ExtensionEngine   Web and Mobile Software Design & Development UNCLAIMED

ExtensionEngine has been building web and mobile software solutions for some of the worlds most dynamic companies since 2000. Headquartered at the Harvard Innovation Lab in Boston, our team of more than 175 engineers, product managers, and designers serves a growing list of clients.

ExtensionEngines suite of services delivers an end-to-end solution or can be leveraged to supplement your existing technology resources. From ideation through to product launch, we can help you implement cutting-edge web and mobile software solutions that will transform your organization. Our services include:

  • Web and mobile software development
  • Product ideation and business consulting
  • UX design
  • System integration
  • Maintenance and support
  • QA, testing and documentation

(Not Rated)

Founded : 2001

Employees : 50 - 249

Min. Project Size: Undisclosed


Key Clients

EMC, Bright Horizons, Fidelity, eBay, Harvard University, Novartis, Pfizer and many mid-market and Fortune 500 clients.

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125 Western Avenue
Boston, Massachusetts 2163
+1 703-444-0505

Focus Areas/Specialities

  • Web Design
  • Web development
  • Ecommerce development
  • Enterprise software development
  • Mobile app development
  • UX/UI Design
  • Application testing
  • Productivity, collaboration & UC consulting and SI
  • Productivity, collaboration & UC consulting and SI
  • Other IT consulting and SI


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