Our engineering and certification expertise are second to none. The ADS team has an in-depth understanding of Supplemental Type Certificates (STC), Repair Design Approvals (RDA), and Technical Standard Orders (TSO). We have years of experience ensuring compliance with TCCA, FAA, EASA and other aviation authority regulations to help get you where you need to be. Owners and operators of all kinds commercial (airlines and regional airlines), business, special missions, and rotary wing trust us for effective certification and engineering services. Avionics manufacturers of all types rely on our expertise. We offer a wide range of services and over the past 25 years, we’ve practically seen it all.

Problem Solving

This is what you hired us for. We’re problem solvers. It’s what we do. And no problem is too big or too small.


We are Canada’s leading aviation certification experts. We handle a huge spectrum of aircraft systems and structures—from STCs and other approvals to repairs and software.

Environmental Qualification Testing

You’ve worked hard to create your new product, and maybe even harder to update your old one. You need thoughtful, knowledgeable expertise to ensure your product is ready to command your target market.

Import & Export

Importing an aircraft from or to another jurisdiction can be a minefield. We’ve got the skills and experience to make sure your aircraft is import- or export-ready.

Engineering Offload

Juggling too many engineering projects? Not making the headway you’d like? We can step in on demand with expert engineering to help you dig yourself out of that hole.

Customer Support

Supporting you is our top priority. Tell us where and when you need us, and we’ll be there. We can support you by phone and email, but our strength is supporting you onsite.