Question 1

Does Sigma-Aldrich RTC, Inc. sponsor H-1B visas?

Accepted Answer

Yes. Sigma-Aldrich RTC, Inc. has filed 3 H-1B Labor Condition Applications (LCAs) with the Department of Labor, covering 3 total positions across 2 states. The median salary for Sigma-Aldrich RTC, Inc.'s sponsored positions is $67,000.

Question 2

What H-1B salary does Sigma-Aldrich RTC, Inc. pay?

Accepted Answer

Sigma-Aldrich RTC, Inc. pays a median H-1B salary of $67,000 for sponsored positions. Employers are required to pay H-1B workers at least the prevailing wage set by the DOL for the occupation and area. The wage level distribution on this page shows how Sigma-Aldrich RTC, Inc.'s positions break down across entry-level (Level I) through expert (Level IV) roles.

Question 3

Does Sigma-Aldrich RTC, Inc. also sponsor green cards?

Accepted Answer

Based on public DOL records, Sigma-Aldrich RTC, Inc. does not appear to have filed PERM labor certification applications for green card sponsorship.

Question 4

What do the H-1B wage levels mean?

Accepted Answer

The DOL assigns prevailing wages at four levels based on the complexity of the job and experience required. Level I (Entry) is set at the 17th percentile of wages for the occupation and area. Level II (Qualified) is at the 34th percentile. Level III (Experienced) is at the 50th percentile (median). Level IV (Expert) is at the 67th percentile. Higher wage levels indicate more senior positions and are viewed more favorably in H-1B petition adjudication.

Question 5

Is Sigma-Aldrich RTC, Inc. an H-1B dependent employer?

Accepted Answer

No, Sigma-Aldrich RTC, Inc. is not classified as an H-1B dependent employer. An employer is considered H-1B dependent when 15% or more of its workforce holds H-1B visas.

Year	Filings	Certified
2025	1	1
2024	1	1
2019	1	1

Job Title	Salary	Location	Filed	Status
Scientist, Quality Control I-200-25197-179706	$75,000	Round Rock, TX	Jul 16, 2025	Certified
Scientist, Quality Control I-200-24101-871933	$67,000	Laramie, WY	Apr 10, 2024	Certified
SUPERVISOR LS QUALITY I-200-19043-389869	$63,130	Laramie, WY	Feb 15, 2019	Certified

Sigma-Aldrich RTC, Inc. — H-1B Visa Sponsorship Data

Sigma-Aldrich RTC, Inc. LCA & H1B Filings

Certified Filings by Quarter

All LCA Filings

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