AddOn system s.r.o.
AddOn system s.r.o. is a Prostějov-based Czech IT firm that resells, implements, and supports the QI ERP and DUEL accounting systems (by Ježek software) for Czech enterprises, and offers the Alice AI document extraction tool, ID-KARTA attendance system, and outsourced accounting services.
- Company typePrivate
- Founded1992
- HeadquartersProstějov, Czechia
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What AddOn system s.r.o. does
AddOn system s.r.o. is a privately held Czech limited liability company (s.r.o.) headquartered at Olomoucká 2939/15 in Prostějov, founded in 1992 (per the company's own timeline; firmographic metadata lists 2015, likely a re-registration or data-source discrepancy). The firm operates as a regional value-added reseller, implementation partner, and support provider for Ježek software products, distributing and customizing the QI enterprise resource planning system and the DUEL economic/accounting system for small and large Czech enterprises. Its core product portfolio comprises QI (a modular ERP with CRM, DMS, APS, BI, e-shop, mobile app, HRM, attendance, and access control modules), DUEL (accounting, tax records, invoicing, orders, inventory, cash registers, fixed assets, payroll, updated annually), ID-KARTA (an attendance and access control solution integrated with QI and DUEL), and Alice (an AI-powered document extraction application launched in October 2025 and integrated with DUEL). AddOn system also provides outsourced accounting, payroll administration, and HR services, plus on-site group training courses in Prostějov.
AddOn system s.r.o. firmographics
Firmographics- Name
- AddOn system s.r.o.
- Legal name
- AddOn system s.r.o.
- Website
- https://addonsystem.cz
- Company type
- Private
- Founded year
- 1992
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- AddOn system s.r.o. is a Prostějov-based Czech IT firm that resells, implements, and supports the QI ERP and DUEL accounting systems (by Ježek software) for Czech enterprises, and offers the Alice AI document extraction tool, ID-KARTA attendance system, and outsourced accounting services.
- Ownership category
- akta.pro rank
AddOn system s.r.o. industry classification
Industry- Product category
- Enterprise Resource Planning (ERP) Software
- NAICS
- Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151), Software Publishers (513210)
- SIC
- Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373), Services-Prepackaged Software (7372), Services-Management Consulting Services (8742)
- akta.pro primary industry
- ERP Implementation & Systems Integration Services (BPAEAGAA)
- akta.pro secondary industries
- ERP Managed Services & AMS (Application Management) (BPAEAGAB), ERP Extensions & Add-ons (CPQ, Billing, Revenue Management) (HDAEAEAO), Enterprise Applications User/Admin Training (ERP/CRM/ITSM platforms) (BPAEANAK)
Keywords
Where AddOn system s.r.o. is headquartered
LocationHeadquarters
- HQ city
- Prostějov
- HQ country
- Czechia
- HQ region
- Europe
Offices1 record
Markets served
AddOn system s.r.o. business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales
Revenue model
- Software Licensing: Annual licensing/upgrades for QI and DUEL software systems. Regular version updates (e.g., DUEL 22 for 2026, DUEL 21 for 2025) with legislative compliance updates.
- Implementation Services: System implementation services for new customers, installation assistance, and ongoing support services.
- Training Services: Group training courses (hromadná školení) for DUEL modules covering operation, accounting, payroll, inventory, and assets management.
- Accounting and Payroll Services: Full accounting processing, payroll administration, and HR services including specialized consulting.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Standard software licensing model |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels3 records
AddOn system s.r.o. product offering
Product offeringCore offering
AddOn system s.r.o. distributes, implements, and supports business software for Czech enterprises — primarily the QI comprehensive ERP system and the DUEL economic/accounting system (both developed by Ježek software), the ID-KARTA attendance and access control solution, and an outsourced accounting and payroll service. It also offers Alice, an AI-powered document extraction add-on integrated with DUEL, and provides group training, implementation, and ongoing technical support from its Prostějov office.
Product overview
AddOn system s.r.o. is a Czech IT company (based in Prostějov) that resells, implements, and supports enterprise software — primarily the ERP system QI and the accounting/economic system DUEL (both developed by Ježek software). The core portfolio consists of four main products: (1) QI — a comprehensive ERP platform with CRM, DMS, APS, BI, e-shop, mobile app, HRM, attendance, and access control modules, customizable for small to large enterprises; (2) DUEL — an economic/accounting system covering accounting, invoicing, inventory, cash registers, and fixed assets, offered with annual version updates (DUEL 22 for 2026) and multiple optional modules (operation, accounting, payroll, inventory, assets); (3) ID-KARTA — an attendance and access control solution integrated with QI and DUEL; and (4) accounting and payroll outsourcing services. An AI-powered document extraction tool called Alice was introduced in October 2025 as a DUEL add-on, using computer vision and AI to automate data extraction from accounting documents.
Differentiator
Problem solved
Functional benefit
Brands
- QI: Comprehensive ERP system for managing all business processes including ERP, CRM, DMS, APS, BI, e-shop, mobile applications, HRM, attendance, and access control
- DUEL
- ID-KARTA
- Alice
Products and services
- QI (Informační systém QI) Comprehensive ERP system covering ERP, CRM, DMS, APS, BI modules, e-shop, mobile application, HRM, attendance, and access control, customizable for small to large enterprises. Sold and implemented by AddOn system as a Ježek software partner.
