Profile
Sean Johnson helped take an insurance product from nothing to more than US$100 million in gross written premium in under five years. It is the achievement he is proudest of, and it captures how he has approached his first decade in the business: spotting an underserved corner of the casualty market and moving quickly to claim it. As an Executive Vice President at RT Specialty, he has turned a right-place, right-time start into a deliberate strategy.
“I knew quickly what sort of opportunity was in front of me,” he says. Johnson recognized the opening in the casualty space and built on it before the field caught up, and the speed he showed then still drives how he works today.
For Johnson, his strongest quality is simply that he does not stop. “Hard market, soft market, and challenging situations or placements – I have a persistent ‘always on’ attitude about what I do as a broker.” This mindset extends to how he handles the work itself, which he describes as a persistent pursuit of perfection, tempered by the knowledge that no two placements are alike and that each carries its own merit.
600 Brickell Avenue, Suite 2825, Miami, FL 33131
305 807 8612
sean.johnson@rtspecialty.com
linkedin.com/in/sean-johnson-00b46019
rtspecialty.com
Sean Johnson
Executive Vice President
RT Specialty – Miami
Read on
Special Report
Home
Bio
Milestones
2016–2020
2020 – Present
2022–2023
2023–2026
Present
Broker at All Risks
2016–2020
Executive Vice President, RT Specialty – Miami (RT Specialty acquired All Risks in September 2020)
2020 – Present
Vice President, Retail Excess Casualty at Arch Insurance North America
2022–2023
Vice President, Construction Excess and Practice Manager at Arch Insurance North America
2023–2026
Senior Vice President, Construction Excess at Arch Insurance North America
Present
Milestones
“I am humble enough to sit back and listen when I need to but confident enough to stand up and take control when necessary”
Sean Johnson,
RT Specialty
“Hard market, soft market, and challenging situations or placements – I have a persistent ‘always on’ attitude about what I do as a broker”
Sean Johnson,
RT Specialty
youtube.com/@summitpw
facebook.com/summitprivatewealth
instagram.com/summit.wealth
x.com/SummitPrivate
The biggest challenge he faces is the high hurdle of standing out as an industry-leading wholesale broker in a crowded field. “Top brokers are a valued asset in a transaction,” he says. Rather than sidestep skepticism, Johnson meets it directly, using proven expertise and product knowledge to control the narrative and place business properly. Honesty and directness with both carriers and retailers allow him to work quickly, which is what the role demands.
Balance is central to how he operates. “I am humble enough to sit back and listen when I need to but confident enough to stand up and take control when necessary,” Johnson says. Early in his career, that humility shaped a deliberate approach to learning. He sought out people with more knowledge, focusing on the industries he planned to tackle so he could build the relationships that success would later require. A mentor helped him understand the right and wrong ways of operating in the industry and how to adjust accordingly.
A decade in, IBA’s Rising Stars 2026 recognition has given Johnson a chance to take stock. He still competes directly against the established names in his space, and the honor has reassured him that he is doing the right things. For a broker whose defining trait is showing up every day, the recognition reads less as a finish line than as confirmation that he is on the right track.