Lakeside Bank is Becoming Catalyst Bank

Catalyst Bank: Established in 1922


For more than 100 years, Catalyst Bank has been helping our communities grow stronger—one customer, one relationship, and one handshake at a time.

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We’re pleased to welcome you and look forward to building a strong banking relationship with you.

Beginning Saturday, November 7, 2026, your Lakeside Bank accounts and services will begin converting to Catalyst Bank. All updates will be effective Monday, November 9, when you’ll be able to access your new banking services and digital tools. Until then, continue banking with Lakeside Bank as you normally would.

Over the coming months, you’ll receive additional information from us by mail and email to help guide you through the transition. Please confirm that your mailing address, phone number, and email address are up to date. You can update your contact information with Lakeside Bank online, by phone, or in person.

For more details, please review the Frequently Asked Questions section below. We will update this section regularly, so be sure to check back for the latest information.

We look forward to serving you.


Important Items to Know


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Continue Banking with Confidence

Continue using your existing accounts, cards, checks, and other banking services, as well as your current branch locations and trusted local bankers.

Make Sure We Can Stay in Touch

Please confirm that your mailing address, phone number, and email address are up to date, so you can receive important updates and communications over the next few months. You can update your contact information online, in person, or by phone.

Stay Informed

We’ll share important updates in the months ahead. Be sure to check your mailbox and inbox and visit this site regularly for the latest news and information.


Frequently Asked Questions


1. What is happening with Lakeside Bank and Catalyst Bank?

Catalyst Bank is acquiring Lakeside Bank, which will merge into Catalyst Bank upon completion of the transaction. Through November 6, 2026, Lakeside Bank will continue operating under its current name as a division of Catalyst Bank. During this time, customer accounts and transactions will remain in Lakeside Bank systems until the conversion begins on November 7, 2026.

If you have questions about your account before the transition is complete, please contact the employees at Lakeside Bank. After November 9, 2026, all account information will be fully transitioned to Catalyst Bank systems. The same local team will continue serving you, now as Catalyst Bank.

2. What changes are taking place?

As part of the acquisition, we will convert from Lakeside Bank systems to Catalyst Bank digital platform and software. You can expect:

  • Contactless Debit Cards – making transactions quick, effortless, and secure!
  • Card Management – turn your card on and off, get instant alerts when your card is used, and set spending limits.
  • Enhanced Online + Mobile Banking experience – updated layouts and navigation features that give you the ability to take control of your finances on your own time.
  • And much more…
3. What does “conversion” mean, and when will it happen?

Conversion is the process of securely moving your account information and services from Lakeside Bank to Catalyst Bank. This process will begin on November 7, 2026, and will be completed when the new banking and digital systems are live on November 9, 2026. Please look for mailings and emails containing important information and any actions you may need to take.

4. If I have further questions, how do I contact you?

As we make this exciting transition, we want to meet your expectations every step of the way. Our team is here to help. Please visit one of your local branches with any questions.

Mobile App/Digital Banking FAQ


1. Where will I access and sign in to Online Banking?

Beginning November 9, Lakeside Bank’s systems will operate as Catalyst Bank. To access Online Banking from a computer or your mobile app, visit catalystbank.com.

2. Will I have to download a new mobile banking app after the transition to Catalyst Bank?

Yes. Beginning November 9, you can download the Catalyst Bank mobile banking app. Regardless of your device type, search for “Catalyst Bank” in your device’s app store to find and download the app. Once the new app is installed, you can delete the Lakeside Bank mobile banking app from your device. Login instructions will be sent to you before November 9.

3. What new Digital Banking features can I look forward to?

Beginning November 9, you’ll have access to enhanced Digital Banking features through Catalyst Bank, including:

  • View balances, statements, notices, and documents—all in one streamlined digital dashboard, whether online or on your phone.
  • Add your debit or credit card to your digital wallet for a quick, convenient way to pay without accessing your physical card.
  • Quickly and securely send money directly from your bank account to another person’s account by using just a phone number or email address using Person-to-Person (P2P) Banking.
  • Manage your debit card transactions online with SMS text alerts for card transactions.
  • Use tools like Money Manager to monitor financial health, including interactive digital bank statements and funds management.
  • Make mobile deposits and move funds with enhanced real-time and multi-item mobile deposit features.
  • Enjoy state-of-the-art security tools, including real-time fraud monitoring.

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Important Contact Information

Branch Contact Numbers:

Lafayette – 337-279-5900

Opelousas – 337-948-3033

Harry Guilbeau – 337-678-4111

Port Barre – 337-585-2301

Carencro – 337-520-2281

Eunice – 337-457-8196

Lost or Stolen Debit Card:

855-948-4400

Lost or Stolen MasterCard:

800-556-5678