ISIS

Name

ISIS

Legal name

ISIS S.A

Website

http://www.isis.be

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

11–50 employees

Short description

ISIS deals with IT management and offers services in web and mobile applications, e-commerce, and 4D solutions.

Ownership category

akta.pro rank

Product category

Enterprise Resource Planning (ERP) Software

NAICS

Software Publishers (5132), Custom Computer Programming Services (541511), Computer Systems Design Services (541512), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Core ERP Suites (Financials, Procurement, Projects) (HDAEAEAA)

akta.pro secondary industries

ERP Extensions & Add-ons (CPQ, Billing, Revenue Management) (HDAEAEAO), ERP Implementation & Systems Integration Services (BPAEAGAA)

Keywords

• Enterprise resource planning
• Business management software
• Peppol electronic invoicing
• Custom software development
• 4D development platform

Headquarters

HQ city

Verviers

HQ country

Belgium

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. EQUISIS ERP Software Licensing: ISIS derives revenue from licensing its proprietary EQUISIS ERP software. The software is sold as a modular suite with separate modules (accounting, stock, POS, production, HRM, CRM, etc.). The company also sells annual update/maintenance subscriptions ('abonnement annuel'). Multi-user and multi-company (multi-dossier) license options exist.
2. Custom Software Development: ISIS develops fully custom management software for clients whose needs cannot be met by standard ERP modules. This includes custom web applications, mobile apps, and specialized vertical solutions (logistics WMS, cleaning management, laboratory LIMS, food traceability). Revenue is project-based.
3. Professional Services & Training: Through sister company Formac Consult (founded 1989), ISIS offers corporate training and consultance services. AMTC provides accounting and fiduciary services. These subsidiaries expand the group's service revenue.
4. 4D Software Distribution: ISIS distributes the 4D development platform in Belgium and Luxembourg (since 1994), generating licensing revenue from 4D sales.
5. IsiFact (Simplified Web Invoicing): In 2025, ISIS launched IsiFact, a simplified web invoicing platform targeting independents and micro-enterprises (TPE), offered as a low-cost SaaS solution connected to the Peppol network.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

ISIS develops, distributes, and customizes EQUISIS, a modular ERP software suite for Belgian SMEs covering accounting, stock management, commercial management, invoicing, point of sale, production, HRM, CRM, after-sales service, and reporting. The company also distributes the 4D development platform in Belgium and Luxembourg, offers fully custom software development, and operates a Peppol-certified e-invoicing cloud platform (with IsiFact, a simplified web invoicing tool for micro-enterprises launched in 2025).

Product overview

ISIS offers EQUISIS, a modular ERP (Enterprise Resource Planning) software system with a comprehensive suite of interconnected modules for business management. The core EQUISIS platform includes modules for Accounting & Finance, Analytical Accounting, Stock Management (with WebScan mobile scanning), Customer and Supplier Commercial Management, Invoicing (with Peppol electronic invoicing), Point of Sale (POS), Production/GPAO, HRM (Pro'Timer), CRM, After-Sales Service (SAV/DNV), and Reporting. The system is available for both Mac and PC. ISIS also provides IsiFact, a separate simplified web invoicing platform launched in 2025 for independent workers and micro-enterprises, connected to the Peppol network. Custom development services and 4D development tools distribution complement the product portfolio. The EQUISIS Webshop Connector enables integration with Shopify and Prestashop e-commerce platforms.

