After graduating from Wilfrid Laurier University in 1982, John Petrosino was a branch manager for a major Canadian bank. Based on his work there, he became interested in helping people achieve their financial goals. In 1984, he left banking to pursue a lifelong career in the wealth management industry.
Now with more than 40 years’ experience in the wealth management industry, John’s extensive knowledge and experience allows him to confidently provide proven retirement, estate and tax planning solutions for a wide variety of financial situations.
As an expert, he is able to take complex financial issues and make them easily understood. His conservative approach and dedication to his clients makes him a leader in his field, and he has been privileged to help many of his clients achieve their financial planning goals.
John takes his role seriously and, in order to provide more insight and awareness to his clients, he stays up to date by regularly attending conferences as well as frequent meetings with experts from around the globe.
Since one cannot be all things to all people, and to ensure every detail has been covered, John has developed an extensive network of financial specialists including lawyers and accountants. From insurance to tax and estate planning, he ensures every ‘t’ is crossed and ‘i’ is dotted and that means great peace of mind for you – no matter what the future brings.
He resides in Conestogo with his wife Suzy and their three children. An active volunteer with minor sports, the Optimist Club and his church, John helps organize charity events as well as special activities for under-privileged children in his community.
Your partner in personalized, full-service wealth management
Your ally in the pursuit of financial freedom
We go beyond managing money—we focus on optimizing your financial journey by fusing technology, modern strategies, and core values like integrity, transparency, and balance. We provide honest, personalized advice and a proactive, high-touch experience.
Meet the team


John Petrosino
Wealth Planner
- Email: john.petrosino@optimize.ca
- Phone: (519) 496-4606


Adam Newsome, CIM
Portfolio Manager
- Email: adam.newsome@optimize.ca
- Phone: 437-253-1534


Stuart Hinshelwood, CIM®
Associate Portfolio Manager
- Email: stuart.hinshelwood@optimize.ca
- Phone: (416) 964-5297
Team values

Client-First Approach
The Petrosino Group prioritizes exceptional, personalized service, treating every client as an individual with unique goals and needs. By focusing on building trust and fostering meaningful relationships, they ensure each client feels valued and supported. Their client-first philosophy drives every decision, ensuring strategies are tailored to achieve meaningful outcomes and long-term financial success.
Integrity as a Guiding Principle
Honesty, transparency, and ethical practices are the foundation of The Petrosino Group. The team is committed to providing clear, unbiased advice and open communication at every step of the financial planning process. By consistently putting the client’s best interests at the forefront, they create a trusted partnership that inspires confidence and builds lasting relationships.

Our dedication to excellence is
reflected in every aspect of our work
Clients can expect a proactive, high-touch experience designed to simplify and enhance their financial lives. At 4 Pillars Wealth, we believe in consistently going above and beyond to deliver exceptional service and build lasting relationships. This means not only addressing clients' current needs but also anticipating future challenges and opportunities, helping them feel confident and prepared for what lies ahead.

Empowering Clients Through Knowledge
At The Petrosino Group, staying informed and knowledgeable is a top priority. The team continually tracks industry trends to provide expert guidance that reflects the latest developments. By offering up-to-date strategies and empowering clients through education, they ensure every decision is well-informed. This commitment to education fosters confidence and helps clients achieve their financial goals with clarity and assurance.
Timeline
Supporting our community

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