Andrew C. Porter

Partner Chicago
Phone: (312) 569-1364


Andrew C. Porter is a trial lawyer who takes a high-energy approach to all of his cases and defends his clients aggressively. Andrew is a member of Drinker Biddle’s White Collar Defense and Corporate Investigations team, and also works on complex commercial litigation matters. During his 15 years of public service as an assistant U.S. attorney in the U.S. Attorney’s Office for the Northern District of Illinois, Andrew led more than 100 investigations and tried more than 30 federal jury trials and two federal bench trials.

As an assistant U.S. attorney, Andrew investigated, prosecuted and supervised all aspects of federal criminal cases, including racketeering, securities fraud, money laundering, health care fraud and violent crime. Andrew’s understanding of how the government builds its cases gives him the best possible insight to prepare a successful defense. He is meticulous in getting ahead of the prosecution by learning all the relevant facts about his clients’ business, associates and issues and then successfully advocates for his client at every stage of the proceeding.

For the majority of his time at the U.S. Attorney’s Office, Andrew served as a supervisor, overseeing and training dozens of assistant U.S. attorneys on the successful investigation and prosecution of more than 1,000 defendants. He also served as the U.S. Attorney’s Office Gang Coordinator, overseeing gang investigations and collaborating with state and federal law enforcement partners to efficiently tackle gang-related crime. This work required leadership skills, sensitive communication, thorough investigations, and the cultivation of relationships with people from all walks of life.

Andrew has lectured on federal racketeering at Northwestern University School of Law and previously taught trial advocacy at the National Advocacy Center at the Department of Justice.


Since his return to private practice in 2014, Andrew has:

  • Convinced the Department of Justice to forego prosecution in a tax fraud investigation involving claimed unreported income of over $1,000,000.
  • Prevailed on all counts in a week-long bench trial representing a defendant facing multiple felonies.
  • Represented multiple entities and individuals in grand jury proceedings without charges being brought.
  • Conducted several internal investigations for public and private entities.
  • Served as lead trial lawyer in a $10M+ fraud action that settled immediately prior to trial.
  • Served as lead trial lawyer in multiple, ongoing trade secrets, breach of contract, and civil fraud actions across the United States.

While an assistant U.S. attorney in the U.S. Attorney's Office for the Northern District of Illinois, Andrew:

  • Led the investigation and highly publicized prosecution of more than 100 Chicago Latin King gang members and their associates. Gang members were convicted of crimes including racketeering, extortion, murder and drug trafficking.
  • Oversaw the investigation and prosecution of an executive convicted of wire fraud and perjury for his sale of almost $1 million in fraudulent securities to multiple suburban Chicago investors.
  • Oversaw the investigation and prosecution two executives of a home health care company convicted of health care fraud.
  • Oversaw the investigation and prosecution of an auto executive convicted of mail and wire fraud in connection with the $11 million purchase of an auto dealership in Gurnee, Illinois. The case was built on both covert and open communications with people associated with the accused, as well as a concrete understanding of industry regulations.
  • Worked on the prosecution of former Chicago Alderman Edward Vrdolyak, who was convicted of wire and mail fraud in connection with the multimillion-dollar sale of property in Chicago.
  • Worked on the prosecution of multiple executives of a publicly traded distributor of wire and cable products convicted of securities fraud in connection with a more than $20 million accounting fraud designed to artificially inflate the company’s financial records.
  • Worked on the prosecution of City of Chicago building inspectors convicted of receiving bribes in exchange for consideration in the enforcement of the Chicago Building Code, a government corruption case.


Bar Admissions

  • Illinois


  • Northwestern University School of Law, J.D., cum laude, Order of the Coif, Northwestern University Law Review – Editor-in-Chief
  • Illinois Wesleyan University, B.A., summa cum laude

Court Admissions

  • U.S. Court of Appeals, Seventh Circuit
  • U.S. District Court, Northern District of Illinois
  • U.S. District Court, Northern District of Iowa
  • U.S. District Court, Western District of Texas
  • U.S. District Court, Eastern District of Wisconsin


  • American Bar Association
  • Chicago Council of Lawyers
  • Federal Bar Association