- DUEL (Ekonomický systém DUEL) Economic/accounting software covering accounting, tax records, invoicing, orders, inventory management, cash registers, and fixed assets, for small and large Czech businesses. Distributed by AddOn system with annual version updates.
- ID-KARTA (Docházkový systém) Employee attendance tracking and access control system with online attendance records, reporting dashboards, and integration with QI and DUEL systems.
- Účetnictví a mzdy (Accounting and Payroll Services) Full-service accounting, payroll administration, HR/personnel administration, and professional advisory services provided directly by AddOn system s.r.o. to Czech businesses.
- Alice – AI Document Extraction AI-powered application that extracts structured data from accounting documents and transfers it into DUEL, eliminating manual data entry. Targeted at accountants and businesses using DUEL.
Quantifiable outcome
- Document extraction accuracy up to 98%
- +1 more outcomes
Companies that use AddOn system s.r.o.
Customer profileNamed customers19 records
Segments3 records
Ideal customer profiles3 records
AddOn system s.r.o. technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
AI capability5 records
Feature1 record
AddOn system s.r.o. partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Ježek softwarecorePrimary supplier and software publisher. AddOn system distributes QI and DUEL software products developed by Ježek software. Customers access upgrades through Ježek's customer portal. Training courses are hosted at jezeksw.cz domain.
Scale indicators2 records
Recent moves5 records
Expansion highlights4 records
AddOn system s.r.o. competitors and assessment
Company assessmentBroad incumbents
- SAP ČR (SAP Business One / S/4HANA): Global ERP incumbent with a Czech partner and direct presence. Targets larger Czech enterprises with SAP Business One/S/4HANA, competing for the upper end of AddOn system's QI customer base.
- Seyfor (formerly Solitea / Seyfor a.s.): One of the largest Czech/Slovak ERP and accounting software groups (Byznys, Money S3/S4/S5, Vema and others). Competes broadly across the same Czech SMB/mid-market ERP and accounting segments.
- Unicorn a.s. (EVISION ERP): Large Czech enterprise software vendor with an ERP line (Unicorn EVISON) targeting mid-market and enterprise customers. Overlaps with AddOn system's larger QI ERP deployments.
- Ježek software s.r.o. Publisher of QI and DUEL and AddOn system's core supplier. Sells the same products through its own channels, making it a partial competitor to AddOn system alongside being its principal partner.
Direct peers
- Money S3/S4/S5 (Solen, s.r.o.): Established Czech accounting and economic software targeting SMBs. Competes head-to-head with DUEL on Czech bookkeeping, invoicing, and tax-compliance functionality.
- Vema, a.s. Czech vendor specializing in HR, payroll, and ERP solutions. Competes with AddOn system on payroll modules within DUEL and on broader Czech enterprise software.
- ABRA Software a.s. Czech ERP/accounting software vendor serving SMBs and mid-market with integrated ERP modules. Directly comparable to AddOn system's QI ERP offering for Czech customers.
- Pohoda (Stormware s.r.o.): Czech market-leading accounting/economic software with very large SMB installed base. Directly competes with AddOn system's DUEL and QI offerings for the same Czech small-business accounting and ERP customers.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
AddOn system s.r.o. social profiles
Digital presenceAddOn system s.r.o. financial estimates
Financial estimateRevenue estimate
Valuation estimate
AddOn system s.r.o. leadership team
Management profileNumber of profiles
Profiles2 records
AddOn system s.r.o. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
AddOn system s.r.o. 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 AddOn system s.r.o.
What does AddOn system s.r.o. do?
AddOn system s.r.o. distributes, implements, and supports business software for Czech enterprises — primarily the QI comprehensive ERP system and the DUEL economic/accounting system (both developed by Ježek software), the ID-KARTA attendance and access control solution, and an outsourced accounting and payroll service. It also offers Alice, an AI-powered document extraction add-on integrated with DUEL, and provides group training, implementation, and ongoing technical support from its Prostějov office.
Is AddOn system s.r.o. a public or private company?
AddOn system s.r.o. is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was AddOn system s.r.o. founded?
AddOn system s.r.o. was founded in 1992. It employs 1 to 10 people.
Where is AddOn system s.r.o. based?
AddOn system s.r.o. is headquartered in Prostějov, Czechia, in the Europe region.
How does AddOn system s.r.o. make money?
Four revenue lines are on record. Software Licensing is the primary driver. The others are implementation Services, training Services and accounting and Payroll Services.
Who are AddOn system s.r.o.'s main competitors?
Broad incumbents on record are SAP ČR (SAP Business One / S/4HANA), Seyfor (formerly Solitea / Seyfor a.s.), Unicorn a.s. (EVISION ERP) and Ježek software s.r.o.. Direct peers are Money S3/S4/S5 (Solen, s.r.o.), Vema, a.s., ABRA Software a.s. and Pohoda (Stormware s.r.o.).
Does AddOn system s.r.o. have an API?
No public API is recorded for AddOn system s.r.o..
What industry is AddOn system s.r.o. in?
AddOn system s.r.o.'s product category is Enterprise Resource Planning (ERP) Software. Its primary akta.pro industry code is BPAEAGAA, ERP Implementation & Systems Integration Services, with a secondary code of BPAEAGAB, ERP Managed Services & AMS (Application Management). Its NAICS code is 541511 and its SIC code is 7371.