Ones Plexus Joint Venture LLC
Tulsa, OK Part of Osage Nation Energy Services LLC
- UEI
- UHNZUQL3ACW6
- CAGE
- 9DMA4
- Primary NAICS
- 541620 Environmental Consulting Services
- SAM.gov registration
- Active through
Company facts
- SBA certifications
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8(a) Joint Venture– · Current
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Tax Exempt)
- NAICS codes registered in SAM.gov
- Corporate family
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Osage Nation Energy Services LLC
Parent
V1U1FNF1LLV4
- Ones Plexus Joint Venture LLC UHNZUQL3ACW6
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Osage Nation Energy Services LLC
Parent
V1U1FNF1LLV4
- SAM.gov registration date
- Physical address
- 3455 N Osage Dr, Tulsa, OK 74127, USA
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Minimum guarantee for basewide environmental support (best) IDIQ contract for the environmental quality program. | ENDIST Mobile | $1,000 | |
| (8892) new tech and cleanup plan for ftbr 308 and 16 | ENDIST Savannah | $267,759 | |
| Erosion control and stabilization at solid waste management unit (swmu) 5, and site maintenance and well system… | ENDIST Savannah | $474,293 | |
| This contract is to provide project delivery services for the department of veterans affairs. | Interior Business Center | $4,284,513 | |
| Mcentire SC pfos RI | ENDIST Savannah | $2,099,648 |
About Ones Plexus Joint Venture LLC
Ones Plexus Joint Venture LLC is a tribally-owned and minority-owned 8(a) certified joint venture headquartered in Tulsa, Oklahoma, that specializes in providing environmental remediation, investigation, and professional services to federal agencies. The company is registered in SAM.gov through April 2026 and holds an active SBA Certified 8(a) Joint Venture certification valid through February 2027. As a Native American-owned small business with expertise in complex infrastructure projects, Ones Plexus Joint Venture LLC serves as a prime contractor to the federal government, leveraging its technical capabilities and federal contracting experience to support military installations and government facilities across environmental compliance and remediation initiatives.
Ones Plexus Joint Venture LLC has secured four significant prime federal contract awards totaling approximately $20.1 million since November 2024, demonstrating substantial capacity in environmental remediation and facilities management services. The company has received multiple delivery orders from the U.S. Army Corps of Engineers, Savannah District, including a $267,759.10 firm fixed-price delivery order for new technology and cleanup planning services at Fort Liberty, North Carolina (awarded September 29, 2025, with completion through September 28, 2028), and a $474,293.30 delivery order for erosion control, stabilization, and site maintenance activities at Fort Bragg, North Carolina (awarded September 23, 2025, with completion through September 22, 2028). Additionally, the company received a $2,099,648.00 remedial investigation delivery order addressing per- and polyfluoroalkyl substances (PFOS) contamination at McEntire Joint National Guard Base in South Carolina (awarded November 4, 2024, through November 3, 2029). Most significantly, Ones Plexus Joint Venture LLC was awarded a $17.2 million definitive contract by the Department of Veterans Affairs Office of Construction and Facilities Management on September 3, 2025, designated as an 8(a) sole source set-aside, to provide comprehensive project delivery services supporting VA construction and facilities management initiatives through September 2, 2030. These awards reflect the company's demonstrated expertise in environmental assessment, investigation, remediation planning, and infrastructure project delivery for military and federal facilities.
Ones Plexus Joint Venture LLC holds two significant Indefinite Delivery Contracts that position the company as a key federal services provider across multiple agencies. The company was awarded a $49 million Environmental Remediation Services (ERS) Indefinite Delivery Contract by the U.S. Army Corps of Engineers, Savannah District, on July 1, 2024 (performance through June 30, 2029), which is competitively set aside for SBA 8(a) joint venture firms and supports the agency's environmental remediation and Military Munitions Response Program requirements. Additionally, Ones Plexus Joint Venture LLC was awarded a seat on the OASIS+ 8(a) Small Business Multiple Agency Contract (OAS+8A), a governmentwide multiple-award indefinite delivery contract administered by the General Services Administration's Federal Acquisition Service, with a $999.99 billion ceiling and performance through April 15, 2030. The OAS+8A contract, competitively set aside exclusively for SBA-certified 8(a) small businesses, enables task order issuance across civilian and defense federal agencies for professional services spanning environmental remediation, investigation, per- and polyfluoroalkyl substances remediation, environmental site assessment, and related technical support services. Through these IDV vehicles, Ones Plexus Joint Venture LLC maintains flexible contracting mechanisms to respond to evolving federal agency requirements for specialized environmental and professional services over extended performance periods.
Contract vehicles
Quick answers
What is Ones Plexus Joint Venture LLC's UEI?
Ones Plexus Joint Venture LLC's Unique Entity ID (UEI) in SAM.gov is UHNZUQL3ACW6.
What is Ones Plexus Joint Venture LLC's CAGE code?
Ones Plexus Joint Venture LLC's CAGE code is 9DMA4.
What is Ones Plexus Joint Venture LLC's primary NAICS code?
Ones Plexus Joint Venture LLC's primary NAICS code is 541620 (Environmental Consulting Services).
Where is Ones Plexus Joint Venture LLC located?
Ones Plexus Joint Venture LLC's physical address in SAM.gov is 3455 N Osage Dr, Tulsa, OK 74127, USA.
Is Ones Plexus Joint Venture LLC registered in SAM.gov?
Yes. Ones Plexus Joint Venture LLC's SAM.gov registration is active through April 20, 2027.
Who is Ones Plexus Joint Venture LLC's parent company?
Ones Plexus Joint Venture LLC is part of Osage Nation Energy Services LLC.
Which SBA certifications does Ones Plexus Joint Venture LLC hold?
Ones Plexus Joint Venture LLC holds 8(a) Joint Venture certification from the SBA.
Which contract vehicles does Ones Plexus Joint Venture LLC hold?
Ones Plexus Joint Venture LLC holds a place on 2 federal contract vehicles, including OASIS+8A and Savannah Environmental Remediation Services.
What is Ones Plexus Joint Venture LLC's most recent federal award?
Ones Plexus Joint Venture LLC's most recent federal contract award is Minimum guarantee for basewide environmental support (best) IDIQ contract for the environmental quality program (W9127826FA126), from ENDIST Mobile, on April 22, 2026.
On GovTribe
See Ones Plexus Joint Venture LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Funding analysis by agency, NAICS and set-aside
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