Differentiator

Problem solved

Functional benefit

Brands

• EQUISIS: Enterprise management software (ERP) with modules for accounting, commercial management, stock management, point of sale, production, HRM, and electronic invoicing. Marketed as 'EQUISIS est une marque déposée de ISIS S.A.'
• EQUISIS Executive
• IsiFact
• EQUISIS Pro'Timer
• EQUISIS ODA
• EQUISIS WebScan

Products and services

• EQUISIS Modular ERP (Enterprise Resource Planning) software suite covering accounting, stock management, commercial management (customers/suppliers), invoicing (with Peppol e-invoicing), point of sale, production (GPAO), HRM, CRM, after-sales service, and reporting. Available for Mac and PC, deployable as cloud/web or on-premise. Sold to Belgian SMEs.
• IsiFact Simplified web-based electronic invoicing platform for independent workers and micro-enterprises, connected to the Peppol network. Low-cost SaaS solution for B2B e-invoicing compliance (mandatory in Belgium from January 2026).
• PEPPOL Electronic Invoicing Service Electronic invoicing service via the Peppol international network, delivered through ISIS's own certified cloud access point. Enables secure B2B and B2G invoice exchange. Includes an API allowing partners to integrate their own invoicing software with ISIS's Peppol connector.
• Custom Software Development (Développement sur mesure) Bespoke management software development services for clients whose needs cannot be met by standard EQUISIS modules. ISIS develops entirely custom applications (web, mobile, vertical-specific) or extends existing projects. Includes custom WMS/logistics, cleaning management, laboratory LIMS, and food traceability solutions. Project-based pricing.
• 4D Development Tools Distribution Distribution, sales, and development expertise around the 4D development platform. ISIS is a 4D specialist and offers the platform to developers in Belgium and Luxembourg.
• AI Integration Services for Belgian SMEs Consultancy, development, and integration services to help Belgian SMEs adopt artificial intelligence in a concrete, profitable, and sovereign manner. Data stays in Europe (GDPR-compliant), delivered by local experts. Includes AI tools for payment reconciliation, OCR/AI invoice data extraction, and EQUISIS ODA workflows.
• EQUISIS Pro'Timer (HRM) Standalone web-based HRM and project tracking application for employee scheduling, contracts, benefits, time tracking, leave management, with real-time tablet integration and social secretariat (Group S, Partena) payroll file export.
• EQUISIS ODA (Invoice Approval) 100% web-based collaborative invoice approval tool for controlling purchase invoices through customizable approval workflows, with OCR and AI-powered PDF data extraction and direct EQUISIS accounting integration.
• EQUISIS WebScan (Mobile Scanning) Mobile barcode/QR code scanning application for inventory management, stock counts, goods receipt, delivery order preparation, and in-aisle customer shopping, connected in real-time via WiFi to the EQUISIS central database.
• EQUISIS Executive Premium redesigned version of the EQUISIS ERP with enhanced interface and features, later iterated through v2 (2007) and v3 (2011) with new modules including Point of Sale and Planning.
• Mobile Field Service App (SAV) Mobile application for after-sales service technicians: real-time planning, start/end time recording, parts and services selection, before/after photos, client signature capture, and real-time ERP synchronization for service billing.
• Food Traceability & Laboratory LIMS Software Custom-developed food traceability and Laboratory Information Management System (LIMS) software for agri-food producers and scientific laboratories, including lot-by-lot tracking, sample management, mobile field data collection, and compliance with HACCP, BRC, IFS, ISO 17025, GLP, and GMP.

Quantifiable outcome

• Reduce HRM management time by 4x and drastically reduce encoding errors
• +3 more outcomes

Named customers9 records

Segments7 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability3 records

Feature8 records

Partnerships

Seven partnerships are on record, tiered minor and core.

