Texas Partners Bank to merge with Prosperity Bank

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Answering your questions about our upcoming transition

Texas Partners Bank is merging with Prosperity Bank, combining our local expertise with a larger network to better serve communities throughout Texas. We have created this guide to support our clients and answer questions about the transition.

 

What this partnership means for you

  • No immediate changes: It is business as usual. You can continue to use your accounts, debit cards and online banking services as you do today.
  • Timeline: The merger is expected to be complete in the first quarter of 2026, pending regulatory and Southwest Bancshares shareholder approvals.
  • Expanded convenience: After operational conversion, you will have access to an extensive network of over 283 banking locations and more ATMs across Texas and Oklahoma.
  • Continuity of service: The bankers you know and trust will continue to serve you from our current locations.
  • A secure future: We are joining a strong, Texas-based institution, ensuring a stable and innovative banking partner for years to come.
  • Clear communication: We are committed to keeping you informed and will provide advance notice of any changes.

Frequently Asked Questions

Southwest Bancshares, Inc., the parent company of Texas Partners Bank, has entered into an agreement to merge with Prosperity Bancshares, Inc.®, parent of Prosperity Bank. Immediately thereafter, Texas Partners Bank will merge into Prosperity Bank.
 
This partnership allows us to provide you with the benefits of a larger banking network and more services, while maintaining the local service you expect.
 
As of September 30, 2025, Prosperity Bank operates 283 full-service banking locations. This network includes 65 locations in the Houston area, 30 in the South Texas area, 76 in the Dallas-Fort Worth area, 22 in the East Texas area, 35 in the Central Texas area, 44 in the West Texas area, and 11 in Oklahoma.
The merger is expected to close in the first quarter of 2026, subject to customary closing conditions, including approval from banking regulators and the shareholders of Southwest Bancshares, Inc.
No action is needed from you. Your account and routing numbers, debit cards and online access will remain the same until after the merger is complete and systems are converted.
Yes. Your deposits will continue to be insured by the FDIC up to the maximum allowable limits.
 
For comprehensive details, please refer to Your Insured Deposits on FDIC.gov. 
Once the merger is complete, you will gain access to more banking locations and ATMs as well as an expanded range of products and services.
Yes, please continue to make payments per the terms of your loan agreement. The account number and mailing address for payments have not changed.
We are dedicated to preserving the strong client relationships that define our bank. You’ll continue working with the same trusted bankers who understand your financial needs.
No. Loan applications will not be delayed as a result of this announcement, and you do not need to take any additional steps at this time.

Next Steps and Communications

How will I be kept informed about the merger?
We will send you information directly as we move closer to the merger date. Please ensure your contact information on file is current. If you have any questions, please contact your relationship manager or visit your local financial center. 

 

Disclaimer: The completion of the merger is subject to certain conditions, including the receipt of all necessary regulatory approvals and the approval of the shareholders of Southwest Bancshares, Inc. The transaction is expected to close in the first quarter of 2026, but the exact timing cannot be guaranteed.