Employer Ledger
Records as ofOFLC30 Jun 2026OSHA14 Sep 2026300A2023 to 2025WHD15 Jun 2026USAspendingread 2 Oct 2026NLRBno data

UChicago Argonne, LLC: H-1B filings and workplace records, Lemont, Illinois

Industry Professional, Scientific, and Technical Services (NAICS 541715)3,723 employees reported220 federal recordsNewest record

UChicago Argonne, LLC filed 75 labor condition applications (LCA) in fiscal year 2026, to 30 June 2026. OFLC certified all of them. The median offered wage on its LCAs in fiscal years 2025 to 2026 is $90,063 a year. It filed 1 PERM application in fiscal year 2026, to 30 June 2026. OFLC certified it. An LCA is a filing. It is not a visa and it is not a job.

Is this the same company?

The site joins the records of each agency by employer name and by state. It has no other key.

A record on this page can belong to a different firm that has the same name.

How the site matches records

Since the last update

No change. The site tracks the LCA filings, PERM applications, OSHA inspections and back wages of this employer record. Changes and data dates

H-1B and PERM: Office of Foreign Labor Certification

Decisions to Newest file fiscal year 2026, quarter 3Read from the committed copy

Employer-specific case information that appears on this website was provided to OFLC by employers who submitted prevailing wage, labor certification and labor attestation applications for processing. These are not employer responses to the Bureau of Labor Statistics' Occupational Employment Statistics (BLS-OES) survey.

Any typographical errors or other data anomalies (e.g., incomplete or blank data fields, etc.) may be due to internal data entry or other external customer errors in completing and submitting the applications for processing.

A small percentage of determinations may be subject to change in subsequent quarterly releases due to appeal or redetermination decisions on employer applications.

The words of the Office of Foreign Labor Certification. Source: Performance Data, read .

LCA filings, fiscal year 2026
75100% certified, year to date
Median offered wage
$90,063a year; prevailing $72,363
Worker positions
222fiscal years 2025 to 2026
PERM applications, fiscal year 2026
1100% certified
UChicago Argonne, LLC: LCA filings by fiscal year fiscal year 2026 is to 30 Jun 2026
Fiscal yearFilingsCertifiedCertified shareDeniedWithdrawn
202514314098%03
20267575100%00
UChicago Argonne, LLC: offered wages by job title fiscal years 2025 to 2026
Job titleMedian offered wageLCA filings
Postdoctoral Appointee$70,75874
Nuclear Engineer$94,48612
Assistant Computational Scientist$90,06310
Energy Systems Analyst$93,7988
Assistant Computer Scientist$90,0638
Materials Scientist$109,9225
Physicist$115,7704
Assistant Scientist$90,0634
Computational Scientist$99,9934
Research Scientist$90,0634
Predoctoral Appointee$65,3964
Mechanical Engineer$90,0633

A wage is a year: the rate on the form times its unit, so an hourly rate times 2,080. A median needs three or more applications that state a wage. The list holds the twelve most frequent job titles.

Prevailing wage levels on the filings

UChicago Argonne, LLC: LCA filings by prevailing wage level
LevelFilingsShare
Level I8439%
Level II8439%
Level III4420%
Level IV63%
Not stated00%
UChicago Argonne, LLC: LCA filings by occupation
Occupation (SOC)LCA filingsMedian offered wage, all employers
Physicists38$85,588
Computer and Information Research Scientists36$185,000
Mechanical Engineers, R&D31$88,283
Materials Scientists24$90,834
Chemists18$88,508
Environmental Engineers16$97,344
Nuclear Engineers12$119,045
Electrical Engineers, R&D8$93,338
UChicago Argonne, LLC: LCA filings by worksite state
Worksite stateLCA filings
Illinois218

OFLC files an LCA under the state of the employer address on the form (Illinois). The worksites can be in other states.

PERM applications (permanent labor certification)

UChicago Argonne, LLC: PERM applications by fiscal year fiscal year 2026 is to 30 Jun 2026
Fiscal yearApplicationsCertifiedDeniedWithdrawn
20240000
20250000
20261100
UChicago Argonne, LLC: PERM applications by job title
Job titleApplications
Scientific Associate1
UChicago Argonne, LLC: PERM applications by occupation
Occupation (SOC)Applications
Electronics Engineers, Except Computer, Non-R&D1

Fiscal year 2024 holds the applications on the new Form 9089 only.

