The below listed Dr. Graband & Partner GmbH employees are recognized as experts by Eisenbahn-Bundesamt (Federal Railway Authority).

Dipl.-Ing. Lutz DudloAssessment/Verification of Signal Instal­la­tions: Assess­ment of Plan
Dipl.-Ing. Wolf-Eckhard ScholzAssessment/Verification of Signal Instal­la­tions: Assess­ment of Plan
Dipl.-Ing. Detlef SackAssessment/Verification of Safety Instal­la­tions: Assess­ment of Functional Proofs
Dipl.-Betriebsw. Uwe JanderAssessment/Verification of Signal Instal­la­tions: Assess­ment of Plan
Dipl.-Ing. Michael RahfAssessment/Verification of Signal Instal­la­tions: Assess­ment of Appli­ca­tion-Indepen­dent Safety Proofs

The below listed Dr. Graband & Partner GmbH employees are autho­rized persons accepting imple­men­ta­tion planning of Deutsche Bahn AG (German Railways).

Dipl.-Ing. Joachim HaßelmannAutho­rized Person Accepting Imple­men­ta­tion Planning according to VV BAU
Dipl.-Ing. Daniela HennebergAutho­rized Person Accepting Imple­men­ta­tion Planning according to VV BAU
Dipl.-Ing. Reinhard KlemmAutho­rized Person Accepting Imple­men­ta­tion Planning according to VV BAU-STE
Dipl.-Wirt.-Ing. Marc ZachriesAutho­rized Person Accepting Imple­men­ta­tion Planning according to VV BAU-STE

The below listed Dr. Graband & Partner GmbH employees are recognized as competent experts by regional super­vi­sory autho­ri­ties.

Dipl.-Ing. Klaus-Dieter Sievers and Dipl.-Ing. Wolf-Eckhard ScholzSenate Depart­ment for Urban Develo­p­ment in Berlin: recogni­tions of BOStrab (German Ordinance on the Construc­tion and Operation of Rail Systems for Light-Rail Transit) as qualified persons for the assess­ment of safety instal­la­tions
Dipl.-Ing. Klaus-Dieter SieversFree Hanseatic City of Bremen: Recogni­tion as qualified person according to BOStrab for the assess­ment of railway signaling
Dipl.-Ing. Klaus-Dieter Sievers und Frank StrobeltDüssel­dorf district govern­ment: recogni­tions as qualified persons for safety instal­la­tions within the scope of BOStrab

Some Dr. Graband & Partner GmbH employees are certified by third parties.

Several employeesTÜV Akademie GmbH Unter­neh­mens­gruppe TÜV Rhein­lan­d/­Berlin-Branden­burg (Technical Super­vi­sory Associa­tion (TÜV) Academy Company Group TÜV Rhine­lan­d/­Berlin-Branden­burg): Certi­fi­ca­tions as safety and health protec­tion coordi­na­tors on construc­tion sites in accordance with directive 92/57/EWG and the construc­tion site ordinance
Dipl.-Ing. Marcus IntzePilz GmbH & Co. KG: TÜV-NORD-Certi­fi­ca­tion as CMSE® – Certified Machinery Safety Expert