HDR Aptim LLC

HDR Aptim LLC, a partnership subsidiary of HDR Inc. based in Englewood, Colorado, is a prime contractor delivering environmental remediation and engineering design services to the Environmental Protection Agency under the EPA Remedial Acquisition Framework: Design and Engineering Services (RAF DES) indefinite-delivery/indefinite-quantity contract vehicle, operating in full-and-open competition without small business set-aside designations across its federal footprint.

HDR Aptim functions as a specialized provider of Superfund site remediation, remedial design, remedial investigation, feasibility studies, and remedial action oversight services. The vendor's recent award portfolio is heavily concentrated in EPA work: Environmental Protection Agency Region 2 anchors the footprint with 18 awards totaling $32.3 million in combined potential value, while EPA Region 3, Region 8, Region 1, and Region 9 collectively account for the remaining 13 awards worth $34.4 million. Across all five EPA regions served, HDR Aptim holds 31 distinct prime awards covering contaminated Superfund sites spanning New Jersey, New York, California, Colorado, Pennsylvania, and the U.S. Virgin Islands. Representative work includes a $2.5 million delivery order from EPA Region 8 for interim remedial action implementation at the Nelson Tunnel site in East Helena, Montana (awarded March 2026, completion March 2029); a $5.99 million task order from EPA Region 3 for remedial design and design support at the Peck Iron and Metal Superfund site in Greenwood Village, Colorado (awarded April 2023, completion April 2028); and an $8.96 million cost-plus-fixed-fee order from EPA Region 8 for interim remedial design and sitewide remedial investigation at Nelson Tunnel in Creede, Colorado (awarded March 2023, completion March 2028). All thirty prime awards operate under the RAF DES vehicle, which represents the vendor's sole institutional pathway into the federal marketplace.

Activity shows cyclical award volume with seven awards in 2021, nine in 2022, seven in 2023, three in 2024, and one in 2026. Sixteen awards with combined potential value of $50.3 million face ultimate completion within the next twenty-four months, presenting significant recompete exposure and opportunity for competitors. The vendor's combined potential value across all awards reaches $945.2 million, though only $55.2 million (6%) has been obligated to date, reflecting the nature of indefinite-delivery contracts and the multi-year performance periods typical of Superfund remediation work.

HDR Aptim operates as a prime on 97% of its federal awards and carries a minimal sub footprint — one sub award under parent HDR Environmental, Operations And Construction, Inc. for government-furnished property modifications on a General Electric Pittsfield Housatonic River remedial project. Across SCI-reportable service contracts, the vendor self-performs the substantial majority of work; sub-hours account for 7% of total contractor hours on average across prime contracts, with 22 named subcontractors supporting specialized services including laboratory analysis (Eurofins Lancaster Laboratories, EMSL Analytical, Testamerica Laboratories, Pace Analytical Services), equipment rental (Pine Environmental Services, Field Environmental Instruments), geotechnical and drilling work (Schnabel Engineering, MB Drilling, AEY Inc.), and waste management (Frontier Services, an SDVOSB). This teaming pattern reflects a prime-led delivery model in which HDR Aptim carries core engineering and project management responsibility while outsourcing specialized, commodity-like technical services.

SCI-reported federal service-contract invoicing totaled $21.7 million across fiscal years 2022–2024 ($5.9 million in FY2022, $9 million in FY2023, $6.8 million in FY2024). The SCI dataset shows roughly 10–16 FTEs delivering services annually, though contract-level FTE counts on individual awards run significantly higher (15.7 to 15.5 FTEs annually), indicating that SCI captures only a portion of HDR Aptim's federal staffing on RAF DES contracts. Government-paid hourly rates on SCI-reportable work range across a spectrum — median around $174 per hour, with senior labor priced through $251 per hour and lower-skill work at $6 per hour, reflecting the breadth of labor categories (from field technicians through senior engineers and project managers) deployed across Superfund projects. The vendor carries no SCI-reported subcontractor engagement in the dataset, underscoring self-performance as the operational norm.

HDR Aptim is a child entity of HDR Environmental, Operations And Construction, Inc., itself a subsidiary within the HDR Inc. corporate ecosystem. HDR Inc. is a large, 100% employee-owned global professional services firm with extensive infrastructure and environmental consulting expertise; the corporate structure pools resources across HDR's environmental, operations, and construction divisions to support federal remediation contracting. This parent relationship provides HDR Aptim access to substantial capital, technical depth in geotechnical engineering, hydrogeology, waste management, and field operations — capabilities that inform its competitive position on complex multi-year Superfund sites where integrated delivery and long-term site stewardship are prerequisites for award and performance.