Jon Determan
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Jon Determan Email & Phone Number

Senior Vice President, Specialty Underwriting | Risk Assessment / Compliance / Financial & Data Analysis / Sales & Business Development at Great West Casualty Company
Location: Sioux City, Iowa, United States 3 work roles 1 school
1 work email found @gwccnet.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 86%

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Work email j****@gwccnet.com
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Current company
Role
Senior Vice President, Specialty Underwriting | Risk Assessment / Compliance / Financial & Data Analysis / Sales & Business Development
Location
Sioux City, Iowa, United States
Company size

Who is Jon Determan? Overview

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Quick answer

Jon Determan is listed as Senior Vice President, Specialty Underwriting | Risk Assessment / Compliance / Financial & Data Analysis / Sales & Business Development at Great West Casualty Company, a company with 664 employees, based in Sioux City, Iowa, United States. AeroLeads shows a work email signal at gwccnet.com and a matched LinkedIn profile for Jon Determan.

Jon Determan previously worked as Senior Vice President, Specialty Underwriting at Great West Casualty Company and Vice President, Workers' Compensation Underwriting at Great West Casualty Company. Jon Determan holds Bachelor Of Science - Bs, Finance, General from Morningside College.

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Email format at Great West Casualty Company

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{first_initial}{last}@gwccnet.com
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Profile bio

About Jon Determan

Creating a cohesive team, developing strong agency relationships, finding customer solutions, and driving continual profitability are the things that I enjoy most about my work at Great West Casualty Company, which is one of the nation's leading truck insurance organizations.My knowledge in the insurance arena spans over several cross-functional teams and my career has progressed from my first job in claims processing to adjuster, underwriter, supervisor, vice president, and, now, senior VP.Some of my career highlights include: - I was selected as a leader of a workers’ compensation underwriting department at one of the nation’s top truck insurance carriers, delivering a significant profit with a lean direct-loss ratio for 10+ years.- I was named managing VP for three additional profitable companies—Old Republic Life (Occupational Accident), Old Republic Union (Contingent Casualty), and American Business & Mercantile Insurance Mutual (single unit and fleet owner-operator work comp)—and multiple business units for the parent organization, Old Republic.- I led the successful development and implementation of several workflow products, including a new commission structure designed to create additional streams of revenue for the organization. I have several designations and licensures, including:- Supervisory Management (SM) designation- Associate in Risk Management (ARM) designation- Producer’s License for Commercial and Personal Lines—State of IowaMy key competencies are:• Commercial Insurance• Credit Exposure• Mobility Insurance Solutions• General Liability • Product & System Development• Property & Casualty Insurance• Claims Processing & Adjusting• Risk Assessment & Management • Rate Development• Marketing Programs• Appetite & Pricing• Regulatory Compliance Outside of work, I can usually be found on a golf course with my family. I also enjoy researching golf equipment and fitting people to clubs and products to enhance their playing ability. I'm an avid runner always hoping for a PR while participating in half-marathons. I enjoy mountain and road biking, too. And when the fall and winter seasons roll around, we cheer on the Iowa State Cyclones by attending football and basketball games.

Current workplace

Jon Determan's current company

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Great West Casualty Company
Great West Casualty Company
Senior Vice President, Specialty Underwriting | Risk Assessment / Compliance / Financial & Data Analysis / Sales & Business Development
south sioux city, nebraska, united states
Website
Employees
664
AeroLeads page
3 roles

Jon Determan work experience

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Senior Vice President, Specialty Underwriting

Current

South Sioux City, Nebraska, United States

Dec 2023 - Present

Vice President, Workers' Compensation Underwriting

South Sioux City, Nebraska, United States

I motivate, mentor, coach, develop, and delegate managers of workers’ compensation underwriting, including eight direct reports and 15 indirect employees. ✓ I resolve employee issues and evaluate employee performance. ✓ I develop productive and profitable relationships with agents and insureds. ✓ I oversee the establishment of work methods and department.

Aug 2012 - Dec 2023

Underwriting Supervisor, Commercial Auto

South Sioux City, Nebraska, United States

I led a team of eight by training, mentoring, and coaching best practices to yield strong results. Developed underwriting products and presented at educational seminars, producers’ schools, customer meetings, and agents’ roundtables.

Apr 2007 - Aug 2012
Team & coworkers

Colleagues at Great West Casualty Company

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1 education record

Jon Determan education

FAQ

Frequently asked questions about Jon Determan

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What company does Jon Determan work for?

Jon Determan works for Great West Casualty Company.

What is Jon Determan's role at Great West Casualty Company?

Jon Determan is listed as Senior Vice President, Specialty Underwriting | Risk Assessment / Compliance / Financial & Data Analysis / Sales & Business Development at Great West Casualty Company.

What is Jon Determan's email address?

AeroLeads has found 1 work email signal at @gwccnet.com for Jon Determan at Great West Casualty Company.

Where is Jon Determan based?

Jon Determan is based in Sioux City, Iowa, United States while working with Great West Casualty Company.

What companies has Jon Determan worked for?

Jon Determan has worked for Great West Casualty Company.

Who are Jon Determan's colleagues at Great West Casualty Company?

Jon Determan's colleagues at Great West Casualty Company include Kirsten Loofe (Schaar), Shrm-Cp, Judy Barker, Barbara Dean, Ken Charles, and Byron Palsma.

How can I contact Jon Determan?

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What schools did Jon Determan attend?

Jon Determan holds Bachelor Of Science - Bs, Finance, General from Morningside College.

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