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Sidley Austin

Global law firm with cross-border expertise

Overview

Sidley Austin is a global law firm with about 2,300 lawyers and 160 years of experience. It helps clients handle complex transactional work, restructurings, crisis management, investigations, regulatory matters, and litigation. The firm serves clients through 21 offices located in major business and financial centers around the world, with lawyers fluent in more than 75 languages and deep cross-border knowledge. Its approach focuses on delivering clear, practical legal strategies that fit each client’s needs in a changing global market. The firm differentiates itself through extensive international reach, long-standing experience handling high-stakes matters, and a team capable of coordinating cross-border advice across multiple jurisdictions. Sidley’s goal is to achieve powerful results for clients by applying disciplined, globally informed legal strategies to complex problems.

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About Sidley Austin

Simplify's Rating
Why Sidley Austin is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Legal

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Chicago, IL

Founded

1866

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What believers are saying

  • October 30, 2026 hire Elaine Whiteford strengthens London competition litigation immediately.
  • October 13, 2026 Torrey Pines lease signals sustained California growth and client demand.
  • Sidley’s decade-long revenue growth supports hiring, expansion, and premium-market compensation.

What critics are saying

  • Magic Circle rivals and U.S. elite firms fight for the same antitrust and disputes mandates.
  • San Diego growth to 60-plus lawyers by 2028 strains integration, pricing, and manager attention.
  • Heavy dependence on marquee matters like LA28 and London competition litigation exposes concentration risk.

What makes Sidley Austin unique

  • Sidley combines elite litigation, antitrust, and regulatory work across 21 offices globally.
  • Yvette Ostolaza and Brian Fahrney keep investing in London, California, and Los Angeles.
  • LA28 named Sidley an official legal services provider on October 21, 2026.

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Benefits

  • Hybrid Work Options

Company News

LawCareers.Net
Nov 11th, 2026
Weil partners vote to wind down firm as rivals move to recruit lawyers.

Weil partners vote to wind down firm as rivals move to recruit lawyers. updated on 11 November 2026 Dimitar Dimitrov is acting senior content and events coordinator at LawCareers.Net Reading time: two minutes Partners at Weil, Gotshal & Manges LLP have overwhelmingly voted to wind down the 95-year-old US law firm, with several international firms already moving to recruit lawyers affected by its closure. Some 97% of Weil partners voted in favour of an orderly wind-down on Tuesday 10 November. The decision is said to affect around 1,200 lawyers, including 280 partners, as well as more than 1,000 other staff. Its London office has 45 partners and 200 solicitors. International firm Sidley Austin LLP is reportedly in discussions to recruit around 200 people from Weil, with offers already made and interviews continuing for positions across London, Europe and New York. Most of the proposed hires are lawyers, although some business professionals are also included. Meanwhile, Kirkland & Ellis International LLP announced last week that 40 Weil lawyers will join the firm in January. The group includes partner Ramona Nee, who'd been due to take over Weil's leadership next year. Elsewhere, Sullivan & Cromwell LLP has reportedly recruited three of the firm's London trainees, alongside five future trainees who had been due to join next year. A 40-strong funds team from Weil's London office has also reportedly been negotiating a move to Gibson, Dunn & Crutcher UK LLP. Weil, which is headquartered on Wall Street, recorded turnover of $2 billion last year, with profits per equity partner exceeding $5 million. Its wind-down will be overseen by a committee comprising general counsel Robert Carangelo, tax department chair Paul Wessel and Patricia Ferrari. Executive partner Barry Wolf, who has held the role since 2010, is expected to serve as a special consultant to the committee. LawCareers.NET Follow us on (C) 2026 - Law Business Research trading as Centellic

Sportico
Nov 10th, 2026
Sports PE boom reshapes big law as Charles Baker moves.

Sports PE boom reshapes big law as Charles Baker moves. November 10, 2026 12:01am The world of law firms representing sports clients in business deals is shaking up once again as Clifford Chance announced on Tuesday it has appointed Charles Baker as a partner in its private equity practice. Baker, who joins Clifford Chance from Sidley Austin, has extensive experience negotiating deals for private equity clients seeking to buy into sports. Baker has represented Carolina Panthers owner David Tepper, former Chelsea FC owner Todd Boehly and Arctos Sports in transactions involving equity stakes in NBA and NHL teams. He is currently advising on the $12.5 billion Los Angeles Lakers transaction. He recently advised on equity transactions involving the San Diego Padres, Washington Commanders and Charlotte Hornets. All told, Baker has negotiated franchise acquisitions, league expansion, ownership investment, media, gaming and other transactions connected to teams in the NFL, NBA, NHL, MLB, MLS, NWSL, WNBA, Liga MX, Formula 1 and European soccer leagues. He has also advised several major sports figures on business deals, including Eli Manning, Kevin Durant and Tracy McGrady. Baker's move reflects a broader trend of law firms recruiting private equity specialists whose clientele includes sports clients. The growth of the sports industry, the general increase in franchise values and the rise of investor groups purchasing majority or minority interests in teams have generated more transactional work. It's also a reminder that the term "sports lawyer" can mean many different things: a litigator who represents clients in labor, antitrust and contract disputes; a torts attorney who specializes in health care and personal injury controversies; in-house counsel for a league or team; a compliance attorney for a university athletic department; a business attorney whose deals involve sports; a criminal defense attorney whose clients include athletes who get in trouble with the law; a specialist in family law, including paternity matters, or one in wills, trusts and estates; or one of many other subfields. As Sportico recently detailed, the marketplace for sports attorneys is in flux, with Weil, Gotshal & Manges - a longtime industry leader in private equity representation in sports - winding down its operations.

