What Cobblestone does

Cobblestone A/S is a full-service property administration firm headquartered in Valby, Copenhagen, serving Danish housing cooperatives (andelsboligforeninger), owner associations (ejerforeninger), and residential and commercial investment property owners. Founded in 2003 and operating with approximately 200 employees, the company delivers financial administration, legal advisory, technical building consultancy, facility management, sustainability consulting, construction administration, board assistance, association formation, and real estate brokerage. The core platform is an online self-service portal that provides residents and board members digital access to property administration functions including waiting list management, damage reporting, document submission, and electronic invoicing; the company describes this as the market-leading online access solution in the Danish market. Cobblestone holds industry association memberships in Ejendom Danmark and PropTech Denmark, maintains active Facebook and LinkedIn presences, and runs a long-running content marketing engine publishing hundreds of educational articles on Danish property law, valuations, and administration since 2004. Subsidiaries Plan1 and ARI Byggerådgivning provide in-house and affiliated building technical consulting, and a partnership with Waitly extends the ecosystem into digital waiting list management.

The business model is primarily subscription-based recurring fees for full-service property administration, billed annually, with pricing tailored to association size and service scope rather than publicly disclosed. Ancillary revenue streams include facility management, facility service, sustainability consulting, construction administration, board assistance, technical building consultancy, association formation, and real estate brokerage, classified as professional services revenue. Go-to-market is sales-led: prospective clients discover the company through content marketing, industry association referrals, and direct website visits, then request tailored quotes via online forms. Existing clients interact with the digital self-service portal for day-to-day administration. Geographic reach was historically domestic Denmark, but in February 2026 Cobblestone merged with Swedish-Finnish property manager Retta to form INNA, a new Nordic property management company with offices in Denmark, Finland, and Sweden, and Cobblestone A/S rebranded to INNA Danmark A/S as part of this transaction. The company is privately held with no disclosed institutional ownership, funding rounds, or cap table information.

Name

Cobblestone

Legal name

Cobblestone A/S

Website

https://cobblestone.dk

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

251–500 employees

Short description

Cobblestone A/S (now INNA Danmark A/S) is a full-service Danish property management firm serving housing cooperatives, owner associations, and investment property owners with administration, legal advisory, technical consulting, and a market-leading online self-service platform, operating across the Nordic region post-Retta merger.

Ownership category

akta.pro rank

Product category

Property Management Services

NAICS

Residential Property Managers (531311), Nonresidential Property Managers (531312)

SIC

Real Estate Agents & Managers (For Others) (6531)

akta.pro primary industry

Property Management Advisory & Leasing Administration (FSAEAJAN)

akta.pro secondary industry

Residential Maintenance & Turnover Services (Make-Ready, Inspections) (BPAJAFAM)

Keywords

• Property administration services
• Housing cooperative management
• Owner association management
• Investment property management
• Facility management services

Headquarters

HQ city

Valby

HQ country

Denmark

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Property Administration Fees: Cobblestone charges fees for full-service property administration to housing cooperatives (andelsboligforeninger), owner associations (ejerforeninger), and investment property owners. Services include financial administration, legal advisory, technical building advice, and property operations.
2. Advisory and Ancillary Services: Additional revenue from facility management, facility service, sustainability consulting, construction administration, board assistance, technical building consultancy, association formation, and estate agency services.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Cobblestone A/S provides full-service property administration for Danish housing cooperatives (andelsboligforeninger), owner associations (ejerforeninger), and residential and commercial investment properties. Services span financial management, legal advisory, technical building consultancy, facility management, facility service, sustainability consulting, construction project administration, board assistance, association formation, and real estate brokerage, supported by a proprietary online self-service platform.

Product overview

Cobblestone A/S operates as a full-service property management company offering a comprehensive suite of services centered on property administration (ejendomsadministration) as the core product. Their integrated service model includes online access and self-service digital tools as built-in features of their administration platform, complemented by supplementary services including facility management, sustainability advisory, building technical consulting (Plan1), construction administration, board assistance, and property brokerage. The company recently merged with Retta to form INNA, expanding their Nordic footprint while maintaining their property administration focus for housing associations, owner associations, and investment properties.

