What Comemso does

Comemso electronics GmbH is a privately held German company founded in December 2009 in Ostfildern near Stuttgart by Dr.-Ing. Kiriakos Athanasas and Dipl.-Ing. (FH) Anita Athanasas. The company develops and sells modular e-mobility test systems centered on three product families: the Battery Cell Simulator (BCS) for validating battery management systems (up to 300 emulated cells, cascading to 1500 V stack voltage, 2 mA / 0.5 mV precision); the EV Charging Analyzer/Simulator (EVCA) for AC/DC charging conformance, interoperability, and robustness testing (up to 1500 V / 500 A, MCS-ready up to 1000 A); and the Easy Chester portable EVSE tester family, including the mobile ISO 17025-compliant Easy Chester Calimera for Eichrecht-grade field calibration. Customers include automotive OEMs, Tier-1 BMS manufacturers, EV/EVSE manufacturers, independent testing and certification laboratories, utilities, and national metrology institutes.

The company's proprietary technology stack combines in-house hardware with the comframe software framework (Release 1.0, 2025), which includes a REST API and Generic Source API for third-party hardware integration. A vertically integrated regulatory moat is anchored by the DAkkS-accredited DIN EN ISO/IEC 17025 calibration laboratory operated by wholly owned subsidiary comemso eMobility Services GmbH (covering DC charging up to 1000 V / 500 A) and PTB approval for Eichrecht-compliant EVSE calibration under VDE-AR-E 2418-3-100. The group also holds ISO 9001 and ISO 14001 certifications, is a member of CharIN e.V. and CHAdeMO e.V. standards bodies, and has won multiple innovation awards including the Innovationspreis Baden-Württemberg 2013 and L-Bank Landespreis 2020. An 85 kW-peak rooftop solar installation and an 18-of-20 vehicle electrification rate (2022) underscore the company's stated ESG posture.

Comemso operates a quote-based, demo-driven B2B sales motion anchored at the Ostfildern headquarters and the US sales/support office in Farmington Hills, MI, complemented by a tiered network of 13+ authorized sales partners across Asia, Europe, and the Americas. Revenue derives from one-time capital equipment sales (BCS, EVCA, Easy Chester variants, Mini Charger Tester), recurring multi-year maintenance contracts that bundle firmware updates and e-Learning access, project-based customized test rigs (e.g., 200-cell BMS simulators, MCS-ready 1000 A systems), and metrology/calibration services. Headcount is stated at 51–100 employees; the company has not disclosed external funding and remains founder-controlled under a 2021 holding company structure.

Name

Comemso

Legal name

comemso electronics GmbH

Website

https://comemso.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

51–100 employees

Short description

Comemso is a German B2B test equipment manufacturer that develops battery cell simulators, EV charging analyzers, and mobile ISO 17025 calibration systems for OEMs, Tier-1 BMS manufacturers, EV/EVSE producers, and certification laboratories worldwide.

Ownership category

akta.pro rank

Product category

E-mobility test and measurement equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Services-Testing Laboratories (8734)

akta.pro primary industry

Battery Management Systems (BMS) & Battery Electronics (IMAGAHAC)

akta.pro secondary industries

Formation, Testing & Quality/Metrology Equipment for Batteries (EUAFABAK), High-Voltage (HV) Safety, Isolation Testing & Compliance Services (TLAKAMAH), Testing, Certification & Compliance for Smart Charging/V2G (Grid Codes, Safety) (EUAFAMAK)

Keywords

• Battery cell simulation
• EV charging testing
• BMS validation systems
• EVSE calibration services
• E-mobility test equipment