Benzinga
Nov 3rd, 2026
$1.15 million raised by Legal Aid Foundation of Los Angeles.

$1.15 million raised by Legal Aid Foundation of Los Angeles. Mattel, Inc., Stay Housed LA, Lisa M. Gilford, Jonathan Segal & Davis Wright Tremaine LLP Honored at the 28th Annual Access to Justice Gala Mark Damon Espinoza Emceed and Shaun Robinson Presented The Legal Aid Foundation of Los Angeles (LAFLA) hosted its 28th Annual Access to Justice Gala at the Beverly Wilshire Hotel. The evening raised $1.15 million to support LAFLA's mission of achieving equal access to justice for people living in poverty across Greater Los Angeles. The nonprofit's largest fundraiser brought together more than 500 guests to honor community leaders advancing justice for underserved communities. Actor Mark Damon Espinoza emceed the gala, with Emmy Award-winning TV host Shaun Robinson among the award presenters. (L-R) Jonathan Anschell of Mattel, Inc. (Corporate Impact Award); Jonathan Segal of Davis Wright Tremaine LLP (Pro Bono Service Award); Javier Beltran, Jessica Prieto and Joanna Esquivel of Stay Housed LA (Access to Justice Award); and Lisa M. Gilford of Sidley Austin LLP (Maynard Toll Award for Distinguished Public Service) were honored at the Legal Aid Foundation of Los Angeles (LAFLA)'s 28th Annual Access to Justice Gala, supporting equal access to justice for people living in poverty, at the Beverly Wilshire in Beverly Hills, CA. Photo Credit: Elad Lavi Photography Mattel, Inc. received the inaugural Corporate Impact Award in recognition of its pro bono program. The award was presented by LAFLA Board Member James E. Hornstein and accepted on behalf of the company by Jonathan Anschell, Mattel's Executive Vice President, Chief Legal Officer, and Secretary. Stay Housed LA received the Access to Justice Award, presented by LAFLA Director of Housing Justice Barbara J. Schultz and accepted by Joanna Esquivel, Jessica Prieto, and Javier Beltran. The coalition has provided legal services to more than 60,000 tenants over six years. Robinson presented the Maynard Toll Award for Distinguished Public Service to Lisa M. Gilford, Partner at Sidley Austin LLP. Jonathan Segal and Davis Wright Tremaine LLP received the Pro Bono Service Award, presented by LAFLA Director of Impact Litigation and Policy Shayla Myers. The program highlighted LAFLA's impact through client testimonials, including military veteran Manuel Ibarra, who received assistance accessing VA benefits; Derrick and Carole Ah Sam, who challenged FEMA denials following the Eaton Fire; and Antonia and her child, Aiden, whose story highlighted LAFLA's immigration assistance for survivors of domestic violence. Additional participants included LAFLA Executive Director Silvia Argueta, Board President Lynette Jones, and Board Members Debra L. Fischer and Christopher O. Rivas. Joseph B. Farrell served as Dinner Chair. The evening featured dinner, a silent auction, and music by Jonathan Richards Music. Every year, LAFLA's free, high-quality legal services impact more than 100,000 people living in poverty across Greater Los Angeles. Learn more at lafla.org. ABOUT LEGAL AID FOUNDATION OF LOS ANGELES (LAFLA) Legal Aid Foundation of Los Angeles (LAFLA) is a nonprofit law firm that seeks to achieve equal justice for people living in poverty across Greater Los Angeles. LAFLA changes lives through direct representation, systems change, and community empowerment. It has five offices in Los Angeles County, along with four Self-Help Legal Access Centers at area courthouses, three domestic violence clinics to aid survivors, and six medical-legal partnerships at major health care centers. For detailed information on LAFLA's services, please visit our services section. PRESS CONTACT Posted In:

PR Newswire
Nov 2nd, 2026
Five leading Energy & Infrastructure partners join Latham & Watkins, further strengthening market-leading global platform.

