Horizon Environmental Solutions Corporation

Horizon Environmental Solutions Corporation, a service-disabled veteran-owned small business (SDVOSB) based in Cranberry Township, Pennsylvania, provides hazardous and non-hazardous waste removal, transportation, and disposal services exclusively to the Defense Logistics Agency (DLA) Disposition Services as a prime contractor under multiple indefinite delivery contracts set aside for small businesses.

Horizon operates as a 100% prime contractor with no sub-award activity across its 431 total federal awards spanning from 2008 to the present. The company competes under full-and-open set-asides, with the underlying indefinite delivery contracts designated as Total Small Business set-asides, though most individual delivery orders themselves carry no set-aside designation at the task-order level. As a veteran-owned entity structured as a Subchapter S corporation, Horizon's SDVOSB status anchors its competitive positioning in DLA Disposition Services' environmental and waste management procurement.

Horizon's capability footprint centers on the removal, transportation, and disposal of hazardous materials including compressed gases, polychlorinated biphenyls (PCBs), per- and polyfluoroalkyl substances (PFAS) liquids, laboratory packs, and fluorescent lamps, alongside non-hazardous waste streams such as sludges, debris, and miscellaneous materials. Representative work includes a $157 thousand delivery order for PFAS liquids disposal exceeding 100 parts per million at Wright-Patterson Air Force Base (awarded August 2024), a $157.8 thousand non-RCRA sludges and solids removal contract (awarded June 2023), and recurring monthly management services orders valued between $25,000 and $35,000. Nearly all work is performed at Wright-Patterson Air Force Base, Ohio.

Customer concentration is absolute: DLA Disposition Services accounts for 430 of 431 awards (99.8% of combined potential value of $19.3 million). This single-agency dependency reflects Horizon's established position as a specialized vendor on DLA's environmental services indefinite delivery contracts rather than broad federal market penetration.

Horizon sits on five parent indefinite delivery vehicles, all held with DLA Disposition Services. The largest vehicles are Indefinite Delivery Contract SP450021D0005 (120 task orders, $2.8 million combined potential value, running through February 28, 2026), Indefinite Delivery Contract SP450016D0001 (176 task orders, $2.6 million), and Indefinite Delivery Contract SP450011D0002 (113 task orders, $1.4 million). These vehicles were originally awarded beginning in March 2021 and enable DLA to issue recurring firm fixed-price delivery orders for flexible environmental support at the base on an as-needed basis.

Award activity has moderated in recent years—23 awards in 2022, 38 in 2023, 24 in 2024, and 21 in 2025—with six awards through mid-April 2026. The recompete exposure over the next twenty-four months is modest: thirteen awards with ultimate completion dates in that window carry combined potential value of $335 thousand. However, Horizon's three largest parent contracts face material recompete risk as their periods of performance approach and potentially extend beyond February 2026; these vehicles anchor the majority of the vendor's task-order pipeline.

Horizon Environmental Solutions operates in a narrow market: hazardous waste treatment and disposal (NAICS 562211) under housekeeping and waste treatment/storage services (PSC 6500). The vendor's portfolio shows no diversification across agencies, contract types, or service lines outside this single DLA Disposition Services relationship. This posture—100% single-customer, 100% prime, entirely set-aside-dependent—creates both concentration risk and recompete cliff exposure tied to DLA's renewal of its environmental services indefinite delivery vehicles.