OpenImmo
OpenImmo is a German non-profit association that develops and maintains a standardized data format for exchanging real estate listings between software vendors and online portals across European markets.
- Company typePrivate
- Founded2002
- HeadquartersGermany, Germany
- Headcount—
- GTM typeB2B
- OfferingSoftware
OpenImmo firmographics
Firmographics- Name
- OpenImmo
- Legal name
- OpenImmo e.V.
- Website
- https://openimmo.org
- Company type
- Private
- Founded year
- 2002
- Operating status
- Operating
- Short description
- OpenImmo is a German non-profit association that develops and maintains a standardized data format for exchanging real estate listings between software vendors and online portals across European markets.
- Ownership category
- akta.pro rank
Where OpenImmo is headquartered
LocationHeadquarters
- HQ city
- Germany
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
OpenImmo business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Infrastructure, Marketing or Sales
Revenue model
- Commercial License Fee: One-time processing fee of 100 Euro for granting a user ID for commercial use. No VAT applies.
- Premium Membership: Premium membership at 450 Euro per year, offering additional benefits including advertising effect and ability to shape standard development.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Free Tier - Basic Download |
| One time/ perpetual license | Multi-year contract | Commercial License |
| Subscription | Annual | Premium Membership |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels3 records
OpenImmo product offering
Product offeringCore offering
OpenImmo develops and maintains a standardized data format for describing and exchanging real estate objects between software products and online marketing portals. The standard comprises approximately 300 fields covering object categories, marketing methods, geographic information, prices, spaces, features, and conditions, with mandatory fields limited to about 15. Version 1.x uses an XML data format transported as ZIP-packed files via FTP, while version 2.x is delivered as a REST-API with JSON, described via OpenAPI 3.0.
Product overview
OpenImmo is a real estate data exchange standard (not a software product), comprising two versions of its specification: OpenImmo 1.x is the established XML-based standard with approximately 300 fields for describing property objects, transferred as ZIP-packed files via FTP; OpenImmo 2.x is the forthcoming REST-API based standard using JSON format and OpenAPI 3.0, designed as a non-compatible successor with streamlined data structures and English-language elements. The standard enables real estate software products and online portals to exchange property listing data.
Differentiator
Problem solved
Functional benefit
Products and services
- OpenImmo 1.x (XML Data Standard) An XML-based data standard describing real estate objects with approximately 300 fields covering categories (house, apartment, condo, commercial), marketing methods (buy, rent, lease), geographic information, pricing, spaces, features, conditions, and binary attachments such as images, PDFs, and video. Data is packed into ZIP files and transferred via FTP, with feedback from portals back to software products via XML email attachments. Intended for real estate software vendors, online portals, and realtors. Element names are in German; English field name translations are available to license holders.
- OpenImmo 2.x (REST-API Data Standard)
Companies that use OpenImmo
Customer profileSegments3 records
Ideal customer profiles3 records
OpenImmo technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
OpenImmo partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Supporting Members (35 organizations)core35 organizations as of January 2022 that support the OpenImmo standard development. Members can make suggestions for new versions and help shape the standard's direction.
- License Holders (450+ organizations)coreOver 450 organizations hold licenses to use the OpenImmo standard commercially. License holders can advertise using OpenImmo and access the English translation of field names.
- German Software Vendors and PortalscoreGerman software vendors create OpenImmo-compatible products, while portals import the data. The ecosystem includes companies listed in the member directory on openimmo.de.
Scale indicators6 records
Recent moves5 records
Expansion highlights5 records
OpenImmo competitors and assessment
Company assessmentBroad incumbents
- Zillow Group: Major US real estate platform with its own data infrastructure and standards. Comparable through its broad role in shaping real estate data exchange in the US market, though broader in scope than OpenImmo's standards focus.
- Rightmove: UK's largest property portal with proprietary data standards. Comparable as a major established real estate platform whose data standards shape the British real estate market through a similar ecosystem role.
- CoreLogic: US real estate data and analytics provider with extensive property data infrastructure. Comparable as a broader real estate data ecosystem player serving multiple market participants including MLS, lenders, and portals.
- Yardi: Major real estate software provider with proprietary data formats, APIs, and integration standards. Comparable as a real estate software ecosystem that defines data exchange for property management and listings.
- Immobilienscout24: Germany's largest real estate portal and a major consumer of OpenImmo data. Comparable as the dominant regional platform that defines practical use of OpenImmo within the DACH ecosystem and shapes standard requirements.
- MRI Software: Global real estate software provider with property data infrastructure serving commercial and residential markets. Comparable as a broader real estate software ecosystem player with its own data exchange standards.
Direct peers
- Real Estate Standards Organization (RESO): Non-profit organization that creates and maintains the RESO Web API data standards for real estate in the US and Canada. Most directly comparable to OpenImmo as a member-supported, non-profit data standards body serving real estate listings and MLS systems.
Regional players
- SeLoger: Major French real estate portal. Comparable as a regional platform in European markets where OpenImmo has expanded through partnerships with German software vendors.
- Idealista: Leading real estate portal in Spain, Italy, and Portugal. Comparable as a regional platform operating in European markets adjacent to OpenImmo's footprint, with its own data ingestion standards.
- Property Finder: Leading real estate portal in the Middle East and North Africa. Comparable as a regional platform in adjacent markets with its own data standards and listing infrastructure.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
OpenImmo financial estimates
Financial estimateRevenue estimate
Valuation estimate
OpenImmo leadership team
Management profileNumber of profiles
Profiles1 record
OpenImmo funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
OpenImmo M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about OpenImmo
What does OpenImmo do?
OpenImmo develops and maintains a standardized data format for describing and exchanging real estate objects between software products and online marketing portals. The standard comprises approximately 300 fields covering object categories, marketing methods, geographic information, prices, spaces, features, and conditions, with mandatory fields limited to about 15. Version 1.x uses an XML data format transported as ZIP-packed files via FTP, while version 2.x is delivered as a REST-API with JSON, described via OpenAPI 3.0.
Is OpenImmo a public or private company?
OpenImmo is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was OpenImmo founded?
OpenImmo was founded in 2002.
Where is OpenImmo based?
OpenImmo is headquartered in Germany, Germany, in the Europe region.
How does OpenImmo make money?
Two revenue lines are on record. Commercial License Fee is the primary driver. The others are premium Membership.
Who are OpenImmo's main competitors?
Broad incumbents on record are Zillow Group, Rightmove, CoreLogic, Yardi, Immobilienscout24 and MRI Software. Real Estate Standards Organization (RESO) is listed as a direct peer. Regional players are SeLoger, Idealista and Property Finder.
Does OpenImmo have an API?
Yes. OpenImmo 2.x REST-API with JSON data format. The data structures have been reviewed and the amount of elements have been reduced and updated. Data is transferred via REST-API and described using OpenAPI 3.0. Includes datatypes and formats, recommendations and instructions for data treatment, and country-specific sections for price, spaces, and features. The final version 2.0 was planned for mid-2022 release. Version 1.x uses XML/XSD schema format and is not an API/interface.