ista International

What ista International does

ista International (legal entity: ista SE) is a Germany-based, privately held provider of energy metering and building management services headquartered in Essen. The company designs, installs, and operates a fleet of more than 45 million wireless radio metering devices — including heat cost allocators, heat and cold meters, water meters, and smoke detectors — across 20 countries. These devices feed data into ista's HeatPerfect billing engine, the DataHub automated data exchange platform, and customer-facing portals such as EcoTrend, ista Webportal, and ista einfachSmart, enabling property owners, housing companies, and facility operators to allocate heating costs, monitor consumption, and meet regulatory compliance obligations.

The company's revenue model is built on recurring subscription-style metering, billing, and energy management contracts sold via direct enterprise field sales teams to residential property owners/managers and to commercial and industrial building operators. ista serves 460,000 customers covering 14 million homes and commercial properties and reported FY2024 group revenue of EUR 1,220 million, supported by 6,300 employees. Beyond core metering, ista has expanded into adjacent software and infrastructure products — including HeatPilot heating optimization, MinuteView energy monitoring, and ESG-Navi ESG management software for the commercial segment — and into EV charging infrastructure through the August 2024 acquisition of Chargemaker GmbH, targeting approximately 25,000 charging points by 2030 with up to EUR 30 million of planned investment. The company has also extended into digital energy data management via the March 2026 acquisition of Blockstrom AG by its Swiss subsidiary, and operates a proprietary public data tool (Heiz-O-Meter) built on anonymized consumption data from over 500,000 households.

Name

ista International

Legal name

ista SE

Website

https://ista.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

ista International (ista SE) provides energy metering, heat cost allocation, and building management services to 460,000 property owners, housing companies, and facility operators across 20 European and Middle Eastern countries via 45 million wireless devices.

Ownership category

akta.pro rank

Product category

Building Energy Metering and Sub-Metering Services

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Power Quality, Metering & Monitoring (HDACAJAG)

akta.pro secondary industries

Customer Premise Equipment Interfaces (Regulators, ERTs/Modules & Indoor/Outdoor Meter Sets) (EUAJACAE), Metering Data Acquisition & Customer Enrollment/Onboarding Services (EUAGAEAG)

Keywords

• Sub-metering services
• Heat cost allocation
• Building energy management
• Smart metering devices
• Consumption-based billing

Headquarters

HQ city

Essen

HQ country

Germany

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Metering Services and Billing: ista provides metering and billing services for heat, water, and other utilities in residential and commercial properties. Services include installation and maintenance of metering devices, data collection, and generation of consumption-based billing statements.
2. Smart Metering Solutions: Advanced smart metering solutions for commercial and industrial buildings, including monitoring, optimization, and ESG reporting capabilities.
3. EV Charging Infrastructure: Charging infrastructure services for electric vehicles at residential and commercial properties, including installation and management of charging stations.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels8 records

Core offering

ista manufactures and operates wireless sub-metering devices (heat cost allocators, heat/cold meters, water meters, smoke detectors) and delivers the associated metering, billing, and energy management services for residential and commercial buildings. Its portfolio bundles physical devices with software platforms (HeatPerfect billing, DataHub data exchange, EcoTrend consumption transparency, ESG-Navi, MinuteView, HeatPilot) plus EV charging infrastructure and adjacent services (drinking water analysis, energy certificates). Customers are primarily property owners, housing companies, property managers, and commercial/industrial operators served via recurring service contracts.

Product overview

ista International operates as a platform-plus-modules provider of metering services and building management solutions, with a portfolio organized around four core pillars: billing services (heat cost allocation via HeatPerfect, ancillary costs, and e-invoicing), digital platforms (Webportal, EcoTrend, DataHub, einfachSmart), physical devices (heat cost allocators, heat/cold meters, water meters, smoke detectors, radio and M-Bus systems), and附加服务 (smoke detector service, water analysis, energy certificates, EV charging infrastructure). The platform is anchored by the HeatPerfect billing engine and the wireless Funksystem that connects over 45 million devices globally. Add-on modules like EcoTrend (consumption information), HeatPilot (heating optimization), ESG-Navi (ESG management), and MinuteView serve specific segments, while recent expansion through the Chargemaker acquisition adds EV charging infrastructure. The Heiz-O-Meter leverages anonymized consumption data from the installed base to provide public market intelligence.

