What Architectural Alliance does

Architectural Alliance is a full-service architectural design firm founded in 1987, headquartered in Wilmington, Delaware with a second office in Exton, Pennsylvania. The firm serves clients across the Mid-Atlantic region (Delaware, Pennsylvania, New Jersey, and Maryland) and delivers design services across five core practice areas: residential (single/multi-family and affordable housing), commercial (retail, hospitality, corporate, mixed-use), institutional (educational, healthcare, religious, community), historic preservation and adaptive reuse, and master planning.

The firm's technical capabilities are built on conventional architectural design tooling augmented by Building Information Modeling (BIM) for three-dimensional modeling, LEED certification processes led by LEED AP-credentialed architects, and Building Performance Institute (BPI)-certified energy conservation surveying and testing. The technical staff includes AIA-registered architects with multi-state registrations and an Architect Emeritus, supporting both new construction and restoration/adaptive reuse projects.

Architectural Alliance operates a professional services, project-based revenue model with quote-based fees tied to project scope and complexity. The firm acquires work through direct client engagement, RFP/RFQ responses, and professional referrals, and maintains an active regional developer pipeline (Delaware Valley Development Company, The Ingerman Group) alongside institutional clients such as WSFS Bank, Christiana Care, Rosemont College, and charter schools. In February 2026, the firm was acquired by The Stonewall Group, a national architecture platform, and continues to operate under its established brand and current principals while gaining access to Stonewall's national platform and expanded resources.

Name

Architectural Alliance

Legal name

Architectural Alliance, Inc.

Website

https://archalli.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

11–50 employees

Short description

Architectural Alliance is a Wilmington, Delaware-based full-service architectural firm founded in 1987 that delivers design, historic preservation, BIM, and LEED/BPI-certified energy services to residential, commercial, institutional, and developer clients across the Mid-Atlantic region.

Ownership category

akta.pro rank

Product category

Architectural Design Services

NAICS

Architectural Services (541310), Architectural Services (54131)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Architectural Reconfiguration & Structural Alterations (HSAPAEAB), Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Architectural design services
• Historic preservation architecture
• Affordable housing design
• Commercial building architecture
• Institutional facility design

Headquarters

HQ city

Wilmington

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural Design Services: Full-service architectural firm providing design services across multiple market sectors including affordable housing, retail, hospitality, mixed-use development, commercial, corporate, institutional, religious facilities, educational, healthcare, community centers, athletic facilities, historic renovation/adaptive re-use, residential, and sustainable design.
2. New Construction Design: Design services for new construction projects including residential, commercial, and institutional buildings.
3. Restoration and Adaptive Reuse: Specialized design services for restorations and adaptive reuse projects, particularly in historic preservation.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Architectural Alliance is a full-service architectural design firm providing professional design services for new construction and restoration/adaptive reuse projects. The firm serves residential, commercial, institutional, historic preservation, and master planning clients across the Mid-Atlantic region, delivering work from concept through construction administration. Practice areas include affordable housing, single/multi-family residential, retail, hospitality, mixed-use, educational, healthcare, religious, and community facilities, supported by LEED-certified and BPI-certified staff.

Product overview

Architectural Alliance is a full-service architectural firm founded in 1987, offering a comprehensive range of architectural design services. The firm's core offering encompasses residential architecture (single/multi-family housing, affordable housing), commercial architecture (retail, hospitality, corporate), institutional design (educational, healthcare, religious facilities), historic preservation and adaptive reuse, and master planning. The company operates from offices in Wilmington, Delaware and Exton, Pennsylvania, serving clients across the Mid-Atlantic region including Delaware, Pennsylvania, New Jersey, and Maryland. Notable project types include mixed-use developments, urban infill projects, historic restoration, and community planning. The firm has developed particular expertise in sustainable design practices and LEED-certified projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Full-service architectural design services for residential, commercial, historic preservation, institutional, and master planning projects, including both new construction and restoration/adaptive reuse. Delivered to developers, institutions, property owners, and government entities across the Mid-Atlantic region.

