GSA Professional Services Schedule

ES3 is a supplier of products and services to government agencies through the General Services Administration (GSA) Professional Services Schedule (PSS). For more information on ordering from the GSA Federal Supply Schedules click on the FSS Schedules button at

US Federal agencies (including civilian and military) can contract with ES3 through PSS and receive "most-favored customer" pricing. ES3's PSS Contract Number is ES3's DUNS number is 12-728-3500 and federal Cage Code is 1PHL4. We have several military critical data agreements, clearing us for access to data subject to US export control laws.

There are two ways US federal agencies can use GSA PSS to contract with ES3.

  • The agency's own procuring authority can solicit for proposals, select the awardee, and issue delivery orders directly using the GSA PSS contract vehicle.
  • The agency can MIPR funds to GSA so that GSA functions as the procuring authority that issues the delivery order.

For more information about contracting with ES3 using GSA PSS, please contact:

Ed Moffett
ES3 Business Development
~ti weiv ot delbane si tpircSavaJ erus ekam liame detpyrcne na si sihT~