What Galbraith Carnahan Architects does

Galbraith Carnahan Architects (GCA) is a privately held Wisconsin-licensed LLC operating as a full-service architecture firm from a single headquarters in Wauwatosa, Wisconsin (Milwaukee suburb), with a staff of approximately 11 including two named partners, Joe Galbraith (AIA) and Nick Carnahan. The firm provides architectural design services across five practice verticals: Residential, Multi-Family, Commercial, Community & Recreation, and Hospitality, supplemented by a sub-practice in Historic Preservation and Adaptive Reuse that constitutes its primary competitive differentiator. Its portfolio includes converting 1880s commercial storefronts, 1940s bank buildings, Cold War Nike missile bases, and dilapidated service garages into functional modern spaces, alongside custom single-family homes, a 138-unit senior living facility, a 25-acre master-planned neighborhood redevelopment, and a range of cafes, breweries, and food halls across Wisconsin and one project in Dubuque, Iowa.

GCA's underlying technical competencies center on structural stabilization of historic buildings, integration of modern building systems within preserved envelopes, sustainable design (passive solar orientation, super-insulated envelopes, Shou Sugi Ban siding), and custom architectural features such as roof monitors and suspended steel stairways. The firm operates a project-based professional services model with quote-based fees tied to project scope, capturing residential budgets from under $100K to commercial/community projects exceeding $10M. Engagement is direct client-facing with no intermediaries: homeowners, SMB hospitality operators, real estate developers, and government entities (Wisconsin DNR, Waukesha Parks) initiate contact through website forms, phone, or email. The go-to-market relies on a content-led portfolio website, an active social media presence (Houzz, Instagram, Facebook, LinkedIn), consistent professional photography (Ryan Hainey Photography), and a sustained award track record from AIA Wisconsin, the City of Milwaukee Mayor's Design Awards, and Wisconsin Park and Recreation Association.

Name

Galbraith Carnahan Architects

Legal name

Galbraith Carnahan Architects, LLC

Website

https://galbraithcarnahan.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Galbraith Carnahan Architects is an 11-person Wisconsin-based architecture firm delivering residential, multi-family, commercial, community, and hospitality design with a recognized specialty in historic preservation and adaptive reuse across the Milwaukee region.

Ownership category

akta.pro rank

Product category

Architectural Design Services

NAICS

Architectural Services (54131)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Architectural Reconfiguration & Structural Alterations (HSAPAEAB)

Keywords

• Architecture design services
• Adaptive reuse architecture
• Historic preservation design
• Residential architecture firm
• Sustainable building design

Headquarters

HQ city

Wauwatosa, Wisconsin

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architecture and Design Services: GCA generates revenue through architecture and design service fees for residential, commercial, hospitality, community, and multi-family projects. Services include new construction, renovations, adaptive reuse, and historic preservation. Projects range from small residential additions to large-scale community developments.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Galbraith Carnahan Architects is a Milwaukee-based architecture firm delivering architectural design services for residential, commercial, hospitality, community, and multi-family projects ranging from $100K to over $10M. The firm specializes in adaptive reuse and historic preservation, transforming existing structures (e.g., 1880s commercial buildings, 1940s banks, 1956 Nike missile bases) for new purposes while preserving historical character. Services include new construction, renovations, master planning, and sustainability-focused design integrating passive solar strategies and environmentally conscious materials.

Product overview

Galbraith Carnahan Architects (GCA) is an architecture firm offering comprehensive architectural design services organized around distinct practice areas: Residential Architecture (single-family homes, restorations, additions), Multi-Family Architecture (senior living, townhomes, mixed-use), Commercial Architecture (offices, retail), Community & Recreation Architecture (parks, community centers), and Hospitality Architecture (restaurants, breweries, cafes). The firm specializes in Historic Preservation and Adaptive Reuse, transforming existing structures for new purposes. GCA also provides Master Planning services for large-scale urban redevelopment and Sustainability-Focused Design incorporating passive solar and eco-friendly materials. The portfolio includes over 40 named projects spanning residential, commercial, hospitality, and community sectors across Wisconsin and the Midwest.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Architecture Services Architecture design services for single-family homes, including new construction, restorations, and additions, exemplified by projects such as Gallery Shed, Urban Loft, Prairie House, Custom Eco Home, and Urban Farmhouse. Targeted at individual homeowners seeking custom residential design.
• Multi-Family Architecture Services Design services for multi-unit residential developments including senior living communities, townhomes, and mixed-use buildings such as Artalia Bayside, The Westerly, Union Green, and Waters Edge. Targeted at real estate developers and senior living operators.
• Commercial Architecture Services Design services for office complexes, retail environments, and commercial facilities including Fiddleheads Coffee Tosa, Slo Food Market, and commercial tenant improvements. Targeted at commercial property owners and businesses.
• Community & Recreation Architecture Services Design services for parks, community centers, and recreation facilities including White Mound County Park, Shechem, Hillcrest Park, Hillside Neighborhood, and Lapham Lodge. Targeted at municipalities, parks departments, and community organizations.
• Hospitality Architecture Services Design services for hotels, restaurants, breweries, cafes, and hospitality venues including Lion's Tail Brewery, North Avenue Market, Idyll Coffee Roasters, Pipsqueak Wine, and Convivium Urban Farmstead. Targeted at hospitality businesses including restaurants, cafes, breweries, wineries, and boutique hotels.
• Historic Preservation & Adaptive Reuse Services Specialized services for preserving historic structures and adapting existing buildings for new uses, including The Bindery, Log Cabin office, Urban Loft, Station 1846, and Hillcrest Park (former Nike missile base). Targeted at clients seeking to preserve, restore, or adaptively reuse historic structures for modern purposes.
• Master Planning Services Large-scale urban planning and neighborhood redevelopment planning services, exemplified by the Hillside Neighborhood 25-acre master planning project in Milwaukee. Targeted at developers and municipal sponsors undertaking large-scale community redevelopment.
• Sustainability-Focused Design Services Environmentally conscious design approach incorporating passive solar strategies, super-insulated envelopes, and sustainable materials exemplified by projects like Custom Eco Home with radiant heat and Shou Sugi Ban siding. Targeted at clients who prioritize energy-efficient, eco-friendly architecture.

