- Barbara Gisel Design
 - Haverford - Offers corporate, health care, hospitality, and residential design. - Brandywine Design
- Wilmington - Services include space planning, furniture arrangement, delivery, installation, and project management.
- Castellina
- Jenkintown - Featuring upscale furniture and accessories, interior design services, and more.
- Commercial Design & Furnishings Inc.
- Reading - Interior design firm and office furnishings dealership.
- CoolDiggs
- Ardmore - Specializes in interior design and related services tailored for companies operating in a dynamic environment.
- Corporate Interiors of Philadelpia Inc
- East Norriton - Provides space planning for offices. Also offers office furniture sales and rentals.
- Ellrich & Fiordimondo LLC
- Riverton - Specializing in custom made furniture for new residential projects and home improvment.
- GBQC Architects
- Philadelphia - Offers a range of architectural and interior design services.
- Hillwood Group, The
- Lawrenceville - Residential interior consulting.
- Impressions Interiors
- Malvern - Providing complete design services for model home merchandising, custom residential, and commercial interiors, including the procurement of furniture and accessories.
- Knowlton Associates
- Haddon Heights - Offers architectural interiors and design.
- Maria Nevelson Interior Design
- Philadelphia - Specializes in residential and commercial interiors.
- Meyer Associates Inc.
- Ardmore - Offers interior design, architectural, feng shui, and other related services to businesses, corporations, and residences.
- Noble - Hampton
- Northfield - Space planning and project management for the corporate, restaurant, and hospitality industries.
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