H-1B sponsorship profile: Koppers Inc. Across U.S. Department of Labor LCA disclosures, Koppers Inc filed 6 Labor Condition Applications covering 6 H-1B worker positions between fiscal year 2024 and fiscal year 2025. The employer’s DOL certification rate sits at 100% (6 certified of 6 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 Koppers Inc’s H-1B petitions range from $55,349 at the low end to $138,907 at the high end, with a petition-weighted average of $105,302. That range reflects the mix of occupations the company sponsors, led by Enterprise Applications Manager (2 petitions at $138,907 avg), followed by Purchasing Analyst and Process Engineer. 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. Koppers Inc is headquartered in Pittsburgh, PA under NAICS code 335991, and places H-1B workers across 2 states, most heavily in PA, IL. 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 Koppers Inc ranks. By H-1B petition volume, Koppers Inc is #23,486 of 119,880 employers nationally and #709 of 3,282 employers headquartered in PA. Both ranks are computed live from the same underlying petition counts, not a separate estimate.