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Attention Business Online Banking Customers: Please be advised that our Cash Management Agreement has been updated as of 5/15/2024 to a more concise and streamlined version. Upon logging into your account, you will be asked to accept the terms and conditions of this new agreement.

Browse our Security Center for tools and resources to protect your privacy and personal financial information. Find online banking security tips along with information on common scams. If you are ever in doubt, call us directly at (207) 839-4796.

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Business Credit Cards

Business Platinum Mastercard®

Business Platinum Mastercard®

With no annual fee*, additional cards at no cost, and a competitive rate, the Business Platinum Mastercard® from GSB is a card that works as hard as you do. It comes packed with features that make it a great tool for simplifying and streamlining day-to-day operations. Best of all, it’s backed by a local bank and a team you trust.

  • No annual fee*
  • Spending alerts and controls
  • 0% intro APR the first 6 months of purchases, after that a variable APR that is Prime +5.74% to Prime +13.74% applies, based on creditworthiness. The APR will not exceed 23.99%*
  • 0% intro APR for the first 12 months on balance transfers made within the first 60 days of account opening*, after that, a variable APR that is Prime +5.74% to Prime +13.74% applies, based on creditworthiness. The APR will not exceed 23.99%.1
  • Consolidated company or individual statements
  • Additional cards are available at no cost
  • Travel assistance services for travel documents and medical referrals
  • User-friendly online and mobile experiences
  • Contactless payment on supported devices via Apple Pay®, Samsung Pay® and Google Pay®
Business Platinum Mastercard®
Construction workers on tablet



Construction workers on tablet

All of GSB’s Business Cards come packed with features designed to make life easier and more rewarding for business owners. From travel assistance to contactless payments, these cards are built to work. Program Administrator functionality even allows you to manage your team’s spending in real-time or open/close accounts. And the best part? Your new Business Card will be from a local bank and a team you trust. So if you ever have questions, just call. Better yet, come on by. 

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Need help deciding which card is right for you? Speak with our Cash Management team by calling (207) 221-8460 or complete this form and we’ll be in touch.

Christine Weymouth