What Chargebyte does

Chargebyte is a Leipzig, Germany-based supplier of charging communication controllers and software for the EV charging ecosystem, serving EV manufacturers, charging station OEMs, and commercial fleet operators globally. The company's core technology is powerline communication (PLC) based on HomePlug GreenPHY, implementing the ISO 15118-2, ISO 15118-20, and DIN 70121 charging communication standards that govern how electric vehicles and charging stations negotiate sessions, authenticate via Plug & Charge, and execute bidirectional (V2G) energy transfers. Chargebyte produces both vehicle-side controllers (EVCC: Charge Control L, Charge Control L MCS, Charge Module S) and station-side controllers (SECC: Charge Control C, D, F, V, and the Charge SOM System-on-Module), along with PLC Stamp modules, evaluation boards, and hardware-independent CB V2G Core software stacks. The company exclusively developed the ISO 15118 Stack and EXIdecoder for the EVerest open-source framework under Linux Foundation Energy, providing it with a distinctive ecosystem position.

Chargebyte generates revenue through multiple streams: hardware product sales to OEM customers (its primary stream), software licensing for CB V2G Core stacks, custom engineering services billed hourly, training workshops on charging standards, PSD calibration services, and — post the January 2024 acquisition of nymea — subscription-based energy management software (CB Energy, CB Load Balancer, CB Solar Charging, CB Dynamic Tariffs, CB Apps). Distribution is predominantly direct enterprise sales supplemented by the prisma sales channel partnership for European distribution of Vertexcom-based modules. The company operates from headquarters in Leipzig with engineering offices in Braunschweig, Garching bei München, and Ulm, plus international subsidiaries in Greenville, South Carolina (US, established September 2023) and Vienna, Austria (chargebyte austria GmbH, established January 2024). It is privately held and backed by Friedrich & Wagner Holding GmbH.

The company has delivered more than 2.5 million products to customers across over 50 countries, with named engagements spanning pepper motion (up to 3,500 commercial vehicle charge controllers by 2025), e-troFit (electric bus conversions), SUNCAR (Interflow 500 DC fast charging system), and HeyCharge (SecureCharge building charging). Chargebyte holds notable certifications including ISO 26262 ASIL-B functional safety for Charge Control L, ECE R10 European road clearance, and supports the OCPP 2.0.1/2.1.0 backend protocol, positioning it ahead of EU AFIR regulatory mandates requiring ISO 15118-2 (January 2026) and ISO 15118-20 (2027) compliance for public chargers.

Name

Chargebyte

Legal name

chargebyte GmbH

Website

https://chargebyte.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

51–100 employees

Short description

Chargebyte is a Leipzig, Germany-based supplier of EV and EVSE charging communication controllers, PLC modules, and ISO 15118 software stacks serving global electric vehicle manufacturers, charging station OEMs, and commercial fleet operators.

Ownership category

akta.pro rank

Product category

EV Charging Communication Hardware

NAICS

Electrical Equipment Manufacturing (3353), Electrical Equipment Manufacturing (33531), Communication and Energy Wire and Cable Manufacturing (33592)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electronic Connectors (3678)

akta.pro primary industry

Charging Infrastructure Components (connectors, cables, dispensers, payment/controls) (IMAGAHAH)

akta.pro secondary industries

EV Charging Hardware Manufacturing (AC/DC Chargers/Dispensers) (IMACACAE), Automotive Charging Hardware Manufacturing (On-board Chargers, Charge Inlets, DC-DC) (IMACAJAK), EV/Industrial Charging Power Electronics (Chargers, rectifiers, power stages) (IMAGADAF)

Keywords

• EV charging controllers
• ISO 15118 communication
• Powerline communication modules
• EVSE communication hardware
• Automotive charge controllers

