SigmaHeat

What SigmaHeat does

SigmaHeat Energieservice Deutschland GmbH is a privately held German energy-service company founded in 2021 and headquartered in Hannover (Georgstraße 54, 30159 Hannover). The company targets large property portfolios in the Hannover metropolitan region and beyond, serving housing companies (Wohnungswirtschaft), municipal and public-sector entities (Kommunen & Länder), and enterprises with real estate portfolios (Unternehmen). Its flagship customer reference is meravis Wohnungsbau- und Immobilien GmbH, for which SigmaHeat optimized 350 heating centrals serving approximately 11,500 residential units.

SigmaHeat's core technology is a vertically integrated digital heating-optimization platform. It combines non-invasive temperature and pressure sensors (including the proprietary KMS-Temperaturmessgerät at €199.99, with sensors starting at €49.99) with a cloud-based management dashboard, a digital twin of the heating system, and a lifetime digital equipment logbook accessible via QR code. Service lines include Full-Service Hydraulischer Abgleich (hydraulic balancing, Procedure B), Heizungstausch (heating replacement, including heat pumps and district heating), and Rahmenvertrag Wartung & Notdienst (framework contracts for maintenance and 24/7 emergency response with guaranteed response times). Quantified outcomes cited include up to 25-26% heating energy savings, up to 60% investment cost reduction through data-based sizing, and ~€1.70/month savings per residential unit.

The company monetizes through a mix of recurring monitoring and maintenance framework contracts, hardware sales via its e-commerce shop, and project-based professional services for hydraulic balancing and heating replacement. Go-to-market is enterprise field sales with direct contact-form and phone outreach, supplemented by content marketing through its corporate website, LinkedIn (484 followers), and reference case studies. The wholly-owned subsidiary Der Meisterbetrieb handles the craftsmanship, hardware retail, and recruitment functions, enabling SigmaHeat to combine master trades with its digital platform. Pricing for services is quote-based and not publicly disclosed; only hardware pricing is transparent. The company has not disclosed external funding and operates with a headcount in the 11-50 range.

Name

SigmaHeat

Legal name

SigmaHeat Energieservice Deutschland GmbH

Website

https://sigmaheat.de

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

SigmaHeat is a German energy-service company that combines non-invasive IoT sensors, a digital twin platform, and HVAC master craftsmanship to optimize heating systems for housing companies, municipalities, and enterprises with large property portfolios.

Ownership category

akta.pro rank

Product category

HVAC Services & Heating Optimization

NAICS

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

SIC

Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

Heat Pump & Smart HVAC Controller Integration (HSAOANAD)

akta.pro secondary industry

Remote Monitoring & Energy Optimization for Refrigeration Systems (HSAOAJAO)

Keywords

• Heating optimization services
• Hydraulic balancing services
• Heating system monitoring
• Energy efficiency consulting
• Building HVAC technology

Headquarters

HQ city

Hannover

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Monitoring & Optimization Services: Ongoing monitoring and optimization services for heating systems. Includes sensor installation, remote monitoring, data analysis, and continuous optimization. Sold as annual contracts with framework agreements.
2. Hardware Sales (KMS Products): Sale of proprietary temperature measuring devices and sensors. Products include KMS-Temperaturmessgerät at 199.99 EUR and temperature sensors starting at 49.99 EUR.
3. Maintenance & Emergency Services: Regular maintenance services, preventive maintenance, and 24/7 emergency response. Sold through framework contracts with guaranteed response times.
4. Hydraulic Balancing Services: Full-service hydraulic balancing including building data capture, calculation (Procedure B), physical implementation, and digital documentation. Project-based service.
5. Heating System Replacement: Complete heating system replacement services including analysis, planning, funding consultation, installation, and digital documentation. Project-based professional services.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

SigmaHeat delivers end-to-end heating system optimization services for large property portfolios, combining proprietary non-invasive KMS temperature sensors with a cloud-based digital twin and 360° management software platform. Core service lines include Monitoring & Optimization (continuous remote monitoring and optimization), Full-Service Hydraulic Balancing (Procedure B calculation and physical implementation), Heating System Replacement (including heat pumps and district heating), and framework Maintenance & Emergency Service contracts with guaranteed response times. The offering also includes direct hardware sales of KMS measuring devices and accessories through an e-commerce shop.

Product overview

SigmaHeat offers a proprietary software and hardware platform for heating system optimization, centered on its own digital twin technology and the KMS-Temperaturmessgerät hardware device. The platform provides monitoring, analysis, and optimization of central heating plants across residential, commercial, and public properties. Core service offerings include Full-Service Hydraulische Abgleich (hydraulic balancing), Heizungstausch (heating system replacement), and Rahmenvertrag Wartung & Notdienst (maintenance and emergency service contracts). The digital solution encompasses a Web dashboard and mobile app for real-time visualization, anomaly detection, and automated optimization recommendations. The KMS-Temperaturmessgerät serves as the sensor hardware that feeds live data into the cloud platform, enabling the digital twin and equipment logbook. Services are offered on a full-service basis for housing companies, commercial real estate, municipal properties, and property management companies, primarily in the Hannover metropolitan region.

