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Thomas John Nellessen

About me

The Nellessen Law Office is a Denver Colorado criminal defense law firm serving the Denver metropolitan area.  Specializing in DUI, drug cases, weapons cases and all other felony and misdemeanor matters, Thomas J. Nellessen and the Nellessen Law Office P.C., is here to serve your criminal defense representation needs.


Photos and videos

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Practice areas


  1. DUI & DWI: 40%
    24 years
  2. Violent Crime: 25%
    24 years
  3. Speeding & Traffic Ticket: 20%
    24 years
  4. Juvenile: 5%
    24 years


Payment types:

Cash, Check, Credit card

Attorney endorsements

3 total 

Are you an attorney? Endorse this lawyer

  • Michael Aaron Goldstein

    Attorney Thomas Nellessen is a dedicated professional who will aggressively fight for his clients. He is highly respected by his colleagues as well as current and former clients. He is an asset to our legal profession.


    Michael Goldstein Criminal Defense Attorney
    Relationship: Fellow lawyer in community

  • Benjamin William Hartford

    I endorse this lawyer. Tom is an experienced and well regarded trial lawyer who will both listen to you and work hard to achieve your goals as a client.


    Benjamin Hartford Criminal Defense Attorney
    Relationship: Friend

Contact info

Nellessen Law Office

1501 Wazee Street.
Suite 1-C
Denver, CO, 80202


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
OwnerNellessen Law Office1991 - Present
Association namePosition nameDuration
DUI Defense Lawyers AssociationMember2014 - Present
Colorado Bar AssociationMember1991 - Present
Colorado Criminal Defense Bar AssociationMember1991 - Present
School nameMajorDegreeGraduated
Northern Illinois University of LawLawJD - Juris Doctor1990