Office Furniture Solutions, Inc.

What Office Furniture Solutions, Inc. does

Castell (legal entity: Castell, Inc., d/b/a formerly known as Office Furniture Solutions) is a privately held workplace design consultancy and office furniture dealer headquartered in Commerce Township, Michigan. Founded in 1997, the company serves business leaders, developers, brokers, architects, and designers across Southeast Michigan, offering an integrated portfolio that spans new office furniture (via its authorized Teknion dealer relationship and 200+ brand partnerships), curated pre-owned inventory, architectural and space-dividing products, and bespoke custom furniture through its Studio Castell offering. Castell's customer base is geographically concentrated in Michigan but has executed out-of-state projects such as the 78,000 sq. ft. Phoenix Suns headquarters and the 58,000 sq. ft. Mercury Training Facility in Arizona, indicating some national project reach. Named customers span automotive (Marelli, TI Fluid Systems, Gallagher-Kaiser), technology (TomTom, Urban Tech Xchange), energy (Our Next Energy), defense (Eotech), real estate (Sun Communities, Agree Realty), sports, education, legal, and nonprofit sectors.

The company operates no proprietary technology platform; its competitive position is built on a physical infrastructure footprint that includes a 50,000 sq. ft. climate-controlled warehouse in Novi and a 40,000 sq. ft. pre-owned furniture showroom, paired with in-house design, project management, delivery, installation, and facility services (including move/relocation, asset management, and decommissioning). Castell monetizes through three primary revenue streams: one-time furniture sales (new and pre-owned), professional services for workplace design and consulting, and facility/project services — all delivered on a project-based, quote-driven pricing model with multi-year contract cadences. Its go-to-market motion is enterprise field sales, supported by a website, social channels, an extensive project portfolio, and a digital product library hosted through My Resource Library. The business is differentiated in part by a sustainability positioning (pre-owned inventory, Ecologi tree-planting partnership) and by Studio Castell, which provides custom-crafted furniture for brand-driven workspace environments.

Name

Office Furniture Solutions, Inc.

Legal name

Castell, Inc.

Website

https://castellspaces.com

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

Castell is a Southeast Michigan workplace design consultancy and office furniture dealer, offering new and pre-owned furniture, design consulting, and facility services to enterprise clients across automotive, technology, energy, sports, and nonprofit sectors.

Ownership category

akta.pro rank

Headquarters

HQ city

Walled Lake

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Furniture Sales (New and Pre-Owned): The company generates revenue through the sale of new office furniture as an authorized Teknion dealer and other brand partners, as well as pre-owned/refurbished office furniture from their warehouse inventory.
2. Workplace Design & Consulting Services: Revenue from providing workplace design consulting, space planning, and professional services for office interior projects.
3. Facility Services: Additional revenue streams from project management, delivery and installation, asset management and storage, move and relocation services, furniture service and repair, and decommissioning services.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Castell is a workplace design consultancy and office furniture dealer that sells new office furnishings (as an authorized Teknion dealer with 200+ brand partners) and pre-owned office furniture, alongside architectural products such as space-dividing walls, PODS, and acoustical solutions. The firm provides end-to-end commercial interior services including space planning, design consulting, project management, delivery and installation, asset storage, relocation, furniture service/repair, and decommissioning, plus bespoke custom furniture through Studio Castell.

Product overview

Office Furniture Solutions, Inc. (operating as Castell) is a workplace design consultancy and office furniture dealer that offers an integrated portfolio of products and services. The core offerings include Furniture Products (office furnishings, seating, ergonomic accessories from Teknion and 200+ brands), Architectural Products (space-dividing solutions, walls, PODS, acoustical products), and Pre-Owned Office Furniture (workstations, chairs, and community furniture from brands including Teknion, Knoll, and Haworth from their 40,000 sq. ft. showroom). These product lines are complemented by Workplace Design & Consulting services (space planning, strategic design), Facility Services (delivery, installation, project management from their 50,000 sq. ft. warehouse), and Studio Castell (custom bespoke furniture design). The company operates as an authorized Teknion dealer and serves Southeast Michigan with a focus on sustainability through pre-owned furniture programs.

