St. Louis, MO (June 23, 2026) — RapidFire Safety & Security (RapidFire) today announced it has acquired Pro-Alarm LLC (Pro-Alarm), expanding RapidFire’s Southern Illinois and Greater St. Louis footprint and reinforcing their commitment to delivering a high-quality customer experience across the region.

Based in Marine, Illinois, Pro-Alarm is a full-service alarm company with over four decades of industry experience. The company specializes in the installation, service, and monitoring of security alarms, fire alarms, video surveillance, and access control solutions for commercial and government customers.

Since 1984, Pro-Alarm has built its reputation on delivering quality work supported by a “service what we sell” philosophy and a commitment to responsive customer care. Pro-Alarm is licensed in the State of Illinois and holds St. Louis County Communications Contractor and Alarm Licenses, reinforcing its strong presence and credibility across the region.

Pro-Alarm will continue to operate with its existing team, now backed by RapidFire’s expanded resources, systems, and infrastructure. The acquisition supports RapidFire’s ongoing strategy of partnering with established, customer-focused providers in key markets to expand its capabilities and deliver a high-quality, consistent customer experience across its growing footprint.

“We are pleased to welcome Pro-Alarm, its employees, and its customers to RapidFire,” said Brian Modglin, Chief Operating Officer of RapidFire Safety & Security. “Don & Terri have built a respected business defined by strong customer relationships, technical expertise, and a long-standing commitment to service. This partnership strengthens our position in the greater St. Louis market and expands our ability to serve customers across Illinois and Missouri with additional resources and capabilities.”

“The addition of Pro-Alarm reflects our continued focus on expanding and strengthening our service offerings in key markets,” said Bob Ricucci, Chief Revenue Officer of RapidFire Safety & Security. “Their experienced team and established customer base further enhance our ability to deliver value to clients across the region.”

"When thinking about the future for our employees and customers, my #1 goal was a continuation of the high quality sales, service, and momentum. We did not want to just let the company we built over the last 42 years servicing our family, friends and neighbors go to a recurring monthly revenue only buyer," said Don Satterlee, Owner of Pro-Alarm. "The fit with RapidFire Safety & Security made sense looking to the future for our clients and employees. The continuation will be there along with the added benefit of a larger company and upward momentum for our employees, plus access to more industry products for our clients was also appealing. I see possibilities in the future of a larger footprint as we continue to put our promise of quality sales and service first.”

Buchanan, Ingersoll & Rooney served as legal counsel for the transaction.

About Pro-Alarm
Founded in 1984, Pro-Alarm has built a strong reputation throughout Illinois and Missouri by consistently delivering dependable service and practical, cost-effective solutions tailored to each customer’s needs.

With decades of experience in the alarm and low-voltage industry, the company has established long-standing relationships grounded in trust, responsiveness, and a commitment to doing the job right.

About RapidFire Safety & Security
RapidFire Safety & Security provides commercial fire protection, life safety, and electronic security services across the Midwest, Southwest, and Western United States. The company is led by founder Mike McLeod and co-founder Colin Harrold and is backed by Concentric Equity Partners.

RapidFire partners with entrepreneurs and business owners in the fire, life safety, and security industries who want to extend their legacy with people-focused leadership and additional resources to support growth.

About Concentric Equity Partners
Concentric Equity Partners is a private investment firm that provides capital and strategic support to middle-market companies to accelerate long-term value creation.

Concentric supports entrepreneurs and operators with resources designed to achieve exceptional results. Concentric is the direct investing arm of Financial Investments Corporation, a private asset management firm and family office.