Extensitech, LLC.


Our mission is to provide extensible technology solutions that can adapt and grow with our clients.

If you're in need of new solution development or a solution rewrite, we specialize in rapid application development using the FileMaker platform. If you have an existing solution, we can help you upgrade it, improve it, streamline it and generally make it better.

We're proficient in FileMaker, of course, but also the FileMaker PHP API, PHP, SQL, Microsoft Office and Outlook, QuickBooks and QuickBooks Integration, CWP (Custom Web Publishing) and more. We have experience and intimate in-depth knowledge in Windows, MAC, iPhone, iPad and web development for FileMaker solutions.

We are a team of 3 full time FileMaker Certified Developers and we ALL work directly with one another. We work as a close-knit group to address and manage your project needs. We're committed to giving you the best experience in service, development and project experience. We have over 35 years of combined FileMaker experience, dating back to 1992 in version 2.1.

Additionally, we can advise you on how to best apply technology to your specific business needs. We work closely with our clients to ensure that the technical wizardry is in line with the actual business needs. It's easy to add a drop-down field here, or a new screen there, but we'll also listen closely to what you're trying to accomplish, and let you know if there are better, or easier, options. We're not just techies, we're experienced business consultants who can understand and evaluate you're needs.

We've created custom solutions in many different industries: printing companies, non-profit organizations, universities, agriculture, document management, manufacturing, distribution, sales and marketing, real estate and more. Our talent is in listening to how you do business (and how you WANT to do it) and leveraging FileMaker and other technologies to support your particular needs.

We serve clients across the US and around the world. By using remote desktop software, we can respond quickly to your needs, without the hassle and delay of travel.

Call us today for a COMPLIMENTARY consultation... not a sales pitch, a true consultation. Sometimes we find that a potential client is better served by existing, off-the-shelf software, or by doing some or all of the work themselves, or by leveraging some program or solution they already have. We'll help you figure out how to best accomplish what you need, even if that turns out that the best approach doesn't involve us. We won't try to get your business unless we KNOW we're the best option for your needs.


  • Consultant
  • Reseller
  • Solution



Tampa Bay, FL, US


  • Tampa Bay, FL, US


  • English




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