KOSS
- Company typePrivate
- Founded1984
- HeadquartersDortmund, Germany
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
KOSS firmographics
Firmographics- Name
- KOSS
- Legal name
- GCI Gesellschaft für computergestützte Informationsverarbeitung mbH
- Website
- https://koss.software
- Company type
- Private
- Founded year
- 1984
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Ownership category
- akta.pro rank
KOSS industry classification
Industry- Product category
- Enterprise Resource Planning (ERP) Software
- NAICS
- Software Publishers (5132), Custom Computer Programming Services (541511)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)
- akta.pro primary industry
- Core ERP Suites (Financials, Procurement, Projects) (HDAEAEAA)
- akta.pro secondary industry
- Enterprise Content Management (ECM) Suites (HDAEAGAB)
Keywords
Where KOSS is headquartered
LocationHeadquarters
- HQ city
- Dortmund
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
KOSS business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Others
Revenue model
- Software Licensing & Subscriptions (KOSS Modules): KOSS offers its ERP platform and modules (KOSS.ERP, KOSS.FIBU, KOSS.PZE, KOSS.AKTEN, KOSS.B2B, KOSS.BI) as proprietary business software to small and mid-sized enterprises (KMU) in Germany. Modules can be purchased individually or as an integrated All-in-One solution. Revenue is generated through software licenses, likely with annual maintenance/support fees.
- Individual Software Development & Customization: GCI/KOSS develops individualized business software tailored to specific customer requirements. The consulting and development process follows a structured three-step approach: needs analysis, concept development, and custom programming. This represents a professional services revenue stream.
- IT Infrastructure & Hardware Sales: GCI provides comprehensive IT infrastructure services including server setup, antivirus software, and hardware procurement alongside their software. The company also resells Datafox time-tracking terminals bundled with KOSS.PZE. Hardware sales and IT administration services generate additional revenue.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels8 records
KOSS product offering
Product offeringCore offering
KOSS develops and sells a proprietary, modular All-in-One ERP software suite (KOSS.ERP) for small and medium-sized enterprises (KMU) in Germany. The suite covers sales, purchasing, warehousing, logistics, production planning, financial accounting, time tracking, document management, B2B e-commerce, and business intelligence through six integrated modules (KOSS.ERP, KOSS.FIBU, KOSS.PZE, KOSS.AKTEN, KOSS.B2B, KOSS.BI) plus the KOSS zAPP mobile companion app. Modules can be deployed individually or as an integrated solution, available on-premise or in the cloud, with customization, implementation consulting, and ongoing support delivered in-house from Dortmund.
Product overview
KOSS is a modular All-in-One business software suite built by GCI mbH (Dortmund, Germany) for small and medium-sized enterprises. The portfolio centers on KOSS.ERP as the core platform, supplemented by five integrated modules: KOSS.FIBU (financial accounting), KOSS.PZE (time and attendance), KOSS.AKTEN (document management, integrated with windream DMS), KOSS.B2B (B2B eCommerce and sales portal), and KOSS.BI (business intelligence with interactive dashboards). The modular architecture allows companies to deploy modules individually or as a fully integrated All-in-One solution. A mobile app (KOSS zAPP) extends time recording to smartphones. Individual customized platforms (e.g., KOSS.Cloer) are also built on the KOSS framework. The WebKOSS layer adds web-based access with SSO. GCI additionally provides comprehensive consulting, implementation, and ongoing support services under the KOSS.Service brand.
Differentiator
Problem solved
Functional benefit
Brands
- KOSS.ERP: Complete ERP solution for SMEs covering sales, logistics, production, and financial accounting.
- KOSS.FIBU
- KOSS.PZE
- KOSS.AKTEN
- KOSS.B2B
- KOSS.BI
Products and services
- KOSS.ERP The central modular ERP system for small and medium-sized enterprises covering sales, purchasing, warehousing, logistics, production planning and control, BDE (production data capture), and WebKOSS (web-based access/B2B/SSO). Supports multilingual B2B shops, dropshipping, sales portals, pack table processing, and carrier integrations (DHL, DPD, UPS, Dachser). Available on-premise or in the cloud on Linux and Windows environments.
- KOSS.FIBU Mandantenfähige (multi-tenant) Finanzbuchhaltung with automated bookings, foreign currency support, cost accounting (cost centers, cost types, cost objects), fixed asset management with linear/degressive depreciation, dunning management, and export to PDF/Excel. Can operate standalone or fully integrated with KOSS.ERP.
- KOSS.PZE
Quantifiable outcome
- 2,000+ successful projects completed over 40 years
- +2 more outcomes
Companies that use KOSS
Customer profileNamed customers9 records
Segments2 records
Ideal customer profiles2 records
KOSS technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration15 records
AI capability7 records
Feature11 records
KOSS partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core and minor.
- DatafoxcoreDatafox is a long-term hardware partner supplying data collection terminals and time-tracking devices (buchungsterminals) that integrate with KOSS.PZE. Datafox devices support authentication via RFID chips, barcode, magnetic stripe, and fingerprint. The partnership enables KOSS to offer complete time-tracking hardware/software solutions to customers.