• Listedenaissance.beminorGTM or Marketing Partner · 1 January 2025ISIS partnered with Listedenaissance.be to provide a link between EQUISIS Point of Sale (POS) module and online birth/gift registries, enabling retailers using EQUISIS POS to manage in-store and online registry data in a unified system.
• AMTC (Advise Management Tax and Costing)coreImplementation/ SI/ Consulting Partner · 1 January 2002AMTC is a fiduciaire (accounting/fiduciary firm) founded in 2002, part of the ISIS Group. It shares offices with ISIS and serves clients across Wallonia, particularly in the Liège region. AMTC provides expert accounting services to EQUISIS clients and generates software implementation referrals. Email: [email protected].
• ISIS Flanders BVBAcoreChannel Partner/ Reseller/ Distributor · 1 January 1998ISIS Flanders (BE 0462.469.967), based in Overmere, is the Dutch-speaking arm of the ISIS Group, established in 1998 with Freddy Van de Velde as managing director. It serves Flemish clients, adapts EQUISIS for the Dutch-speaking market, and handles local sales and support in Belgium's Flanders region.
• 4DcoreTechnology or Integration · 1 January 1994ISIS has been the official distributor of the 4D development platform in Belgium and Luxembourg since 1994. 4D is the core technology underlying EQUISIS. This partnership gives ISIS both a revenue stream from 4D software sales and deep expertise in the 4D ecosystem, which underpins its entire product portfolio.
• Formac Consult S.A.coreStrategic or Co-development Partner · 1 January 1989Formac Consult is a sister company within the ISIS Group, founded in 1989. It specializes in corporate training and consultance, with notable references including prestigious Belgian and foreign universities. Led by Wilfried Niessen (Director and Dean of HEC Liège), Formac Consult generates cross-sell opportunities for ISIS software and shares offices with ISIS SA in Verviers.
• Peppol NetworkcoreTechnology or IntegrationISIS is a certified Peppol partner and has developed its own cloud access point platform for the Peppol e-invoicing network. With B2B Peppol e-invoicing mandatory in Belgium from January 2026, this partnership positions ISIS as a key enabler of regulatory compliance for Belgian businesses.
• Group S & Partena (Social Secretariats)coreTechnology or IntegrationEQUISIS Pro'Timer HRM module integrates with Belgian social secretariats Group S and Partena, enabling automated monthly payroll file exports in the format required for salary calculations, and automated import of salary OD (orde de détail) back into EQUISIS without additional data entry.

Scale indicators5 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Odoo: Open-source modular ERP/CRM suite targeting SMEs globally with accounting, inventory, POS, manufacturing, and e-commerce modules. Closely comparable to EQUISIS in modular scope and SME focus, and increasingly competing head-to-head in Belgium.
• Exact: Dutch-headquartered SME ERP/accounting vendor (Exact Globe, Exact Online) with strong Benelux presence. Directly comparable target customer (Belgian/Dutch SMEs), modular functionality, and accounting-driven core similar to EQUISIS.
• AFAS Software: Dutch privately-held ERP and payroll vendor focused on Dutch and Belgian SMEs. Comparable in being a regional, privately-held SME ERP champion with deep local accounting/payroll expertise versus global cloud suites.
• WinBooks: Belgian accounting and business management software for SMEs and accountants. Directly comparable as a Belgium-native packaged accounting/ERP offering targeting the same PME/TPE customer base as ISIS.
• EBP Informatique: French SMB-focused accounting, invoicing, and management software vendor. Closely comparable to ISIS in modular ERP/accounting scope, vertical customization, and proximity-led GTM in the French-speaking market adjacent to Wallonia.

Broad incumbents

• Sage: Global SME accounting and ERP incumbent (Sage 50, Sage 100, Sage Business Cloud). Broader portfolio competitor to EQUISIS in the Belgian SME market with much greater scale and resources.
• Microsoft Dynamics 365 Business Central: Microsoft's cloud ERP for SMEs with deep Office 365 integration. Increasingly the default cloud ERP choice for Belgian SMBs moving off legacy systems, making it a broad incumbent threat to EQUISIS's mid-market accounts.
• SAP Business One: SAP's SME-focused ERP. Competes with EQUISIS for the upper end of the Belgian SME segment where customers outgrow entry-level solutions but cannot afford full SAP S/4HANA.
• Cegid: French cloud ERP, accounting, and payroll software provider serving SMEs and mid-market. Relevant comparable for EQUISIS given the cross-border French-speaking Belgian market and competing cloud accounting/Peppol offerings.

Emerging players

• Acumatica: Cloud-native ERP for SMEs and mid-market with strong customization. An emerging cloud challenger whose pricing model and SaaS delivery represent the trajectory ISIS would need to match to remain competitive.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/ISIS_sa_

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries3 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 ISIS