Why Diyarco Engineering Inc.

Founded in 2010, Diyarco Engineering Inc. delivers a host of high-quality, cost-effective mechanical engineering solutions to multiple industrial sectors.

Based in Richmond Hill, Ontario, we employ a respected team of experts who, combined, lend decades of field experience and technical proficiency to each and every project we undertake.

Looking for big results? Look to Diyarco. Small enough to be nimble yet large enough to handle the most challenging design project with efficiency and ease, we can be counted on to deliver solutions of the highest engineering value – solutions that embody a degree of quality you’ll be proud to associate yourself with for years to come.

Your projects are the essence of your business. They’re the essence of our business, too. Count on us to be effective, responsive and accountable every step of the way, because if there’s one thing we want more than your next project, it’s the one after that!

To discuss an upcoming project, contact us today.


Founded by Saman Sajjadi, B.Sc., C.E.T., P.Eng.

When you partner with Diyarco Engineering Inc., rest assured you’ll be in good hands, including those of licensed professional engineer and certified engineering technologist Saman Sajjadi who has more than 18 years of Canadian and international experience.

Preceding the launch of Diyarco, Saman worked as a senior piping designer, site support engineer and project manager for a number of Canadian consulting engineering firms, including Tetra Tech, MAN Diesel & Turbo Canada, QUAD Engineering and Macro Engineering & Technology, undertaking a key role as principal mechanical and piping designer for larger projects.

He also acted as the main piping design engineer and site support engineer for a Rolling Mills project in Ontario, overseeing all project steps from the study phase through to commissioning. Furthermore, he gained valuable engineering experience as a design engineer for various power plants and mining projects across Canada.

Saman obtained his Bachelor of Mechanical Engineering with a specialty in fluid and thermodynamics from Tabriz university, Iran, and his Mechanical Design Advanced Diploma from George Brown College in Toronto, Canada.

Saman is an active member of Professional Engineers Ontario (PEO). When he’s not busy assisting his clients, he enjoys volunteering with PEO and staying active by swimming and playing table tennis.