Individual filings
UChicago Argonne, LLC — filing by filing
All 51 stored filings on record for UChicago Argonne, LLC, each with its case number, decision date, occupation, offered wage and worksite. Every block states how many worker positions the filing covers and under which petition type, because those are not the same thing as people.
- Filings shown
- 51
- New-employment positions
- 25
- Continued-employment positions
- 9
- Certified
- 32
Every individual filing we hold for this employer.
Latest decision Mar 26, 2026
Positions filed as NEW employment across the filings below — the closest honest read on new people being sponsored.
The same worker renewed. Shown separately and never added to the figure on its left, because adding them would count one person twice.
Filings certified by the Department of Labor. Certification is permission to file with USCIS, not a visa.
0 denied · 19 withdrawn
How to read a position count
Each filing below says how many worker positions it covers. That is a count of positions on one application, not a count of people, and the petition type is what tells the two apart. A new employment filing is a worker being sponsored into a role. A continued employment filing is the same person already doing the job, renewed for another term — so a company that renews the same ten employees every three years produces ten more positions each time without hiring anyone.
That is why nothing on this page adds the position column up. Across the filings shown, UChicago Argonne, LLC filed 25 new-employment and 9 continued-employment positions; those are two different measurements and their sum describes nobody.
The 12 most recent filings
Newest decision first. Case numbers are public and are the DOL's own identifier for the application.
Postdoctoral Appointee
I-200-26078-715942
CertifiedDecided Mar 26, 202617-2081.00 · Environmental Engineers · Level I
$70,000–$74,999 band offered/yr · prevailing $60,000–$64,999 band
Lemont, IL · Apr 2026 → Apr 2029 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Nuclear Engineer
I-200-26078-716470
Certified, then withdrawnDecided Mar 26, 202617-2161.00 · Nuclear Engineers · Level II
$90,000–$94,999 band offered/yr · prevailing $75,000–$79,999 band
Lemont, IL · Apr 2026 → Apr 2029 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Postdoctoral Appointee
I-200-23030-736113
Certified, then withdrawnDecided Mar 19, 202619-2031.00 · Chemists · Level I
$65,000–$69,999 band offered/yr · prevailing $45,000–$49,999 band
Lemont, IL · Apr 2023 → Apr 2026 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Postdoctoral Appointee
I-200-25307-362746
Certified, then withdrawnDecided Mar 19, 202619-2031.00 · Chemists · Level I
$70,000–$74,999 band offered/yr · prevailing $65,000–$69,999 band
Lemont, IL · Jan 2026 → Jan 2027 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Postdoctoral Appointee
I-200-26064-682352
CertifiedDecided Mar 12, 202615-1221.00 · Computer and Information Research Scientists · Level I
$70,000–$74,999 band offered/yr · prevailing $60,000–$64,999 band
Lemont, IL · May 2026 → May 2027 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Nuclear Engineer
I-200-26064-682437
CertifiedDecided Mar 12, 202617-2161.00 · Nuclear Engineers · Level II
$90,000–$94,999 band offered/yr · prevailing $75,000–$79,999 band
Lemont, IL · Apr 2026 → Apr 2029 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Nuclear Engineer
I-200-26022-582803
Certified, then withdrawnDecided Mar 5, 202617-2161.00 · Nuclear Engineers · Level II
$90,000–$94,999 band offered/yr · prevailing $75,000–$79,999 band
Lemont, IL · May 2026 → May 2029 · Full-time
Covers 1 position — 1 continued employment (renewal)
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Assistant Computer Scientist
I-200-25070-765740
Certified, then withdrawnDecided Mar 3, 202615-1221.00 · Computer and Information Research Scientists · Level II
$90,000–$94,999 band offered/yr · prevailing $75,000–$79,999 band
Lemont, IL · Apr 2025 → Apr 2028 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Postdoctoral Appointee
I-200-23311-485014
Certified, then withdrawnDecided Feb 26, 202619-2012.00 · Physicists · Level I
$65,000–$69,999 band offered/yr · prevailing $55,000–$59,999 band
Lemont, IL · Dec 2023 → Dec 2026 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Postdoctoral Appointee
I-200-24348-542702
Certified, then withdrawnDecided Feb 26, 202615-1221.00 · Computer and Information Research Scientists · Level I
$70,000–$74,999 band offered/yr · prevailing $55,000–$59,999 band
Lemont, IL · Jan 2025 → Jan 2028 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Postdoctoral Appointee
I-200-25164-090535
Certified, then withdrawnDecided Feb 26, 202619-2012.00 · Physicists · Level I
$70,000–$74,999 band offered/yr · prevailing $45,000–$49,999 band
Lemont, IL · Aug 2025 → Aug 2028 · Full-time
Covers 1 position — 1 new employment
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Nuclear Engineer
I-200-26041-632228
CertifiedDecided Feb 18, 202617-2161.00 · Nuclear Engineers · Level II
$90,000–$94,999 band offered/yr · prevailing $75,000–$79,999 band
Lemont, IL · Mar 2026 → Mar 2029 · Full-time
Covers 1 position — 1 amended petition
One position, so this filing is one identifiable person. The wage is shown as its $5,000 band, the dates to the month, and the street address is not published.