Differentiator

Problem solved

Functional benefit

Products and services

• KMS-Temperaturmessgerät (Temperature Measuring Device) Remote temperature measurement device that enables cloud-based monitoring of any water-based heating system (cross-manufacturer). Includes a digital system schema in the cloud, live measurement data, and a digital equipment logbook accessible via QR code without login. Sold to property owners and housing companies seeking non-invasive remote monitoring of heating infrastructure.
• Monitoring & Optimization Service Ongoing monitoring and optimization service for heating systems including non-invasive sensor installation, remote monitoring, data analysis, and continuous optimization recommendations. Targeted at housing companies, municipalities, and corporate real estate portfolios with large heating infrastructure.
• Full-Service Hydraulic Balancing Full-service hydraulic balancing service for large building properties covering on-site building data capture, hydraulic balancing calculation per Procedure B (room-wise), physical implementation of adjustments, and full digital documentation. Delivered to housing companies, commercial property managers, and municipalities.
• Heating System Replacement Service Complete heating system replacement service including analysis of existing heating systems, planning and coordination of replacement (with funding consultation for incentives), professional deinstallation, installation of new heating technology (heat pumps, district heating), commissioning, optimization, and digital documentation. Targeted at housing companies, commercial real estate, and municipalities transitioning heating systems.
• Maintenance & Emergency Service Framework Contract Framework contract service combining regular inspections, preventive maintenance, continuous remote monitoring with non-invasive sensors, and 24/7 emergency response with guaranteed response times. Includes digital documentation of all maintenance and service activities. Targeted at housing companies and commercial property operators seeking operational security and predictable maintenance costs.

Quantifiable outcome

• Up to 25% energy savings through heating system optimization
• +5 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core, key customer and minor.

• Der MeisterbetriebcoreStrategic or Co-development PartnerDer Meisterbetrieb is a related business entity and sister company that serves as SigmaHeat's Fachbereich (specialized department) for high-quality plumbing and HVAC craftsmanship and modern heating technology. The partnership combines traditional master craftsmanship with future-proof energy solutions. A dedicated shop and jobs portal are operated under this brand.
• meravis Wohnungsbau- und Immobilien GmbHkey customerOthersSuccessfully completed comprehensive energy efficiency project optimizing 350 heating centrals for approximately 11,500 residential units. Achieved up to 26% heating energy savings while maintaining comfort levels.
• Wohnungswirtschaft Niedersachsen BremenminorOthersIndustry association displayed as customer partner on website. Member of housing industry network in Lower Saxony and Bremen region.
• Gundlach Bau und ImmobilienminorOthersConstruction and real estate company listed as project partner. Collaboration on heating optimization projects.
• OstlandminorOthersHousing company listed as customer partner. Collaboration on property heating optimization.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Thermondo: German heating transition company focused on heat pump installation and replacement for residential and small commercial properties; overlaps with SigmaHeat on Heizungstausch and energy savings positioning but emphasizes hardware installation over ongoing monitoring SaaS.
• tado°: European smart thermostat and heating-control provider offering cloud-based optimization for residential and small commercial buildings; comparable in software-led heating optimization value proposition, though at smaller-building scale.
• digitalSTROM: Provider of smart home and building automation infrastructure in Germany with heating control capability; overlaps with SigmaHeat's building-side digital twin and HVAC integration positioning.

Broad incumbents

• ista: European leader in energy data, submetering, and heating cost allocation for residential real estate; offers connected heating monitoring and energy services for large housing portfolios — a direct analog to SigmaHeat's Wohnungswirtschaft value proposition.
• KALO (Minol-KALO Group): Provides metering, submetering, and energy management services to German housing companies; comparable in target customer (Wohnungswirtschaft) and regulatory-compliance angle, but operates at national scale with established operations.
• Viessmann Climate Solutions: Major German HVAC manufacturer increasingly bundling connected heating services; competes on the Heizungstausch and smart HVAC integration side that SigmaHeat sells services around.
• Getec Wärme & Energie: German energy service company offering contracting, heating optimization, and efficiency services for municipalities, housing, and industry; comparable target segments (Kommunen, Wohnungswirtschaft) and end-to-end heating optimization model.
• Bosch Thermotechnik (Smart Home): Large HVAC OEM with connected thermostat and heating-control products targeting German residential and light commercial markets; an indirect competitor to SigmaHeat's smart HVAC controller integration layer.
• Techem: Germany's largest energy service and submetering company for housing; comparable to SigmaHeat in serving German Wohnungswirtschaft with energy-cost optimization and compliance services, but at national scale and with a much broader metering portfolio.

Regional players

• enerix Energie & Gebäudetechnik: German renewable energy and heating contractor with regional franchise structure across Bundesländer; comparable in combining on-the-ground HVAC craft services with energy optimization for residential and commercial buildings.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sigmaheat
• Instagraminstagram.com/der_meisterbetrieb
• TikToktiktok.com/@der_meisterbetrieb

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 SigmaHeat