The RegistryState Bar Practice Area · Surnames O
Environmental Law Attorneys in California, Surnames O
78 attorneys with an active California license whose State Bar record lists “Environmental Law” as a practice area and whose surname begins with O. Practice areas on the record are self-reported; listings are in surname order, neutral, never ranked. The choice is always yours.
Environmental Law · surnames O
| Attorney | Firm | City | Bar number | Admitted |
|---|---|---|---|---|
| Danielle F. O'Bannon | DOJ-Office of the Attorney General | Oakland | #207095 | 2000 |
| Brett H. Oberst | Alston & Bird | Los Angeles | #196219 | 1998 |
| Indrajit Obeysekere | Not recorded | Orinda | #133969 | 1988 |
| Paul R. O'Boyle | Not recorded | San Diego | #175944 | 1995 |
| Samuel C. O'Braitis | Legendary Entertainment | Burbank | #336760 | 2021 |
| Kelly A. Obranowicz | California Air Resources Board | Sacramento | #307172 | 2015 |
| Bradley R. O'Brien | Not recorded | Sausalito | #189425 | 1997 |
| Colin C. O'Brien | Earthjustice | San Francisco | #309413 | 2016 |
| Kevin M. O'Brien | Not recorded | Carmel | #122713 | 1986 |
| Hazel Ocampo Nunez | Greenberg Traurig LLP | San Diego | #281624 | 2011 |
| Angelica Ochoa | Mountains Recreation & Conservation Auth | Los Angeles | #293380 | 2013 |
| Edward H. Ochoa | Not recorded | San Diego | #144842 | 1989 |
| Michael J. O'Connell | Law Office of Michael J. O'Connell | San Francisco | #227235 | 2003 |
| Elise M. O'Dea | US Environmental Protection Agency | Washington | #307768 | 2015 |
| Eileen E. Odell | CPUC | San Francisco | #280398 | 2011 |
| Cory W. O'Donnell | Sonoma County Counsel | Santa Rosa | #186425 | 1996 |
| Stephanie C. Oehler | US Environmental Protection Agency | San Francisco | #329761 | 2019 |
| Kathryn L. Oehlschlager | Stoel Rives LLP | San Francisco | #226817 | 2003 |
| Andrew S. Oelz | Akin Gump et al | Los Angeles | #216885 | 2001 |
| Sarah M. O'Farrell | Covington & Burling LLP | San Francisco | #363982 | 2025 |
| Tatev Oganyan | The Oganyan Agency | Newport Beach | #320344 | 2018 |
| Andrew Gibson Ogden | Not recorded | Boulder | #112384 | 1983 |
| Sevana Z. Ohanian | CA Dept of Transportation | Los Angeles | #248984 | 2007 |
| Daniel Joseph O'Hanlon | Kronick Moskovitz et al | Sacramento | #122380 | 1985 |
| Richard C. O'Hare | Messner Reeves LLP | San Jose | #167960 | 1993 |
| Omonigho Oiyemhonlan | Bay Area Air Quality Management District | San Francisco | #331053 | 2020 |
| Mayumi E. Okamoto | State Water Resources Control Board | Sacramento | #253243 | 2007 |
| Michael A. Okaty | Foley & Lardner LLP | Orlando | #314668 | 2017 |
| Lori T. Okun | State Water Resources Control Board | Sacramento | #137537 | 1988 |
| Timothy O'Laughlin | Tim O'Laughlin A Professional Law Corp | Sacramento | #116807 | 1984 |
| Shannon K. Oldenburg | Southern California Edison | Rosemead | #228023 | 2003 |
| Daniel A. Olivas | CA DOJ | Los Angeles | #130405 | 1987 |
| Chad Oliver | California Energy Commission | Sacramento | #346599 | 2022 |
| Derric G. Oliver | Fenton & Keller | Monterey | #290439 | 2013 |
| Nicolas R. Oliver | Western Resource Advocates | Reno | #313162 | 2016 |
| John C. Olson Jr. | Not recorded | Clarksville | #238947 | 2005 |
| Julia A. Olson | Our Children's Trust | Eugene | #192642 | 1997 |
| Samantha K. Olson | SWRCB | Sacramento | #215789 | 2001 |
| Todd Gregory Olson | Todd G Olson, Attorney at Law | Conway | #117160 | 1984 |
| Grant R. Olsson | Environmental Law Group LLP | San Diego | #317583 | 2017 |
| Deji B. Olukotun | Sonos | Goleta | #235412 | 2005 |