Every stored filing
All 51 stored filings, in one table. Positions and petition type sit side by side so a renewal never reads as a hire.
| Filing | Status | Occupation | Offered wage | Worksite | Employment period | Positions | Petition type |
|---|---|---|---|---|---|---|---|
| Postdoctoral AppointeeI-200-26078-715942 | CertifiedMar 26, 2026 | 17-2081.00 · Environmental EngineersLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Apr 2026 → Apr 2029 | 1 | 1 New employment |
| Nuclear EngineerI-200-26078-716470 | Certified, then withdrawnMar 26, 2026 | 17-2161.00 · Nuclear EngineersLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Apr 2026 → Apr 2029 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-23030-736113 | Certified, then withdrawnMar 19, 2026 | 19-2031.00 · ChemistsLevel I | $65,000–$69,999 band$5k band | Lemont, IL | Apr 2023 → Apr 2026 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-25307-362746 | Certified, then withdrawnMar 19, 2026 | 19-2031.00 · ChemistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Jan 2026 → Jan 2027 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-26064-682352 | CertifiedMar 12, 2026 | 15-1221.00 · Computer and Information Research ScientistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | May 2026 → May 2027 | 1 | 1 New employment |
| Nuclear EngineerI-200-26064-682437 | CertifiedMar 12, 2026 | 17-2161.00 · Nuclear EngineersLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Apr 2026 → Apr 2029 | 1 | 1 New employment |
| Nuclear EngineerI-200-26022-582803 | Certified, then withdrawnMar 5, 2026 | 17-2161.00 · Nuclear EngineersLevel II | $90,000–$94,999 band$5k band | Lemont, IL | May 2026 → May 2029 | 1 | 1 Continued employment (renewal) |
| Assistant Computer ScientistI-200-25070-765740 | Certified, then withdrawnMar 3, 2026 | 15-1221.00 · Computer and Information Research ScientistsLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Apr 2025 → Apr 2028 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-23311-485014 | Certified, then withdrawnFeb 26, 2026 | 19-2012.00 · PhysicistsLevel I | $65,000–$69,999 band$5k band | Lemont, IL | Dec 2023 → Dec 2026 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-24348-542702 | Certified, then withdrawnFeb 26, 2026 | 15-1221.00 · Computer and Information Research ScientistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Jan 2025 → Jan 2028 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-25164-090535 | Certified, then withdrawnFeb 26, 2026 | 19-2012.00 · PhysicistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Aug 2025 → Aug 2028 | 1 | 1 New employment |
| Nuclear EngineerI-200-26041-632228 | CertifiedFeb 18, 2026 | 17-2161.00 · Nuclear EngineersLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Mar 2026 → Mar 2029 | 1 | 1 Amended petition |
| Postdoctoral AppointeeI-200-23290-437523 | Certified, then withdrawnFeb 10, 2026 | 19-2012.00 · PhysicistsLevel I | $65,000–$69,999 band$5k band | Lemont, IL | Feb 2024 → Feb 2027 | 1 | 1 Continued employment (renewal) |
| Assistant Computer ScientistI-200-26022-582174 | CertifiedJan 29, 2026 | 15-1221.00 · Computer and Information Research ScientistsLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Mar 2026 → Mar 2029 | 1 | 1 New employment |
| Associate Energy Systems AnalystI-200-26022-582587 | CertifiedJan 29, 2026 | 17-2081.00 · Environmental EngineersLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Mar 2026 → Mar 2029 | 1 | 1 New employment |
| Associate Research ScientistI-200-26022-582669 | CertifiedJan 29, 2026 | 17-2144.00 · Mechanical Engineers, R&DLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Mar 2026 → Mar 2029 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-26022-582749 | CertifiedJan 29, 2026 | 15-1221.00 · Computer and Information Research ScientistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Apr 2026 → Apr 2029 | 1 | 1 New employment |
| Computer ScientistI-200-23261-355809 | Certified, then withdrawnJan 21, 2026 | 15-1221.00 · Computer and Information Research ScientistsLevel III | $95,000–$99,999 band$5k band | Lemont, IL | Nov 2023 → Nov 2026 | 1 | 1 Continued employment (renewal) |