Federal contracts: USAspending.gov

Period the latest 12 monthsRead from the agency

There are various reasons financial or award data is not reported by agencies or otherwise available to USAspending.gov at a given time. These include, but are not limited to, timing of data availability, or sensitive data that is not subject to submission. Where possible, USAspending.gov advises readers that other information exists that cannot be detailed.

The words of the USAspending.gov. Source: About the Data, glossary entry Unreported Data, read .

Contract obligations, latest 12 months
$1.1B
Recipient level
ChildUEI JA8EP8EKX8Y9

USAspending lists Uchicago Argonne, LLC among the 3,903 largest federal contract recipients. The site matches the name across all states, so the total is for the whole company. USAspending credits Dun and Bradstreet (D&B) for some recipient data. Data sources

Uchicago Argonne, LLC: contract obligations by fiscal year
Fiscal yearObligations
2021$993M
2022$1.1B
2023$1.1B
2024$1.2B
2025$1.3B
2026$1.1B
Uchicago Argonne, LLC: obligations by awarding agency
AgencyObligations
Department of Energy$6.7B

No record at these agencies

OSHA

OSHA inspections

The enforcement data since 2016 has no OSHA inspection of this employer in Illinois. OSHA records an inspection at the establishment, so sites in other states are under those states.

Records to . Inspections opened since 2016. Read from the committed copy.

300A

Injury summaries

The Injury Tracking Application data for 2023 to 2025 has no Form 300A summary of this employer in Illinois. Only establishments in covered industries with 20 or more employees must send one.

Calendar years 2023 to 2025. Read from the committed copy.

WHD

Back wages

The data since fiscal year 2005 has no concluded Wage and Hour Division case of this employer in Illinois.

Concluded cases to . Cases since fiscal year 2005. Read from the committed copy.

NLRB

Union elections

The site holds no NLRB election results at this time. nlrb.gov did not accept the requests of the site, so the copy is empty.

Data none, the copy on this site is empty. Not read from the agency.

Other employers in Illinois

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Professional, Scientific, and Technical Services in Illinois

Questions about this record

What happened to the LCAs of UChicago Argonne, LLC?
UChicago Argonne, LLC filed 218 LCAs in fiscal years 2025 to 2026. OFLC certified 215 of them. OFLC denied none. The employer withdrew 3.
Which job title is most frequent on the LCAs of UChicago Argonne, LLC?
The job title Postdoctoral Appointee has 74 filings. Its median offered wage is $70,758 a year.
Which prevailing wage levels do the LCAs state?
The LCAs state Level I in 39%, Level II in 39%, Level III in 20% and Level IV in 3%. The employer states the level on the form.
Has OSHA inspected UChicago Argonne, LLC in Illinois?
The enforcement data since 2016 has no OSHA inspection of this employer in Illinois. Sites in other states have their own records.

Official channels

Cite this page

Employer Ledger. "UChicago Argonne, LLC (Illinois)." https://employerledger.com/employer/uchicago-argonne-llc-il/. Records of: Office of Foreign Labor Certification; USAspending.gov. Newest record .

The address of this page does not change. The figures change when an agency publishes new records.

Where the figures come from

  • OFLC Office of Foreign Labor Certification. Decisions to . Newest file fiscal year 2026, quarter 3. Read , from the committed copy.
  • OSHA Occupational Safety and Health Administration. Records to . Inspections opened since 2016. Read , from the committed copy.
  • 300A OSHA Injury Tracking Application, Form 300A. Calendar years 2023 to 2025. Read , from the committed copy.
  • WHD Wage and Hour Division. Concluded cases to . Cases since fiscal year 2005. Read , from the committed copy.
  • USAspending USAspending.gov. Period the latest 12 months. Read , from the agency.

The site built this page on . The methodology tells how records are matched and counted. To report an error in the processing, use the corrections page. The agency that holds a record decides disputes about it.