Who We Are

St. Clair Insurance is a part of the Insurance Store family. We’re a vibrant modern company offering a wide variety of personal and business insurance products from Canada’s leading companies. Our diverse team of expert professionals has experience that spans several generations, and is available to advise you by phone, online or in person at our locations in Windsor, Chatham and London.

Pride in our past

Since 1891, St. Clair Insurance Brokers has taken care of our customers in Southwestern Ontario. We are firmly rooted in the communities we serve, with strong long term customer relationships. Our heritage traces back to three prominent insurance brokers in South Western Ontario; Alliance, Ambassador and Grant & Mingay. We’re proud that today, more than half of our diverse team of insurance professionals came from one of these highly respected companies and chose to continue the exciting journey with us.


Known in Windsor for providing superior protection at fair prices, Ambassador Assurance Brokers Inc. celebrated their 100 years of insurance service in 1991 by promising to continue the tradition for the next 100 years. Today our culture of customer service and strong relationships is based on this.

Grant & Mingay

Founded in 1959 by Ross Mingay and William Grant, this company grew over three generations to become a well known and highly respected Windsor brokerage. Today, St Clair benefits from the network of strong local connections and a culture of integrity and honesty.

Alliance Windsor Insurance Brokers Inc.

Alliance Windsor

Alliance Windsor was founded by three entrepreneurial brokers in 1987, who took the opportunity to create their own identity. The company was known for its deep relationships and culture of going the extra mile. Today, St Clair is building on this with enhanced products and solutions for our customers.

Excitement about the future

We employ a growing team of passionate insurance professionals and work in an open, paperless, collaborative environment that fosters a culture of innovation and great service. We’re available to our customers online, by phone or in person and provide efficient seamless service using our cloud based systems.


Get a Quote Today!

or Call Us at 1-866-308-9307

St. Clair Insurance Brokers Inc.