Thuringian measuring and metering service

What Thuringian measuring and metering service does

TMZ Thüringer Mess- und Zählerwesen Service GmbH is a private, Thuringia-based B2B service provider for intelligent metering infrastructure in Germany's regulated energy sector, founded on a 1991 state-recognized meter testing facility and currently employing approximately 80 staff across Ilmenau (headquarters, ~27 employees) and Erfurt. The company operates four interlocking service lines: (1) procurement of electricity, gas, and water meters, Smart Meter Gateways (SMGw), control boxes, and accessories with manufacturer-neutral volume bundling; (2) BSI-compliant secure supply-chain logistics including a 150km own-fleet delivery radius and a proprietary digitized Lagerverwaltungssystem (LVS); (3) data management covering BSI-certified Smart Meter Gateway Administration (GWA) on Robotron technology, Meter Data Management (MDM/pEMT), fault management, and CLS management with ERP integrations to SAP ISU, Schleupen, SIV, Wilken, and Klafka&Hinz; and (4) WAN communication including LTE450 SIM management and broadband powerline integration. As of June 2026, TMZ manages over 100,000 SMGw in production and operates Prüfstelle ETH 01, the only state-recognized electricity meter calibration facility in Thuringia under §40 MessEG, certified by TÜV Thüringen to ISO 27001, ISO 9001, ISO 45001, and ISO 50001.

Name

Thuringian measuring and metering service

Legal name

TMZ Thüringer Mess- und Zählerwesen Service GmbH

Website

https://tmz-gmbh.de

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

51–100 employees

Short description

TMZ Thüringer Mess- und Zählerwesen Service GmbH is a Thuringia-based B2B service provider delivering metering equipment procurement, secure supply-chain logistics, BSI-certified Smart Meter Gateway Administration, meter data management, WAN communication, and state-recognized electricity meter calibration to German utilities, grid operators, and meter operators.

Ownership category

akta.pro rank

Headquarters

HQ city

Ilmenau

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Procurement and Sale of Metering Equipment: TMZ procures and sells electricity meters, gas meters, water meters, Smart Meter Gateways, control boxes, and accessories to metering operators. Revenue is generated through the sale of hardware, including pre-qualification, quality management, and manufacturer-neutral volume bundling. All devices undergo comprehensive quality acceptance testing before delivery.
2. Logistics in the Secure Supply Chain: Digitized warehouse management and delivery logistics services for metering devices, including own fleet delivery within 150km radius of Ilmenau headquarters. Covers the complete requirement catalog of a customer-specific MSB supply chain and associated IT security level.
3. Smart Meter Gateway Administration (GWA): TMZ operates as a GWA service provider, managing the configuration, monitoring, and operation of Smart Meter Gateways for third-party meter operators. Services include system and environment certification per ISO 24001, fault management, compatibility testing, and CLS management. Provided as SaaS via GISA Smart Energy Platform.
4. Meter Data Management (MDM): Collection, processing, and provision of relevant measurement and operational data. Includes meter value acquisition and processing with replacement value formation, meter value and data provision, and integration with leading ERP systems (SAP, Schleupen, SIV, Wilken, Klafka&Hinz).
5. Calibration and Testing Services: State-recognized testing facility ETH 01 performs calibration of electronic and electromechanical AC and three-phase electricity meters for active and reactive energy, additional devices, and measuring transformers. Also performs sampling tests and assessment tests.
6. CLS Management: Controllable Local System (CLS) management including control box administration, web service interfaces to ERP systems for mass-scale commissioning of control boxes, BDEW-API functionalities, and grid data processing.
7. WAN Communication Services: Procurement and operation of SIM cards via private APN from various providers including LTE450, provision of complete WAN communication for Smart Meter Gateways, customer APN connection, broadband powerline network connection, and maintenance and monitoring of IT infrastructure.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

TMZ is a B2B full-service provider for intelligent metering infrastructure in Germany, bundling procurement of meters, Smart Meter Gateways and control boxes; secure supply chain logistics with digitized warehousing; certified Smart Meter Gateway Administration (GWA) and Meter Data Management (MDM); CLS Management and WAN communication services; and state-recognized electricity meter calibration through its Prüfstelle ETH 01. Its customers are energy suppliers, grid and meter operators, municipalities, housing companies, and industrial firms, with delivery via own fleet within 150km of Ilmenau and SaaS-enabled digital services across Germany.

