Sidley Austin

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Sidley Austin is a law firm providing legal advisory services to healthcare, energy, communications, insurance, healthcare, and food industries. It focuses on areas such as trademarks and copyrights, corporate finance, unfair competition, workplace privacy, litigation and dispute resolution, lender liability, conflict management, antitrust, intellectual property rights, immigration, and more.

HQChicago, US
Employee Ratings4.3

Latest Updates

Employees (est.) (Sept 2020)4,112
Job Openings7
Revenue (Y, 2019)$2.3 B(+6%)
Cybersecurity ratingBMore

Key People/Management at Sidley Austin

Timothy F. Bergen

Timothy F. Bergen

Executive Director
Christopher C. Fonzone

Christopher C. Fonzone

Michael S. Mork

Michael S. Mork

Chief Financial Officer
Scott L. Kilburg

Scott L. Kilburg

Chief Marketing Officer
Vince Marin

Vince Marin

Chief Information Officer
Anne M. Falvey

Anne M. Falvey

Chief Knowledge Officer
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Sidley Austin Office Locations

Sidley Austin has offices in Chicago, Boston, Dallas, Houston and in 15 other locations
Chicago, US (HQ)
1 S Dearborn St
Boston, US
60 State St 36TH FLOOR
Dallas, US
2021 McKinney Ave #2000
Houston, US
Wells Fargo Plaza, 1000 Louisiana St #5900
Los Angeles, US
555 W 5th St
Los Angeles, US
SunAmerica Center, 1999 Avenue of the Stars 17TH FLOOR
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Sidley Austin Financials and Metrics

Summary Metrics

Founding Date

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Sidley Austin Revenue

Sidley Austin's revenue was reported to be $2.34 b in Y, 2019 which is a 5.3% increase from the previous period.

Revenue (Y, 2019)


Revenue growth (Y, 2018 - Y, 2019), %

USDY, 2014Y, 2015Y, 2016Y, 2017Y, 2018Y, 2019



Revenue growth, %

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Sidley Austin Operating Metrics

Y, 2014Y, 2015Y, 2016Y, 2017Y, 2018Y, 2019

Total Lawyers

1.76 k1.78 k1.84 k1.87 k1.94 k1.92 k

Revenue per Lawyer

$995 k$1.05 m$1.05 m$1.09 m$1.14 m$1.22 m


306 342 346 343 334 313

Profits per Equity Partner

$1.99 m$2.07 m$2.13 m$2.26 m$2.55 m$2.82 m
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Sidley Austin Cybersecurity Score

Cybersecurity ratingPremium dataset



SecurityScorecard logo

Sidley Austin Online and Social Media Presence

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Sidley Austin News and Updates

Sidley Austin hires New York funds duo

Chicago-headquartered Sidley Austin has poached investment funds partners Nathan Greene and Jay Baris from Shearman & Sterling.

Sidley Austin welcomes new global finance partner in New York

Law firm Sidley Austin has hired Joshua Thompson as a partner in its global finance group in New York.

Sidley Austin Hires Kirkland’s Data Privacy Co-Leader

Sidley Austin has hired Brian Kavanaugh, the former co-leader of Kirkland & Ellis’ data privacy practice, as a litigation partner in its Chicago office.

Sidley Austin Names New Diversity Officer

Sidley Austin has named Maria D. Melendez as its chief diversity officer, taking the reins of the firm’s efforts to increase diversity and inclusion.

Skadden Arps and Sidley Austin lead USD 1 billion acquisition of AI powered cybersecurity specialist

Seattle-headquartered application and delivery services company F5 Networks has completed an approximate USD 1 billion acquisition of Shape Security, an artificial intelligence (AI)-powered cybersecurity, fraud and abuse protection provider.

Sidley Austin expands China corporate practice

Sidley Austin announced that Meng Ding has joined the firm in Hong Kong as a partner in its China corporate and finance group.
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Sidley Austin Blogs

Fifth Circuit Affirms Dismissal of FCA Case Based on Inadequate Pleading of Upcoded Claims

On May 28, 2020, the United States Court of Appeals for the Fifth Circuit affirmed the dismissal with prejudice of a False Claims Act suit brought against Baylor Scott & White Health (“Baylor”), a network of acute care hospitals.  The suit, brought by Integra Med Analytics, alleged that Baylor s…

DOJ Updates Guidance on Evaluating Corporate Compliance Programs

On June 1, 2020, the Criminal Division of the U.S. Department of Justice (DOJ) publicized an updated version of its “Evaluation of Corporate Compliance Program” guidance. This is the third version of the document, with the DOJ having issued the guidance in 2017 (which we analyzed here) and revised i…

Senator Grassley Pushes Back on DOJ’s View of Its Right to Seek to Dismiss FCA Actions over Relators’ Objections

In a May 4, 2020 letter to Attorney General William Barr, Senator Chuck Grassley “vehemently” disagreed with the Department of Justice’s (“DOJ”) view, expressed in a brief recently filed with the Supreme Court by the Solicitor General, that the DOJ’s authority to dismiss an FCA claim “is an unreview…

Clinical Laboratory to Pay $43 Million to Resolve FCA Liability for Medically Unnecessary Tests; Settlement Demonstrates Importance of Addressing Employee Compliance Concerns

A specialty laboratory recently agreed to pay up to $43 million to resolve FCA claims based on allegations raised internally and later in a whistleblower complaint filed by its former Chief Medical Officer (CMO). The defendant, Genova Diagnostics Inc. (“Genova”), provides laboratory testing services…

Ninth Circuit Holds That the FCA Does Not Require Objective Falsehoods and That False Certification of Medical Necessity May Give Rise to FCA Liability

On March 23, 2020, the Ninth Circuit revived a whistleblower suit in which Jane Winter, a registered nurse, alleged that Defendants Gardens Regional Hospital (“Gardens Regional”), S&W Health Management Services (“S&W Health”), RollinsNelson, and various physicians orchestrated medically unne…

DOJ Declines to Intervene in Risk Adjustment Qui Tam Suit Brought Against Numerous Medicare Advantage Plans

On March 6, 2020, the United States District Court for the Central District of California unsealed a qui tam complaint filed in May 2018 against Mobile Medical Examination (“MedXM”) and a number of Medicare Advantage Organizations (“MAOs), including, United Healthcare, Wellpoint, Aetna, Health Net, …
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Sidley Austin Frequently Asked Questions

  • When was Sidley Austin founded?

    Sidley Austin was founded in 1866.

  • Who are Sidley Austin key executives?

    Sidley Austin's key executives are Timothy F. Bergen, Christopher C. Fonzone and Michael S. Mork.

  • How many employees does Sidley Austin have?

    Sidley Austin has 4,112 employees.

  • What is Sidley Austin revenue?

    Latest Sidley Austin annual revenue is $2.3 b.

  • What is Sidley Austin revenue per employee?

    Latest Sidley Austin revenue per employee is $568.5 k.

  • Who are Sidley Austin competitors?

    Competitors of Sidley Austin include Mayer Brown, Clifford Chance and DLA Piper.

  • Where is Sidley Austin headquarters?

    Sidley Austin headquarters is located at 1 S Dearborn St, Chicago.

  • Where are Sidley Austin offices?

    Sidley Austin has offices in Chicago, Boston, Dallas, Houston and in 15 other locations.

  • How many offices does Sidley Austin have?

    Sidley Austin has 21 offices.