What Ista does

Ista is a building energy management company that provides integrated heat cost allocation (Individualisation des Frais de Chauffage), water metering, and multi-utility metering (gas, electricity, thermal energy) services to residential collective housing (copropriétés) and tertiary/industrial building operators across more than 15 countries, with its French operations — ista CIS — headquartered in Versailles. The company operates an integrated hardware-software-services platform: the hardware layer comprises heat cost allocators, thermal energy meters, water meters, gas and electric meters, smoke detectors, smart radiator valves, and EV charging stations; the communication layer relies on proprietary radio systems and M-Bus wired buses for remote, walk-by or drive-by meter reading; and the software layer includes the MonCompte resident and property-manager portals, the MinuteView analytics platform for tertiary buildings, and the MaîtriseConso consumption-management tool. Differentiated offerings include HeatPilot (intelligent thermal regulation positioned for up to 30% heating bill savings) and AquaAlerte (water-leak detection for collective housing), with IFC heat cost allocation backed by ADEME validation showing 15–25% building-level heating consumption reduction.

Ista generates revenue through four interlocking streams: recurring metering-reading and billing-individualization services for residential buildings (subscription-style), equipment sales and installation, professional maintenance services (plumbing, smoke detectors), and managed energy services for tertiary and industrial clients including energy procurement, invoice validation, and heating optimization. Go-to-market is a hybrid of direct field sales through a network of local French agencies plus channel partnerships with property management companies (syndics de copropriété) that recommend and deploy solutions across their managed portfolios; pricing is quote-based with annual billing cadence and not publicly disclosed. The company is privately held within the ista SE group (HQ Essen, Germany) and has pursued a deliberate M&A strategy to deepen capabilities, notably acquiring Alfred Aubort SA in 2024 and Blockstrom AG (ZEV and digital energy data management) in March 2026, while extending product lines into EV charging and intelligent heating optimization.

Name

Ista

Legal name

ista CIS

Website

https://ista.fr

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

251–500 employees

Short description

Ista is a building energy management company delivering heat cost allocation, water and multi-utility metering, and intelligent heating optimization to residential copropriétés and tertiary/industrial building operators across 15+ countries, with 6 million+ devices installed in France alone.

Ownership category

akta.pro rank

Product category

Building Energy Management & Smart Metering

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334)

SIC

Heating Equipment, Except Electric & Warm Air Furnaces (3433), Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

TES Systems Integration, Controls & Optimization (TES EMS, Controls, Dispatch) (EUAFANAK)

akta.pro secondary industries

Utilities & Energy Management (Meters, Boilers, Chillers) (EDALALAH), HVAC & Industrial Ventilation (Chillers, AHUs, Exhaust, Filtration) (EUAEAFAE)

Keywords

• Heat cost allocation
• Building energy management
• Sub-metering services
• Smart metering solutions
• Water meter management

Headquarters

HQ city

Massy

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Metering and Billing Services (Sous-location de services de comptage): ista provides ongoing metering reading, data collection, and billing individualization services for residential collective housing (copropriétés). Charges for heating and water are individualized and billed per unit based on actual consumption, generating recurring service fees from property managers and co-owner associations.
2. Equipment Sales (Hardware): ista sells and installs metering hardware including heat cost allocators, thermal energy meters, water meters, gas meters, electric meters, temperature probes, smoke detectors, smart thermostat valves, and EV charging stations. Hardware may be sold outright or bundled with service contracts.
3. Professional Services — Installation and Maintenance: ista provides installation services for metering equipment, ongoing maintenance (robinettery maintenance, smoke detector servicing), and related professional services for collective housing and tertiary/industrial buildings.
4. Energy Management and Optimization Services: For tertiary and industrial clients, ista provides energy supply procurement (approvisionnement en énergie), invoice tracking and validation, heating optimization, and intelligent energy metering services, generating fees through service contracts and managed services engagements.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Ista provides integrated building energy management combining metering hardware (heat cost allocators, thermal energy, water, gas, and electric meters), radio and M-Bus communication systems, and cloud-based monitoring platforms. Core offerings include Individualisation des Frais de Chauffage (IFC) heat cost allocation, water sub-metering, HeatPilot intelligent heating regulation, AquaAlerte leak detection, and EV charging infrastructure for residential copropriétés and tertiary/industrial buildings.

Product overview

Ista is a building energy management company offering an integrated platform of hardware devices, software portals, and services for residential and commercial buildings. The core offering consists of heat cost allocation (Individualisation des Frais de Chauffage) and water metering solutions, supported by specialized devices including heat cost allocators, thermal energy meters, water meters, electricity meters, and gas meters. The software layer includes resident and property manager portals (MonCompte), MinuteView analytics platform, and MaîtriseConso management tool. Add-on services include smoke detector installation, plumbing maintenance, and leak detection (AquaAlerte). Communication technologies include radio and M-Bus systems for wireless meter reading. The HeatPilot intelligent heating regulation solution enables up to 30% heating savings. For tertiary and industrial clients, Ista provides electric vehicle charging stations, energy procurement, and bill validation services, all integrated through connected devices and digital platforms.