Product overview

TMZ Thüringer Mess- und Zählerwesen Service GmbH operates as a comprehensive service provider for intelligent metering systems in the energy sector. The company offers a unified portfolio of interconnected services structured around four core pillars: (1) Beschaffung Messtechnik - procurement of electricity meters, gas meters, water meters, Smart Meter Gateways, Steuerboxen (control boxes), accessories, and custom meter board manufacturing; (2) Logistik in der sicheren Lieferkette - digitized warehouse management and delivery logistics within 150km of Ilmenau; (3) Datenmanagement - encompassing Smart-Meter-Gateway-Administration (GWA), Messdatenmanagement (MDM), Störungsmanagement, and CLS-Management/Grid-Daten services; and (4) WAN-Kommunikation - wide area network communication including LTE450 connectivity. The company also operates Prüfstelle ETH 01, the only state-recognized testing station for electricity meters in Thüringen, providing calibration, sample testing, and verification services. A customer-facing EnergiePortal powered by TMZ provides consumption visualization for end consumers. All gateway administration and data management services are delivered via the GISA Smart Energy Platform or Robotron-based systems.

Differentiator

Problem solved

Functional benefit

Brands

• EnergiePortal powered by TMZ: Online portal for Smart Meter visualization for household customers of basic metering point operators.
• Prüfstelle ETH 01

Products and services

• Beschaffung Messtechnik (Metering Equipment Procurement) Manufacturer-neutral procurement service for quality-tested and pre-qualified metering devices including electricity meters, gas meters, water meters, Smart Meter Gateways, control boxes, and accessories, including meter board manufacturing and custom project procurement, with comprehensive quality acceptance testing.
• Logistik in der sicheren Lieferkette (Secure Supply Chain Logistics) Digitized warehouse management and delivery logistics for metering devices with BSI-compliant secure supply chain processes, including tamper-proof storage, monitored logistics, and customer delivery within a 150km radius of Ilmenau via company-owned fleet with external shipping partners for wider coverage.
• Datenmanagement (Data Management - GWA, MDM, Fault, CLS) End-to-end data management including certified Smart-Meter-Gateway-Administration (GWA), Meter Data Management (MDM/pEMT) with ERP system interfaces, fault management, CLS-Management with control box administration and BDEW-API, plus grid data processing. Visualizes data per §§61 and 62 MsbG.
• WAN-Kommunikation (WAN Communication) Wide area network communication services for Smart Meter Gateways including procurement and operation of SIM cards via private APN from various providers (including LTE450), customer APN connection, broadband powerline network connection, and maintenance/monitoring of IT infrastructure.
• Prüfstelle ETH 01 (State-Recognized Calibration and Testing) State-recognized testing station for electricity meters, the only one in Thuringia, providing calibration of electronic and electromechanical AC and three-phase electricity meters for active and reactive energy, additional devices, and measuring transformers, plus sampling tests and assessment tests to extend calibration validity.
• EnergiePortal powered by TMZ Online portal for smart meter visualization for household customers of basic responsible meter operators, providing consumption and movement data display in configurable time intervals and slices under corporate design, with TMZ as service provider and GreenPocket GmbH as technical platform provider.

Quantifiable outcome

• 100,000 Smart Meter Gateways under management as of June 2026
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration14 records

Feature3 records

Partnerships

Eight partnerships are on record, tiered core, major and minor.