Headquarters

HQ city

Ostfildern

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales – Test Systems: One-time sale of capital equipment including Battery Cell Simulators (BCS), EV Charging Analyzer/Simulator (EVCA / EVCA Flex / EVCA Multi Mobile), Easy Chester / Easy Chester Calimera / Easy Chester Light, Mini Charger Tester Gen 3.5, SmartCal, and EMCLink. Customers choose a system, download a specification PDF, and request a tailored quote with included online demo.
2. Calibration & Laboratory Services: Revenue from comemso eMobility Services GmbH's DAkkS-accredited DIN EN ISO/IEC 17025 calibration laboratory, offering calibration services for DC charging processes up to 1000 V and 500 A, including high-power charging and Eichrecht-related metrology.
3. Maintenance Contracts & Software Updates: Recurring revenue via optional maintenance contracts covering firmware/software updates (including free feature updates such as Voltage Oscillation or ISO 15118-20 EV-Sim/EVSE-Sim) and access to the comemso e-Learning portal. Delivered as multi-year service agreements tied to installed systems.
4. E-Learning & Training Services: Training and onboarding revenue via the comemso e-Learning portal (VIMP-based video platform) covering product functionality, firmware updates and troubleshooting. Included in maintenance packages, supporting both new-employee onboarding and ongoing customer education.
5. Customized / Engineered Test Systems: Project-based revenue from customized test rigs (e.g., 200-cell BMS simulators, hybrid EVCA Multi Mobile + high-power battery emulator setups, customized suitcase-sized EVCA, MCS-ready 1000 A EVSE test systems) engineered for specific OEM, lab or utility customer requirements.

Pricing tiers

Go-to-market motion4 records

Distribution channels5 records

Marketing channels8 records

Core offering

Comemso develops and sells modular, scalable test and measurement systems for e-mobility, including Battery Cell Simulators (BCS) for developing and validating battery management systems up to 300 emulated cells, EV Charging Analyzer/Simulator (EVCA) systems for analyzing AC and DC charging interfaces against global standards (IEC 61851, ISO 15118, NACS, CHAdeMO, GB/T, MCS), and the Easy Chester family of portable EVSE testers including the world's first mobile ISO 17025 calibration solution (Easy Chester Calimera). The hardware is unified by the proprietary comframe software framework and complemented by a DAkkS-accredited calibration laboratory and e-Learning portal.

Product overview

Comemso (comemso electronics GmbH) offers a modular, scalable portfolio of e-mobility test systems centered on three flagship product families: the Battery Cell Simulator (BCS / BMS Tester) for developing and validating battery management systems (with up to 300 emulated cells, cascading up to 1500 V, and optional Advanced Module + Voltage Oscillation); the EV Charging Analyzer/Simulator (EVCA) for analyzing AC and DC charging interfaces (EVs and EVSE), delivered in variants such as EVCA Flex (up to 350 kW / MCS-ready up to 1000 A), EVCA Multi Mobile, and EVCA AC; and the Easy Chester portable EVSE tester family (including Easy Chester Light, Easy Chester EOL, Easy Chester with Long Duration Unit, and the mobile ISO 17025-compliant Easy Chester Calimera). These hardware systems are unified by the comframe software framework (Release 1.0) — featuring a REST API and Generic Source API — and complemented by the BCS Calibrator (SmartCal), EMCLink for EMC test data acquisition, the Mini Charger Tester Gen 3.5, and the comemso E-Learning Portal for customer training. Together, these products cover BMS development, AC/DC charging conformance, interoperability, robustness, end-of-line, and field calibration testing across R&D, production, certification, and on-site service workflows.

Differentiator

Problem solved

Functional benefit

Brands

• BCS (Battery Cell Simulator): Product family for simulating up to 300 battery cells to develop and validate Battery Management Systems (BMS), including temperature sensor emulation and fault simulation.
• EVCA (EV Charging Analyzer/Simulator)
• Easy Chester
• Easy Chester Calimera
• comframe
• EMCLink
• SmartCal

