Certified Quality

The Matthäi Group is very much aware of its special responsibility towards its customers and employees in its daily business. This responsibility is the reason for our high quality standards – and we meet these every day. This is reflected by the certification of our quality and services.

ISO 14001:2015 Certification

Pre-Qualification VOB (German Contract Procedures for Construction Work)

Quality Alliance for Urban Road Construction

DSH-V Quality Association

TÜV Nord

SCCP Certification


ISO 9001 Certification

German Association of Gas and Water Specialists

RAL Quality Seal

RAL Quality Seal

RAL Quality Seal

RAL Quality Seal

AMS BAU Quality Seal

DIN ISO 50001:2018


SCL Level 3


DGNB members



EMB-Wertemanagement Bau e.V.

Specialist waste management company in accordance with the German Ordinance on Specialist Waste Management Companies

Employers’ Liability Insurance Association for the Construction Industry

Specialist waste management company in accordance with Section 56 of the German Closed Cycle Management Act monitored by Entsorgergemeinschaft Bauen und Umwelt e.V.


Bauindustrieverband Ost e.V.

B11 authorised processor

Deutsche Bahn pre-qualification certificate

Quality mark for concrete

Quality mark for building maintenance

Compliance and product certification

HA3 – High-rise demolition blasting

German Demolition Association

Association of Building Supervisors for Concrete Installations (GÜB)

Quality Association for Concrete Road Surfaces

TÜV Thüringen SCCpetrol

TÜV Thüringen ISO 9001

Semi-rigid top layers