• GISA GmbHcoreTechnology or Integration · 12 March 2026GISA and TMZ extended their Smart Metering cooperation in March 2026 for another five years. GISA provides Gateway Administration (GWA), Meter Data Management (MDM/pEMT), and CLS Management (CLS/aEMT) fully as Software as a Service (SaaS) via the GISA Smart Energy Platform. The partnership began in 2017. The extended contract includes architecture and application management services.
• Power Plus Communications AG (PPC)majorTechnology or Integration · 22 January 2026PPC and TMZ, together with Robotron, successfully tested SMGWplus controlling four wallboxes via EEBUS communication through the Robotron GWA system operated by TMZ. This demonstrated scalability of SMGWplus-based control. Test conducted under the BMWE-funded SISSY research project.
• OsthessenNetz GmbHcoreStrategic or Co-development Partner · 22 May 2025OsthessenNetz (a RhönEnergie subsidiary) entered a long-term partnership with TMZ for Gateway Administration and Meter Data Management, targeting 50,000–60,000 intelligent meter installations by 2030. OsthessenNetz also acquired a Kommanditanteil in TMZ KG from TEAG.
• Überlandwerk MittelbadenmajorStrategic or Co-development Partner · 21 January 2025Überlandwerk Mittelbaden continued its Smart Meter Rollout with TMZ as Gateway Administration. Automated onboarding via Klafka&Hinz ERP integration was completed in 6 months. TMZ also provides disturbance management services.
• badenovaNETZE GmbHcoreStrategic or Co-development Partner · 23 September 2024badenovaNETZE (a badenova subsidiary based in Freiburg) signed an 8-year service contract with TMZ for Gateway Administration and Meter Data Management. TMZ supported the migration of 1,000+ already-installed Smart Meter Gateways to the TMZ system. badenovaNETZE also acquired a 10% Kommanditanteil in TMZ KG from TEAG.
• Robotron Datenbank-Software GmbHmajorTechnology or IntegrationRobotron provides the GWA system used by TMZ for Smart Meter Gateway administration. TMZ uses Robotron's system for monitoring and controlling SMGw fleets. Also provides the MDM platform. Partnership showcased in SMGWplus wallbox control testing.
• EAM Netz GmbHminorStrategic or Co-development PartnerEAM Netz GmbH (Kassel) holds a 10% Kommanditanteil in TMZ KG and is one of the founding partner utilities in the joint venture structure.
• RhönEnergie Fulda GmbHminorStrategic or Co-development PartnerParent company of OsthessenNetz. The RhönEnergie group arranged the partnership and equity participation of OsthessenNetz in TMZ KG.

Scale indicators5 records

Recent moves3 records

Expansion highlights4 records

Broad incumbents

• SIV.AG: SIV.AG is a German utility IT vendor offering ERP, billing, and metering solutions to municipal utilities. TMZ integrates with SIV.AG for MDM delivery, and SIV.AG is a broad incumbent peer in metering-adjacent utility software.
• Schleupen AG: Schleupen is a major German utility ERP and billing software vendor with native metering and MDM modules. TMZ integrates with Schleupen for meter data delivery, and Schleupen is a broad incumbent competitor for end-to-end utility IT stacks.
• KISTERS AG: KISTERS provides energy data management, MDM, and metering solutions to European utilities and grid operators. It overlaps with TMZ's MDM/CLS offering but serves a broader, pan-European customer base.
• Wilken GmbH: Wilken provides ERP and billing software for German utilities, including metering point administration modules that overlap with TMZ's MDM offering. It is one of several broad incumbent ERP peers TMZ integrates with and competes against for utility wallet share.

Direct peers

• GISA GmbH: GISA delivers GWA, MDM/pEMT, and CLS/aEMT as SaaS on the GISA Smart Energy Platform — the same stack TMZ uses and has just extended for another five years (2026). It is a directly comparable GWA-as-a-service peer in the German utility market.
• Power Plus Communications AG (PPC): PPC is a leading German Smart Meter Gateway manufacturer and SMGWplus developer. It partnered with TMZ on the multi-wallbox control test under the SISSY project, and is a directly comparable peer in BSI-certified SMGw technology and CLS integration.
• EMH metering GmbH & Co. KG: EMH metering manufactures electricity meters and RLMS hardware integrated with TMZ's Prüfstelle ETH 01 and iRLMSys offering. As a meter hardware partner with active TMZ collaboration, it is a directly comparable peer in the German metering ecosystem.
• Robotron Datenbank-Software GmbH: Robotron provides the GWA system and MDM platform that TMZ operates for Smart Meter Gateway administration. It is the underlying technology peer for TMZ's core gateway and data management offering, and also a research collaborator (SISSY SMGWplus wallbox test).

Emerging players

• items GmbH: items is a German specialist in smart metering, MDM, and gateway administration for utilities, often operating as a smaller, focused competitor to TMZ's GWA/MDM offering for municipal and regional energy suppliers.
• Discovergy GmbH: Discovergy is a German smart metering and energy data services provider offering submetering and gateway services. It targets similar utility and end-customer segments as TMZ but from a more software-focused, emerging-player position.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/tmz-thuringer-mess-und zahlerwesen-service-gmbh

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Thuringian measuring and metering service