Products and services

• Battery Cell Simulator (BCS) / BMS Tester Modular battery cell simulator for developing and validating battery management systems (BMS) in high-voltage EV battery packs. Simulates up to 300 cells with 2 mA / 0.5 mV precision, emulates temperature sensors and fault conditions (cable break, cell short circuit, polarity reversal), and supports cascading up to 1500 V stack voltage with CAN/EtherCAT monitoring.
• EV Charging Analyzer/Simulator (EVCA) Analyzer/simulator for AC and DC charging interfaces (EVs and EVSE) supporting interoperability, standard conformity and robustness testing up to 1500 V and 500 A (MCS-ready up to 1000 A). Covers global standards including IEC 61851, DIN 70121, ISO 15118, NACS, CHAdeMO, GB/T and MCS, delivered in variants such as EVCA Flex (up to 350 kW), EVCA Multi Mobile and EVCA AC for development, lab, certification and field use.
• Easy Chester (Simple EVSE Tester)
• Easy Chester Calimera (Mobile ISO 17025 Calibration)
• Easy Chester EOL End-of-line test system for EV charging stations that integrates power meter measurements of the EVSE into test reports for Eichrecht compliance, using ISO 17025-calibrated reference power meters and designed for production-line automation.
• Mini Charger Tester Generation 3.5 Handy-case format charger tester for AC and DC charging station commissioning and maintenance, with fault current injection per phase, ISO 15118 AC testing and two-unit master/slave parallel charging capability.
• BCS Advanced Module with Voltage Oscillation Advanced variant of the BCS Compact module delivering up to 7.5 A per cell at 5 V (or 6 A at 8 V) continuously, with cascading up to 1500 V stack voltage, paired with the Voltage Oscillation software feature for EMI/interference emulation during AC charging.
• SmartCal (BCS Calibrator) Fully automated calibration and adjustment tool for the Battery Cell Simulator, providing traceable calibration, measurement accuracy assurance and ease of use for both laboratory and on-site BMS testing workflows.
• EMCLink Smart real-time data acquisition solution that bridges EV, EVSE or EVCA systems during active EMC (electromagnetic compatibility) testing via optical signal and high-level communication transfer for seamless integration into EMC test setups.
• comframe Software Framework (Release 1.0) Comemso's central software framework for controlling and automating EV and EVSE test systems, providing real-time voltage/current monitoring, customizable test configurations, automated event logging and diagnostics, ISO 9001 / ISO 17025-compliant reporting, a REST API and a Generic Source API for integrating third-party power electronics.
• comemso E-Learning Portal Online video training portal for comemso customers, free with a maintenance contract and NDA, offering device-independent tutorials covering product functionality, firmware updates, troubleshooting and standards context to support onboarding and ongoing usage.
• DAkkS-accredited Calibration Laboratory Services DAkkS-accredited DIN EN ISO/IEC 17025 calibration services for DC charging processes up to 1000 V and 500 A, including high-power charging and Eichrecht-compliant metrology, delivered by comemso eMobility Services GmbH.

Quantifiable outcome

• Up to 300 battery cells simulated with 2 mA / 0.5 mV precision on the BCS
• +5 more outcomes

Named customers1 record

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature11 records

Partnerships

17 partnerships are on record, tiered core — silver-tier partner in japan, core — silver-tier partner in france, core — standard partner in thailand, standard — south korea, standard — poland, standard — singapore, standard — italy, standard — taiwan and china, standard — vietnam, standard — malaysia, singapore and thailand, standard — costa rica, flagship — bcs partner worldwide ex-japan, standard — india, strategic — co-hosted iec 61851-23 webinar, core — standards ecosystem member and minor — regional cluster membership.

• TOYO Corporationcore — silver-tier partner in japanChannel Partner/ Reseller/ DistributorAuthorized comemso Silver sales partner covering Japan for the EVCA (EV Charging Analyzer/Simulator) and BCS (Battery Cell Simulator) product lines. One of only two Silver-tier partners named globally.
• Equipements Scientifiques SAcore — silver-tier partner in franceChannel Partner/ Reseller/ DistributorAuthorized comemso Silver sales partner for EVCA in France. One of only two Silver-tier partners named globally.
• Intellution Co., Ltd.core — standard partner in thailandChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA and BCS in Thailand. Comemso has delivered a 350 kW EV charging test system (two EV Charging Analyzers for parallel charging tests up to 320 kW each) to an Intellution-region certification and testing laboratory customer in 2025; the lab has been a comemso customer since 2018.
• NeoScience Co., Ltdstandard — south koreaChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA and BCS in South Korea.
• EMC-FORTO Sp. z o.o.standard — polandChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA in Poland.
• TME Systems Pte Ltdstandard — singaporeChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA in Singapore.
• CalPower S.r.l.standard — italyChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA in Italy.
• aiox innovation companystandard — taiwan and chinaChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA, Easy Chester, Easy Chester Calimera and BCS in Taiwan and China — the broadest product portfolio among comemso's standard-tier partners.
• TM Technology .,JSCstandard — vietnamChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA, Easy Chester, Easy Chester Calimera and BCS in Vietnam.
• STTAi Pte. Ltd.standard — malaysia, singapore and thailandChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for EVCA across Malaysia, Singapore, Thailand, Indonesia, Vietnam and the Philippines.
• CFSstandard — costa ricaChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for Easy Chester in Costa Rica.
• OPAL-RT Technologiesflagship — bcs partner worldwide ex-japanChannel Partner/ Reseller/ DistributorNamed comemso partner for the Battery Cell Simulator (BCS) globally with the exception of Japan (where TOYO Corporation covers BCS). Strategic global distribution and integration partner for the BCS line.
• Aimil Ltd.standard — indiaChannel Partner/ Reseller/ DistributorAuthorized comemso sales partner for the EVCA in India.
• UL Solutionsstrategic — co-hosted iec 61851-23 webinarStrategic or Co-development PartnerCo-hosted webinar with comemso group titled "EVSE Testing Under Control: Navigating IEC 61851-23 and Beyond" on Tuesday, June 30, 2026 — a joint training session for EVSE manufacturers, labs and certification experts combining UL Solutions' standards expertise with comemso's test solutions.
• CharIN e.V.core — standards ecosystem memberOthersComemso is a member of CharIN e.V., the industry association driving the Combined Charging System (CCS) and Megawatt Charging System (MCS) standards. Comemso is also an official sponsor of the CharIN MCS Controller Testival Europe 2025 (Barcelona, 1–2 April 2025) and an early supporter of MCS test solutions.
• CHAdeMO e.V.core — standards ecosystem memberOthersComemso is a member of CHAdeMO e.V., the association behind the CHAdeMO DC charging standard supported across comemso's EVSE and EV test product families.
• Cluster E-Mobility Süd-Westminor — regional cluster membershipOthersComemso is a member of Cluster E-Mobility Süd-West, a regional industry cluster promoting electromobility in Baden-Württemberg and the south-west of Germany.