Differentiator

Problem solved

Functional benefit

Products and services

• ista HeatPerfect (Heat Cost Allocation & Billing)
• Heat Cost Allocators (Heizkostenverteiler)
• Heat and Cold Meters (Wärme- und Kältezähler)
• Water Meters (Wasserzähler)
• Smoke Detector Service (Rauchwarnmelder-Service)
• EV Charging Infrastructure (Ladeinfrastruktur)
• ESG-Navi
• MinuteView

Quantifiable outcome

• 3.7 million tonnes CO2 emissions avoided through ista solutions
• +1 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Blockstrom AGcoreStrategic or Co-development Partner · 4 March 2026Blockstrom AG, a pioneer in digital energy data management and ZEV (Zero Emission Vehicle) solutions, was acquired by ista swiss ag, the Swiss subsidiary of ista SE, as of March 4, 2026. The acquisition reinforces ista's commitment to integrated solutions for metering, billing, and energy management in the building sector.
• Chargemaker GmbHcoreStrategic or Co-development Partner · 1 August 2024ista completed full acquisition of Chargemaker GmbH, a provider of charging infrastructure for electric mobility, on August 1, 2024. The acquisition aims to expand ista's involvement in EV charging infrastructure with plans to invest up to 30 million euros and establish around 25,000 new charging points by 2030.
• DraxcoreStrategic or Co-development Partner · 1 January 2021ista has partnered with Drax, a UK energy provider, since 2021 to install EV charging infrastructure. Together, they have installed 86 charging stations at 33 commercial sites, serving customers including hotel chains and supermarket chains across the UK.
• ALAPAR FoundationminorStrategic or Co-development Partnerista Spain has been working with the ALAPAR Foundation since 2024, a non-profit organization that supports people with intellectual disabilities through training programmes, work integration, and social inclusion activities. Projects include making Christmas gifts, birth gifts, and welcome packs for new employees.
• BildungsCentminorStrategic or Co-development Partnerista partnered with the German educational association BildungsCent to develop the 'Climate Hour' educational concept for schools, teaching students about energy-efficient buildings, climate protection, and energy saving.
• Forest Forever FoundationminorStrategic or Co-development Partnerista Polska employees partnered with the Forest Forever foundation to plant 600 m2 of new forest area near Katowice as part of environmental sustainability initiatives.
• Plant et TræminorStrategic or Co-development Partnerista Denmark donated 1,200 trees to the NGO Plant et Træ in September 2024, with employees also planting 200 of those trees themselves.
• Haus Hall WorkshopsminorStrategic or Co-development Partnerista has been working with Haus Hall workshops since 2005, where people with and without disabilities dismantle old metering devices into component parts for recycling. A win-win situation for the environment and society.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Brunata-Metrona Group: Brunata-Metrona is a European competitor in heat cost allocation, submetering, and energy data management for residential and commercial real estate. Its product portfolio and target customer base (housing associations, property managers) closely mirror ista's core offering.
• Minol Messtechnik W. Lehmann GmbH & Co. KG: Minol is another leading German submetering and heat-cost-allocation specialist serving residential and commercial property owners. It competes head-to-head with ista on wireless heat cost allocators, water metering, and consumption-based billing across the DACH region and beyond.
• Kamstrup A/S: Kamstrup is a Danish manufacturer of smart metering solutions for heat, cooling, water, and electricity serving utilities and building operators across Europe. Its product focus on ultrasonic heat meters and smart metering infrastructure directly competes with ista's wireless submetering devices.
• ista competitor — Diehl Stiftung (Diehl Metering): Diehl Metering manufactures smart water, heat, and gas meters that directly compete with ista's device portfolio. While Diehl is more of a meter OEM than a service provider, its products are deployed in similar submetering applications and overlap with ista's heat/cold and water meter offerings.
• Techem GmbH: Techem is ista's closest direct competitor, providing heat cost allocation, water metering, and submetering services to residential and commercial properties primarily in Germany and across Europe. Both companies serve the same landlord and housing-company customer base with similar wireless metering devices, billing services, and consumption-transparency solutions.

Broad incumbents

• Itron Inc. Itron is a global leader in smart metering, networking, and utility data management for electricity, gas, water, and heat. While primarily utility-focused at scale, Itron's smart-metering and energy-data platforms overlap with ista's submetering and data-management capabilities in adjacent markets.
• Engie (Engie Solutions / Energy Services): Engie offers broad building energy services, including energy management, HVAC optimization, and decarbonization solutions across European commercial real estate. It overlaps with ista's commercial/industrial customer segment through MinuteView, HeatPilot, and ESG-Navi offerings.
• Landis+Gyr Group AG: Landis+Gyr is a global smart-metering and grid-management vendor serving utilities and energy providers. It competes in the broader metering and energy-data-management space where ista operates, though at a different scale and customer segment (utility-scale vs. building-level submetering).
• Schneider Electric SE: Schneider Electric provides building energy management systems, smart metering, and sustainability software across commercial real estate globally. Its EcoStruxure platform competes with ista's ESG-Navi and MinuteView solutions in the commercial building energy optimization space.

Emerging players

• ChargePoint, Inc. ChargePoint is a leading independent EV charging network operator and platform provider for commercial and residential locations. Through its Chargemaker subsidiary, ista is entering a market where ChargePoint is an established player with broader scale and brand recognition.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/ista
• Xx.com/ista_aktuell

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries3 records

Funding overview

Funding rounds2 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A3 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ista International