Professional Engineering Services (PES)

GSA Federal Acquisition Service established the Professional Engineering Services (PES) Master GSA Schedule on August 15, 1999, but ordering closed on April 1, 2023, and the vehicle is being phased out in favor of the Professional Services Schedule (PSS). Pursuit of this vehicle is not recommended; no new task orders have been awarded since April 2020, and the ordering period has expired.

The vehicle originally contracted technical, construction, and logistics engineering services across a broad scope. Of 6,974 total task orders awarded over the vehicle's life, only 4 orders were issued in 2020, down from 149 in 2016, signaling steep decline well before the April 2023 ordering cutoff. The most recent award dates in the task-order sample span 2018–2020, confirming that active procurement under PES concluded years ago. While the vehicle carries combined potential value of $10.45 billion, $8.37 billion (80 percent) has already been obligated, leaving minimal unspent capacity.

Booz Allen Hamilton and Logistics Management Institute dominate the awardee base. Booz Allen holds $2.62 billion in combined potential value across 997 orders; Logistics Management Institute holds $1.68 billion across 1,217 orders. Together, these two primes and General Dynamics Information Technology, Engility Services, and Project Support Services account for 57 percent of combined potential value. The wider field includes 89 additional small-to-mid-size contractors, but activity is heavily concentrated in the top tier.

Customer demand is distributed across 403 distinct agencies, but concentrated in defense and civilian operations. The Department of Homeland Security U.S. Coast Guard, Department of the Navy, and NASA Johnson Space Center together represent 25 percent of awarded orders, reflecting strong demand for aviation security testing, naval systems analysis, and space exploration assessments. All 6,951 awarded task orders (99.7 percent) carried no small-business set-aside, indicating unrestricted competition among qualified vendors.

Typical task orders ranged from under $100,000 to several million dollars, with pricing structures mixing firm fixed price, labor hours, and time and materials. The vehicle's successor, The Professional Services Schedule (PSS), is the active contracting path; vendors not already migrated should pursue listing under PSS rather than attempting to access this legacy vehicle.

This is the summary page for contract activity under the LEGACY Schedule 871 Master Federal Supply Schedule for Professional Engineering Services (PES). GSA is no longer awarding new Federal Supply Schedule contracts under this vehicle as it is being phased out. Services formerly procured under PES are being transitioned to The Professional Services Schedule (PSS), also referred to as 00CORP or The Consolidated Schedule. Delivery order activity under this vehicle may continue until all of the vendor-level Federal Supply Schedule contracts, and the delivery orders themselves, have expired. Contract activity contained under this LEGACY vehicle is for companies that did not move over to PSS, or that did move over to PSS but did so under a new contract number. Services procured under this schedule included various technical, construction, and logistics engineering services.