Name

Rubitherm Technologies

Legal name

Rubitherm Technologies GmbH

Website

https://rubitherm.eu

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Phase Change Materials / Thermal Energy Storage

NAICS

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

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Phase-Change Material (PCM) Thermal Storage (Encapsulated, Building-Integrated) (EUAFANAD)

akta.pro secondary industries

Temperature-Controlled & Insulated Shippers (Coolers, Gel Packs, PCM Systems) (IMALAFAI), Cold Chain & Temperature-Controlled Storage Equipment (IMAHAKAJ)

Keywords

• Phase change materials
• Thermal energy storage
• Latent heat storage
• PCM encapsulation
• Building thermal management

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. PCM Material Sales: Sale of organic (RT-line) and inorganic (SP-line) phase change materials. Materials are sold in various forms including pure PCM, macroencapsulated, microencapsulated, and bound formulations. One-time product sales model with customers purchasing based on temperature requirements and application needs.
2. Thermal Energy Storage Systems: Sale of integrated thermal energy storage products including PhaseTube, PhaseCube, PhaseDrum, and KraftBoxx systems. These are complete TES (thermal energy storage) solutions sold as finished products or systems for heating, cooling, and air conditioning applications.
3. Macroencapsulation Products: Sale of encapsulated PCM products including CSM plates, cooling packs, heat storage elements, and heat packs. These are semi-finished products and components with integrated PCM materials for various applications.
4. Custom Development & Consulting: Development and adaptation of PCM materials according to specific customer requirements profiles. The company develops specific product solutions together with customers and provides application consulting.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels5 records

Core offering

Rubitherm Technologies GmbH manufactures and supplies phase change materials (PCMs) — both organic (RT-line, -10°C to 90°C) and inorganic (SP-line salt hydrates, -21°C to 90°C) — and refines them into macroencapsulated (CSM modules, thermal packs, heat plates), microencapsulated, and bound (PX powder) forms. The company also designs and sells integrated thermal energy storage systems (PhaseTube water-guided, PhaseCube air-guided, PhaseDrum heat recovery, KraftBoxx hybrid) for HVAC, cold chain logistics, automotive battery thermal management, food transport, healthcare therapy, and industrial heat recovery applications.

Product overview

Rubitherm Technologies GmbH is a PCM (Phase Change Materials) technology company offering a comprehensive portfolio of thermal energy storage solutions. The core products include organic RT-line PCMs (temperature range -10°C to 90°C) and inorganic SP-line PCMs (salt hydrate-based, -52°C to 90°C). These base materials are refined into multiple product lines: macroencapsulated solutions (CSM aluminum modules, thermal packs/kühlakkus, heat storage elements); bound PCM (PX powder for dry handling); microencapsulation for integration into building materials and textiles; and integrated thermal storage systems (PhaseTube water-guided, PhaseCube air-guided, PhaseDrum heat recovery, and KraftBoxx hybrid storage). The portfolio serves buildings/HVAC, cold chain/logistics, automotive, healthcare/therapy, food, and industrial applications.

Differentiator

Problem solved

Functional benefit

Products and services

• PCM RT-Serie (RT-line) Organic phase change materials using solid-to-liquid phase change to store and release heat at constant temperatures. Available in temperature range from approximately -10°C to 90°C. Features high latent heat capacity, long lifetime, constant performance over thousands of cycles, non-toxic properties. Sold to industrial customers for thermal energy storage applications.
• PCM SP-Serie (SP-line) Inorganic PCMs based on salt water mixtures and additives, with temperature ranges from -52°C to 90°C. Higher thermal conductivity and density than RT materials, cyclically stable up to 10,000 cycles in laboratory testing. Sold to industrial customers requiring higher density thermal storage.
• PhaseCube
• Kühlakkus - Makroverkapselung (Macroencapsulation - Thermal Packs) PCM-filled plastic thermal packs for cold chain logistics, enabling passive temperature stabilization of insulated transport boxes between -50°C and 100°C. Sold to logistics and pharmaceutical transport companies.
• CSM - Makroverkapselung (Compact Storage Modules) Aluminum-encapsulated PCM modules (450 x 300mm) with 10-15mm thickness. Features perfect heat conductivity through aluminum housing, inner/outer anticorrosive layer, leak-proof design, flexible volume and storage capacity. Designed for easy integration into existing HVAC and thermal systems.
• Gebundenes PCM - PX (Bound PCM) Dry, free-flowing PCM powder with approximately 60% organic PCM content bound in inorganic carrier matrix (~200µm particle size). Eliminates liquid handling and volume expansion issues. Used in therapeutic pouches and applications requiring solid-form PCM.
• PhaseTube - Wasser-geführter PCM Speicher Water-guided PCM thermal energy storage system using tubular plastic heat exchangers enveloped by PCM. Temperature range -21°C to +58°C, capacities from 32 kWh to 4000 kWh in container formats. Sold to building services, HVAC, and industrial customers.
• KraftBoxx - Wasser-geführter PCM Speicher Hybrid water/PCM thermal storage system with 30-60 kWh capacity options, offering 2-3x storage capacity of equivalent water tanks. Co-developed with kraftBoxx in heatStixx/heatSel format. Sold to building and HVAC customers.
• PhaseDrum Air-guided decentralized heat recovery system using PCM for ventilation of interior spaces, extending fan switchover times up to 30 minutes with 80% heat availability and 170 kJ storage capacity. Sold to building ventilation and HVAC integrators.
• Warmhalteelemente - Makroverkapselung (Heat Storage Elements) PCM-filled aluminum heat storage plates (GR82) for food transport, providing long heat retention periods at constant temperature. Sizes of 520x200x18mm and 155x200x18mm. Sold to food service, catering, and food transport companies.
• Wärmekissen - Makroverkapselung (Heat Packs) Therapeutic PCM heat cushions using PX powder in textile pouches, providing constant heat release at desired temperature. Sold to medical suppliers, physiotherapists, and therapeutic product distributors.
• Mikroverkapselung (Microencapsulation) Microencapsulated PCM in aqueous dispersion with 10-20 µm particle size and thermal stability up to 180°C. Available as aqueous dispersion. Designed for mixing into building materials and textile fibers. Sold to building materials manufacturers and textile producers.

