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Clemios works with OEMs, charging infrastructure providers, and backend teams building OCPP-based EV charging systems. If you are planning an OCPP 2.0.1 integration, upgrading from an existing deployment, or validating interoperability before production, you are in the right place.
This page is intended for technical and delivery discussions.
Clemios is an eMobility software engineering partner delivering EV charging, OCPP, embedded, and test-ready systems through dedicated engineering teams for German and EU companies.
English is the working language for all engineering and delivery activities at Clemios.
How Can We Help?
Select the path that matches your engineering need.
OCPP Engineering and Integration
New OCPP 2.0.1 systems, migrations from 1.6, CS-to-CSMS integration, charger firmware, backend connectivity.
Talk to an OCPP engineer →Validation and Interoperability
OCPP interoperability testing, OCTT-aligned validation, backend compatibility, regression test suites.
Discuss validation →Partnerships and Business
Dedicated engineering teams, long-term collaboration, EoR arrangements, commercial discussions.
Contact business team →This selection helps us route your request to the right engineering team.
Describe Your Engineering Need
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Working Hours
Mon to Fri, 08:00 to 17:30 GMT+1
Sat, 08:00 to 12:00 GMT+1
Working Languages
English, German
What Happens Next
Your request is reviewed by a Clemios engineer, not a generic sales inbox. We typically respond within one business day.
Where We Are
Clemios SARL
Bangangte, Cameroon
Headquarters and engineering centre
European Business Development
Germany
Strategic partnership development
Frequently Asked Questions
The questions below clarify how we work and what we support.
eMobility software engineering (OCPP, EV charging), embedded firmware development (C/C++, 8 chip vendors), QA and test engineering, and dedicated engineering teams.
Headquartered in Bangangte, Cameroon. Strategic business development based in Germany. Engineering delivery aligned with German and EU standards.
Dedicated engineering teams, Employer of Record (EoR), and project-based engagements. Each model includes Germany-first communication and reporting.
We sign NDAs before any technical discussion. All client names and project details are protected. Our website presents only sanitised case studies.
C, C++, Python. OCPP 2.0.1, Modbus, CAN Bus, MQTT. Ceedling, GoogleTest, pytest for testing. See our full tooling stack on the Proof of Know-How page.
Timelines depend on scope and team availability. Initial consultation and scoping typically take one to two weeks.
OCPP 2.0.1 is actively implemented. OCPP 2.1 is in development. We support OCPP-J (JSON over WebSocket).
No. FlexCharge.OCPP is an internal engineering asset that our teams use to accelerate OCPP delivery. It is not a product, SaaS, or licensable stack.
The Clemios Academy trains our own engineers. We do not currently offer external training services. We do provide knowledge transfer workshops as part of project engagements.
All IP created during an engagement belongs to the client. Engineers sign NDAs and IP assignment agreements as part of their employment contracts.
Off-the-shelf stacks cover common scenarios. When your charging system has custom hardware, specific backend integrations, or field conditions that differ from the vendor defaults, those stacks need adaptation. Clemios handles the integration, validation, and edge cases that stack vendors leave to the buyer.
Clemios does not certify. Certification is granted by the Open Charge Alliance (OCA) through their OCTT testing process. We actively test with OCTT and build systems that align with OCA requirements, but the certification decision rests with OCA.