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We are InterSystems Technologies Experts

4W has been focusing almost entirely on InterSystems and related technologies for more than 25 years, our experience spans the entire technological range from early M (MUMPS) technologies to the latest InterSystems technologies such as Caché and Embedded Technologies (Zen, CSPs, WEBLINK), Ensemble, HealthShareDeepSee and iKnow. We are also well versed in various related software such as VistA, IHS, QuadraMed (QCPR), GE (IDX), HSII, Antrim/Sunquest and many more.

Our breadth as well as depth of experience provides us with the necessary expertise to handle any challenge ranging from a Conversion of an early M (MUMPS) application to the latest technologies, Custom application DevelopmentApplication Support and Problem ResolutionSystems IntegrationInterface Engine Migration, System Deployment and Support, Project Management as well as remote Staff Augmentation.

Our expertise does not only include Healthcare but also verticals such Financial ServicesGovernmentInsuranceRetail & Wholesale just to name a few.

What We Do

  • Custom Application Development

  • Systems Integration

  • Interface Engine Migration

  • System Deployment and Support

  • Project Management

  • Staff Augmentation

  • Data Dictionary Creation


Many thousands of lines of code were examined, and many hundreds of lines were modified. To achieve zero defects was quite impressive.

— Alan K


4W’s work was done in a professional and reliable manner in difficult and stressful circumstances.

— David K.


4W is a vendor that I would recommend. They made valid recommendations that saved us time and money. They were willing to have long conversations presenting us all the options so we make informed decisions.

— Theokli H.