Oneida Environmental, LLC

Oneida Environmental, LLC (doing business as Oneida Total Integrated Enterprises LLC) is a tribally-owned, SBA 8(a)-certified environmental remediation and consulting firm based in Wauwatosa, Wisconsin, that delivers environmental assessment, remediation, invasive species management, and compliance services primarily to the Department of Defense on 8(a) sole-source and competitive set-aside contracts as a prime contractor.

Oneida Environmental operates as a prime on 96% of its federal footprint (23 of 24 recent awards) and holds the corporate structure of a limited liability company with two named joint-venture subsidiaries: Oneida-Stantec JV LLC and Oneida-Cape JV LLC, both tribally-owned small business joint ventures. The firm is minority-owned, Native American-owned, certified as an Indian Small Business Economic Enterprise and Indian Economic Enterprise, and holds self-certified small disadvantaged business status with 8(a) certification expiring November 15, 2032.

The vendor's customer base concentrates heavily on defense environmental stewardship. The top five funding agencies by award count represent 58% of recent awards, led by the Department of the Navy Naval Facilities Engineering Command (5 awards, $22.6 million combined potential value) and Navy Installations Command (4 awards, $301 thousand), followed by the Army Corps of Engineers Engineering District Omaha (2 awards, $169.4 million), the Air Force Civil Engineer Center (2 awards, $5.3 million), and the Department of Agriculture Forest Service (1 award, $39 thousand). By combined potential value, the portfolio is anchored by the Corps of Engineers Engineering District Omaha ($169.4 million across 2 awards, 79% of total dollars), driven by a $99.9 million single-award Indefinite Delivery Contract for environmental remediation and Military Munitions Response Program services awarded September 11, 2025, with an initial seed delivery order of $69.5 million firm fixed price issued September 15, 2025, for work in Pueblo, Colorado through September 14, 2030.

Capability framing derives from work awarded under two primary NAICS categories: Other Scientific and Technical Consulting Services (9 awards) and Environmental Consulting Services (8 awards), with remediation services representing 5 awards. Representative concrete work includes a $5.3 million 8(a) sole-source definitive contract from the Department of Defense Office of the Secretary of Defense for Fort Wingate IRP PFAS Remedial Investigation through September 17, 2028; a $2.87 million 8(a) sole-source fence-to-fence environmental services contract from Air Force ENDIST Fort Worth covering Altus Air Force Base, Oklahoma and Little Rock Air Force Base, Arkansas through April 17, 2027; a $2.35 million full-and-open definitive contract from the Air Force Civil Engineer Center for fence-to-fence environmental services at Whiteman Air Force Base, Missouri through February 28, 2029; a $2.75 million full-and-open delivery order from Air Force Reserve Command under the GSA Multiple Award Schedule (exercising Option Year 2) for Stormwater Pollution Prevention Plan support, Spill Prevention Control and Countermeasures support, and Facility Response Plan compliance at multiple Air Force Reserve bases through September 30, 2029; and a $2.62 million Indian Small Business Economic Enterprise set-aside purchase order from the Department of Interior Bureau of Indian Affairs Western Region for trust resource assessment and remedial planning at the Shoshone-Paiute Tribes Duck Valley Indian Reservation in Nevada through May 23, 2028. Invasive species control and environmental monitoring work is distributed across multiple Naval installations, including $179,863 for Dam Neck Resource Evaluation and Monitoring at Naval Station Norfolk through August 29, 2030, and $173,179 for Fort Story Resource Assessment and Monitoring in Norfolk through May 31, 2029, both under a $22 million Naval Facilities Engineering Command Indefinite Delivery Vehicle contract for mission, sustainment, and coastal resilience services.

Oneida Environmental holds three named parent vehicles: the $99.9 million single-award Indefinite Delivery Contract with Army Corps of Engineers ENDIST Omaha (1 task order, $69.5 million potential value); a $22 million single-award Indefinite Delivery Vehicle with Naval Facilities Engineering Command (8 task orders, $908 thousand combined potential value) running through September 9, 2029; and a $1 million GSA Multiple Award Schedule contract (2 task orders, $2.8 million combined potential value) awarded May 31, 2024, through May 30, 2029, covering environmental consulting services under SIN 541620 with a 32-category labor portfolio ranging from $56.20/hr (clerical) to $185.44/hr (program manager), education requirements from high school through master's degree, and no security-cleared positions.

Activity trajectory shows growth through 2024–2025, with one award in 2023, ten in 2024, ten in 2025, and three to date in 2026. Nine awards (combined potential value $11.9 million) reach ultimate completion within the next twenty-four months and face recompete exposure. Combined potential value across all 24 awards stands at $214.7 million, with $64.3 million obligated (30% of potential). Set-aside posture across the prime footprint is predominantly 8(a) sole source, with a secondary stream of full-and-open awards. The vendor maintains minimal sub engagement: SCI-reported service contract data shows only 1.1 FTEs delivered in FY2025 (generating $223 thousand in reportable invoicing), with zero sub-hours share across prime contracts, indicating that Oneida Environmental builds its own delivery teams rather than relying on subcontractors. The vendor operates as a subcontractor on one named award: a Leidos Inc. prime contract for preliminary assessments and site inspections of PFAS at multiple BRAC installations nationwide, with work scoped August 7, 2025 through December 31, 2025.

Oneida Environmental (OE) is a Native American, tribally owned SBA certified 8(a), Small Disadvantaged Business. OE and affiliates perform the following services for Federal clients:

Natural/Cultural Resource Assessment and Management

CERCLA/RCRA (PA/SI, RI/FS, RFA/RFI, RD/RA, LTO/LTM, EBS), High-Resolution Site Characterization

PFAS Investigation and Remediation

Treatment system O&M and optimization

GIS Management, Remote Sensing

NEPA Documentation (EA, EIS, CATEX, FONSI)

Federal, State, Local government permitting (FDEP, USACE)

Construction monitoring, management, support

Mitigation & conservation banking

INRMP, ICRMP Preparation, Updates, Implementation

Munitions Response and Operational Range Clearance (LLRW, and Range Residue Removal, ESS development, UXO safety, MEC removal/disposal, MPPEH/MDAS certification, packaging, and recycling)

Installation-wide (Fence-to-Fence) regulatory compliance (CAA, CWA, SPCC, EPCRA, EMS, RCRA, TRI, NEPA, P2, INRMP, ICRMP)