- windreamcorewindream GmbH provides the Document Management System (DMS) integrated into KOSS.AKTEN for revision-secure document archiving, automated document capture, and archival of signed documents. The partnership enables the paperless office module within the KOSS ERP platform.
- Federal Ministry for Economic Affairs and Energy NRW (MID Förderprogramm)minorGCI leverages the NRW 'Mittelstand Innovativ & Digital' government funding program to support customers' digitalization projects. GCI's 35+ years of IT/software experience is used to support customers in accessing public funding for ERP and digital transformation projects. This is a market development enabler rather than a commercial partnership.
Scale indicators8 records
Recent moves6 records
Expansion highlights5 records
KOSS competitors and assessment
Company assessmentDirect peers
- Lexoffice: Lexoffice (Haufe-Lexware) is a leading German cloud-based accounting and business management solution for SMBs, competing directly against KOSS.FIBU and the broader SMB ERP/accounting buyer in Germany.
- Weclapp: Weclapp is a German cloud ERP platform explicitly targeting small and mid-sized businesses, offering CRM, ERP, and accounting in one suite - directly comparable to KOSS's All-in-One Mittelstand positioning but with a modern cloud-native architecture.
Emerging players
- Odoo: Odoo is an open-source modular ERP/CRM platform with broad SMB adoption across Europe, including Germany - competing with KOSS on modularity, app-store-style extension architecture, and Mittelstand/lower-mid-market deals.
- sevDesk: sevDesk is a German cloud accounting and ERP platform purpose-built for small businesses and self-employed professionals - an emerging SaaS challenger targeting the same German SMB buyer that KOSS addresses.
Regional players
- BMD Systemhaus: BMD is an Austrian/German-speaking ERP and financial accounting vendor for SMBs, primarily serving Austria and parts of DACH - comparable Mittelstand ERP/accounting focus to KOSS in the German-speaking market.
Broad incumbents
- proALPHA: proALPHA is a German ERP vendor focused on mid-market industrial and manufacturing companies - overlaps with KOSS's manufacturing vertical expertise and Mittelstand target segment but at the upper end of the SMB market.
- Microsoft Dynamics 365 Business Central: Microsoft's cloud ERP for SMBs, widely deployed in Germany through a large partner ecosystem - competes head-to-head against KOSS for Mittelstand ERP deals and brings Azure-native scalability.
- SAP Business One: SAP Business One is SAP's dedicated ERP for small and medium-sized businesses, with strong penetration in the German Mittelstand via a large partner channel - the dominant incumbent KOSS must compete against in the same buyer segment.
- Haufe-Lexware (Lexware): Lexware is a long-established German SMB accounting and business software suite from Haufe, providing ERP-adjacent financial and invoicing tools to German SMEs - competes for the same Mittelstand buyer as KOSS.FIBU and KOSS.ERP.
- Sage 50 / Sage 100: Sage's SMB accounting and ERP products serve European small and mid-sized businesses with on-premise and cloud deployment options - directly comparable feature set and target market to KOSS ERP/accounting modules.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
KOSS social profiles
Digital presenceKOSS financial estimates
Financial estimateRevenue estimate
Valuation estimate
KOSS leadership team
Management profileNumber of profiles
Profiles7 records
KOSS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
KOSS 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 KOSS
What does KOSS do?
KOSS develops and sells a proprietary, modular All-in-One ERP software suite (KOSS.ERP) for small and medium-sized enterprises (KMU) in Germany. The suite covers sales, purchasing, warehousing, logistics, production planning, financial accounting, time tracking, document management, B2B e-commerce, and business intelligence through six integrated modules (KOSS.ERP, KOSS.FIBU, KOSS.PZE, KOSS.AKTEN, KOSS.B2B, KOSS.BI) plus the KOSS zAPP mobile companion app. Modules can be deployed individually or as an integrated solution, available on-premise or in the cloud, with customization, implementation consulting, and ongoing support delivered in-house from Dortmund.
Is KOSS a public or private company?
KOSS is a private company. It is classified as family owned and is currently operating.
When was KOSS founded?
KOSS was founded in 1984. It employs 11 to 50 people.
Where is KOSS based?
KOSS is headquartered in Dortmund, Germany, in the Europe region.
How does KOSS make money?
Three revenue lines are on record. Software Licensing & Subscriptions (KOSS Modules) is the primary driver. The others are individual Software Development & Customization and IT Infrastructure & Hardware Sales.
Who are KOSS's main competitors?
Direct peers on record are Lexoffice and Weclapp. Emerging players are Odoo and sevDesk. BMD Systemhaus is listed as a regional player. Broad incumbents are proALPHA, Microsoft Dynamics 365 Business Central, SAP Business One, Haufe-Lexware (Lexware) and Sage 50 / Sage 100.
Does KOSS have an API?
No public API is recorded for KOSS.
What industry is KOSS in?
KOSS's product category is Enterprise Resource Planning (ERP) Software. Its primary akta.pro industry code is HDAEAEAA, Core ERP Suites (Financials, Procurement, Projects), with a secondary code of HDAEAGAB, Enterprise Content Management (ECM) Suites. Its NAICS code is 5132 and its SIC code is 7372.