Differentiator

Problem solved

Functional benefit

Products and services

• Ejendomsadministration (Property Administration) Full-service property administration for housing associations, owner associations, and investment properties, including financial management, tenant relations, and general property management.
• Online Adgang (Online Access) Online access solution providing residents and board members digital access to property administration services, documents, and self-service features, marketed as the market-leading online access solution for property administration.
• Selvbetjening (Self-Service) Self-service portal enabling residents to manage waiting lists, report damages, submit invoices, register contact information, and use electronic invoicing functions.
• Facility Management Professional facility management services for properties including maintenance planning and operational management.
• Facility Service Facility service offerings complementing facility management for comprehensive property care.
• Bæredygtighedsrådgivning (Sustainability Advisory) Sustainability consulting services to help properties improve environmental performance and meet green building standards.
• Byggesagsadministration (Construction Project Administration) Administration services for construction projects including renovation and modernization work on properties.
• Bestyrelsesassistance (Board Assistance) Support services for housing association boards to assist with governance, decision-making, and administrative tasks.
• Byggeteknisk Rådgivning (Building Technical Consulting) Technical building consultancy services including architectural, structural engineering, and construction expertise delivered through Cobblestone's Plan1 building technical department.
• Stiftelse af Foreninger (Association Formation) Services to help establish new housing associations, including legal setup and governance documentation.
• Ejendomsmægler (Property Broker) Real estate brokerage services for property transactions within Cobblestone's managed portfolio.

Quantifiable outcome

• One of Denmark's leading property management companies with approximately 200 employees

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature1 record

Partnerships

Six partnerships are on record, tiered flagship, core and minor.

• RettaflagshipStrategic or Co-development Partner · 2 February 2026Cobblestone merged with Swedish-Finnish property manager Retta to establish INNA, a new Nordic property management company operating across Denmark, Finland, and Sweden. As part of this partnership, Cobblestone A/S rebranded to INNA Danmark A/S. The combined entity aims to become a leading Nordic property manager with offices in all three countries.
• Plan1 (Byggeteknisk Afdeling)coreImplementation/ SI/ Consulting PartnerPlan1 is Cobblestone's in-house building technical department offering technical advisory services including architecture, building construction, and engineering. Plan1 assists Cobblestone clients with urban renewal applications in Copenhagen, providing expert support through the application process at no charge for the initial phase. Plan1 has extensive experience with building renovation projects and collaborates closely with Copenhagen Municipality.
• Ejendom DanmarkminorOthersIndustry trade association for property companies in Denmark. Cobblestone holds a membership which provides credibility, access to industry resources, and networking within the Danish property sector.
• PropTech DenmarkminorOthersDanish PropTech industry association. Cobblestone holds a membership demonstrating commitment to property technology and innovation in the Danish property sector.
• Willis (Insurance Broker)minorOthersWillis is an insurance broker that Cobblestone works with to provide insurance solutions to its managed properties, including a framework agreement with Codan Forsikring covering property insurance and coverage terms for Cobblestone's client base.
• ARI ByggerådgivningcoreStrategic or Co-development PartnerARI Byggerådgivning is a sister company of Cobblestone providing building consultancy services. The two companies work together to deliver comprehensive property services including construction administration and technical building advice to shared clients.

Scale indicators2 records

Recent moves3 records

Expansion highlights6 records

Direct peers

• DEAS Group: One of Denmark's largest property administrators, serving housing associations, owner associations and commercial properties. Directly comparable to Cobblestone on customer base, service scope and Danish market focus.
• Newsec: Full-service Nordic property manager operating in Denmark, Sweden, Norway and Finland with residential, commercial and association administration. Closely overlaps with Cobblestone post-INNA.
• Datea: Danish property administration software and services provider for housing and owner associations. Closely competes with Cobblestone's Online Adgang / Selvbetjening self-service offering.

Broad incumbents

• Heimstaden: Major Nordic residential property owner and manager with large Danish and Swedish portfolios. Overlaps with Cobblestone's investment-property administration segment but operates at far greater scale and vertically integrated ownership.
• Catella: Nordic real estate advisory and property management group active across Denmark, Sweden, Finland and Germany. Comparable to INNA's cross-Nordic advisory and administration footprint.
• Castellum: Large Swedish-listed commercial real estate company with in-house property management. Adjacent to Cobblestone's commercial investment-property administration practice.
• Akelius: European residential property owner and manager with significant Nordic exposure. Comparable as a residential admin customer to Cobblestone's Investeringsejendomme service line.
• Balder: Major Swedish-listed real estate company owning and administrating residential and commercial properties across the Nordics. Overlaps with Cobblestone on commercial/residential investment administration.

Regional players

• Willhem: Swedish residential property manager owning and administering rental housing across Sweden. Comparable in service model to Cobblestone's residential investment administration but focused on the Swedish market.

Emerging players

• Aareon: European PropTech vendor providing SaaS for housing associations and property managers; competes with Cobblestone's Online Adgang platform at the software layer of association administration.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/cobblestoneas
• LinkedInlinkedin.com/company/cobblestonedk

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 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 Cobblestone