As printed in DOL's files
Who files the most PERM cases
Every PERM filing names the firm that made it. All 3,514 of them, with volume, approval rate and median days.
The ten busiest firms
FRAGOMEN, DEL REY, BERNSEN & LOEWY, LLP
Berry Appleman & Leiden LLP
Ogletree, Deakins, Nash, Smoak & Stewart, P.C.
Corporate Immigration Partners, P.C.
Ruby Law Group LLC
Vialto Partners LLP
Momentum Immigration
Musillo Unkenholt, LLC
Erickson Immigration Group
EY Law LLP
Approval rates cluster above 99% across every firm on this list, so the ranking is by volume alone.
All 3,514 firms
Spellings that differ by punctuation, a legal suffix or a single mistyped letter are pooled, so a practice DOL prints several ways counts once. Spellings that differ by more than that stay separate, and each firm's page lists the ones near it. Filter by the state the firm files from.
Showing the top 250 of 3,514 law firms. Search or sort to read all of them.
Browse A to Z
The table above sorts by volume. This sorts by name: 3,514 law firms with a page of their own, split across 26 letters and one bucket for the names that start with a number. The full A-Z index gives the count behind each letter.
Running a PERM practice?
Benchmark your own volume and median against the field, then track the deadlines on every case. Free account.
Checking on your firm?
A firm's median sits near the national one because DOL works a single queue. Your own date comes from your filing month, on the decision estimator.
The basics
What does the law firm on a filing actually do?
The firm named on a PERM filing represents the employer, not the worker - which is why applicants so often hear nothing. Your case number still works without them: check it yourself, free.
Do approval rates differ much between firms?
Less than the rankings suggest: across the whole list they cluster above 99% in the FY2024-FY2026 window. One caution stated on every firm page: DOL prints a single practice under several spellings, so a big firm's true total can span more than one row.
Case data: DOL quarterly disclosure files (flag.dol.gov) · data through Jun 30, 2026 · quarterly
Employers and firms: Derived from the disclosure corpus · data through Aug 26, 2026 · rebuilt with each quarterly ingest