| Predoctoral AppointeeI-200-25309-377551 | Certified, then withdrawnJan 21, 2026 | 15-1218.00 · Computer Systems Analysts, R&DLevel I | $65,000–$69,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 New employment |
| Assistant Beamline ScientistI-200-25357-505644 | CertifiedJan 2, 2026 | 17-2144.00 · Mechanical Engineers, R&DLevel III | $95,000–$99,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 Amended petition |
| Senior Scientific AssociateI-200-25357-505883 | CertifiedJan 2, 2026 | 17-2144.00 · Mechanical Engineers, R&DLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 Amended petition |
| Software EngineerI-200-25357-506007 | CertifiedJan 2, 2026 | 19-2012.00 · PhysicistsLevel III | $120,000–$124,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 Amended petition |
| Power Electronics EngineerI-200-25357-506073 | CertifiedJan 2, 2026 | 17-2074.00 · Electrical Engineers, R&DLevel III | $115,000–$119,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 Amended petition |
| Postdoctoral AppointeeI-200-25357-506172 | CertifiedJan 2, 2026 | 17-2144.00 · Mechanical Engineers, R&DLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 New employment |
| Principal Materials ScientistI-200-25350-486774 | CertifiedDec 23, 2025 | 19-2032.00 · Materials ScientistsLevel IV | $115,000–$119,999 band$5k band | Lemont, IL | Jan 2026 → Jan 2029 | 1 | 1 Amended petition |
| Assistant ChemistI-200-24290-411792 | Certified, then withdrawnDec 16, 2025 | 19-2031.00 · ChemistsLevel II | $80,000–$84,999 band$5k band | Lemont, IL | Jan 2025 → Jan 2028 | 1 | 1 Continued employment (renewal) |
| Assistant Computer ScientistI-200-25343-469592 | CertifiedDec 16, 2025 | 15-1221.00 · Computer and Information Research ScientistsLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Jan 2026 → Jan 2029 | 1 | 1 Amended petition |
| Predoctoral AppointeeI-200-25343-469719 | CertifiedDec 16, 2025 | 15-1218.00 · Computer Systems Analysts, R&DLevel I | $65,000–$69,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 New employment |
| Energy Systems AnalystI-200-25245-280272 | Certified, then withdrawnDec 11, 2025 | 17-2081.00 · Environmental EngineersLevel III | $90,000–$94,999 band$5k band | Lemont, IL | Oct 2025 → Oct 2028 | 1 | 1 Amended petition |
| Energy Systems AnalystI-200-25338-458706 | CertifiedDec 11, 2025 | 17-2081.00 · Environmental EngineersLevel III | $115,000–$119,999 band$5k band | Lemont, IL | Jan 2026 → Jan 2029 | 1 | 1 Amended petition |
| Specialist, Research Software EngineeringI-200-25325-429171 | CertifiedDec 1, 2025 | 15-1221.00 · Computer and Information Research ScientistsLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Dec 2025 → Aug 2027 | 1 | 1 Amended petition |
| Research ScientistI-200-25324-425930 | CertifiedNov 28, 2025 | 17-2144.00 · Mechanical Engineers, R&DLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Dec 2025 → Dec 2028 | 1 | 1 Amended petition |
| Mechanical EngineerI-200-25317-405185 | CertifiedNov 20, 2025 | 17-2144.00 · Mechanical Engineers, R&DLevel IV | $110,000–$114,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 Continued employment (renewal) |
| Materials ScientistI-200-25065-751293 | Certified, then withdrawnNov 18, 2025 | 19-2032.00 · Materials ScientistsLevel III | $105,000–$109,999 band$5k band | Lemont, IL | Mar 2025 → Mar 2028 | 1 | 1 Amended petition |
| Systems Analysis EngineerI-200-25307-359942 | CertifiedNov 14, 2025 | 17-2144.00 · Mechanical Engineers, R&DLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Dec 2025 → Dec 2028 | 1 | 1 Amended petition |
| Postdoctoral AppointeeI-200-25307-360467 | CertifiedNov 14, 2025 | 19-2012.00 · PhysicistsLevel I | $75,000–$79,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2027 | 1 | 1 Continued employment (renewal) |
| Assistant Software EngineerI-200-25307-361141 | CertifiedNov 14, 2025 | 15-1221.00 · Computer and Information Research ScientistsLevel II | $75,000–$79,999 band$5k band | Lemont, IL | Feb 2026 → Jan 2029 | 1 | 1 New employment |
