From business to airlines to special missions and rotary wing aircraft types, at ADS, we understand your aircraft inside and out at the component level. With In-depth knowledge of avionics systems, structures and interiors, and enduring relationships with certification authorities around the world, we’ve seen the innermost workings of more aircraft flight decks and cabins than we can count.

Our internationally renowned partner network makes it easier for us to help you obtain the certifications you need to maintain your aircraft’s airworthiness.

From flight decks to cabin interiors, to highly-specialized applications, we have the experience and know-how to help you achieve your aircraft modernization goals.

We have developed STCs for aircraft just like yours from around the world.

Here’s how we can help you:


For more than 25 years, we’ve helped airline operators modify and update their fleets. We have the experience and know-how to add new life to your aircraft.

Regional Airlines

At ADS we are innovators and problem solvers. We can help you cost-effectively obtain the certification that meets your needs. Put our 25+ years of experience to work for you.


With more than 1600 SSTCs and STCs in our database—not including rotary-wing approvals—we are Canada’s business aviation certification experts. Put our 25+ years of expertise to work for you.

Rotary Wing

The versatility of helicopters is matched only by the range of interesting and creative modifications we’ve seen. At ADS, we appreciate creativity and we love a challenge.

Special Missions

Whether your mission is Air Ambulance, Wildfire Attack, Intelligence, Surveillance and Reconnaissance (ISR), Navaids Flight Inspection or Electronic News Gathering, ADS has a solution for you.

Avionics Manufacturers

The world’s most respected avionics manufacturers rely on our team’s extensive knowledge and expertise to test and certify their products. We work with OEMs from around the globe, and certify with aviation authorities like TCCA, FAA, EASA and others. We are Canada’s certification experts.