Sizeler Thompson Brown Architects

What Sizeler Thompson Brown Architects does

Sizeler Thompson Brown Architects (STBA) is a full-service architectural design firm headquartered in New Orleans, Louisiana, founded in 1965 by Billy Sizeler. The firm provides architectural design, interior design, master planning, building assessment/recovery/repair, and tenant build-out services across four primary verticals: healthcare (hospitals, emergency departments, surgery centers, cancer centers, outpatient clinics), education (K-12 schools, universities, libraries, training centers), government and civic (libraries, courthouses, administrative buildings), and commercial/recreation (sports stadiums, wellness facilities). A dedicated Healthcare Studio concentrates the firm's domain expertise, with multiple team members holding ACHA Fellow, EDAC, LEED, and WELL AP credentials supporting evidence-based, hurricane-resilient, and sustainability-focused design. The firm is led by a three-principal team (Allen Ohlmeyer as President and Managing Principal, plus Anna Ghelase and Steve Templet as Principals) and operates with approximately 12 named professionals across architectural, interior design, and administrative functions.

The firm's business model is professional-services based: revenue is generated through project-based fees on customized engagements, ranging from small interior renovations to multi-story hospital expansions and large joint-venture civic commissions (notably the 1.9 million sf Louisiana Superdome post-Katrina renovation). Pricing is determined per project by scope, complexity, and square footage, with multi-year contract cadences common for master planning and phased healthcare programs. Customer acquisition relies on direct enterprise relationships, repeat institutional clients, and competitive selection within the Louisiana healthcare and education procurement ecosystem, with no channel partners or standardized product offerings. Marketing is primarily through a professional digital presence (LinkedIn, Instagram, Facebook), case studies, and earned media in trade publications such as Health Facilities Management and Healthcare Design Magazine. Geographic operations are concentrated in the Greater New Orleans Area and broader Louisiana region, with a 40-plus-year brand history aligned to the city's post-Katrina rebuilding era.

Name

Sizeler Thompson Brown Architects

Legal name

Sizeler Thompson Brown Architects

Website

https://sizeler.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

11–50 employees

Short description

Sizeler Thompson Brown Architects is a New Orleans-based, full-service architectural firm founded in 1965, delivering healthcare, education, government, and recreation facility design — including a dedicated Healthcare Studio — to institutional clients across Louisiana on a project-based professional services model.

Ownership category

akta.pro rank

Product category

Architectural Design Services

NAICS

Architectural Services (54131), Interior Design Services (54141)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Sustainable/Green Building & LEED Consulting (BPAHAKAG)

Keywords

• Healthcare architecture design
• Educational facility design
• Master planning services
• Interior design services
• Sustainable building design

Headquarters

HQ city

New Orleans

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, Infrastructure, Marketing or Sales

Revenue model

1. Architecture and Design Services: Full-service architectural design from inception through completion including programming, new construction, interior design, space planning, and master planning. Revenue generated through project-based fees for design services on healthcare, education, government, civic, and commercial projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Sizeler Thompson Brown Architects is a full-service architectural design firm delivering programming, new construction documentation, interior design, master planning, building assessment and recovery, and tenant build-out services for healthcare, education, community/civic, and recreation facilities. The firm operates a dedicated Healthcare Studio specializing in hospitals, surgery centers, emergency departments, cancer centers, outpatient clinics, nursing schools, and medical office buildings, with projects primarily executed across the Greater New Orleans Area and surrounding Louisiana parishes.

Product overview

Sizeler Thompson Brown Architects is a full-service architectural design firm based in New Orleans offering a unified suite of design services. The core offerings include Architectural Design Services (programming and new construction), Interior Design (space planning, custom millwork, materials, FF&E, brand integration), Master Planning (feasibility studies, phasing, site assessment), Building Assessment/Recovery/Repair, and Tenant Build-out services. The firm operates a dedicated Healthcare Studio specializing in world-class healthcare facilities. Project portfolios span Healthcare (hospitals, emergency departments, surgery centers, cancer centers, outpatient clinics, nursing schools), Education (K-12 schools, universities, libraries, training centers), Community and Civic (government buildings, libraries, courthouses, fire stations, community centers), and Recreation (sports stadiums, performance centers, wellness facilities).

