Certified Quality
High Security
Trust
Certifications and Approvals
We hold numerous recognized certifications and approvals. As an approved aviation company, we are authorized to manufacture and maintain aviation products. Recognized by EASA, product development at HOLMCO already takes place according to ETSO standards.
EN ISO 9100
(contains DIN EN ISO 9001)
EU Directive 2014/34/EU
(Ex protection)
DIN EN ISO 14001
Approved production organization
EASA Part 21G
Approved maintenance organization
EASA Part 145
Aircraft Audio Systems and Equipment
ETSO-139a
EASA Part IS – Regulations (EU) 2023/203
Annex II and (EU) 2022/1645 Annex



