ThermoVault

Name

ThermoVault

Legal name

ThermoVault BV

Website

https://thermovault.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

ThermoVault is a Belgian cleantech firm that retrofits electric water heaters, storage heaters, and heat pumps with IoT smart controllers using self-learning algorithms to cut energy use. It serves property managers and homeowners, with about 9,000 installations across Belgium, France, and Italy.

Ownership category

akta.pro rank

Product category

Smart Energy Management Hardware

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Auto Controls For Regulating Residential & Comml Environments (3822)

akta.pro primary industry

Residential Demand Response (Smart Thermostats, HVAC, Water Heating, Home Batteries) (EUAFAGAA)

akta.pro secondary industries

Heat Pump & Smart HVAC Controller Integration (HSAOANAD), Smart Thermostat & HVAC Automation Integration (HSAHADAC)

Keywords

• Smart energy management
• Thermal storage optimization
• IoT heating controller
• Demand response services
• Energy flexibility platform

Headquarters

HQ city

Genk

HQ country

Belgium

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Smart Controller Hardware Sales: One-time hardware investment for the ThermoVault controller device sold to homeowners and property managers. No recurring fees for the device itself.
2. Energy Flexibility Services: Recurring revenue from grid balancing services and contracts with Transmission System Operators (TSOs). By controlling appliance electricity usage, ThermoVault helps balance the grid.
3. OEM Licensing: Technology built into Ariston next-generation appliances, providing revenue through licensing arrangement with Ariston Group.

Pricing tiers

Go-to-market motion4 records

Distribution channels3 records

Marketing channels1 record

Core offering

ThermoVault designs and sells a universal IoT-based smart controller that retrofits existing electric water heaters, storage heaters, and heat pumps with self-learning algorithms to optimize energy consumption and provide 15-25% energy savings. The technology transforms thermal appliances into intelligent, grid-responsive storage devices, enabling demand response and grid balancing services. The company also licenses its technology to Ariston Group for embedding into next-generation appliances.

Product overview

ThermoVault offers a single unified product: the ThermoVault Smart Controller, which is a hardware and software solution that optimizes existing electric water heaters, storage heaters, and heat pumps. The controller uses self-learning algorithms to analyze usage patterns and automatically adjust heating schedules for energy savings. Installation takes approximately 15 minutes, and the device works as a universal controller with most electrical storage water heaters. The system enables households to save 15-25% on energy while functioning as intelligent, grid-responsive storage devices. The company also integrates its technology directly into Ariston's next-generation appliances, expanding from retrofit solutions to native device integration.

Differentiator

Problem solved

Functional benefit

Products and services

• ThermoVault Smart Controller

Quantifiable outcome

• 15-25% energy savings for households without sacrificing comfort
• +4 more outcomes

Named customers6 records

Segments2 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature5 records

Partnerships

One partnership is on record.

• Ariston GroupflagshipOEM/ Whitelabel/ Licensing PartnerThermoVault technology is built directly into Ariston's next-generation appliances, unlocking global market access through OEM embedded distribution. Collaboration with Ariston team on commercial projects across European scale.

Scale indicators6 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• ecobee: ecobee builds smart thermostats with occupancy sensing, learning algorithms, and demand-response participation through utility programs in North America; its self-learning HVAC controller and utility demand-response integrations are directly comparable to ThermoVault's smart controller and TSO contract model.
• tado°: tado° is a European smart heating controls company selling thermostats and radiator controls that optimize home heating and integrate with demand-response programs; it targets the same European homeowners and utilities with similar self-learning optimization and energy-saving claims, making it the closest direct competitor to ThermoVault's smart controller proposition.
• Mixergy: Mixergy manufactures smart hot water tanks with built-in sensors and connectivity that allow scheduling and optimization of electric water heating; it overlaps with ThermoVault's water heater optimization and demand-response focus, addressing the same end-customer pain point of energy costs and grid flexibility for hot water.
• PassivSystems: PassivSystems provides demand-response aggregation and optimization services that turn residential heating and hot water equipment into grid-balancing assets; it is a direct analogue of ThermoVault's TSO-facing recurring business and shares the use case of retrofitting properties to deliver flexibility services.

Broad incumbents

• Honeywell Home: Honeywell Home offers a broad portfolio of connected thermostats, HVAC controls, and water heater controllers used in residential and commercial buildings; it is comparable to ThermoVault as a controls provider for residential/commercial environments but operates at far greater scale across many product categories.
• Schneider Electric (Wiser): Schneider Electric's Wiser platform provides home energy management including heating controls, EV charger coordination, and load management; it is comparable to ThermoVault as a residential energy flexibility solution but Schneider is a much broader incumbent serving commercial buildings, data centers, and industrial energy management.
• Nest (Google): Google's Nest smart thermostats use learning algorithms to optimize HVAC and have utility demand-response integrations; as a broad incumbent from a hyperscaler, it competes with ThermoVault's self-learning HVAC/water heating control layer but covers a much wider consumer smart home portfolio rather than specializing in thermal storage flexibility.

Regional players

• Tibber: Tibber is a Nordic/European digital energy retailer that integrates smart heating control (Tibber Pulse / smart thermostats) and time-of-use optimization with dynamic electricity tariffs; it is comparable to ThermoVault through its residential heating optimization and demand-side flexibility play but operates primarily as a retailer in Northern Europe.
• Octopus Energy (Cosy / Kraken Flex): Octopus Energy combines smart heating products (Cosy, Intelligent) with Kraken Flex, its grid-flexibility platform that aggregates residential assets including heat pumps and hot water tanks to deliver TSO/DSO services; it overlaps with ThermoVault's retrofit + demand-response model but is anchored in the UK rather than continental Europe.

Emerging players

• Sunamp: Sunamp develops compact thermal energy storage (heat batteries) that replace or augment water heaters and storage heaters; it overlaps with ThermoVault on the thermal-storage / flexibility value proposition but competes on the storage hardware itself rather than the control and orchestration software layer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 ThermoVault