| Matthew J. O'Malley | Not recorded | San Diego | #272802 | 2010 |
| Taylor A. O'Neal | Baron & Budd, P.C. | San Diego | #336077 | 2021 |
| Stephen J. O'Neil | Sheppard Mullin et al | Los Angeles | #127120 | 1986 |
| Scott W. O'Neill | Jim Falk Automotive Group | Lahaina | #132461 | 1987 |
| Steven P. O'Neill | Aleshire and Wynder, LLP | Westlake Village | #143075 | 1989 |
| Tessa A. Opalach | Mayer Brown | San Francisco | #340745 | 2021 |
| Oshea V. Orchid | Sethi Orchid Miner LLP | Castaic | #298375 | 2014 |
| Tracey L. O'Reilly | Miller & Axline | Sacramento | #206230 | 2000 |
| Juan-Carlos Orellana | Santa Clara Valley Water District | San Jose | #233403 | 2004 |
| Deborah K. Ores | State Water Resources Control Board | Sacramento | #295067 | 2013 |
| Madeline J. Orlando | Greenberg Traurig LLP | Sacramento | #337460 | 2021 |
| Robert M. Ornstein | Robert M. Ornstein, Esq. | Ojai | #52088 | 1972 |
| Maria J. Oropeza | State Bar Of California | San Francisco | #182660 | 1996 |
| Grecia R. Orozco | Center on Race,Poverty,& the Environment | Delano | #345881 | 2022 |
| Jeffrey T. Orrell | Brown & Winters | Cardiff | #237581 | 2005 |
| Patricia E. Ortega | Somos Group | Los Angeles | #362638 | 2025 |
| Rene A. Ortega | Shute, Mihaly & Weinberger LLP | San Francisco | #308877 | 2016 |
| Julie M. Osborn | State Water Resources Control Board | Sacramento | #233923 | 2004 |
| David Leon Osias | Allen Matkins | San Diego | #91287 | 1979 |
| Hari M. Osofsky | Northwestern Pritzker School of Law | Chicago | #205592 | 1999 |
| Natalia Ospina | Center on Race, Poverty and the Environm | Delano | #308561 | 2016 |
| David A. Ossentjuk | Ossentjuk & Botti | Westlake Village | #130384 | 1987 |
| Mark Anthony Ostoich | Ostoich Law Office | Palm Springs | #62323 | 1974 |
| Chelsea E. O'Sullivan | Richards Watson Gershon | San Luis Obispo | #308369 | 2015 |
| Jesse M. O'Sullivan | Not recorded | San Diego | #329634 | 2019 |
| Bryan M. Otake | Metropolitan Water District | Los Angeles | #200427 | 1998 |
| Victoria Oto | Not recorded | Pleasant Hill | #348912 | 2023 |
| Patricia Michele O'Toole | The O'Toole Law Firm | Los Angeles | #107192 | 1982 |
| Victor J. Otten | Otten Law Group, APC | Tustin | #165800 | 1993 |
| Douglas Wilson Otto | Law Offices of Douglas W. Otto | Long Beach | #82595 | 1978 |
| Peggy O. Otum | Wilmer Hale Cutler Pickering & Dorr | San Francisco | #302949 | 2015 |
| Cheyenne J. Overall | Kirkland & Ellis | San Francisco | #327242 | 2019 |
| David R. Owen | UC Law San Francisco | San Francisco | #222314 | 2002 |
| Robert O. Owen | Rutan & Tucker LLP | Irvine | #126105 | 1986 |
| Sarah E. Owsowitz | Best Best & Krieger LLC | Walnut Creek | #202783 | 1999 |
| Stephanie L. Oxley | Bay Area Air Quality Management District | San Francisco | #245351 | 2006 |
| Jasper L. Ozbirn | Ozbirn Law & Mediation, P.C. | Santa Barbara | #265836 | 2009 |
Environmental Law attorneys, A to Z
Surnames A163 attorneysSurnames B359 attorneysSurnames C316 attorneysSurnames D193 attorneysSurnames E82 attorneysSurnames F169 attorneysSurnames G243 attorneysSurnames H300 attorneysSurnames I27 attorneysSurnames J106 attorneysSurnames K205 attorneysSurnames L217 attorneysSurnames M414 attorneysSurnames N96 attorneysSurnames O78 attorneysSurnames P191 attorneysSurnames Q17 attorneysSurnames R199 attorneysSurnames S431 attorneysSurnames T153 attorneysSurnames U13 attorneysSurnames V59 attorneysSurnames W240 attorneysSurnames Y34 attorneysSurnames Z38 attorneys
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