Longenecker & Associates, LLC

Los Alamos, NM Part of Geosyntec Consultants, Inc.

UEI
GNXLRLFDCYJ7
CAGE
3MAV9
Primary NAICS
541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • For Profit Organization
  • Limited Liability Company
Entity structure
Corporate Entity (Not Tax Exempt)
NAICS codes registered in SAM.gov
Show all
Corporate family
SAM.gov registration date
Physical address
106 Central Park Square, Los Alamos, NM 87544, USA
Website
la-inc.com
Founded
1989
Employees
51-250
Estimated annual revenue
$10M-$50M
Industry
  1. Industrials
  2. Capital Goods
  3. Construction & Engineering
  4. Civil Engineering
SIC code
87 Engineering & Management Services
Profiles

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .

Recent federal awards

Longenecker & Associates, LLC's 5 most recent federal contract and grant awards, newest first. Amounts are dollars obligated.
Award Agency Obligated Awarded
Project management & technical analysis NA-23 HQ support for base period, new bridge contract. Effective date: march 16,… Contract · 89233126FNA400764 National Nuclear Security Administration $2,512,703
Project management and technical support services Contract · 89303026FPM000006 Headquarters $369,639
Subtask 1: the contractor will provide technical SME support to NA-11 with consultation in reconstituting tritium… Contract · 89233125FNA400664 National Nuclear Security Administration $499,279
Program management, technical and analytical support services for the office of material management and minimization… Contract · 89233119FNA400224 National Nuclear Security Administration $8,817,030
Requisition 19MA002029 was created to provide project management support to the department of energy. The period of… Contract · 89303019FMA400201 Headquarters $11,682,505

About Longenecker & Associates, LLC

Written by GovTribe AI ·

Longenecker & Associates Inc. is a woman-owned small business headquartered in Las Vegas, Nevada, with a robust federal government contracting profile. The company specializes in providing professional services across multiple sectors, with a strong focus on technical subject matter expertise, management consulting, and support services primarily within the nuclear and environmental industries. Registered in SAM.gov since 2003, Longenecker & Associates has established itself as a versatile contractor capable of delivering comprehensive technical, analytical, and management solutions to federal agencies, particularly the U.S. Department of Energy and its associated entities.

The company's federal contract awards demonstrate extensive experience in providing specialized technical services across multiple domains. Sub-contract awards reveal a significant portfolio of technical support services, including engineering expertise, quality assurance, regulatory analysis, strategic communications, environmental risk assessments, and professional consulting. Longenecker & Associates has worked extensively with prime contractors such as Triad National Security, LLC and Central Plateau Cleanup Company, performing tasks ranging from translation and graphic design to contingent labor, human resource services, and technical expert reviews. Many of their sub-contract awards are focused on nuclear-related projects, environmental management, and technical support for complex government initiatives, with particular emphasis on supporting Los Alamos National Laboratory and other Department of Energy facilities.

Longenecker & Associates holds two significant Indefinite Delivery Contract (IDV) vehicles under the ONE ACQUISITION SOLUTION FOR INTEGRATED SERVICES PLUS (OASIS+) program. The first is a Small Business Total Set-Aside IDIQ contract with a ceiling value of $999,999,999,999.00, running through December 18, 2029, which enables the company to provide professional services including program management, technical and analytical support, business operations performance coaching, leadership training, and engineering services. The second is an Unrestricted IDIQ contract with an identical ceiling value and performance period, also designed to deliver comprehensive professional services to multiple federal agencies. These OASIS+ contracts position Longenecker & Associates to compete for and execute a wide range of federal contracts across various agencies, leveraging their expertise in technical support, management consulting, and specialized professional services.

Contract vehicles

Longenecker & Associates, LLC holds a place on 4 federal contract vehicles. Active vehicles first.

Quick answers

What is Longenecker & Associates, LLC's UEI?

Longenecker & Associates, LLC's Unique Entity ID (UEI) in SAM.gov is GNXLRLFDCYJ7.

What is Longenecker & Associates, LLC's CAGE code?

Longenecker & Associates, LLC's CAGE code is 3MAV9.

What is Longenecker & Associates, LLC's primary NAICS code?

Longenecker & Associates, LLC's primary NAICS code is 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)).

Where is Longenecker & Associates, LLC located?

Longenecker & Associates, LLC's physical address in SAM.gov is 106 Central Park Square, Los Alamos, NM 87544, USA.

Is Longenecker & Associates, LLC registered in SAM.gov?

Yes. Longenecker & Associates, LLC's SAM.gov registration is active through February 6, 2027.

Who is Longenecker & Associates, LLC's parent company?

Longenecker & Associates, LLC is part of Geosyntec Consultants, Inc.

Which contract vehicles does Longenecker & Associates, LLC hold?

Longenecker & Associates, LLC holds a place on 4 federal contract vehicles, including MAS, OASIS+SB and OASIS+ Unrestricted.

What is Longenecker & Associates, LLC's most recent federal award?

Longenecker & Associates, LLC's most recent federal contract award is Project management & technical analysis NA-23 HQ support for base period, new bridge contract. Effective date: march 16,… (89233126FNA400764), from National Nuclear Security Administration, on March 24, 2026.

On GovTribe

See Longenecker & Associates, LLC's full federal record

  • Federal contract awards
  • IDV awards
  • Contract vehicles
  • Subcontracting relationships
  • Funding analysis by agency, NAICS and set-aside
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