Differentiator

Problem solved

Functional benefit

Brands

• HeatPilot: Intelligent thermal regulation solution that enables up to 30% savings on heating bills.
• AquaAlerte
• MinuteView
• MaîtriseConso

Products and services

• Individualisation des Frais de Chauffage (IFC) — Heat Cost Allocation Service Regulatory-compliant heat cost allocation service that measures individual radiator heat output via heat cost allocators and bills each apartment based on actual consumption, enabling average 15% reduction in building heating consumption. Designed for residential collective housing (copropriétés) and their property managers (syndics de copropriété).
• Comptage d'eau — Water Metering Service Individual water metering solutions for residential collective housing that enable residents and co-owners to be billed for actual water consumption rather than collective allocations.
• HeatPilot — Intelligent Heating Regulation Intelligent thermal regulation solution that optimizes building heating energy consumption through automated, smart temperature control, enabling up to 30% savings on heating bills. Targeted at commercial and residential building operators.
• AquaAlerte — Leak Detection Service Water leak detection service for collective residential housing that alerts residents and managers to leaks to prevent damage and reduce waste.
• Service de détecteurs de fumée — Smoke Detector Service Smoke detector installation, servicing, and maintenance for collective residential buildings, including ongoing robinettery (faucet) maintenance.
• MinuteView — Energy Monitoring & Analytics Platform Cloud-based energy monitoring and analytics software platform for tertiary and industrial buildings, providing real-time energy consumption tracking, invoice validation, and optimization insights.
• Comptage énergétique intelligent — Smart Energy Metering Smart energy metering service for tertiary and industrial buildings providing real-time multi-utility (heat, water, gas, electricity) consumption monitoring, data collection, and energy optimization.
• Approvisionnement en énergie — Energy Procurement Service Energy supply procurement service for tertiary and industrial clients, helping commercial building operators source and manage their energy contracts.
• Solutions de recharge VE — EV Charging Solutions for Professionals Electric vehicle charging infrastructure and energy management integration services for professional and commercial buildings, including charging stations and integration with building energy management.

Quantifiable outcome

• 15–25% reduction in building heating consumption through Individualisation des Frais de Chauffage (IFC)
• +1 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Blockstrom AGcoreStrategic or Co-development Partner · 4 March 2026ista Swiss AG, the Swiss subsidiary of ista SE, acquired Blockstrom AG (based in Bern, Switzerland) on March 4, 2026. Blockstrom AG specializes in digital energy data management and ZEV (self-consumption community) solutions. The acquisition reinforces ista's offerings in energy data management and ZEV solutions within the Swiss building sector, enhancing integrated solutions for metering, billing, and energy management from a single source.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Engie Solutions: Major European energy services and facility management provider with broad energy management, HVAC, and building decarbonization offerings. Overlaps with ista's tertiary/industrial energy management and EV charging segments.
• Honeywell Building Technologies: Large incumbent offering building management systems, energy analytics, and HVAC optimization for commercial real estate. Competes with ista's tertiary segment analytics and optimization offerings.
• Schneider Electric: Global building energy management and building automation systems giant. Competes with ista at the commercial building analytics layer (MinuteView vs. EcoStruxure) and through integrated metering/BMS offerings.
• Landis+Gyr: Global smart metering infrastructure provider for utilities, with broader portfolio of electricity, gas, heat, and water metering solutions. Competes with ista at the utility-scale and multi-utility metering layer.

Emerging players

• EVBox: Specialist EV charging hardware and software provider focused on commercial and workplace charging. Comparable to ista's EV charging offering but as a dedicated specialist with deeper charging network capabilities.

Direct peers

• Kamstrup: Danish smart metering solutions provider for heat, water, and electricity. Comparable in offering intelligent metering hardware, communication infrastructure, and analytics for building and district energy applications.
• Diehl Metering: Manufacturer of smart heat, water, and electricity meters with integrated communication technologies. Overlaps with ista's metering hardware portfolio and serves overlapping building-services customers across Europe.
• Brunata: Danish heat cost allocation and metering services provider with strong presence in Northern Europe. Direct competitor in the same IFC-style submetering and billing service niche that ista operates in.
• Minol Messtechnik: German-based metering and billing services company for residential collective housing. Operates the same heat cost allocation, water metering, and consumption-based billing model as ista.
• Techem: Germany-based direct competitor offering submetering, heat cost allocation, and energy services for residential and commercial buildings across Europe. Highly comparable business model, customer base, and regulatory exposure to ista.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/ista-france
• Xx.com/istaFrance
• Facebookfacebook.com/istaFrance

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Ista