Differentiator

Problem solved

Functional benefit

Products and services

• Furniture Products Full range of new office furnishings including seating, ergonomic accessories, workstations, and desks from Teknion and other manufacturer partners, sold to business clients undertaking office fit-outs and refurbishments in Southeast Michigan.
• Architectural Products Space-dividing solutions including walls, PODS, and acoustical products designed to be flexible, cost-effective, and sustainable, sold to commercial clients as part of interior fit-out projects.
• Pre-Owned Office Furniture Curated selection of high-quality pre-owned office furniture including chairs, desks, workstations, cabinets, and community/collaboration pieces from brands such as Teknion, Knoll, Haworth, Allermuir, OFS, and VIA, sold from a 40,000 sq. ft. showroom and warehouse inventory.
• Workplace Design & Consulting Comprehensive design consulting including space planning, needs research, strategic planning, programming, performance surveys, and test fits for workspace optimization, provided to business clients undertaking office interior projects.
• Facility Services Project management, delivery and installation, asset management and storage, move and relocation services, national fulfillment, furniture service and repair, and decommissioning and recycling, delivered from a 50,000 sq. ft. climate-controlled warehouse for commercial interior projects.
• Studio Castell Bespoke furniture design service for discerning individuals, visionary designers, and brands, creating custom furniture pieces including reception desks, shelving, tables, and wall art tailored to unique workspace requirements.
• Product Library Digital product catalog providing clients and specifiers with access to specialty products from 200+ manufacturer partners across healthcare, higher education, K-12, municipality, automotive dealership, and hospitality sectors.

Named customers19 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

Partnerships

Three partnerships are on record, tiered core and minor.

• TeknioncoreChannel Partner/ Reseller/ DistributorCastell is an authorized Teknion dealer, offering Teknion's diverse portfolio of office furnishings, seating, ergonomic accessories, and architectural products to clients.
• 200+ Industry Brand PartnerscoreChannel Partner/ Reseller/ DistributorCastell partners with over 200 industry-leading brands and manufacturers to provide specialty products for every business sector including healthcare, higher education, K-12, municipality, auto dealers, and hospitality.
• EcologiminorStrategic or Co-development PartnerCastell partners with Ecologi, an environmental action organization, to plant 10 trees for each project booking, contributing to climate positivity.

Scale indicators4 records

Recent moves1 record

Expansion highlights4 records

Broad incumbents

• Teknion: Office furniture manufacturer and Castell's primary brand partner. Competes at the brand level while simultaneously serving as Castell's core product supplier, representing both partner and broad incumbent.
• MillerKnoll: Global office furniture conglomerate (Herman Miller, Knoll, Colebrook Bosson Saunders) offering workplace design consulting and extensive dealer network. Represents both a product supplier and broad incumbent competitor.
• Steelcase: Leading global office furniture manufacturer with integrated workplace consulting services and direct dealer network. Competes with Castell as both a manufacturer source and as a broad workplace services incumbent.
• Haworth: Office furniture manufacturer with global dealer network and integrated workplace design services. Comparable in operating integrated design-furniture-showroom model and competing for enterprise workspace projects.

Direct peers

• Tangram Interiors: Workplace design consultancy and office furniture dealer operating across the western US, offering similar integrated design, furniture, and installation services with multiple showroom locations. Closely comparable to Castell in bundling workplace strategy with furniture dealership.
• Atmosphere Commercial Interiors: Midwest-based office furniture dealer and commercial interiors firm offering workplace design, furniture solutions, and project management to enterprise clients. Comparable in geographic focus, Teknion/Haworth dealer status, and full-service model.
• CORT Business Interiors: National commercial furniture rental and dealer business serving enterprise clients with furniture-as-a-service and full workplace transition services. Comparable model in providing furniture, installation, and move/relocation services for commercial clients.
• Office Elements: Regional office furniture dealership with workplace design and furniture services, comparable in scale and integrated service offering to Castell. Operates as an authorized dealer for major manufacturers serving enterprise clients.
• SPIN (Spin Global): Workplace strategy and office furniture dealer offering design, furniture, and change management services to enterprise clients. Closely comparable integrated workplace consultancy model though now owned by MillerKnoll.

Emerging players

• Flagship Facility Services: Facility services provider offering furniture installation, project management, and workplace support services with growing commercial interiors capabilities. Adjacent peer offering overlapping facility services to enterprise clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/castellspaces
• LinkedInlinkedin.com/company/castellspaces
• Instagraminstagram.com/castellspaces

Revenue estimate

Valuation estimate

Number of profiles

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 Office Furniture Solutions, Inc.