What iS Software GMBH does

iS Software GmbH is a privately held German software vendor founded in 2003 and headquartered in Regensburg, with 51-100 employees across offices in Regensburg, Frankfurt, Heidelberg, and Hanover. The company develops, sells, and operates the WinEV® software suite — a modular ERP and billing platform purpose-built for the German energy and water utility sector, covering consumption billing (SLP and RLM), network usage management, EEG/KWK renewable settlement, metering operations under MsbG, energy data management, balancing group settlement, document management, GoBD-certified archiving, financial accounting, controlling, and a customer portal. The architecture is unified by a proprietary DWM (Data Windows Manager) interface layer and integrates with EDIFACT-based market communication (UTILMD, MSCONS, INVOIC, etc.), Qlik-powered BI, Phoenix Documents Cloud, and SMGWA platforms for smart metering.

The company monetizes through four interlocking revenue streams: on-premise and cloud software licensing for WinEV modules, certified cloud hosting delivered from a NorthC Deutschland data center in Nuremberg (60-80+ customers), tiered Business Process Outsourcing services (Bronze/Silver/Gold) covering supplier, network operator, and meter operator roles, and professional services for implementation, training, and support. It serves 300+ customers across multiple regulated segments — energy suppliers, grid operators, meter operators, water utilities, energy cooperatives (via the GENOrmt sub-brand), and smart districts — with two wholly-owned subsidiaries handling sales/service (iS Software Vertrieb und Service GmbH) and cloud/application services (iS Software Application Providing-Service GmbH). The go-to-market is enterprise direct sales with supplementary presence at the E-world energy trade fair and digital channels; pricing is quote-based and not publicly disclosed.

Name

iS Software GMBH

Legal name

iS Software GmbH

Website

https://is-software.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

51–100 employees

Short description

iS Software GmbH is a privately held German software vendor that develops and operates the WinEV® modular ERP and billing suite for 300+ energy and water utilities, grid operators, and meter operators across Germany, monetizing through licensing, certified cloud hosting, tiered BPO services, and professional services.

Ownership category

akta.pro rank

Product category

Utility Billing Software

NAICS

Software Publishers (513210), Custom Computer Programming Services (541511), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Processing & Data Preparation (7374)

akta.pro primary industry

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

akta.pro secondary industries

iBPMS (Intelligent BPM Suites) & Process Automation Suites (HDAEAHAG), Billing & Revenue Operations (Subscription/Usage Billing, Rating, Order-to-Cash Support) (BPAAAGAD)

Keywords

• Utility billing software
• Energy ERP systems
• Meter data management
• Business process outsourcing
• Cloud hosting services

Headquarters

HQ city

Regensburg

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Licensing: iS Software generates revenue primarily through licensing its WinEV® software suite to energy and water utilities. The software is available as on-premise installation with various modules for billing, network management, meter operations, and business intelligence. Licensing includes per-seat, per-meter-point, or per-company configurations with annual maintenance and support fees.
2. Cloud Services / Hosting: Revenue from providing certified data center solutions where over 60 customers receive WinEV® functions as a service from the cloud. The company's data center in Nuremberg offers high availability, security, and automatic updates. This represents a recurring SaaS-like revenue stream with subscription pricing based on usage.
3. Business Process Outsourcing (BPO): iS Software offers comprehensive BPO services covering various market roles (Lieferant, Netzbetreiber, MSB). Services include Bronze (process support), Silver (individual process takeover), and Gold (full-service) packages. This provides recurring service revenue based on contracted scope.
4. Professional Services: Additional revenue from consulting, implementation, training, and support services. The AGB mentions that travel times and costs are billed separately, and consulting, advice, and recommendations provided are billed at iS Software's applicable rates.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

iS Software GmbH develops, sells and operates the WinEV® software suite, a modular ERP, billing and metering platform for energy suppliers, grid operators and water utilities. Beyond the WinEV® software, the company delivers Business Process Outsourcing (BPO) services and Cloud Services from its Nuremberg data center, enabling utility customers to outsource back-office and IT operations under one contract. The combined offering covers consumption billing, market communication, meter data management, network usage settlement, financial accounting, document archiving, customer portal and analytics for the regulated German utility market.

Product overview

iS Software GMBH offers a comprehensive modular software portfolio called WinEV® for the energy and water utility sector in Germany. The platform follows a unified core architecture with numerous specialized modules: WinEV® TARIF and WinEV® SVK handle consumption billing for tariff and special contract customers; WinEV® NETZ manages network usage; WinEV® EEG and WinEV® KWK address renewable energy and CHP legislation; WinEV® gMSB, WinEV® iMS, and WinEV® WiM cover metering operations. Complementary modules include WinEV® WEB (customer portal), WinEV® GPM (business process manager), WinEV® BI (Qlik®-powered business intelligence), WinEV® EDM (energy data management), WinEV® MaBiS (balance settlement), WinEV® DokV (document management), WinEV® RevA (audit-proof archiving via Phoenix Documents Cloud), WinEV® FS/FA/DS (financial accounting, fixed assets, controlling), and WinEV® ARES (order processing/warehouse). The company also provides BPO services and certified cloud hosting (NorthC datacenter in Nuremberg). GENOrmt serves cooperative member management needs.

Differentiator

Problem solved

Functional benefit

Brands

• WinEV: Comprehensive software solution family for energy and water utilities covering billing, network management, metering, EEG/KWK, and business intelligence modules.

