About Us
The San Antonio office of Alera Group builds on a long tradition of service rooted in Trimble‑Batjer’s history as one of Texas’s oldest insurance and bonding firms. With origins dating back to 1883, the organization has earned clients' trust by delivering consistent, relationship‑focused service and practical guidance through decades of change.
Today, the San Antonio team operates as part of Alera Group, providing clients with access to a broader platform of insurance and risk management resources while maintaining a strong local presence.
Core solutions include:
- Property & Casualty
- Surety and Bonds
- Personal Lines (home & auto)
- Risk and Claims Management
As Alera Group, the San Antonio office continues to deliver the personalized service clients expect while operating within a collaborative organization designed to support long‑term success. The focus remains on helping clients move forward with confidence, knowing their insurance and bonding needs are managed by experienced advisors committed to building lasting partnerships.
Key verticals: We serve clients across a variety of industries, but have experts who specialize in
- Construction
- Oil and Gas
- Farm and Ranch
- Manufacturing
- Nonprofits
Licensed in more than 30 states, the firm supports clients whose operations extend beyond Texas, offering insight into regulatory and labor considerations across multiple jurisdictions.
Meet Our Team
Donna Whittenburg
Marketing and Operations Manager
Donna brings nearly four decades of experience in the insurance industry, specializing in commercial lines marketing and operational support. She partners closely with producers and service teams to strengthen new business efforts, streamline renewals, and support strategic marketing initiatives, drawing on a career spent mastering nearly every role within an agency.
She is known for her deep industry knowledge, her commitment to professional development, and her leadership within AppliedNet, where she has served as a State Chapter President, Alliance Leader, and member of the Education Committee. Donna attended Angelo State University.
Outside the office, she enjoys traveling, attending musicals and plays, and cheering on her favorite football teams. Family time is especially important to her, and she loves traveling with her daughter and cooking Sunday dinners for her son.
Resources
EXPERT EDUCATION
Events and Webinars
Employee Benefits
Network Performance Strategy: Why Any Provider Costs More — and How to Steer to Value Without Disruption
A steering strategy that improves outcomes and total cost of care.
April 21, 2026 at 01:00 pm CT | Virtual
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Employee Benefits
The Compliance Pathway Q2
Alera Group's quarterly employee benefits compliance roundup will help you stay current on the latest national regulatory developments impacting employers.
May 14, 2026 at 01:00 pm CT | Virtual
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Employee Benefits
PBM Accountability: Why Employers Overpay — and How to Enforce Transparency
A PBM oversight model with accountability built in.
May 19, 2026 at 01:00 pm CT | Virtual
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THOUGHT LEADERSHIP
Insights
Property and Casualty
AI Isn’t Liable for the Mistake. You Are.
Artificial intelligence is powerful. It’s also wrong more often than people want to admit.
If you use AI to support or deliver professional services, any mistake it makes is still your responsibility. Not the software’s. Not the vendor’s. Yours.
April 1, 2026
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Property and Casualty
Identity hijacking is surging. Here’s what leaders need to know.
Cyber incidents across our client base have been sharper, faster and more costly this year. Even organizations with strong controls are being hit in ways that look very different from past attacks.
March 13, 2026
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Legal Alert: RxDC Reporting Due June 1st
Reminder: RxDC Reporting Due June 1st
February 26, 2026
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Property and Casualty
AI-Powered Cyber Attacks, Why Yesterday’s Defenses Aren’t Enough.
The widespread availability of AI technology, combined with the ease of manipulating video calls, makes phone and Zoom calls susceptible to exploitation by threat actors.
February 2, 2026
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