H-1B sponsorship profile: Sigma-Aldrich Co LLC. Across U.S. Department of Labor LCA disclosures, Sigma-Aldrich Co LLC filed 5 Labor Condition Applications covering 5 H-1B worker positions between fiscal year 2023 and fiscal year 2025. The employer’s DOL certification rate sits at 100% (5 certified of 5 filed), a useful proxy for how cleanly their prevailing-wage attestations pass the Labor Department’s preliminary review before USCIS adjudication.

Compensation spread. Offered wages on Sigma-Aldrich Co LLC’s H-1B petitions range from $73,000 at the low end to $85,000 at the high end, with a petition-weighted average of $78,600. That range reflects the mix of occupations the company sponsors, led by Software Regulation Subject Matter Expert (1 petitions at $85,000 avg), followed by R&D Scientist I – Catalysis and R&D Scientist - Process Chemistry. H-1B salaries reported on LCAs must meet or exceed the DOL prevailing wage for the role and worksite, so the spread also tracks wage-level geography and seniority.

Geographic footprint. Sigma-Aldrich Co LLC is headquartered in Burlington, MA under NAICS code 54171, and places H-1B workers across 2 states, most heavily in WI, MO. Combined, these signals give a granular view of how one employer uses the H-1B program, volume, approval cleanliness, wage posture, and where the jobs actually sit on the map.

Where Sigma-Aldrich Co LLC ranks. By H-1B petition volume, Sigma-Aldrich Co LLC is #26,547 of 119,880 employers nationally and #1,208 of 5,193 employers headquartered in MA. Both ranks are computed live from the same underlying petition counts, not a separate estimate.