What Cumulus Architects does

Cumulus Architects Inc. is a Toronto-based architecture and design firm founded in 2015 by Paul Szaszkiewicz and Sheldon Catarino, operating from 160 Pears Avenue. The firm delivers professional architectural services across four core practice areas: Healthcare and Wellness (acute care, mental health and addictions, complex care, seniors care, and academic research facilities); Heritage and Adaptive Reuse (conservation and restoration of historic buildings); Commercial and Residential (mixed-use developments, luxury retail, hospitality, and residential); and Public Infrastructure (justice, education, transit, and arts facilities). The firm is built on a team-based design philosophy and integrated project delivery model, combining interdisciplinary expertise across digital BIM workflows (Revit, SketchUp) and an in-house model shop with laser cutting, etching, and 3D printing capabilities.

Cumulus generates revenue through fee-based professional services, structured as a percentage of construction cost for full-service engagements or fixed fee arrangements for specific phases (concept design, schematic design, design development, contract documentation, and construction administration). The go-to-market motion is enterprise field sales through formal RFP processes with institutional clients, design competitions, and long-term client relationships, supplemented by active participation in healthcare and infrastructure industry conferences (CCHF, European Healthcare Design Congress, Canadian Institute Forums, SLCan). The firm serves enterprise and institutional clients including University Health Network, Unity Health Toronto, Winnipeg Regional Health Authority, Health PEI, Infrastructure Ontario, OLG, CN Tower, and First Capital REIT, with projects secured across Canada and strategic partnerships extending reach to UK healthcare work via Medical Architecture. Notable precedent-setting projects include Canada's first purpose-built seniors-focused emergency medical centre (Myrna Daniels Seniors Emergency Medicine Centre at UHN Toronto Western Hospital) and the $300M OLG gaming modernization program covering 14 facilities across Ontario.

Name

Cumulus Architects

Legal name

Cumulus Architects Inc.

Website

https://cumulusarch.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Cumulus Architects is a Toronto-based architecture firm founded in 2015, delivering team-based design services across healthcare, heritage, commercial, and public infrastructure sectors for institutional, government, and enterprise clients in Canada.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Architectural, Engineering, and Related Services (5413)

akta.pro primary industry

Community Engagement & Participatory Planning (BPAHAKAO)

Keywords

• Architectural design services
• Healthcare facility design
• Heritage conservation
• Adaptive reuse design
• Master planning

Headquarters

HQ city

Toronto

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Architectural Services: Fee-based professional services for architectural design and planning across healthcare, institutional, commercial, heritage, and public infrastructure projects. Revenue is project-based with fees structured as percentage of construction cost or fixed fee arrangements for specific service scopes.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Cumulus Architects is a Toronto-based architectural firm providing full-service design and integrated project delivery across four practice areas: Healthcare and Wellness, Heritage and Adaptive Reuse, Commercial and Residential, and Public Infrastructure. Services span master planning, business case analysis, concept and schematic design, design development, contract documentation, and construction administration. The firm serves hospitals, healthcare systems, government agencies, REITs, real estate developers, and educational institutions, with specialized expertise in evidence-based healthcare design, biophilic principles, and adaptive reuse of heritage buildings.

Product overview

Cumulus Architects is a Toronto-based architectural firm offering specialized design services across four core practice areas: Healthcare and Wellness (including acute care, mental health, seniors care, and research facilities), Heritage and Adaptive Reuse (conservation and restoration of historic buildings), Commercial and Residential (mixed-use developments, luxury retail, hospitality, and residential), and Public Infrastructure (justice, education, transit, and arts facilities). The firm operates as a unified team-based design practice, combining interdisciplinary expertise to deliver complex projects from master planning through construction administration.

Differentiator

Problem solved

Functional benefit

Products and services

• Healthcare and Wellness Architecture Services Comprehensive healthcare facility design spanning Acute Care, Mental Health and Addictions, Complex Care and Rehabilitation, Seniors and Long-Term Care, and Academic Teaching and Research facilities. Services include long-range visioning, business case analysis, campus master plans, and complex phased renovations grounded in evidence-based design and sector-informed expertise for hospitals, healthcare systems, and provincial health authorities.
• Heritage and Adaptive Reuse Services Conservation, restoration, and adaptive reuse of heritage buildings for commercial clients, REITs, cultural institutions, and nonprofit owners, with services including heritage assessment, technical precision work, and creative transformation of existing structures that reduce environmental impact while preserving cultural value.
• Commercial and Residential Architecture Services Mixed-use developments, offices, hospitality, boutique retail, residential projects, and master planning for real estate developers, REITs, luxury retail brands, and commercial property owners. Includes transit-integrated developments, retail spaces blending heritage with adaptive reuse, and state-of-the-art specialized facilities.
• Public Infrastructure Architecture Services Planning and design expertise in justice, academic research and education, transit, and arts and culture sectors for government agencies, educational institutions, and public-sector organizations. Familiar with publicly funded projects, gated approvals, indigenous engagement, and emerging collaborative contracting models including P3, design-build, and construction management.

