Protecting Families & Businesses in Greenville Since 1969
We are an independent agency built on trust, experience, and a genuine commitment to our community. Here is our story.
Built on Relationships, Not Transactions
Hamilton Insurance Agency, Inc. was founded in 1969 by J.B. Hamilton with a simple belief: insurance should be about people, not paperwork. Starting with a small office on Louisa Avenue in Greenville, Pennsylvania, J.B. set out to create an agency where clients felt heard, respected, and truly protected.
Over the decades, we have grown from a one-person operation into a full-service independent agency now led by the second generation, serving individuals, families, and businesses throughout Mercer County and across the state. Yet our core philosophy has never changed. We still answer the phone personally. We still visit businesses on-site. We still treat every client like a neighbor, because they are.
As an independent agency, we are not tied to any single insurance company. That means we can shop multiple carriers on your behalf, compare coverage options side by side, and recommend the solution that actually fits your life, your budget, and your goals, not the one that benefits a corporate bottom line.
Milestones That Define Us
Hamilton Insurance Agency, Inc. was founded by J.B. Hamilton in Greenville, PA.
Expanded office space and staff to meet growing community demand.
Transitioned to a second-generation family agency under Mark Hamilton.
Opened a dedicated group health and employee benefits department for local businesses.
Launched digital services so clients can manage policies online or by phone.
Celebrated over 55 years of protecting families and businesses across Pennsylvania.
Our Core Values
GIVE PURPOSE to Our Team
Purpose creates meaning. We strive to offer a sense of direction and help guide our paths, behaviors, and goals by staying true to our core values.
Put FAMILY First
Have harmony in work/life balance.
Provide SECURITY
Give Financial Security for our team by acting as good stewards of this business. Faithful providers for our family. Deliver Peace of Mind to our clients.
Have INTEGRITY
Be Consistent. Be Thorough. Be Honest. Be Kind.
Deliver Good COMMUNICATION
Give Clear direction. Promote team synergy. Everyone has a voice. Foster new ideas.
Stay DRIVEN
Pursue competition over complacency. Maximize our efforts. Keep Innovating. Keep Moving Forward.
The People Behind the Policies
Our licensed team combines decades of experience with a genuine commitment to your peace of mind.
Mark Hamilton
Owner & Principal Agent
Carrying on the legacy his father J.B. Hamilton started in 1969, Mark brings over 25 years of insurance expertise to the agency. He holds licenses in property, casualty, life, and health insurance, and remains deeply committed to the community his family has served for over five decades.
Sarah Jennings
Senior Account Manager
Sarah has been with Hamilton Insurance for 12 years, specializing in commercial and business insurance packages. Her attention to detail ensures every policy fits the client's exact needs.
David Chen
Benefits Specialist
David leads our employee benefits department, helping local businesses design competitive health, dental, and vision packages. He is passionate about making insurance accessible to everyone.
Linda Rodriguez
Personal Lines Advisor
Linda helps families protect what matters most. From auto to home to life insurance, she takes the time to explain every option so clients can make informed decisions with confidence.
Rooted in Greenville, Serving All of Pennsylvania
Our office is located in the heart of Greenville, but our reach extends throughout Mercer County and across the entire state of Pennsylvania. Whether you are a homeowner in Grove City, a business owner in Sharon, or a farmer in West Middlesex, we are here to help.
Ready to Work With a Team That Puts You First?
Whether you are looking for your first policy or reviewing your current coverage, we are here to make the process simple, clear, and stress-free.