Headquarters

HQ city

Leipzig

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Products: Sale of EV charging communication controllers (EVCC, SECC), PLC modules, and evaluation tools. Products include Charge Control series, Charge Module series, PLC Stamp series, and Charge SOM. Customers are EV and EVSE manufacturers who integrate these modules into their products.
2. Software Licenses: CB V2G Core software stacks (EV and EVSE versions) sold as static libraries. Hardware-independent licensing allowing customers to run on their preferred hardware platform. Software integrates DIN 70121, ISO 15118-2, and ISO 15118-20 protocols.
3. Engineering Services: Custom development services billed on hourly basis. Services include charging controller development, software stack customization, PCB design, prototyping, and full end-to-end development from concept to production. Engineering team specializes in DIN 70121, ISO 15118-2, and ISO 15118-20.
4. Training Services: Online training workshops on EV charging communication standards (IEC 61851, DIN 70121, ISO 15118-2, ISO 15118-20). 3-hour workshop combining theory with hands-on practice using chargebyte hardware.
5. PSD Calibration Services: Power Spectral Density calibration for PLC communication optimization. Service offered on-site, in-house, or remotely. Ensures compliance with ISO/IEC 15118 and DIN 70121 standards.
6. Energy Management Software: CB Energy software for smart charging including dynamic load management, solar charging, dynamic tariffs, and smartphone apps. Hardware-independent software running on EVerest.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Chargebyte designs and manufactures hardware charge controllers for electric vehicles (EVCC) and EV charging stations (SECC/SECC), along with HomePlug GreenPHY Powerline Communication modules (PLC Stamps). It also licenses software stacks (CB V2G Core EV and EVSE) that enable ISO 15118-2/-20, IEC 61851, DIN 70121, GB/T 27930, and SAE J3400 compliant communication for CCS, NACS, GB/T, AC charging, V2G, Plug & Charge, and Megawatt Charging System (MCS) use cases.

Product overview

Chargebyte offers a comprehensive EV/EVSE charging communication portfolio combining hardware controllers and software stacks. The product lineup includes EV Controllers (Charge Control L, Charge Control L MCS, Charge Module S) for vehicle-side communication, and EVSE Controllers (Charge Control C, D, F, V and Charge SOM) for charging station-side communication, all supporting ISO 15118-2, ISO 15118-20, and DIN 70121 standards. Software products include CB V2G Core EV/EVSE stacks (hardware-independent protocol libraries), the EVerest open-source framework (exclusively developed by chargebyte), and Energy Manager suite (CB Energy, CB Load Balancer, CB Apps, CB Solar Charging, CB Dynamic Tariffs) acquired through nymea. PLC Modules (PLC Stamp Multi, Mini 2, Micro 2) provide HomePlug Green PHY connectivity. Comprehensive evaluation tools, training, PSD calibration, and engineering services support the product portfolio. The company provides both modular components for integration and complete ready-to-use solutions targeting passenger vehicles, commercial trucks, buses, and off-highway machinery.

Differentiator

Problem solved

Functional benefit

Brands

• cbV2G: Open-source V2G software library mapping ISO 15118-2 and DIN 70121 communication standards
• cbEXIGen
• CB Energy
• CB Solar Charging
• CB Load Balancer
• CB Dynamic Tariffs
• CB Apps
• nymea:energy

