H-1B sponsorship profile: Korro Bio, Inc. Across U.S. Department of Labor LCA disclosures, Korro Bio, Inc filed 2 Labor Condition Applications covering 2 H-1B worker positions between fiscal year 2025 and fiscal year 2025. The employer’s DOL certification rate sits at 100% (2 certified of 2 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 Korro Bio, Inc’s H-1B petitions range from $130,000 at the low end to $157,394 at the high end, with a petition-weighted average of $143,697. That range reflects the mix of occupations the company sponsors, led by Scientist, Oligonucleotide Chemistry (1 petitions at $130,000 avg), followed by Associate Director, FP&A Finance. 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. Korro Bio, Inc is headquartered in Cambridge, MA under NAICS code 54171, and places H-1B workers across 1 state, most heavily in MA. 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 Korro Bio, Inc ranks. By H-1B petition volume, Korro Bio, Inc is #48,558 of 119,880 employers nationally and #2,213 of 5,193 employers headquartered in MA. Both ranks are computed live from the same underlying petition counts, not a separate estimate.