Katherine Trewin
Katherine (Kat Trewin) Trewin is a seasoned professional in the commercial insurance industry, currently serving as the Commercial Lines Training and Development Manager at Swingle Collins & Associates in the Dallas-Fort Worth Metroplex. In this role, she leads onboarding for new hires, develops commercial workflows and training videos, and oversees the agency’s path-to-promotion initiatives for account managers and assistant account managers. Known for her calm, approachable leadership style, Katherine prioritizes mentoring colleagues, ensuring they have the tools, guidance, and support to excel in their roles.
Katherine’s career spans nearly three decades in the insurance sector, beginning in personal lines before moving into commercial lines early on for greater challenge and professional growth. She spent 16 years as a commercial account executive in general aviation insurance, gaining experience in sales, customer service, cold calling, and client relationship management. Over the years, she has developed a reputation for excellence in client retention, workflow management, and team training, consistently bringing expertise and dedication to every aspect of her work.
A graduate of Southwest Texas State University with a Bachelor of Fine Arts, Katherine initially pursued a career in the arts before discovering her passion for insurance. Her professional philosophy emphasizes mentorship, practical onboarding, and fostering psychological safety, empowering her colleagues to do their best work. Recognized as one of Texas’s Influential Women for 2026, Katherine continues to leave a lasting impact on the industry by combining technical expertise with thoughtful leadership and a commitment to helping others succeed.
• Southwest Texas State University- B.F.A.
• Paris Jr. College- Associate's
• Tarrant County Insurance Professionals
• After the Cancer Experience (ACE) program at UT Southwestern Dallas for childhood cancer survivors
• DFW Pug Rescue
What do you attribute your success to?
I would say being genuine, honest, and being upfront with my insurance clients in a professional way. It's about having those honest conversations, like when I have to tell someone they're getting a 20% increase this year, but really being able to break it down and explain why, versus just saying 'too bad, so sad.' It's about gaining that trust through transparency and professionalism.
What’s the best career advice you’ve ever received?
Be smarter than the problem. Take a look at what the issue is, give it a minute, analyze it, and figure out the best solution before arriving to a concluded answer.
What advice would you give to young women entering your industry?
Lead by example, stay humble, and always strive to demonstrate professionalism in everything you do.
What are the biggest challenges or opportunities in your field right now?
The biggest challenges in my field right now include shifts in the commercial and general aviation insurance market, where carriers are increasingly moving to quota-share arrangements instead of writing large aircraft 100%. At the same time, there’s an ongoing opportunity to strengthen agency culture while balancing work, home life, and complex interpersonal dynamics.
What values are most important to you in your work and personal life?
The values most important to me are genuineness, honesty, humility, and leading by example, both in my work and personal life. I also enjoy enriching experiences like travel and wine tasting that broaden my perspective.