Scale indicators10 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Chroma ATE: Taiwan-based test and measurement company with a broad portfolio of battery cell testers, EVSE test systems and power electronics test equipment. Directly competes with Comemso in BMS cell simulation and EV/EVSE conformance testing across global OEMs and Tier-1 suppliers.
• dSPACE: German provider of HIL simulation and validation tools for automotive ECUs including BMS development. Directly competes with Comemso's BCS offering for BMS validation customers, with strong overlap in automotive OEM and Tier-1 R&D budgets.
• OPAL-RT Technologies: Real-time HIL simulator vendor and Comemso's named global distribution partner for BCS outside Japan. Overlaps with Comemso in battery cell emulation and power electronics HIL, serving many of the same automotive and energy customers.
• Vector Informatik: German automotive software and tools vendor whose CANoe environment hosts Comemso's EVCA/EVSE test UI and conformance test libraries (DIN 70121, ISO 15118-4/-5). Overlaps with Comemso on EV/EVSE charging protocol validation tooling for OEMs and Tier-1 suppliers.
• Bitrode: US-based manufacturer of battery formation and test equipment for cell, module and pack-level testing. Overlaps with Comemso's BCS in the broader battery test equipment category, particularly with cell manufacturers and pack integrators.

Broad incumbents

• Keysight Technologies: Large global test-and-measurement incumbent with EV/EVSE charging conformance, power electronics and battery test solutions. Competes with Comemso at the EVCA/Easy Chester level but as part of a much broader portfolio spanning many industries.
• AVL List: Large Austrian automotive engineering and test systems provider covering powertrain, battery and EV development. Competes broadly with Comemso at the OEM and Tier-1 level across BMS, EV and EVSE validation, but as part of a much wider services-and-tools portfolio.
• Emerson (NI): Owns National Instruments and its broad PXI-based test platform used in EV, battery and EVSE test systems. Competes with Comemso as part of a much larger automation/test portfolio sold to automotive and energy customers globally.

Regional players

• TOYO Corporation: Japanese test-and-measurement distributor and Comemso's named Silver-tier partner for EVCA and BCS in Japan. Comparable in that it sells and integrates similar EV/EVSE and battery test systems into Japanese OEM and certification lab customers.
• Hioki E.E. Corporation: Japanese manufacturer of electrical measurement instruments including power meters, clamp meters and battery/EVSE diagnostic tools. Overlaps with Comemso's EVSE field-testing and calibration category from a Japan-centric base with strong metrology heritage.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCsCWiWd6oFHs_zkAMnz2b-g
• LinkedInlinkedin.com/company/comemso
• Facebookfacebook.com/comemso

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 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 Comemso