Updated
Law firms beginning with O
70 of the 5,571 law firms with a page here, 1.3% of them. The busiest is Ogletree, Deakins, Nash, Smoak & Stewart, P.C. with 10,007 filings; the smallest carry 1. Every name is DOL's own spelling from the disclosure files.
All 70, alphabetically
Each number is the PERM cases DOL's current files record for that law firm.
- O'BRIEN AND ASSOCIATES 5
- O'Brien Law LLC 4
- O'Donoghue Law, LLC 60
- O'Neil Hauser Mansfield, PC 1
- Oasis Legal Group 2
- Obermayer Rebmann Maxwell & Hippel LLP 10
- OC Law Group LLC 58
- Odeh Law Group 2
- Oduneye Law Firm, PLLC 1
- Offit Kurman PA 39
- OGC Solutions LLP 1
- OGC Solutions LLP (f/k/a Santomassimo Davis LLP) 1
- Ogletree Deakins 1,086
- Ogletree Deakins Law Firm 507
- Ogletree, Deakins et. al. 7
- OGLETREE, DEAKINS, NAHS, SMOAK & STEWART, P.C. 1
- Ogletree, Deakins, Nash, et. al., P.C. 6
- Ogletree, Deakins, Nash, Smoak & Stewart, P.C. 10,007
- Ogletree, Deakins, Nash, Smoak Steward, P.C. 2
- Ogletree, Deakins, Nash, Stewart Smoak, P.C. 2
- Ogletree, Deakins, Nashlt; Smoak Stewart, P.C. 1
- OGMEN LAW PLLC 27
- Ogolo and Associates 3
- Oguz Law 40
- OjalaBarbour Law Firm PLLC 2
- Oke Legal Group 87
- Oke Legal Groyp 1
- Okelegalgroup@gmail.com 1
- OKORIE-ERIC LAW GROUP LLC. 96
- OLALEYE LAW FIRM, LLC 7
- Olender 5
- Olga Y. Zullig, Attorney At Law, LLC 40
- Olga Y. Zullig, Atty At Law LLC 1
- Oliva Saks Garcia and Curiel PLLC 7
- Olivo Immigration Law PC 1
- Olmos and Reynolds Law Group LLP 3
- Olson & Ishizuka Law Offices PC 7
- Olson Immigration Law, PLLC 6
- Oltarsh and Associates P.C. 2
- OLUBUNMI LAW PLLC 1
- OMalley Associates 1
- OMI-PRO ADVISORY INC 1
- Onal Gallant and Partners 49
- ONAL GALLANT BAYRAM AND AMIN PC 17
- Onan Associates 11
- One Call Staffing, Inc. 29
- ONeil Hauser, PC 1
- ONUSES LLC 1
- Opcion Migratoria LLC 17
- Orbit Law, PLLC 12
- OREILLY BURTON LLP 1
- Origin Law, P.C. 10
- Orion APC 1
- Orner Law, LLC 5
- Orr & Reno 76
- Orrick, Herrington & Sutcliffe LLP 10
- Ortega Tauler & Associates PA 2
- Ortega-Medina and Associates 1
- ORTEGA, CANOSSA & ASSOCIATES PLC 1
- Ortus Consulting Inc 9
- Ortus Law Firm, P.C. 4
- OsimeLaw PLLC 1
- Ostrom Law Office, LLC 52
- Outside GC LLC 14
- Owen Gu Law Group, P.C. 1
- Owji Law Group 29
- Ozek Law Firm, LLC 14
- Ozisik, PLLC 170
- Ozment Law, PLC 85
- Ozturk Law Office 9
Looking for one in particular?
The ranked table searches every law firm in the corpus, including the ones too small for a page of their own.
Holding a case number?
A case lookup reads DOL's live record for one case, which is a different and fresher source than the counts on this page.
Employers and firms: Derived from the disclosure corpus · data through Aug 26, 2026 · rebuilt with each quarterly ingest
Case data: DOL quarterly disclosure files (flag.dol.gov) · data through Jun 30, 2026 · quarterly
What each source includes
Employers and firms: Employers, law firms and occupations ranked from decided cases only.
Case data: Decided PERM cases only. A case still waiting isn't in here, so counts and durations describe finished cases.
Cite this page
Waiting on a PERM case?
- When it'll likely be decided
- An email when DOL moves it