| Assistant Computer ScientistI-200-25307-361336 | CertifiedNov 14, 2025 | 15-1221.00 · Computer and Information Research ScientistsLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Dec 2025 → Nov 2028 | 1 | 1 New employment |
| Predoctoral AppointeeI-200-25307-361664 | CertifiedNov 14, 2025 | 15-1221.00 · Computer and Information Research ScientistsLevel I | $60,000–$64,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2027 | 1 | 1 New employment |
| Assistant Beamline ScientistI-200-25307-362029 | CertifiedNov 14, 2025 | 19-2012.00 · PhysicistsLevel II | $95,000–$99,999 band$5k band | Lemont, IL | Jan 2026 → Jan 2029 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-25307-362293 | CertifiedNov 14, 2025 | 19-2032.00 · Materials ScientistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Mar 2026 → Feb 2029 | 1 | 1 New employment |
| Computational Transportation EngineerI-200-25307-362543 | CertifiedNov 14, 2025 | 17-2053.00 · Civil Engineers, R&DLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 New employment |
| Research ScientistI-200-25307-364741 | CertifiedNov 14, 2025 | 17-2144.00 · Mechanical Engineers, R&DLevel II | $105,000–$109,999 band$5k band | Lemont, IL | Feb 2026 → Feb 2029 | 1 | 1 Continued employment (renewal) |
| Target Development Research ProfessionalI-200-25308-371609 | CertifiedNov 14, 2025 | 19-2012.00 · PhysicistsLevel II | $95,000–$99,999 band$5k band | Lemont, IL | Mar 2026 → Mar 2029 | 1 | 1 Continued employment (renewal) |
| Postdoctoral AppointeeI-200-25309-376821 | CertifiedNov 14, 2025 | 15-2021.00 · MathematiciansLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Mar 2026 → Feb 2029 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-22307-567536 | Certified, then withdrawnNov 6, 2025 | 19-2031.00 · ChemistsLevel I | $60,000–$64,999 band$5k band | Lemont, IL | Dec 2022 → Dec 2025 | 1 | 1 Change of employer |
| Microfabrication TechnologistI-200-22342-629678 | Certified, then withdrawnNov 6, 2025 | 17-2199.09 · Nanosystems EngineersLevel III | $75,000–$79,999 band$5k band | Lemont, IL | Feb 2023 → Jan 2026 | 1 | 1 Continued employment (renewal) |
| Computational ScientistI-200-23229-274940 | Certified, then withdrawnNov 6, 2025 | 19-2032.00 · Materials ScientistsLevel II | $70,000–$74,999 band$5k band | Lemont, IL | Aug 2023 → Aug 2026 | 1 | 1 Change of employer |
| Postdoctoral AppointeeI-200-25035-665029 | Certified, then withdrawnNov 6, 2025 | 19-2012.00 · PhysicistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Mar 2025 → Mar 2028 | 1 | 1 New employment |
| Postdoctoral AppointeeI-200-25247-287132 | Certified, then withdrawnNov 6, 2025 | 19-2031.00 · ChemistsLevel I | $70,000–$74,999 band$5k band | Lemont, IL | Oct 2025 → Oct 2026 | 1 | 1 Amended petition |
| Materials EngineerI-200-25268-334798 | CertifiedNov 4, 2025 | 19-2032.00 · Materials ScientistsLevel II | $90,000–$94,999 band$5k band | Lemont, IL | Oct 2025 → Oct 2028 | 1 | 1 Amended petition |
Why some filings show a wage band instead of a salary
A filing covering a single position identifies one person. Those rows are published at reduced precision rather than dropped.
51 of the 51 filings shown cover exactly one worker position. A job title, a metro, an exact salary and an exact start date, published under an employer’s name, identify that individual to anyone who knows where they work — so those rows carry the $5,000 wage band instead of the salary, the month instead of the day, and no street address.
Filings covering two or more positions are shown in full: at least two workers share every attribute on the row by construction, which is precisely why they were filed together. Nothing is dropped either way — around nine in ten labor condition applications are single-position, and hiding them would misrepresent every employer’s activity by omission.
Each row above is one Labor Condition Application published by the US Department of Labor for UChicago Argonne, LLC as that name appears on the filing. A certified LCA is the employer’s wage and worksite commitment, and permission to petition USCIS — it is not a visa, not an approval, and not a job offer. Position counts are worker positions on the application, never a headcount. How these pages are built.