Management systems

Policies and certifications

The DHI Business Management System is an integrated system for the management of business, quality, business integrity, environment, and health and safety.


The system fulfils the requirements of ISO 9001 (quality management), ISO 14001 (environmental management) and ISO 45001 (health and safety management). All DHI offices are certified according to ISO 9001 and certification according to ISO 14001 and ISO 45001 are optional. Each DHI company and office may at present have a different status with respect to certifications. Please consult the list of certifications and office specific scopes available below on this page.


Our environmental laboratory in Denmark performs accredited testing according to ISO 17025 and OECD's Good Laboratory Practice (GLP).


Jan Ole Hansen
Vice President, Group QEHS and Quality Manager, DK



Business excellence policy

Our commitment to develop and strengthen our management systems to improve performance and create value for our stakeholders.

Environmental policy and objectives

Our commitment to control and improve the environmental impact of our operations and supply chain.

Health and safety policy

Our commitment to manage health and safety in the workplaces ensuring that no activity put the safety of people at risk.

Diversity, equality and inclusion policy

Our commitment to unite our organisation and maximise the potential of our global competencies and skills. For our people, it means that we enable them to make an impact, we foster innovation, and we grow and develop a culture of collaboration.

ISO Certificates

ISO 9001 Certificate - DHI A/S

Certification of quality management systems covering all DHI’s activities on multiple sites.

ISO 17025 Certificate - DHI Denmark

Accreditation of analysis performed at our testing laboratory in Denmark.

ISO 45001 Certificate - DHI Denmark

Certification of health & safety management systems covering all DHI’s activities in Denmark.

ISO 9001 Certificate - DHI Singapore

Certification of quality management systems covering all DHI’s activities in Singapore.

ISO 14001 Certificate - DHI Singapore

Certification of environmental management systems covering all DHI’s activities in Singapore.

ISO 45001 Certificate - DHI Singapore

Certification of occupational health and safety management systems covering all DHI’s activities in Singapore.

Laboratory certificates and authorisations

FIDIC code of ethics

It’s our company policy to comply with the International Federation of Consulting Engineers (FIDIC) Code of Ethics. They are:

Responsibility to society and the consulting industry

The consulting engineer shall:

  • Accept the responsibility of the consulting industry to society.
  • Seek solutions that are compatible with the principles of sustainable development.
  • At all times uphold the dignity, standing and reputation of the consulting industry.


The consulting engineer shall:


  • Maintain knowledge and skills at levels consistent with development in technology, legislation and management, and apply due skill, care and diligence in the services rendered to the client.
  • Perform services only when competent to perform them.



The consulting engineer shall:

  • Act at all times in the legitimate interest of the client and provide all services with integrity and faithfulness.



The consulting engineer shall:

  • Be impartial in the provision of professional advice, judgement or decision.
  • Inform the client of any potential conflict of interest that might arise in the performance of services to the client.
  • Not accept remuneration which prejudices independent judgement.


Fairness to others

The consulting engineer shall:


  • Promote the concept of “Quality-Based Selection” (QBS).
  • Neither carelessly nor intentionally do anything to injure the reputation or business of others.
  • Neither directly nor indirectly attempt to take the place of another consulting engineer, already appointed for a specific work.
  • Not take over the work of another consulting engineer before notifying the consulting engineer in question, and without being advised in writing by the client of the termination of the prior appointment for that work.
  • In the event of being asked to review the work of another, behave in accordance with appropriate conduct and courtesy.



The consulting engineer shall:


  • Neither offer nor accept remuneration of any kind which in perception or in effect either a) seeks to influence the process of selection or compensation of consulting engineers and/or their clients or b) seeks to affect the consulting engineer’s impartial judgement.
  • Co-operate fully with any legitimately constituted investigative body which makes inquiry into the administration of any contract for services or construction.