Quantifiable outcome

• Multiple award recognitions including WPRA 2022 Park Design Award, 2025 AIA Wisconsin Design Awards, Mayor's Design Awards, and The Daily Reporter Top Projects

Named customers11 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Outside ArchitecturecoreStrategic or Co-development PartnerGCA partnered with Outside Architecture on the Urban Loft project - an adaptive reuse of 1880s commercial storefronts into a private residence in Milwaukee. The collaboration reinvigorated two dilapidated historic buildings that were slowly collapsing from decades of neglect.
• O&O StudiominorStrategic or Co-development PartnerO&O Studio provided photography services for the North Avenue Market project, documenting the completed adaptive reuse of a 1940s bank building into a community gathering space and food hall.
• Design Theory 19coreStrategic or Co-development PartnerGCA collaborated with Design Theory 19 on the Station 1846 project, with the client bringing on Design Theory 19 for interior design and fixture selection. The collaborative team guided by shared vision transformed a dilapidated automobile service garage.
• Friends of Lapham PeakcoreStrategic or Co-development PartnerGCA worked with Friends of Lapham Peak to envision and design Lapham Lodge - a new 5,000 sq. ft. facility replacing the existing Evergreen Shelter at Lapham Peak. The collaboration addressed the evolving recreational needs of the park.
• Wisconsin Department of Natural ResourcescoreStrategic or Co-development PartnerGCA collaborated with the Wisconsin DNR on the Lapham Lodge project at Lapham Peak. The DNR was instrumental in the park development, and the new facility was designed to meet current levels of use and the range of activities hosted at Lapham Peak.
• Ryan Hainey PhotographyminorStrategic or Co-development PartnerGCA consistently works with Ryan Hainey Photography for professional project documentation, including numerous projects such as Lapham Lodge, North Avenue Market, Idyll Coffee Roasters, Pipsqueak Wine, and others.
• Waukesha Parks, Recreation, and ForestrycoreStrategic or Co-development PartnerGCA worked with the Waukesha Parks, Recreation, and Forestry departments to target the largest remaining Nike missile support structure for conversion into Hillcrest Park - a new open-air park pavilion.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Bray Architects: Milwaukee-area architecture firm specializing in residential, multi-family, and adaptive reuse projects. Closely comparable niche and regional footprint to GCA.
• Korb + Associates Architects: Milwaukee-area architecture firm of similar scale focused on custom residential, historic preservation, and community projects. Highly comparable in size, regional focus, and service mix to GCA.
• MKE Architects (formerly Workshop Architects): Milwaukee-headquartered architecture firm with a comparable portfolio in residential, commercial, and adaptive reuse. Operates in the same regional market with similar small-firm structure.
• Venture Architects: Milwaukee-area architecture firm with practices in residential, hospitality, and community projects. Comparable regional peer at similar firm scale.
• Rinka Chung Architecture: Milwaukee- and Madison-based boutique architecture firm focused on residential, hospitality, and adaptive reuse with sustainability emphasis. Comparable in size, design philosophy, and project types.
• La Dallman Architects: Milwaukee-based architecture firm with similar focus on award-winning residential, hospitality, and adaptive reuse work. Comparable in scale and design philosophy.
• Johnsen Schmaling Architects: Wisconsin-based architecture firm recognized for residential, adaptive reuse, and award-winning small-scale commercial projects. Comparable in size, design-led approach, and Midwest regional focus.

Broad incumbents

• HGA Architects: Large Minnesota-headquartered architecture, engineering, and planning firm with offices in Milwaukee. Directly competes with GCA for community, civic, higher education, and adaptive reuse projects across the Upper Midwest at a much larger scale.
• Eppstein Uhen Architects: Milwaukee-headquartered architecture firm with broad practice across workplace, education, healthcare, and community. Competes with GCA for developer and institutional clients in the Milwaukee region.
• Engberg Anderson: Milwaukee-based architecture firm with deep practice in historic preservation, adaptive reuse, and community projects. Overlaps significantly with GCA's preservation and community portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/galbraithcarnahan
• LinkedInlinkedin.com/company/j-galbraith-architects-llc
• Instagraminstagram.com/galbraithcarnahan

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Galbraith Carnahan Architects