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Bringing half a century of experience to serve the insurance needs of families and businesses locally and beyond.


Years in Business Since 1973


Experienced Insurance Professionals


States We Proudly Serve

Over 50 years of history.

Walter Mark Agency Inc. has a storied history that goes back to our founding in 1973. Walter Mark, who had joined Erie Insurance in 1957, carried on that relationship to form a family-owned and operated agency that is still here today and is stronger than ever. Now owned by Walter’s son, Eric Mark, along with his sister, Lisa Mark Cerenzia, the two bring over 50 years of insurance experience to the table. Our team continues to work from our local office—a colonial-style house built in 1857, a symbol of where we’ve been and our stability moving forward.

Dedicated to service with a personal touch.

As a local, independent insurance agency, Walter Mark Agency Inc. has continued our tradition of putting the service of others first, treating others as we would want to be treated. The Golden Rule has been a guiding principle of ours from the start, and it’s something that shows in how we interact with each of our clients. We take every opportunity to thank our current clients for entrusting us with serving their insurance needs, and we look forward to helping you with yours next.

Expanding our horizon.

In 2023, we merged with Colaizzo Thompson Insurance Associates—an agency that has been providing insurance solutions for over 30 years. With our combined insight, knowledge, and experience in the insurance landscape, we strive to carry on the legacy of both agencies as we move into the future as one.

Walter Mark Agency Inc. is centrally located in Canonsburg, PA, and we are proud to serve families and businesses in Pittsburgh, PA, Southwestern Pennsylvania, and across five states with the same local service with a personal touch.

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Walter Mark Agency Inc.

239 W Pike Street
Canonsburg, PA 15317

Email Us
 724-745-7498 fax

Our Mission

At Walter Mark Agency Inc., our family-owned business has been focused on serving the insurance needs of local families and businesses for over 50 years—we look forward to over 50 more years of service and beyond.

Personalized Solutions

Get the power of choice with insurance that’s designed for your unique needs.

Knowledgeable Service

We’ll be there for you with reliable service and support to help you make informed decisions.

Trusted Relationships

You can rely on us to simplify the insurance process and advise you on your insurance.

Experience Where It Counts

Our team brings over 50 years of combined insurance experience to help with your insurance needs.

Meet Our Team

Insurance Designed for Your Needs



Proud Partnerships

We’re proud partners of Erie Insurance since the 1950s, and we are also a member of IA&B, which empowers us to better serve your needs.

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  2. Step 2Review your options with us.
  3. Step 3Get the coverage you need.

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