What O4A | Office for Architecture does

O4A | Office for Architecture is a Vancouver, British Columbia-based architectural practice founded in 2012 by Mike Mammone. The firm operates with a team of 14 professionals delivering design services across civic, cultural, educational, residential, workplace, and adaptive reuse project typologies. Its client base is heavily weighted toward public-sector and community organizations, including the Cities of Delta, Surrey, and Richmond; Metro Vancouver; Fisheries and Oceans Canada; the Province of British Columbia; the Britannia Beach Historical Society; SASCU; and GardenWorks, indicating a go-to-market focused on institutional and municipal procurement rather than private commercial development.

The firm's business model is fee-based professional services, generating revenue through project commissions won via direct selection, request-for-proposals, and design competitions. Work is delivered by an integrated in-house team covering design, technical documentation, and project administration. The practice has accumulated award recognition across multiple provincial and national programs (Heritage BC, Canadian Museum Association, BC Wood Council), and in February 2026 rebranded from O4A to O4, coinciding with a Heritage BC 45th Anniversary Sponsorship that signals continued investment in the heritage and conservation segment. The practice has also pursued design competitions exploring new housing typologies and maintains active Indigenous community-led project work, indicating selective broadening of its vertical mix while retaining a British Columbia geographic focus.

Name

O4A | Office for Architecture

Legal name

O4 Architecture Ltd

Website

https://o4architecture.ca

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

O4A | Office for Architecture is a Vancouver-based architectural practice founded in 2012, serving municipal, provincial, and federal public-sector clients as well as community organizations across British Columbia through civic, cultural, educational, residential, and adaptive reuse projects.

Ownership category

akta.pro rank

Headquarters

HQ city

Vancouver

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Architecture and Design Services: Professional architecture fees for design, planning, and project delivery services for public and institutional clients

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

O4 Architecture Ltd (formerly O4A) is a Vancouver-based architectural practice founded in 2012 that delivers architecture, interior design, master planning, heritage rehabilitation, and design competition services. The firm serves civic, cultural, institutional, and private-sector clients across Canada and internationally, with a small multidisciplinary team led by founder Mike Mammone.

Product overview

O4A (now O4) is an architecture practice providing comprehensive design services rather than a software product platform. The firm's offerings center on architectural and interior design for public, civic, cultural, and institutional clients across Canada. Core services include architecture and design services (civic, cultural, educational, residential, workplace, adaptive reuse), interior design, master planning, and heritage rehabilitation. The practice also engages in design competitions and publishes thought leadership through its 'Reflections' platform. Projects span community halls (Strawberry Hill), cultural facilities (Richmond Cultural Centre Annex), recreation centers (Winskill Aquatic Centre, North Delta Track Fieldhouse), institutional buildings (Pacific Science Enterprise Centre), office interiors (BCUC, CLBC), and heritage sites (Britannia Mine Museum, Seine Net Loft). The firm was founded in 2012 and rebranded from O4A to O4 in February 2026.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Full-service architectural design for civic, cultural, institutional, and private-sector buildings; delivered as a contracted professional service.
• Interior Design Interior design services integrated with the firm's architectural projects, addressing finishes, spatial layout, and fit-out for built environments.
• Master Planning Long-range site and campus master planning for civic, cultural, and institutional clients, including urban design and phased development strategies.
• Heritage Rehabilitation Restoration, rehabilitation, and adaptive reuse of heritage buildings, including work on designated heritage structures and conservation-oriented renovations.
• Design Competitions Participation in and preparation of entries for architectural design competitions for public and institutional clients, including invited and open formats.

Quantifiable outcome

• Heritage BC Honour Award in Indigenous and Diverse Cultures category for Totest Aleng (2026)
• +2 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Heritage BCcoreGTM or Marketing Partner · 1 January 2026O4 Architecture served as the 45th Anniversary Sponsor of Heritage BC's 2026 Annual Conference, Living Connections: People, Place & Stewardship. The event brought together heritage professionals, Indigenous leaders, and community advocates across British Columbia to explore cultural heritage stewardship.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• HCMA Architecture + Design: Vancouver-based architecture and design firm with a civic, cultural, and community-oriented portfolio. Most comparable Vancouver peer to O4, with overlapping client base in BC municipalities and cultural institutions.
• Architecture49: Canadian architecture firm with national reach focused on civic, recreational, and institutional buildings. Directly comparable to O4 in segment focus (community recreation, cultural facilities, public infrastructure) and Canadian public-sector client base.
• DIALOG: Canadian integrated design practice with offices across Canada delivering civic, cultural, and institutional architecture. Directly comparable to O4 in target client base (municipalities, cultural institutions) and project typologies, though at a larger scale.
• Revery Architecture (formerly Bing Thom Architects): Vancouver-headquartered architecture firm with an internationally recognized civic and cultural portfolio. Comparable to O4 in Vancouver base and civic/cultural focus, though at larger scale and project scope.
• Diamond Schmitt Architects: Toronto-based Canadian architecture firm with a strong civic, cultural, and institutional portfolio (libraries, museums, performing arts centers). Comparable to O4 in serving public-sector clients with complex, high-visibility projects, though significantly larger.
• Moriyama & Teshima Architects: Toronto-based Canadian architecture firm with strong civic, cultural, and institutional portfolio including museums and heritage projects. Comparable to O4 in civic/cultural focus and Canadian institutional client base.

Regional players

• Patkau Architects: Vancouver-based architecture practice known for cultural and civic buildings. Comparable in Vancouver location and institution/cultural focus, though at a more established and selective scale.
• Leckie Studio Architecture + Design: Vancouver-based architecture studio with civic and cultural portfolio. Comparable peer in scale and Vancouver geographic focus, with similar typology emphasis on community and public-oriented projects.

Broad incumbents

• Stantec Architecture: Global design and engineering firm with Canadian architecture practice serving civic and institutional clients. A broader incumbent with overlapping public-sector capabilities but much wider service portfolio and scale.
• Perkins&Will: Global architecture firm with Canadian studios serving civic, cultural, and institutional clients. Broader incumbent with overlapping capabilities but operates at much larger scale than O4.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 O4A | Office for Architecture