Caleron provides executive consultancy to aviation organisations across the defence and commercial sectors — spanning operations, programme governance and business leadership.
Founded by Kieran 'Ronnie' Trasler: over 30 years in aerospace, UK CAA Part 145 / Part 21G Nominated Person, Chartered Director and former RAF senior officer.
From MOD capability strategy to directing complex regulated programmes, Ronnie brings the range to operate effectively at board level and on the ground — building governance frameworks, leading multi-disciplinary teams and delivering in high-assurance environments.
Nominated Person for both Part 21G and Part 145 component maintenance — credentials built from scratch, not inherited. Ronnie has established compliant facilities, quality systems and teams and maintained audit readiness at pace with commercial delivery.
Full P&L accountability for a £20m business, delivering multiple X revenue and profit growth through contract execution discipline, active risk management and major bid negotiations across government and industry clients.



https://www.linkedin.com/in/kieran-trasler/
Copyright © 2026 Caleron Ltd - All Rights Reserved.