Quantifiable outcome

• 2010 Best Multi-Family Residential Award by Chestertown Planning Commission for Calvert Heights development
• +1 more outcomes

Named customers9 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

Feature3 records

Partnerships

Three partnerships are on record, tiered core and ongoing.

• The Stonewall GroupcoreStrategic or Co-development Partner · 16 February 2026The Stonewall Group, a national architecture platform firm headquartered in Lafayette, Louisiana, acquired Architectural Alliance in February 2026. The acquisition establishes Stonewall's foothold in Delaware and expands its presence across the Mid-Atlantic region. Architectural Alliance continues operating under its existing brand and leadership team while gaining access to Stonewall's national platform, operational support, and additional resources. The acquisition enhances Stonewall's capabilities in urban infill, historic restoration, mixed-use development, institutional design, and residential architecture.
• Delaware Valley Development CompanyongoingChannel Partner/ Reseller/ DistributorDelaware Valley Development Company (DVDC) is a recurring development partner on multi-family residential projects. Founded in 1999, DVDC creates and manages communities with an unwavering commitment to quality housing. Projects include Granite Ridge (112 apartments in Kennett Square, PA) and other residential communities in the Mid-Atlantic region.
• The Ingerman GroupongoingChannel Partner/ Reseller/ DistributorThe Ingerman Group, founded by M. Brad Ingerman in 1988, is a leading developer, builder, and manager of award-winning multifamily communities throughout the Mid-Atlantic region. Responsible for development of more than 100 projects representing 8,400 units with total development costs exceeding $1.4 billion. Projects include Colony South (78 townhomes in Milford, DE) completed in 2008 with construction cost of $7.2 million.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Bernardon: Pennsylvania-based architecture, interior design, and planning firm. Competes directly in the Mid-Atlantic market on mixed-use, residential, commercial, and institutional projects with comparable size and service offerings.
• JMT Architecture: Mid-Atlantic architecture subsidiary of Johnson, Mirmiran & Thompson. Comparable multi-office regional firm serving transportation, institutional, and commercial clients with overlapping design services.
• L2Partridge: Mid-Atlantic architecture and engineering firm with offices in Pennsylvania and Delaware. Comparable boutique platform offering integrated design services across residential, commercial, and institutional sectors, often serving similar regional developers.
• Spillman Farmer Architects: Pennsylvania-based architecture firm with strong higher education, healthcare, and religious institutional practice. Directly comparable in serving institutional clients in the Mid-Atlantic with similar project scales and collaborative design approach.
• USA Architects: New Jersey-based architecture firm serving public-sector, educational, and institutional clients. Comparable mid-sized practice with overlap in K-12, charter school, and institutional design that mirrors Architectural Alliance's Chester/Camden charter school portfolio.
• ARM Group: Mid-Atlantic architecture, engineering, and environmental services firm based in central Pennsylvania. Competes in commercial, residential, and institutional design with similar integrated design-build service model.
• EwingCole: Philadelphia-based architecture, engineering, and planning firm. Directly comparable as a Mid-Atlantic design practice serving commercial, institutional (healthcare, education), and cultural clients with similar scale and project mix.
• Becker Morgan Group: Delaware-based full-service architecture and engineering firm with offices across the Mid-Atlantic. Directly competes with Architectural Alliance in residential, commercial, and institutional design, serving many of the same regional developers and institutional clients.

Broad incumbents

• The Stonewall Group: National architecture platform and parent company of Architectural Alliance since February 2026. Directly comparable as a multi-office architectural services consolidator with overlapping service lines in urban infill, historic restoration, mixed-use, institutional, and residential architecture.

Regional players

• George, Miles & Buhr (GMB): Mid-Atlantic architecture and engineering firm based on the Eastern Shore (Salisbury, MD). Comparable full-service practice with overlap in commercial, institutional, and residential design, primarily serving the Delmarva Peninsula and surrounding region.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/architectural-alliance-inc.

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 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 Architectural Alliance