SIB expands its presence in Ontario with the acquisitions of Marathon Insurance Group, Ron Johnston Insurance, Buckler Insurance Service, and K.O. Bartholomew & Son Insurance Brokers
ANCASTER, ON, JULY 2, 2025/insPRESS/ – SIB Corp. is pleased to announce the acquisition of four long-standing Ontario brokerages: SSY Marathon Insurance Brokers Inc., K.O. Bartholomew & Son Inc., Ron Johnston Insurance Ltd., and Buckler Insurance Service Ltd (the “Marathon Insurance Group of Companies”).
Operating out of offices in Richmond Hill and Orillia, Ontario, these brokerages have proudly served their communities for over 30 years, providing comprehensive personal and commercial insurance solutions. The businesses will continue to operate under their existing brands post-acquisition, with founders John and Angie Moulatsiotis to remain in leadership roles throughout a gradual transition period.
“We are incredibly proud of the relationships we’ve built and the trust we’ve earned over the last 3 decades,” said John and Angie Moulatsiotis. “Partnering with SIB allows us to maintain the same personalized service our clients expect while benefiting from the strength, scale, and innovation of a national platform. Just as important, we felt an immediate cultural fit with SIB — their entrepreneurial mindset, commitment to people, and community-first approach closely reflect our own values. We’re excited about this next chapter and look forward to continuing to grow alongside the SIB team.”
This acquisition marks a continued strategic expansion for SIB, which is focused on identifying entrepreneurial brokerages that align with its culture and vision. The addition of the Marathon Insurance Group of Companies strengthens SIB’s presence in key Ontario markets and supports its long-term goal of delivering best-in-class service to communities across the country.
“We are thrilled to welcome John, Angie, and their entire team to the SIB family,” said Ted Puccini, President and CEO of SIB. “They have built trusted, community-focused brokerages over the past 30 years, and their dedication to clients and staff aligns perfectly with our values. This acquisition strengthens our reach in Ontario and enhances our ability to serve more Canadians with local expertise backed by national support.”
About SIB
SIB is a best-in-class insurance brokerage and with this partnership, SIB now operates out of over 140 offices across Canada. With over $1 billion in GWP, SIB’s continued growth and expansion has allowed the company to provide the communities and businesses it serves with expertise in personal, commercial, and benefits insurance solutions.
SIB has completed 2 acquisitions and launched 2 joint venture offices in 2025, and SIB is actively seeking additional acquisition, partnership and affiliate brokerage opportunities in Canada.
For more information on SIB’s partnership and investment approach, please visit www.stoneridgeinsurance.ca/partnerplatform or call Mitch Grossman at (416) 816-8515.