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Full-service architectural design encompassing programming and new construction documentation for healthcare, education, community/civic, and recreation facilities. Delivered for enterprise clients across the Greater New Orleans Area and Louisiana.
• Interior Design Interior design services including space planning, visioning, custom millwork, materials selections, furniture fixtures and equipment (FF&E), artwork coordination, renderings and flythroughs, and brand integration for institutional and commercial clients.
• Master Planning Strategic master planning services including feasibility studies, phasing, site assessment, and 3D visualizations for healthcare, education, civic, and commercial campuses.
• Building Assessment, Recovery, and Repair Building assessment services including scope alignment, building code review and analysis, federally funded project oversight, and ADA compliance review for existing buildings in need of modernization or disaster repair.
• Tenant Build-out Tenant build-out services including BOMA analysis, tenant improvements, and field verification for commercial tenant fit-out projects.
• Healthcare Studio Dedicated healthcare studio specializing in world-class healthcare facilities, including hospitals, surgery centers, emergency departments, cancer centers, outpatient clinics, nursing schools, and medical office buildings. Staffed with EDAC-certified evidence-based design practitioners and ACHA Fellow healthcare architects including the firm's 2022 President of the American College of Healthcare Architects Board of Regents.

Quantifiable outcome

• Slidell Memorial Hospital ED more than doubled previous emergency capacity with 27 private rooms
• +3 more outcomes

Named customers15 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

Feature4 records

Partnerships

Three partnerships are on record, tiered flagship and core.

• Trahan ArchitectsflagshipStrategic or Co-development PartnerJoint venture partner for Louisiana Superdome post-Katrina renovation (1.9 million sf project). STBA was part of a joint venture team consisting of Trahan Architects of Baton Rouge, Billes Architecture of New Orleans, and Ellerbe Becket.
• Ellerbe BecketcoreImplementation/ SI/ Consulting PartnerNational design firm serving as consultant on Louisiana Superdome restoration project, overseeing the 1.9 million sf renovation completed in 9 months.
• Gresham Smith PartnerscoreStrategic or Co-development PartnerCollaborated on St. Bernard Parish Hospital project (100,000 sf replacement hospital funded by CDBG funds).

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Perkins&Will: Global architecture firm with one of the largest dedicated healthcare practices — competes for major hospital systems and master plans nationally, including Louisiana health systems.
• HKS Architects: Large national architecture practice with deep healthcare and education expertise; competes for major Louisiana hospital master plans and institutional commissions.

Direct peers

• Holly & Smith Architects: Louisiana-based architecture firm with healthcare, education, and civic project portfolios — direct regional peer competing for similar Gulf Coast institutional clients.
• WHR Architects: Healthcare-focused architecture firm of similar scale specializing in hospital and outpatient facility design — comparable niche focus and client profile.
• Mathes Brierre Architects: New Orleans-based full-service architecture firm of comparable size serving similar institutional, educational, and civic clients across South Louisiana — direct regional competitor.
• EwingCole: Mid-sized architecture firm specializing in healthcare, education, and science facilities — directly comparable mission, scale, and project type focus.
• Shepley Bulfinch: Architecture firm with a strong healthcare and education practice serving institutional clients — directly comparable in scale, mission, and client segments.
• E4H Environments for Health Architecture: Specialty healthcare architecture firm with deep hospital and outpatient design expertise — the closest pure-play healthcare architecture peer in terms of mission, client base, and project types.

Regional players

• Architecture+: Gulf Coast architecture firm with healthcare and education focus operating in adjacent Louisiana and Texas markets — comparable regional competitor.
• VergesRome Architects: New Orleans-based architecture firm serving institutional and commercial clients in South Louisiana — regional peer competing for similar local commissions.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/STBArchitects
• LinkedInlinkedin.com/company/sizeler-thompson-brown-architects
• Instagraminstagram.com/sizerethompsonbrownarchitects
• Xx.com/stbarchitects

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 Sizeler Thompson Brown Architects