Products and services

• WinEV TARIF Core WinEV® module that performs tariff-based consumption billing (Strom, Gas, Wasser and Fernwärme) for energy suppliers and municipal utilities (Stadtwerke), calculating prices, generating invoices and producing billing data for downstream market communication.
• WinEV SVK Core WinEV® module for Sondervertragskunden (special contract customer) billing, supporting individually negotiated tariffs and large-customer agreements for energy suppliers.
• WinEV NETZ Core WinEV® module for Netznutzungsmanagement (network usage management), handling grid fee calculation, network billing and network operator settlement processes for distribution grid operators.
• WinEV EEG Core WinEV® module for managing Erneuerbare-Energien-Gesetz (EEG) processes, including feed-in tariff calculation, EEG settlement and direct marketer integration for utilities and grid operators.
• WinEV KWK Core WinEV® module for Kraft-Wärme-Kopplung (combined heat and power) processes, handling CHP bonus calculation, KWK settlement and related market communication.
• WinEV gMSB Core WinEV® module for grundzuständiger Messstellenbetreiber (basic meter operations), covering metering point administration, device management and meter operations workflows for utility operators.
• WinEV iMS Core WinEV® module for intelligentes Messsystem (intelligent metering system / smart meter gateway administration), managing smart meter rollout and gateway communication in line with German BSI requirements.
• WinEV WiM Core WinEV® module for Wechselprozesse (supplier switching processes), handling GPKE, GeLi Gas and WiM standardized market processes for incoming and outgoing supplier switches.
• WinEV WEB Core WinEV® module providing a web-based customer portal and energy customer self-service for end consumers, including invoice access, consumption views and energy usage analytics.
• WinEV GPM Core WinEV® module providing a configurable business process manager that automates and orchestrates end-to-end utility back-office workflows across the WinEV® suite.
• WinEV BI Core WinEV® module for Business Intelligence and analytics, based on Qlik® technology, delivering dashboards, KPIs and reporting for energy and water utility operations.
• WinEV DokV Core WinEV® module providing electronic document management with integrated incoming mail processing, replacing paper-based correspondence for utility back-office operations.
• WinEV EDM Core WinEV® module for Energiedatenmanagement (energy data management), performing load profile balancing, time-series processing and supplier/customer allocation for utilities.
• WinEV MaBiS

Quantifiable outcome

• Over 300 satisfied customers using iS Software solutions
• +2 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability3 records

Feature15 records

Partnerships

Four partnerships are on record, tiered core and minor.

• NorthC Deutschland GmbHcoreTechnology or IntegrationNorthC Deutschland GmbH hosts iS Software's certified data center in Nuremberg. The facility meets current market criteria with security and high availability as top priorities. Data transmission rates, climate control, and power are guaranteed at near 100%, enabling 24/7 operation of the data center with acceptable costs.
• iQuadratcoreTechnology or IntegrationiQuadrat provides the Phoenix Documents Cloud solution used by iS Software for audit-secure archiving (WinEV® RevA). The solution is legally reviewed by an IT attorney and certified per GoBD standards, providing comprehensive document and process management for digital archiving with scan functionality.
• Qlik®coreTechnology or IntegrationWinEV® BI is based on Qlik® technology, which is widely deployed globally. The platform uses in-memory technology for real-time data processing and provides intuitive dashboards accessible via standard browsers from the iS Software Cloud.
• enercastminorOthersenercast provides weather and load forecasting services integrated with WinEV® solutions. Customer obligations and usage terms for end users are documented in a downloadable PDF from iS Software.

Scale indicators3 records

Recent moves1 record

Expansion highlights6 records

Others

• Qlik Technologies: BI/analytics platform on which iS Software's WinEV® BI module is built. Functions as an enabling technology partner rather than a competitor, but is a reference point for buyers evaluating the company's analytics stack.

Broad incumbents

• Sagemcom: European vendor of smart metering, energy management systems and utility software (incorporating former SIV.AG and Schleusenbauer assets). Competes with WinEV® iMS and gMSB on gateway metering and meter data management.
• Landis+Gyr: Global smart metering and grid intelligence provider. Competes in the adjacent smart metering and meter data management layer that complements iS Software's iMS and EDM modules.
• SAP SE (SAP for Utilities / IS-U): Global ERP leader with a dedicated SAP for Utilities / IS-U solution. Serves larger German utilities and competes for enterprise billing and metering RFPs that may otherwise go to mid-market specialists like iS Software.

Direct peers

• SOPTIM AG: Germany-based energy IT specialist delivering billing, network and meter operations software to utility customers. Direct overlap with iS Software's billing and network charge management modules.
• Robotron Datenbank-Software GmbH: German software vendor with a long-standing utility/energy practice; competes head-on with iS Software for billing, market communication (GPKE/GeLi Gas) and document archiving at municipal utilities and energy suppliers.
• PSI Software AG: German-listed vendor of utility software (energy network management, metering, billing, market communication). Competes directly against WinEV® NETZ, iMS and GPM modules with overlapping Meter-to-Cash coverage.
• KISTERS AG: German IT vendor for energy, water and environmental data management. Overlaps with iS Software across energy data management (EDM), water billing, and forecasting integrations used in BI/analytics modules.

Emerging players

• Theben Smart Energy: German vendor in sub-metering and smart energy/heat/water metering data solutions. Adjacent overlap with iS Software's water/wastewater and district (Areale und Quartiere) billing modules.

Regional players

• Cogito AG: Germany/Austria-focused IT consulting and software firm serving energy suppliers and municipal utilities. Competes with iS Software in the DACH mid-market utility billing space.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/is-software-gmbh
• Instagraminstagram.com/is.software

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 iS Software GMBH