Ernst & Young is a multinational professional services firm headquartered in London, United Kingdom. It is one of the Big Four" audit firms and is the third largest professional services firm in the world by aggregated revenue in 2014

Exeter Group is an IT Consulting firm specializing in custom applications, B2B Integration, and implementation services. Located in Cambridge, Massachusetts and Los Angeles, California.

Excella Consulting helps federal government and commercial clients develop and execute strategies to use technology.

ERSA Group is a management consulting, technology services and outsourcing company that specializes in the consulting, design and implementation of IP network solutions.

Equant Solutions develops customized Business Intelligence solutions. The company's services cover both the strategic and tactical levels of Business Intelligence.

Epiq Systems is a provider of integrated technology products and services for the legal profession. The company offers case management and document management solutions for electronic discovery, legal notification, claims administration, and controlled disbursement.

Tribridge is an information technology consulting firm that provides services in Enterprise Resource Planning (ERP), Customer Relationship Management (CRM),Portals and Collaboration, Custom Software Development, IT Security, Business Intelligence, Network Infrastructure, Cloud Computing and Microsoft Dynamics implementation.

Endeavor Consulting Group is a specialty Project Management technology and integration consulting firm focused on Operational Systems for the Life Science enterprises.

Edgewater Technology is a technology management consulting firm headquartered in Wakefield, Massachusetts. Edgewater, recognized by CNN/Money as the 28th fastest growing small business in 2008. and ranked among the Globe 100 best businesses in MA 2008, The company provides services both vertically by industry and horizontally by product and technology specialty.

Eclipse Consulting, Inc. provides services in technology consulting, database administration and outsourced IT Services.