Products and services

• Charge Control L Vehicle-side EV charge communication controller (EVCC) for AC and DC charging, with ASIL-B functional safety. Supports CCS, NACS, GB/T, ISO 15118-20, V2G, Plug & Charge, and other major charging protocols. Designed for automotive OEMs integrating ISO 15118-compliant communication into production EVs.
• Charge Control L MCS Megawatt Charging System (MCS) variant of the Charge Control L EV charge controller, targeted at heavy-duty and commercial electric vehicles requiring high-power charging capability.
• Charge Module S Compact EV charging module for vehicle-side integration, providing the building block for EVCC implementations.
• EVAcharge SE Combined charge controller usable on both the EV and EVSE side, supporting ISO 15118-compliant communication for OEMs and charger manufacturers.
• Charge Control C EVSE-side charge communication controller (SECC) for AC and DC charging stations, providing ISO 15118 and IEC 61851 compliant communication.
• Charge Control D EVSE-side charge controller based on the VertexCom HomePlug GreenPHY PLC chipset, providing an alternative silicon path for SECC implementations.
• Charge Control F EVSE-side charge communication controller variant for AC and DC charging stations, supporting ISO 15118 / IEC 61851 compliant operation.
• Charge Module E Compact charging module for EVSE-side integration, providing the building block for SECC implementations in AC/DC charging stations.
• Charge SOM System-on-Module for EVSE charge controllers, built on PHYTEC hardware platform, enabling manufacturers to integrate charge communication functionality into their charging products.
• Charge Control V (CCV) Next-generation EVSE charge controller platform, positioning Chargebyte as a long-term partner for charging-station manufacturers requiring future-proof architecture.
• PLC Stamp Multi Multi-standard Powerline Communication (PLC) module based on HomePlug GreenPHY for ISO 15118 / IEC 61851 communication between EVs and EVSEs, available in a production-grade form factor.
• PLC Stamp Multi VERT Variant of the PLC Stamp Multi based on VertexCom HomePlug GreenPHY silicon, offering an alternative PLC chipset for manufacturers.
• PLC Stamp Mini 2 Compact HomePlug GreenPHY PLC module for space-constrained EV/EVSE integrations.
• PLC Stamp Micro 2 Smallest HomePlug GreenPHY PLC module form factor for highly space-constrained EV/EVSE integrations.
• CB V2G Core EV ISO 15118-2/-20 compliant V2G communication software stack for the EV side (EVCC), licensed to automotive OEMs.
• CB V2G Core EVSE ISO 15118-2/-20 compliant V2G communication software stack for the EVSE side (SECC), licensed to charging station manufacturers.
• CB Energy Energy management software suite that orchestrates charging, renewables integration, and grid interaction for EVSE operators and site owners.
• CB Load Balancer Load balancing software for charging sites, distributing available power across multiple EVSEs and EVs.
• CB Apps Apps layer of Chargebyte's CB software platform, providing additional functionality on top of the core stacks.
• CB Solar Charging Solar-aware charging software module that optimizes EV charging based on photovoltaic generation.
• CB Dynamic Tariffs Dynamic tariff software module that aligns EV charging sessions with variable energy pricing signals.
• EVerest Integration (cbEXIGen / cbV2G) Chargebyte's open-source contributions to the LF Energy EVerest framework, including the cbEXIGen EXI generation tooling and cbV2G ISO 15118-20 implementation, provided under the company's exclusive worldwide integration rights for EVerest.
• Training Services Training services covering ISO 15118, HomePlug GreenPHY, and related EV charging standards, delivered to engineering teams at OEMs, EVSE manufacturers, and tier-1 suppliers.
• PSD Calibration Service Powerline Signal Device (PSD) calibration and conformance service for ISO 15118 / HomePlug GreenPHY stacks, supporting certification of charging products.
• Engineering Services Custom engineering services for ISO 15118 stack integration, charge communication development, and project-based consulting for OEMs and EVSE manufacturers.
• Charge SOM Evaluation Kit Evaluation kit for the Charge SOM System-on-Module, enabling developers to prototype and assess Charge SOM-based EVSE designs.
• Charge Module E Evaluation Board Evaluation board for the Charge Module E, allowing engineers to evaluate the module's capabilities ahead of integration.
• Charge Module S Evaluation Board Evaluation board for the Charge Module S, allowing engineers to evaluate the EV-side module's capabilities ahead of integration.
• PLC Stamp Micro 2 Evaluation Board Evaluation board for the PLC Stamp Micro 2, allowing engineers to evaluate the smallest PLC Stamp form factor ahead of integration.
• CCL Test and Development Adapter Test and development adapter for the Charge Control L (CCL) EV controller, supporting lab validation and integration testing.

Quantifiable outcome

• More than 2.5 million products delivered to customers in over 50 countries
• +2 more outcomes

