VLOG Team and Office
The employees of the VLOG office in Berlin ensure the smooth running of the "Ohne Gentechnik" certification, licensing, assignment of seals, quality assurance and accounting, look after the members, organise events and ensure the flow of information. Here you will find the contact persons for your concerns with their direct e-mail addresses. You can reach us by telephone via our head office at +49 30 2359 945 00.

Alexander Hissting
Managing Director
info(at)ohnegentechnik(dot)org
Sabine Künzelmann
Team Media and Public Relations
s.kuenzelmann(at)ohnegentechnik(dot)org
Josefine Schlereth
Head of Seal and Standard Usage
j.schlereth(at)ohnegentechnik(dot)org
Team management; Checking of product layouts (outside of Germany); Database management
Lise Especel
Team Seal and Standard Usage
l.especel(at)ohnegentechnik(dot)org
Initial enquiries; Registration for Standard usage; Membership management
Rebecca Hellwig
Team Seal and Standard Usage
r.hellwig(at)ohnegentechnik(dot)org
Initial enquiries; Registration for Standard usage; Membership management
Maja Bergmann
Team Seal and Standard Usage
m.bergmann(at)ohnegentechnik(dot)org
Initial enquiries; Licensing of seal usage
Pawel Pilak
Team Seal and Standard Usage
p.pilak(at)ohnegentechnik(dot)org
Initial enquiries; Licensing of seal usage; Sanction processing seal usage; Checking of product layouts
Annika Rother
Team Seal and Standard Usage
a.rother(at)ohnegentechnik(dot)org
Initial enquiries; Registration for Standard usage; Membership management
Sophia Hohnerlein
Team Seal and Standard Usage
s.hohnerlein(at)ohnegentechnik(dot)org
Student employee
Kerstin Geißler
Head Quality Assurance
k.geissler(at)ohnegentechnik(dot)org
Head Quality Assurance; Project management; Contact person for certification bodies
Ulrike Anhut
Team Quality Assurance
u.anhut(at)ohnegentechnik(dot)org
Implementation and development VLOG Integrity programs; Implementation sanction procedure for certification bodies
Matthias Werner
Team Quality Assurance
m.werner(at)ohnegentechnik(dot)org
Implementation and development VLOG Integrity programs, VLOG Integrity auditor for verification audits and CB audits
Anika Berner
Team Quality Assurance
a.berner(at)ohnegentechnik(dot)org
VLOG Integrity auditor for verification audits; Project development VLOG Standard
Marius Große Lordemann
Team Quality Assurance
m.grosse.lordemann(at)ohnegentechnik(dot)org
VLOG Integrity auditor for verification audits
Jürgen Stening
Team Quality Assurance
j.stening(at)ohnegentechnik(dot)org
VLOG Integrity auditor for verification audits
Carmen Brzoska
Team Quality Assurance
c.brzoska(at)ohnegentechnik(dot)org
Contact person for laboratories and GMO analyses, Consulting regarding food processing, Food retail and component testing
David Röhl
Team Quality Assurance
d.roehl(at)ohnegentechnik(dot)org
Consulting regarding logistics, Feed production, Agriculture; Recognition certification bodies, Benchmarking
Sophia Runge
Team Quality Assurance
s.runge(at)ohnegentechnik(dot)org
Development VLOG Standard, Organisation of standard technical working group; Consulting regarding logistics, Feed production, Agriculture; Benchmarking
Mitsuko Kühn
Team Quality Assurance
m.kuehn(at)ohnegentechnik(dot)org
Database management, Support CB-portal, Trademark law
Laura Rocha Pantoja
Team Quality Assurance
l.rocha.pantoja(at)ohnegentechnik(dot)org
Student employee

Ulrich Hartmann
Representative for Development Management
u.hartmann(at)ohnegentechnik(dot)org
Further education, Workplace health care and integration management
Teresa Jehle
Staff Position for special projects
t.jehle(at)ohnegentechnik(dot)org
Cross-team project management; Database management with focus on evaluations
Reinhold Abele
Head of Central Administration
r.abele(at)ohnegentechnik(dot)org
Team management; Data privacy
Ahmed Haj Hamoud
Team Central Administration
a.haj.hamoud(at)ohnegentechnik(dot)org
IT administration; IT project management; Data privacy
Nadia Weitner
Team Central Administration
n.weitner(at)ohnegentechnik(dot)org
Office management; Workplace health; Workplace safety; Participation in PR and events

Paul Wielan
Team Central Administration
p.wielan(at)ohnegentechnik(dot)org
IT administration; IT project management