Safety & Quality with tradition

H. Anger's Söhne - Drilling and well construction company - since 1863

Certificates and Qualifications


HAS operates modern equipment and optimally adapted technology, and employs highly experienced staff to carry out the works. Central to our company policy is the avoidance and control of accidents as well as of damages to the environment or assets. Above all, we seek to protect and support the health of our employees. Various factors help to achieve this such as, for example, the precise controlling of responsibilities and procedures. Other important aspects include the use of certified and environmentally friendly equipment only as well as a successful implementation of emission-reducing measures for noise, dust, odours and light.

We are convinced that near misses and accidents, occupational diseases and damage to property, to persons or to the environment are avoidable and our commitment is zero harm to personnel.

DVGW Certificate

DVGW stands for “Deutscher Verein des Gas- und Wasserfaches e.V.”, which means German Technical and Scientific Association for Gas and Water. The certification following their technical rule W 120 is a qualification process for companies active in the fields of drilling engineering, well construction, well rehabilitation and geothermal energy. Technical rule W 120 determines all the specific demands regarding personnel, field and equipment of the companies according to the state of the art.

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Anger DVGW

SCC Certifikate (english)

We are SCC (Safety Certificat Contractors) certificated since 2006.

With a certification according to SCC / SCP we demonstrate the systematic training of our staff in terms of occupational health, safety and environmental protection (HSE). With this we minimize the risks for our employees and reduce potential downtime costs.

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ISO 9001:2015 Certificate (english)

We are  ISO 9001 certificated since 2014. The certification is for us the basis for the continuous improvement process of the company’s internal quality management system (QMS).

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Download PDF (EN)