Named customers5 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

Integration5 records

AI capability2 records

Feature7 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• PHYTECcoreStrategic or Co-development Partner · 4 May 2026PHYTEC develops modular electronics toolkit for EV charging using chargebyte's Charge SOM module. The partnership enables manufacturers to build custom charge controllers without vendor lock-in using PHYTEC's carrier boards with chargebyte's System-on-Module. Custom charge controllers can reach first prototype within ten weeks.
• InfypowerminorGTM or Marketing Partner · 3 April 2024Sponsorship partnership in 2024 ADAC Opel Electric Rally Cup. Team rebranded as Infypower chargebyte e-Rally Team to showcase electric vehicle technology capabilities.
• nymea (now chargebyte austria GmbH)coreStrategic or Co-development Partner · 15 January 2024Acquisition of Austrian IoT platform nymea to expand portfolio in Internet of Energy and energy management. nymea's middleware enables integration of PV systems, battery storage, and charging stations in unified system.
• Linux Foundation Energy (EVerest)coreStrategic or Co-development Partner · 28 March 2023chargebyte releases cbEXIGen and cbV2G software products as open source under the EVerest project. The highly efficient EXI encoder converts V2G XML schema into compact C code for all hardware platforms.
• Vertexcom TechnologiescoreTechnology or Integration · 7 February 2023Tripartite cooperation between chargebyte, Vertexcom, and prisma sales to develop HomePlug GreenPHY modules based on Vertexcom's MSE102x+MSEX2x-i chipsets. Chargebyte uses Vertexcom chips to offer cost-effective PLC modules for EV charging compliant with ISO 15118 CCS communication protocol.
• prisma sales servicecoreChannel Partner/ Reseller/ Distributor · 7 February 2023prisma sales service gmbh is the European distributor for Vertexcom-based modules developed by chargebyte. Part of the tripartite cooperation to drive electromobility market forward.
• Switch (Josev Professional)coreTechnology or Integration · 24 January 2023Partnership to offer Josev Professional unified operating system preconfigured on chargebyte's Charge Control C controllers. Enables advanced capabilities including Plug & Charge, Vehicle-to-Grid, and bi-directional charging for charger OEMs and charging networks.
• PIONIX (EVerest)coreStrategic or Co-development Partner · 24 October 2022Long-term partnership with PIONIX GmbH to integrate EVerest open-source software into all chargebyte charge controllers. chargebyte contributes its ISO 15118-2 and DC standard feature stacks to the EVerest community.
• SUNCARminorStrategic or Co-development PartnerJoint offering of Interflow 500 system combining SUNCAR's interface with chargebyte's Charge Control L for all-in-one fast charging solution for buses, trucks, and construction vehicles.
• CharIN and OCAminorOthersActive membership in CharIN (Charging Interface Initiative) and Open Charge Alliance (OCA) to advance industry standards and collaborate on EV charging standards development.

Scale indicators5 records

Recent moves12 records

Expansion highlights6 records

Direct peers

• PIONIX: Lead maintainer of the EVerest open-source EV charging framework and chargebyte's closest strategic partner. Comparable because both build and commercialize ISO 15118 / OCPP software stacks for EVSE OEMs on the same open-source substrate.
• Vector Informatik: German embedded automotive software specialist offering ISO 15118 stacks, charging communication tools, and automotive test/development environments. Highly comparable as a fellow Stuttgart/Leipzig-area automotive-grade software supplier to EV and EVSE OEMs.
• Bender Group: German specialist in EV charging system components, including charge controllers and electrical safety technology for EVSE. Comparable as a focused European supplier of charging communication and safety components.

Broad incumbents

• Phoenix Contact E-Mobility: Established manufacturer of EV charging connectors, controllers, and infrastructure components. Comparable as a supplier of charging hardware components (connectors, controllers) to EVSE OEMs but at much greater scale and broader portfolio.
• TE Connectivity: Global supplier of automotive and EV charging connectivity solutions, including charging couplers and high-voltage components. Comparable component-level supplier to EVSE and EV OEMs, with significantly broader product breadth.
• STMicroelectronics: Major automotive semiconductor vendor with ISO 15118 / V2G / OCPP reference designs and integrated charge controller ICs. Comparable as an upstream silicon and reference-design provider competing for charge-controller design wins.
• NXP Semiconductors: Leading automotive MCU and connectivity semiconductor vendor with ISO 15118-compliant solutions for EVCC/SECC. Comparable technology competitor whose integrated SoCs could displace discrete controller architectures.
• ABB E-mobility: Global EV charging infrastructure incumbent offering full DC fast charger portfolios including MCS-ready hardware. Comparable as a buyer of charging communication technology and as an indirect competitor with bundled in-house stacks.

Others

• Keysight Technologies: Provides EV charging conformance and interoperability test solutions (including ISO 15118 PLC testing). Comparable as an ecosystem enabler in the same EV charging communication standards space and a potential channel/training partner.

Emerging players

• Infypower: China-based EV charging power module and stack supplier that co-markets with chargebyte in motorsport and uses HomePlug GreenPHY components. Comparable as an emerging global competitor in EV charging communication and power electronics.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/chargebyte
• Instagraminstagram.com/chargebyte_gmbh
• Facebookfacebook.com/profile.php

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Chargebyte