Integrity and transparency are top priorities at ista. They are the basis for a trusting relationship between all ista employees and with all our stakeholders. Our Code of Conduct obliges all ista Group employees to comply with international human rights, labour, anti-corruption, competition and environmental laws and standards. ista complies with the UN Declaration on Human Rights, the International Labour Organization (ILO) Declaration of Principles and the UN Convention against Corruption.

Our compliance management system helps us to ensure compliance with all requirements across the ista Group. The effectiveness of the compliance management at ista has been certified by the Institute for Corporate Governance in the German Real Estate Industry (ICG). With our Business Partner Code of Conduct, we require our suppliers to comply with environmental, social and governance standards. These also include the ILO Declaration of Principles and the principles of the UN Global Compact, the guidelines of the Organisation for Economic Cooperation and Development (OECD) and the UK Modern Slavery Act. You can also find out more in our Policy Statement according to the Act on Corporate Due Diligence Obligations in Supply Chains.

It is important to us that we become aware of all compliance violations and potential misconduct that violates applicable laws or our Code of Conduct.

ista offers all employees, as well as customers, suppliers, business partners and all other external stakeholders, the opportunity to submit reports via the 'Speak Up' reporting system – including in anonymous form. The whistleblowing system is operated by an independent third party. All reports are treated in strict confidence by ista's Compliance Organisation. Whistleblowers are protected from any retaliation by ista, provided the information is provided in good faith. Please be aware that intentional reporting of false information is prohibited by law. For further details, please refer to our Complaints Rules of Procedure.

In addition, any compliance concerns can also be raised directly to your supervisor / ista business contact or to the ista Compliance Organisation.

We appreciate your trust and support.

To make a report via the 'Speak Up' system, please use the following link: Speak Up! We care!


As a further option for submitting a report, the respective appointed state authority provides an external reporting office for receiving information. In Germany, reports can be submitted to the Federal Office of Justice.