Staff & Vacancies
Accreditation Services International takes pride in the high level of professionalism and competence of its staff.
All staff follow a continuous professional development program, including bi-annual training and calibration workshops at ASI headquarters. New lead assessors undergo a six-month training period before performing their first assessment. All staff performing assessments are trained as ISO 9001 Lead Auditors and most are SA8000 qualified.
ASI welcomes spontaneous applications from qualified auditors.


Guntars Laguns, Managing Director
Romona Anton, Business Administration Manager
Catalina Romero, Accreditation Program Officer
Uriel Barrantes, Accreditation Program Officer
Paolo Tranquillini, Compliance Program Manager
Dr Sönke Fischer, Senior Accreditation Program Manager Fisheries
Dr Wetjens Dimmlich, Accreditation Program Manager Fisheries
Boris Sulzberger, Accreditation Program Manager Fisheries
Anne Nistad, Lead Assessor Traceability
Phil Crocombe, Lead Assessor Fisheries and Traceability
Edith Lam, Lead Assessor Traceability
Dr Wesley Toller, Lead Assessor Fisheries and Traceability
Etienne Kuzong, Accreditation Program Manager Forestry
Frank Katto, Lead Assessor Forestry
Dr Martin Walter, Lead Assessor Forestry
Simon Armstrong, Lead Assessor Forestry, RSPO
Dr Marta Margarido, Lead Assessor Forestry
Xiangjun Yang, Trainee Lead Assessor Forestry
Matthias Wilnhammer, Trainee Lead Assessor Forestry