Interplan

What Interplan does

Interplan Inc is a full-service commercial architecture and interior design firm headquartered in Vienna, Virginia, founded in 1984 by Marc Berman and now operating in its third generation of architects and designers. The firm provides end-to-end design services including test fit planning, concept design and finish selections, full-service interior architectural design, project management, tenant leasing support, existing conditions verification (including laser-based measurement), building repositioning and renovation, lobby and amenity space design, building code and ADA analysis, BOMA area calculations, consulting and due diligence reports, and furniture selection and specifications. Interplan operates an in-house furniture dealership subsidiary called Lines Furniture (established 1990) that supports both internal projects and external clients with furniture procurement.

The firm serves a diversified B2B client base across multiple verticals, with primary emphasis on healthcare and medical facilities, corporate and workplace environments, and specialized environments such as child development centers and science/technology facilities. Named clients include CCI Health Services, EagleBank, RSM US, Brookings Institution, Jones Lang LaSalle, Luminis Health, Holy Cross Hospital, Gray Television, and Mast Labs. The firm maintains active architectural registrations across 18 states and commonwealths, enabling multi-state project delivery while concentrating operational focus on the Washington metropolitan area. Proprietary service capabilities include BOMA-standard area calculations, circadian lighting design, and daylight harvesting system specification for energy efficiency and LEED alignment.

Interplan generates revenue through professional services fees billed on a project basis structured around scope, complexity, and timeline, plus furniture sales and specification revenue through Lines Furniture. The go-to-market model is direct enterprise sales with principals actively engaged in client relationships, complemented by content marketing, social media presence, and community event participation. The firm employs approximately 21 team members including principals, senior project managers, project managers, interior designers, architectural associates, and administrative staff, with no disclosed external funding and founder/family-aligned ownership.

Name

Interplan

Legal name

Interplan Inc

Website

https://interplaninc.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Interplan Inc is a Vienna, Virginia-based commercial architecture and interior design firm founded in 1984, serving healthcare, corporate, and specialized facility clients across the Washington metropolitan area and 18 states, with an in-house furniture subsidiary called Lines Furniture.

Ownership category

akta.pro rank

Headquarters

HQ city

Vienna

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architecture and Design Services: Interplan generates revenue through professional fees for architectural and interior design services. These include concept design, full-service interior architectural design, project management, and construction administration. Services are billed on a project basis with fees structured around project scope, complexity, and timeline.
2. Furniture Sales and Specification: Lines Furniture, the in-house furniture division established in 1990, provides furniture dealership services to support Interplan clients as well as external clients and designers. Revenue generated through furniture sales, specification, and procurement services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Interplan is a full-service commercial architecture and interior design firm delivering concept design, full interior architectural design, project management, construction administration, and furniture specification/procurement services to corporate, healthcare, association, and real estate developer clients. Services span test fit planning, lease negotiation support, building code and ADA analysis, BOMA area calculations, building repositioning/renovation, and lobby/amenity space design, complemented by an in-house furniture dealership (Lines Furniture) established in 1990.

Product overview

Interplan is a full-service commercial architecture and interior design firm offering a comprehensive suite of professional design services. The firm's core offering encompasses Test Fit Plans, Concept Design & Finish Selections, Full Service Interior Architectural Design, Project Management, Tenant Leasing Support, Existing Conditions Verification, Building Repositioning/Renovation, Lobby/Common Area & Amenity Design, Building Code/ADA Analysis, BOMA Area Calculations, Consulting & Due Diligence Reports, and Furniture Selection & Specifications. Interplan operates an in-house furniture division called Lines Furniture (established 1990) that supports both internal design teams and external clients, providing furniture selection, specification, procurement, and installation services. This integrated approach allows Interplan to streamline the design and furnishing process for clients, offering end-to-end solutions from initial space planning through furniture procurement and installation.

Differentiator

Problem solved

Functional benefit

Brands

• Lines Furniture: Full-service furniture dealership established in 1990, housed within the Interplan office, supporting Interplan staff, their clients, and out-of-house clients and designers with furniture selection, specifications, and procurement.

Products and services

• Interplan Architecture and Interior Design Services
• Lines Furniture
• Test Fit Plans
• Concept Design & Finish Selections
• Full Service Interior Architectural Design
• Project Management
• Tenant Leasing Support
• Existing Conditions Verification
• Building Repositioning / Renovation
• Lobby, Common Area & Amenity Design
• Building Code / ADA Analysis
• BOMA Area Calculations
• Consulting & Due Diligence Reports
• Furniture Selection & Specifications

Quantifiable outcome

• Successfully designed 48,000 SF healthcare facility, the largest in Prince George's County, Maryland
• +1 more outcomes

Named customers14 records

Segments7 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

One partnership is on record.

• Mohawk GroupminorStrategic or Co-development Partner · 1 November 2024Interplan partnered with Mohawk Group for the Cosmo Couture fashion show, designing a garment named 'Divine Dawn' inspired by celestial elements and crafted from carpet yarn and vinyl flooring materials. The partnership demonstrated Interplan's creative capabilities and community engagement.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• SmithGroup: DC-headquartered integrated design firm with strong workplace, healthcare, and science & technology practices. Larger but the most direct geographic and sector peer.
• STUDIOS Architecture: Commercial architecture and interiors firm with strong corporate workplace focus. Comparable offering and project-based professional services model to Interplan.
• IA Interior Architects: Specialized commercial interior architecture firm focused on workplace, healthcare, and learning environments. Directly competes with Interplan in interior design services and shares a similar engagement model.
• Hickok Cole (now Page): DC-area architecture and interior design firm historically of comparable size and scope, focused on workplace, healthcare, and multifamily projects. The closest geographic and offering peer to Interplan.
• Ware Malcomb: Mid-sized commercial architecture firm with significant interior design practice serving office, healthcare, retail, and industrial clients. Comparable size and multi-vertical strategy.

Broad incumbents

• HOK: Global design, architecture, and planning firm with corporate workplace and healthcare practices. Larger incumbent with overlapping client base and capabilities.
• Gensler: Largest global design firm with deep workplace, healthcare, and hospitality practices. A broad incumbent that competes for the same enterprise clients Interplan serves.
• Perkins&Will: Global architecture and design firm with significant healthcare and workplace practices. Overlaps with Interplan's vertical expertise but operates at much larger scale.

Regional players

• Moseley Architects: Mid-Atlantic architecture firm with strong healthcare, education, and public-sector practices. Comparable size and regional focus to Interplan.

Others

• Lines Furniture (Interplan subsidiary) — competitor context: Knoll / Herman Miller dealer peers: Major contract furniture dealers and manufacturers (e.g., Herman Miller, Knoll, Haworth) are adjacent ecosystem participants to Interplan's Lines Furniture division; they are not direct design competitors but represent the wholesale channel Interplan's furniture arm competes against.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks4 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/InterplanDC
• LinkedInlinkedin.com/company/interplan-inc-
• Instagraminstagram.com/interplandc

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries1 record

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 Interplan