Supplier questionnaire
As worldwide operating plant and machine constructors, the KELLER companies are also purchasers of diverse goods and services. If you are interested in doing business with us, you can use the supplier questionnaire in order to let us know about your range of products and services. Your company information will be entered into our supplier database. If we determine there is a need for your products and services, we will contact you.
General Purchasing Terms and Conditions
Our General Purchasing Terms and Conditions and our Purchasing Terms and Conditions for Supply Contracts serve as a basis for our good and successful cooperation with various suppliers.
In case of any further questions, please feel free to contact us:

Purchase
Do business with us

Head of Procurement and Logistic Department
+49 5451 85-321
ralf.kolthoff@keller.de
Supplier questionnaire
Please fill in mandatory fields marked with *CSR and Code of Conduct
Sustainability, responsibility and partnership - for employees, suppliers and customers
Description
The CSR and Code of Conduct of KELLER HCW GmbH outlines the principles and expectations of our company holds for its business partners*. It is aligned with international standards such as the OECD Guidelines and EcoVadis criteria, combining ethical business practices, environmental responsibility, and social values.
This Code serves as a guideline for all stakeholders along our value chain, supporting our commitment to the highest standards in quality, safety, and sustainable practices.
The CSR and Code of Conduct of KELLER HCW GmbH outlines the principles and expectations of our company holds for its business partners*. It is aligned with international standards such as the OECD Guidelines and EcoVadis criteria, combining ethical business practices, environmental responsibility, and social values.
This Code serves as a guideline for all stakeholders along our value chain, supporting our commitment to the highest standards in quality, safety, and sustainable practices.

1. Scope of application
This Code applies to:
- Employees:
As an internal guideline for ethical and responsible behaviour. - Suppliers and Business Partners:
As a contractual basis for sustainable cooperation. - Customers:
As proof of our commitment to quality, safety and ethical business conduct.
2. Our principles and expectations
2.1 Compliance with laws and standards
KELLER is committed to adhering to all applicable laws and regulations. We expect the same legal compliance and the promotion of lawful behaviour throughout the supply chain from our business partners.
2.2 Labour and human rights
KELLER respects international labour and human rights, including:
2.3 Health, safety and product safety
KELLER guarantees safe working conditions as well as the quality and safety of its products and services.
We expect our business partners to adhere to the same standards, including regular audits and measures to minimise risk.
2.4 Environmental protection and sustainability
KELLER is committed to sustainable resource conservation, emission reduction, and compliance with environmental standards.
We expect our business partners to foster innovative solutions to improve their ecological balance and comply with regulatory requirements.
2.5 Anti-Corruption and fair competition
KELLER rejects corruption, bribery, and anti-competitive practices in the strongest terms.
We expect our business partners to uphold the same integrity and compliance with antitrust regulations.
2.6 Transparency and supplier selection
KELLER prioritizes suppliers who implement social and environmentally responsible practices.
We expect business partners to provide transparency regarding their social and ecological performance and to continuously improve it.
2.7 Quality and continuous improvement
KELLER is committed to the continuous improvement of its products, services, and processes.
We expect our business partners to likewise focus on quality enhancement and process optimization to meet customer requirements.
2.8 Data protection and confidentiality
KELLER protects personal data and business secrets in accordance with applicable data protection laws.
Our business partners undertake to handle data responsibly and to implement data protection guidelines consistently.
2.9 Complaints management and whistleblower protection
KELLER provides a secure platform for reporting violations and ensures the protection of whistleblowers from retaliation.
We expect our business partners to establish comparable reporting channels and to protect whistleblowers.
2.10 Conflicts of interest
KELLER is committed to objective decision-making and expects the disclosure and avoidance of conflicts of interest by its business partners.
2.11 Responsibilities and monitoring
KELLER regularly reviews compliance with this Code through internal audits and partner assessments. We expect our business partners to implement appropriate measures to ensure compliance.
KELLER is committed to adhering to all applicable laws and regulations. We expect the same legal compliance and the promotion of lawful behaviour throughout the supply chain from our business partners.
2.2 Labour and human rights
KELLER respects international labour and human rights, including:
- Freedom of association and the right to collective bargaining.
- Prohibition of forced labour, child labour and discrimination.
2.3 Health, safety and product safety
KELLER guarantees safe working conditions as well as the quality and safety of its products and services.
We expect our business partners to adhere to the same standards, including regular audits and measures to minimise risk.
2.4 Environmental protection and sustainability
KELLER is committed to sustainable resource conservation, emission reduction, and compliance with environmental standards.
We expect our business partners to foster innovative solutions to improve their ecological balance and comply with regulatory requirements.
2.5 Anti-Corruption and fair competition
KELLER rejects corruption, bribery, and anti-competitive practices in the strongest terms.
We expect our business partners to uphold the same integrity and compliance with antitrust regulations.
2.6 Transparency and supplier selection
KELLER prioritizes suppliers who implement social and environmentally responsible practices.
We expect business partners to provide transparency regarding their social and ecological performance and to continuously improve it.
2.7 Quality and continuous improvement
KELLER is committed to the continuous improvement of its products, services, and processes.
We expect our business partners to likewise focus on quality enhancement and process optimization to meet customer requirements.
2.8 Data protection and confidentiality
KELLER protects personal data and business secrets in accordance with applicable data protection laws.
Our business partners undertake to handle data responsibly and to implement data protection guidelines consistently.
2.9 Complaints management and whistleblower protection
KELLER provides a secure platform for reporting violations and ensures the protection of whistleblowers from retaliation.
We expect our business partners to establish comparable reporting channels and to protect whistleblowers.
2.10 Conflicts of interest
KELLER is committed to objective decision-making and expects the disclosure and avoidance of conflicts of interest by its business partners.
2.11 Responsibilities and monitoring
KELLER regularly reviews compliance with this Code through internal audits and partner assessments. We expect our business partners to implement appropriate measures to ensure compliance.
3. Closing remarks
This CSR and Code of Conduct serves as the foundation for a relationship based on trust. Together, we ensure that social, ecological and ethical principles are respected in all business activities.
Version: 05.12.2024
Version: 05.12.2024