Consultancy With A Difference The Aviation Consultants’ Executive Limited (ACE) is a unique organisation providing specialised services to participants in the aviation industry. Our focus is on delivering practical and independent advice, whilst working to the highest professional and industry standards, to provide sustained performance improvements for our clients. ACE has the capability to assist clients in technical, safety, operational, strategic and commercial areas. This capability is based on our practical aviation experience and expertise and the individual track record of our team and of our global network of leading industry professionals and organisations.