Quantifiable outcome

• 60,000 sq.ft. King Animal Hospital - largest facility in Canada for companion animal and equine referral and emergency care
• +5 more outcomes

Named customers22 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

19 partnerships are on record, tiered core and minor.

• Medical ArchitecturecoreStrategic or Co-development PartnerUK-based healthcare architecture firm with long-term strategic partnership for international healthcare projects. Combined expertise in healthcare design has resulted in projects including Safehaven's Bloor Street redevelopment, CAMH Forensics facility, and Health PEI Mental Health & Addictions Planning.
• Agnew PeckhamminorOthersFunctional Programming consultant on Unity Health St. Joseph's Health Centre redevelopment project.
• BA GroupminorOthersTraffic consultant on Unity Health St. Joseph's Health Centre redevelopment.
• HH AngusminorOthersMechanical and Electrical engineering consultant on Unity Health St. Joseph's Health Centre redevelopment.
• WSPminorOthersStructural, Mechanical, Electrical, Civil engineering on Unity Health St. Joseph's Health Centre redevelopment.
• Nine YardsminorOthersConsulting team member on Health PEI Mental Health & Addictions Planning project.
• Mikkelsen ArchitectscoreStrategic or Co-development PartnerDanish architecture firm associated for Lash Miller Chemistry Building Expansion project at University of Toronto. Collaboration on the groundbreaking Acceleration Consortium facility for AI-driven discovery and Self-Driving Labs.
• mcCallumSatherminorOthersConsulting engineering partner on Lash Miller Chemistry Building Expansion project.
• ArupminorOthersEngineering partner on Lash Miller Chemistry Building Expansion project.
• UrbaconminorOthersConstruction management partner on Lash Miller Chemistry Building Expansion project.
• TACT ArchitecturecoreStrategic or Co-development PartnerArchitecture firm partnership on Dymon Storage mixed-use developments (Dufferin and York Mills sites). Also collaborated on 908 St. Clair project.
• Centreline ArchitecturecoreStrategic or Co-development PartnerArchitecture firm partnership on Sudbury Arts Junction and Kingsway Entertainment District projects in Greater Sudbury.
• Richard Wengle Architect Inc.minorOthersBase Building Design architect for King Animal Hospital.
• Kelly Wearstler InteriorsminorOthersPublic space interior design for King Animal Hospital.
• PRISIM PartnersminorOthersHospital Clinical Fit-Out & Campus Buildings partner for King Animal Hospital.
• mackaywongminorOthersHospitality design firm for CN Tower Observation Deck modernization.
• Studio Paolo FerrariminorOthersDesign collaboration on Daphne Terrace restaurant project in Toronto.
• Studio TLAminorOthersDesign collaboration on Daphne Terrace restaurant project.
• mackaywongminorOthersInterior design partnership on OLG Gaming Modernization project - 14 facilities across Ontario.

Scale indicators12 records

Recent moves2 records

Expansion highlights5 records

Direct peers

• Diamond Schmitt Architects: Toronto-based architecture firm with comparable healthcare and institutional portfolio, including major hospital redevelopments and academic research facilities. Both firms compete for the same premier Canadian healthcare and public infrastructure RFPs.
• Parkin Architects: Toronto-based healthcare architecture specialist with deep Canadian hospital portfolio. Directly comparable to Cumulus in healthcare market segment, client type (hospital networks, health authorities), and project scale.
• B+H Architects: Toronto-headquartered global architecture firm with strong healthcare and mixed-use development practices. Competes directly with Cumulus in healthcare master planning and complex urban development projects.
• Moriyama & Teshima Architects: Toronto-based architecture firm with comparable healthcare, institutional, and civic portfolio including major hospital and academic projects. Long-standing Toronto competitor in the institutional healthcare and public infrastructure segments.
• DIALOG: Canadian architecture, engineering, and design firm with multi-sector practice including healthcare, mixed-use, and heritage. Operates in similar Canadian markets with overlapping service offerings in healthcare and community planning.

Broad incumbents

• IBI Group: Toronto-based global architecture, engineering, and consulting firm with broader service portfolio. Overlaps with Cumulus on healthcare, commercial, and public infrastructure but at greater scale and broader scope.
• Stantec: Global design and engineering firm with significant Canadian healthcare and institutional architecture practice. Competes for large-scale institutional and infrastructure projects where Cumulus also bids.
• HDR Inc. Global architecture and engineering firm with one of the largest dedicated healthcare practices worldwide. Comparable to Cumulus on healthcare design specialization but at substantially greater scale and geographic reach.
• Perkins&Will: Global architecture firm with renowned healthcare practice and significant Canadian presence. Directly comparable healthcare design expertise but with broader international footprint and larger project capacity.
• HOK: Global architecture firm with major healthcare and institutional practice. Comparable healthcare design sophistication and complex project delivery, with substantially larger scale and international reach than Cumulus.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks4 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/cumulus-architects-inc-
• Instagraminstagram.com/cumulusarchitects
• Xx.com/cumulusarch
• Facebookfacebook.com/cumulusarchitects

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cumulus Architects