Quantifiable outcome

• PhaseTube storage provides 2-3x storage capacity compared to water tanks of equivalent volume
• +4 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Seven partnerships are on record, tiered core and flagship.

• ThermalconcoreChannel Partner/ Reseller/ DistributorContact person for the building sector in the Netherlands. Provides local sales and support for Rubitherm products in the Dutch market.
• Air TScoreChannel Partner/ Reseller/ DistributorDistribution partner for France. Provides local sales and distribution of Rubitherm products in the French market.
• FovencecoreChannel Partner/ Reseller/ DistributorDistribution partners for Singapore and Malaysia. Provides local sales and distribution in Southeast Asian markets.
• RighTemp / RightEmp ShopcoreChannel Partner/ Reseller/ DistributorB2C PCM products for the Middle East (MENA) region. Operates rightemp.shop for consumer-direct sales of PCM products in the Middle East.
• Rubitherm LLC (Egypt)flagshipChannel Partner/ Reseller/ DistributorWholly-owned subsidiary in Egypt. Provides direct sales and support operations in the Egyptian and broader African market.
• kraftBoxx / heatStixx / heatSelflagshipStrategic or Co-development PartnerStrategic cooperation enabling all SP-line and RT-line products (0°C to +60°C) to be integrated into heatStixx and heatSel thermal storage systems. These are hybrid water/PCM storage systems with large surface area and thin PCM layer thicknesses for efficient heat transfer.
• RAL Quality Association PCMcoreStrategic or Co-development PartnerIndustry association membership. Rubitherm actively participates in the RAL quality association for PCM, which provides quality assurance standards and sponsors the Phase Change Matters newsletter for industry updates.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• va-Q-tec: German-based developer of high-performance thermal insulation panels and PCM-based temperature-controlled packaging; closely comparable PCM product portfolio and cold-chain focus.
• Phase Change Energy Solutions: US-based PCM manufacturer offering BioPCM-based solutions for buildings, cold chain, and thermal energy storage; comparable product mix including encapsulated and building-integrated PCM.
• Climator Sweden AB: European PCM specialist providing organic and inorganic phase change materials for HVAC, cold chain, and building applications; direct competitor in temperature-range coverage.
• Pluss Advanced Technologies: India-based PCM and thermal energy storage company (MiraCradle, Celsure) serving pharmaceutical cold chain, buildings, and food logistics; directly comparable technology and end-markets.
• Outlast Technologies: PCM microencapsulation specialist focused on textiles, apparel, and bedding applications; comparable technology overlap in microencapsulated PCM for material integration.
• Sonoco ThermoSafe: Global temperature-controlled packaging solutions provider for pharma and life sciences; comparable offerings in passive cold chain shipping systems that overlap with Rubitherm's Kühlakkus and macroencapsulated packs.
• Pelican BioThermal: Provider of temperature-controlled packaging including reusable and single-use shippers with PCM-based thermal control for life sciences cold chain.
• Entropy Solutions / Microtek Laboratories: Manufacturer of microencapsulated PCMs (PureTemp) for building, textile, and thermal management applications; directly comparable encapsulated PCM technology.

Broad incumbents

• Croda International: Global specialty chemicals company with PCM and thermal management adjacencies across personal care, life sciences, and performance chemicals; broad incumbent with overlapping but non-specialized PCM activities.
• BASF: Global chemicals giant with materials and additives used in thermal management, construction, and specialty PCM-adjacent applications; broad incumbent potentially entering PCM space.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/rubitherm-technologies-gmbh

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

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 Rubitherm Technologies