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About me

     The uniquely broad background experience of William Portanova provides a legal edge few other attorneys can offer.  Before entering private practice, Portanova served for many years as an Assistant United States Attorney, federally prosecuting complex cases in the areas of organized crime, narcotics, computer crime and all manner of white collar crime.  Prior to that, he served for several years as a Deputy District Attorney in Sacramento County, prosecuting all types of crimes from misdemeanors to murders.


      From 1991 to 1997, he directed the Organized Crime and Drug Enforcement Task Force and helped form one of the first state and federal High Tech Crimes Task Forces in California.  For his accomplishments, Portanova received the U.S.  Department of Justice Director’s Award in 1993.  


     Shifting from public prosecutor to private defender in 1997, he has since devoted his expertise to tough advocacy on behalf of clients accused of white collar crime.  

     Throughout California, Portanova has successfully represented businesses and individuals caught up in the criminal justice system.  His experience and accomplishments from both sides of the counsel table provide him with an exceptionally complete understanding of every case from every perspective.


     William Portanova is frequently asked to contribute as a legal analyst for local and national media outlets on various pending legal matters.


Photos and videos

191987 1361307588

Practice areas


  1. White Collar Crime: 90%
    34 years, 500 cases
  2. Criminal Defense: 10%
    34 years, 500 cases



Free consultation (30 minutes)

Payment types:

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Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • David Allen Brooks

    I endorse Bill. He is highly experienced.


    David Brooks Criminal defense Attorney
    Relationship: Fellow lawyer in community

  • Joseph E Maloney

    I endorse this lawyer. Bill Portanova is one of the most prominent and effective criminal lawyers the Sacramento area has ever seen.


    Joseph Maloney Employment and labor Attorney
    Relationship: Co-worker

Contact info

William J. Portanova, Attorney at Law

400 Capitol Mall Suite 1100
Sacramento, CA, 95814


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
Assistant United States AttorneyUnited States Attorney's Office1991 - 1997
Deputy District AttorneySacramento County District Attorney1982 - 1991
Association namePosition nameDuration
National Association of Criminal Defense LawyersN/A2000 - Present
School nameMajorDegreeGraduated
McGeorge School of Law, University of the PacificLawJD - Juris Doctor1982
California State UniversityN/ABA - Bachelor of Arts1977