ExtensionEngine has been building web and mobile software solutions for some of the world’s 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.

ExtensionEngine’s 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

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