About Us

CST Arwin logo

CST-Arwin was formed with a vision to provide the dynamic and growing electronics marketplace in Canada with quality products from a select group of component manufacturers. CST-Arwin was started in 1992 as a small regional rep firm called CMI serving the Montreal, Toronto, and Ottawa marketplaces. In the late 1990s CMI merged with Southall Thomas Inc., another small regional rep firm serving the same markets. One year later, they all merged with Arwin Technical Sales, based solely in Western Canada and became CST-Arwin Inc. The new company provides cross-Canada coverage with offices in the primary cities in Canada. Their focus is a passive electro-mechanical product with an emphasis on excellent customer service and technical support.

We have representatives to help you in our 3 offices: Central Canada (Toronto Region), Eastern Canada (Montreal/Ottawa/East Region), and Western Canada (B.C./Alberta/Prairies Region).

Visit the Contact Us page for the addresses.


Ross Forbes - CST-Arwin President

Ross Forbes

Ross Forbes is the president and is responsible for Quebec and the Maritimes. Ross has over 30 years of experience in the electronics industry and 25 years of experience with CST-Arwin in this territory. He has gained his experience working for distribution and manufacturers representatives. Ross’ responsibilities include primary contact with principals, enhance and assist the distribution network and major account coverage in the territory.
Rob web

Robert DeRose

Robert DeRose is the Vice president. Rob has 20 years of experience in the electronics industry and 21 years with the CST-Arwin team. Rob’s former positions include major account responsibility for Phoenix contact connectors and terminal blocks and Canadian Distribution sales manager for ebm/papst fans and blowers. Rob has an extensive network of account and distribution contacts throughout Toronto.

Central Canada

Carolann Vlastaris web

Carolann Vlastaris

Carolann Vlastaris joined CST Arwin in March 2020. She comes to CST Arwin with over 27 years of industry experience she has gained while working at Newark Electronics. She started as an Inside Salesperson, then Inside Sales Manager and most recently 3 years as Outside Account Manger. She managed the GTA territory to sales success and growth in the marketplace. Carolann holds a Business Administration degree from Brock University.

Eastern Canada

Diane Decelles web

Diane Decelles

Diane Decelles has over 22 years of experience working at a manufacturer's representative as an inside sales/ customer service representative. Diane’s experience has been with supporting direct sales, indirect sales, and distribution account management. Her past sales support has been within the electronics component sphere supporting customers in telecom, networking, test and measurement, industrial and power markets across Canada.

Western Canada

Don web

Don English

Don English is the manager of Western Canada. The majority of his professional career has been devoted to the manufacturer’s representative role. Don started in the electronics industry in 1981. In 2001, Don joined the CST-Arwin team and since then, Don has been responsible for the maintenance and growth of his account base in Western Canada as well as their associated contract manufacturers.

Unsure of where to go?

Contact us today to allow us to find you the right manufacturer.