H-1B sponsorship profile: Mainspring Staffing Services LLC. Across U.S. Department of Labor LCA disclosures, Mainspring Staffing Services LLC 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 50% (1 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 Mainspring Staffing Services LLC’s H-1B petitions range from $90,376 at the low end to $90,376 at the high end, with a petition-weighted average of $90,376. That range reflects the mix of occupations the company sponsors, led by Director of Nursing Services (2 petitions at $90,376 avg). 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. Mainspring Staffing Services LLC is headquartered in ABINGTON, MA under NAICS code 561311, 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 Mainspring Staffing Services LLC ranks. By H-1B petition volume, Mainspring Staffing Services LLC 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.