KNSI Aviation Engineering was established in 2014 as an EASA Approved Part 21 Subpart J Design Organization (DOA) and gained the EASA Part 21 Subpart G Production Organization Approval in 2015. KNSI acquired the EASA Part 145 Maintenance Organization Approval in 2016 and vastly expanded the design, production, and maintenance capabilities in the following years. After the Brexit in 2021, KNSI acquired the EASA equivalent UK CAA Part 21 Subpart J DOA, Part 21 Subpart G POA & Part 145 Approvals and in 2022 KNSI was able to obtain the new EASA Part 21 Subpart J Design Organization Approval (DOA) for the KNSI branch based in Ireland. We have been providing reliable engineering solutions, high-quality production and maintenance services for leading airlines, MROs, aviation leasing companies, and many more across the world and have been the preference of many customers due to our quality service, competitive pricing, and timely deliveries, ever since 2014.

Founded in 2014


– Awarded EASA Design Organization Approval (DOA)
– Initiation of KNSI UK & SL Offices


– Awarded EASA Production Organization Approval (POA)


– Awarded EASA Part 145 Approval

2017 – 2019

– Expanded Design, Production & Maintenance Capabilities


– Awarded UK CAA Design Organization Approval
(DOA), Production Organization Approval (POA) & Part 145 Approval
– Initiation of KNSI Ireland Office


– Awarded (Post Brexit) EASA Design Organization Approval (DOA) for KNSI
Ireland Office