Tieto supports a preventative approach to environmental challenges and a responsible way of conducting business operations. The company is included in several sustainability indices and has also been certified according to international standards.

In 2014, Tieto renewed its commitment to the United Nations Global Compact (UNGC). The UNGC is a strategic policy initiative for businesses that are committed to aligning their operations and strategies with ten universally accepted principles in the areas of human rights, labour, environment and anti-corruption.

Tieto's environmental impact is mainly related to energy consumption (heating, cooling, and electricity) for running data centres, offices and other facilities, and to business travel and use of paper and other consumables.

In accordance with the company's environmental management system (EMS), a systematic method is used to identify and evaluate the main environmental aspects. The company's EMS is compliant with ISO 14001. Implementation is based on customer demand and secured through ISO 14001 certification of business operations. The Environmental Policy states that employees are responsible for including environmental awareness and actions in their everyday work. Managers shall ensure that the policy is understood and acted upon within their organizations.

The energy needed for running servers and computers in data centres, including the energy consumed for cooling, accounts for a great part of Tieto's total energy consumption and greenhouse gas emissions. Usually, data centres represent around 30% of the company's total greenhouse gas emissions. Tieto works in a number of ways to improve energy efficiency in the data centres, e.g. by using virtual servers. In addition, the company is re-using energy by recycling excess heat, which is fed back to the local district heating network. This solution is currently in use in the companys new-generation data centre in Espoo, Finland.

To avoid environmental risks in the supply chain and reduce the environmental impacts from purchased goods and services, Tieto is continuing its dialogue with suppliers, subcontractors and partners. The aim is to ensure that they fulfil the high ethical and environmental requirements stated in the company's Supplier Code of Conduct Rule. This code is based on the UNGC and requires having an environmental management system equivalent to ISO 14001 or the Eco-Management and Audit Scheme (EMAS) in place.

To reduce greenhouse gas emissions and other environmental impacts, Tieto aims to cut down travelling as much as possible. The company's travel policy encourages minimizing travel to internal meetings and favouring the use of digital tools such as video and teleconferences or live meetings.

For the fourth consecutive year, Tieto achieved a position of leadership with regard to the quality of climate change data it had submitted to the global marketplace through CDP, the international NGO that drives sustainable economies. The achievement was announced in the CDP Nordic 2014 report - Natural capital disclosure for business resilience. Tieto has earned leadership status by submitting climate change information through CDPs global environmental disclosure system for independent assessment against CDPs widely-respected scoring methodology. Company disclosures to CDP are marked out of a total of 100. Those organizations graded within the top 10% constitute the CDLI. Tieto's score was 98. High scores indicate the provision of robust climate data upon which decisions that will catalyse progress towards low carbon economies can be made. The index highlights companies providing a high level of transparency in their disclosure of climate-related information.

Tieto published its fifth GRI-based Corporate Responsibility (CR) report in 2014. This report, including an overview of Tieto's environmental, social and economic performance during 2013, followed the new Global Reporting Initiative G4 guideline (core level) and was externally assured according to the AA1000 standard. An overview of Tieto's CR performance in 2014 will be published in a separate CR report during spring 2015.