain background.

    Alexa Collopy

    Principal, Architect AAA, AIBC, MRAIC

  • Black and white portrait of a woman with long hair, smiling slightly, wearing a patterned top.

    Monica Brito

    Senior Architectural Designer

  • Black and white portrait of an older man with short, light-colored hair, wearing a collared shirt, making a slightly skeptical or unimpressed facial expression.

    Oscar Cena

    Senior Production Manager, Architect AAA

  • A smiling woman with shoulder-length dark hair, wearing a white blazer and a necklace with an owl pendant, against a light background.

    Iris Li

    Senior Architectural Technologist, LEED

  • Black and white photo of a woman with short hair, smiling broadly, wearing a white top.

    Silviia Al-Masani

    Architectural Designer, LEED

  • Black and white portrait of a woman smiling, wearing a white collared shirt, with straight shoulder-length hair, against a plain background.

    Dana Johnson

    Architectural Technologist

  • A smiling woman with long dark hair, light eyes, and wearing a light-colored sweater, against a plain background.

    Tamara Mahar

    Architectural Technologist

  • Black and white portrait of a smiling woman with long dark hair, glasses, and a blazer, against a plain background.

    Xylene Tugade

    Architectural Technologist

  • Sam Nie

    Architectural Technologist

  • Black and white portrait of a woman with long dark hair, wearing a floral top and a dark cardigan, against a plain light grey background.

    Julie-Anna Ly

    Architectural Technologist

  • Black and white portrait of a woman with shoulder-length wavy hair, smiling, wearing a blazer over a top, against a plain background.

    Corrina Sullivan

    Accounting Manager

  • Black and white photo of a woman with shoulder-length dark hair smiling, wearing a collared shirt.

    Courtney Mitchell

    Executive Assistant