IEI Group

What IEI Group does

IEI Group is a Philadelphia-based architecture, interior design, and project management firm founded circa 1984 by Rosemary Español. The firm delivers full-scope architecture services spanning feasibility studies, building surveys, schematic design, zoning documents, design development, construction documents, building permitting, and construction administration, complemented by interior design and project management. Specialized add-on offerings include LEED consulting, historic restoration, and bidding/negotiation support. The firm's customer base is concentrated in multi-family residential and commercial development with growing exposure to public-sector and corporate design engagements, delivered through direct enterprise field sales with senior leadership maintaining active client relationships.

The firm's underlying technology footprint centers on 3D visualization — rendered images, interactive tours, animated videos, and rendered floor plans — which became part of the offering via the February 26, 2024 merger with Designblendz. IEI Group operates under Designblendz's ownership post-merger, with Rosemary Español and Alan Hoffmann remaining engaged in management of the combined entity led by CEO Brian Corcodilos. Leadership depth is a defining asset: Rosemary Español has 40 years of firm-building tenure and managed over 3 million square feet of contracts in the past year, Alan Hoffmann brings public-sector design background from Vitetta Architecture and Engineering, and Mark Coan (AIA, NCARB) has delivered projects with budgets exceeding $200 million.

Revenue mechanics are professional services — project-based and quote-driven, with pricing determined by scope, complexity, and square footage — billed against multi-stage architectural engagements rather than subscription or productized SaaS. The firm was recognized by The Business Journal as one of the largest woman-owned businesses in the Philadelphia area. Geographic scope is regional (Philadelphia market), and the company is privately held with no disclosed funding rounds or revenue figures.

Name

IEI Group

Legal name

IEI Group

Website

https://ieigroup.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

IEI Group is a Philadelphia-based architecture, interior design, and project management firm serving multi-family, commercial, and public-sector clients across the Philadelphia region, now operating as part of Designblendz following a February 2024 merger.

Ownership category

akta.pro rank

Headquarters

HQ city

Philadelphia

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, Infrastructure

Revenue model

1. Architecture and Design Services: Professional services revenue from architecture, interior design, and project management engagements. Projects range from feasibility studies through construction administration, billed on a project basis with typical contract values in the millions based on square footage managed.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

IEI Group provides architecture, interior design, and project management services for multi-family, commercial, and public sector clients. Offerings span feasibility studies, building surveys, schematic design, design development, construction documents, permitting, and construction administration, with complementary specializations in historic restoration, LEED consulting, and 3D visualization (rendered images, interactive tours, animated videos, and rendered floor plans).

Product overview

IEI Group is an architecture and interior design firm offering a unified suite of professional design services. The company's core offerings include architecture services, interior design, and project management, complemented by specialized capabilities in historic restoration and LEED consulting. With the merger with Designblendz completed in February 2024, IEI Group's services are now integrated with 3D visualization capabilities (3D rendered images, interactive tours, animated videos, rendered floor plans) and expanded public sector design expertise. The firm manages over three million square feet of contracts and has delivered projects with budgets exceeding $200 million.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services Comprehensive architectural services including feasibility studies, building surveys, schematic design, zoning documents, design development, construction documents, building permitting, and construction administration for multi-family, commercial, and public sector projects.
• Interior Design Interior design services for multi-family, commercial, and corporate projects, including space planning, workplace transformations, and brand-aligned interior environments.
• Project Management Project management services for architecture and design projects, managing contracts across large square-footage scopes.
• 3D Visualization Services 3D visualization services including 3D rendered images, 3D interactive tours, 3D animated videos, and rendered floor plans for architecture and interior design projects.
• Historic Restoration Historic restoration services supporting the preservation of heritage buildings in conjunction with broader architecture and design engagements.
• LEED Consulting LEED (Leadership in Energy and Environmental Design) consulting services supporting sustainable building certification for new construction and renovation projects.
• Public Sector Design Architecture, interior design, and engineering services for government facilities and public sector projects, supported by leadership with prior public sector firm experience.

Quantifiable outcome

• Managed over 3 million square feet of contracts in a single year
• +1 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• DesignblendzcoreStrategic or Co-development Partner · 26 February 2024IEI Group merged operations with Designblendz on February 26, 2024, creating a combined entity with expanded capabilities in architecture, interior design, project management, and 3D visualization. The merger raises the standard of architectural and design services by combining IEI Group's 40+ years of prominence and public sector expertise with Designblendz's innovative 3D visualization technology. Leadership including Rosemary Español and Alan Hoffmann remain engaged in management of the new venture, while Brian Corcodilos serves as CEO of the combined entity.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• HOK: Global design, architecture, and engineering firm with deep public-sector and commercial expertise. Comparable as a broad incumbent offering integrated architecture and interior design services across large-scale programs.
• Stantec: Global design and engineering firm with an integrated architecture practice. Comparable as a broad incumbent offering architecture, interior design, and project management across commercial, public-sector, and multi-family projects.
• Perkins&Will: Global architecture and design firm with strengths in healthcare, education, commercial, and civic projects. Comparable as a broad incumbent delivering integrated architecture and interior design on complex commissions.
• Gensler: Global architecture and design firm offering comprehensive architecture, interior design, and strategic consulting. Comparable as a broad incumbent with overlapping capabilities across commercial, residential, and public-sector projects.

Regional players

• EwingCole: Philadelphia-based architecture and engineering firm serving commercial, healthcare, education, and public-sector clients. Comparable as a regional architecture peer with overlapping Philadelphia-area market focus.
• DIGSAU: Philadelphia-based architecture and design practice delivering commercial, residential, and adaptive reuse projects. Comparable as a regional architecture peer serving the same Philadelphia market.

Direct peers

• Designblendz: Architecture and 3D visualization firm that merged with IEI Group in February 2024. Direct overlap in architecture, interior design, and 3D rendering for multi-family and commercial clients in the Philadelphia market; now operates as IEI's parent.
• Nelson Worldwide: Architecture and design firm offering integrated architecture, interior design, and branding services. Directly comparable to IEI Group in delivering multi-family, commercial, and corporate design projects.
• Neoscape: Architectural visualization and design firm producing 3D renderings, animations, and interactive experiences. Comparable as a direct peer offering the 3D visualization capability IEI gained through the Designblendz merger.
• IA Interior Architects: Global firm focused on interior architecture and workplace design for enterprise clients. Directly comparable to IEI Group's interior design and corporate workplace offerings.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/IEIGroup
• Facebookfacebook.com/IEIGroup
• LinkedInlinkedin.com/company/iei-group-ltd.

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 IEI Group