Five leading Energy & Infrastructure partners join Latham & Watkins, further strengthening market-leading global platform. Nov 02, 2026, 13:50 ET Arrival of five partners - Jason Bennett, Matthew Fusina, Thomas Holmberg, Jessica Adkins, and Charles (Chase) Armbrust - brings elite project development and finance capabilities across LNG, power, renewables, data centers, oil and gas, and other critical energy and infrastructure sectors. HOUSTON, Nov. 2, 2026 /PRNewswire/ - Latham & Watkins LLP is pleased to announce that Jason Bennett, Matthew Fusina, Thomas Holmberg, Jessica Adkins, and Charles (Chase) Armbrust have joined the firm as partners in the Project Development & Finance Practice. The five-partner group expands Latham's project development and finance capabilities at a time of growing demand for sophisticated advice across the full life cycle of energy and infrastructure projects, including LNG, power, renewables, data centers, oil and gas, and other critical energy and infrastructure sectors. The group includes: * Bennett, Fusina, and Holmberg, widely regarded as one of the world's leading project development teams for complex energy and infrastructure projects across the globe. Bennett, Fusina, and Holmberg join Latham from Baker Botts. * Adkins, one of the foremost lawyers in her field, advises on electric power and renewable energy transactions, including power purchase agreements, complex offtake arrangements, commodity hedging, and power supply matters for data centers. Adkins joins Latham from Sidley Austin. * Armbrust, a highly regarded energy and infrastructure finance lawyer, focuses on debt financing for energy and infrastructure projects, with significant experience in utility-scale and distributed solar, wind, fuel cell, biomass, and thermal power projects. Armbrust joins Latham from Orrick. "We are delighted to welcome Jason, Matt, Tom, Jessica, and Chase to Latham," said Rich Trobman, Chair and Managing Partner of Latham & Watkins. "They are proven leaders and highly accomplished practitioners in the energy and infrastructure sector, and their decision to join Latham is further evidence that we continue to be the destination of choice for the market's top talent. This is a time of unprecedented innovation across the energy and infrastructure sector, and no other firm can match our cutting-edge practice, which is leading the way in transforming a truly dynamic and rapidly evolving market." Justin T. Stolte, Global Chair of Latham's Energy & Infrastructure Group, said: "Whether in AI infrastructure, LNG, power, or other critical energy and infrastructure investments, our clients increasingly need advisors who can support every facet of their projects. The arrival of this group was a strategic opportunity to strengthen our ability to meet that demand, expanding the depth and breadth of our market-leading projects practice in energy and infrastructure." "With the accelerating pace, focus, and demand for sophisticated project development and finance advice on energy and infrastructure investments across the globe, we are excited to add these five leading partners to our world-class Project Development & Finance platform," added Chirag Dedania, Global Co-Chair of Latham's Project Development & Finance Practice. "They strengthen our ability to support clients across the full project life cycle and place us even more clearly at the forefront of the global energy and infrastructure sector." "We are thrilled to welcome this exceptional group to our firm," said Nick Dhesi, Managing Partner of Latham's Houston office. "Their arrival marks a significant expansion of our energy and infrastructure capabilities in Texas. Their practices are highly complementary to our existing platform in Houston and around the world, and are further evidence of our aggressive plans in Texas." Bennett received his JD from Georgetown University Law Center and his BA from The University of Texas. Fusina received his JD from the University of Virginia School of Law and his BA from the University of Virginia. Holmberg received his JD from Georgetown University Law Center and his BA from the University of Arizona. Adkins received her JD from The University of Texas School of Law and her BS in Chemical Engineering from Rice University. Armbrust received his JD from the University of Michigan Law School and his BA from The University of Texas at Austin. About Latham & Watkins (lw.com) Latham & Watkins is a leading global law firm that brings together exceptional legal talent in financial centers around the world to advise on complex transactions, litigation, and regulatory matters. The firm's deep market and product knowledge, industry experience, vast scale, and commitment to innovation and excellence help clients navigate their most critical challenges and achieve their goals. Contacts Rich Trobman, Chair and Managing Partner, +1.212.906.1200 Nick Dhesi, Houston Office Managing Partner, +1.713.546.7409 Justin T. Stolte, Global Chair, Energy & Infrastructure Group, +1.713.546.7966 Chirag Dedania, Global Co-Chair, Project Development and Finance Practice, +1.212.906.1693 SOURCE Latham & Watkins

Kinney Recruiting
Oct 30th, 2026
Sidley adds competition litigator Elaine Whiteford in London.

Sidley adds competition litigator Elaine Whiteford in London. Friday, October 30, 2026 Sidley is pleased to announce that Elaine Whiteford has joined the firm's Litigation practice group in Sidley's office in London, where her practice will focus on competition and antitrust litigation, investigations, and related matters. Whiteford joins from Willkie Farr & Gallagher LLP, where she was a partner in their Litigation and Antitrust & Competition practices. Ms. Whiteford is a leading contentious and regulatory competition lawyer. For more than 25 years, she has represented large multinational companies in their highest-profile competition and antitrust disputes. Her experience includes competition damages cases | both cartels and abuse of dominance claims | in the UK's Competition Appeal Tribunal, the English High Court, the English Court of Appeal, and the Supreme Court of the United Kingdom. She has also acted in a wide range of claims brought under the UK's collective actions regime and has also advised in connection with a number of regulatory investigations, involving, amongst others, the UK Competition and Markets Authority (CMA), the Financial Conduct Authority (FCA), other regulators around the globe, and, pre-Brexit, the European Commission. Ms. Whiteford has also represented clients challenging regulatory decisions, including merger prohibition decisions. Ms. Whiteford is highly ranked in both Legal 500 UK and Chambers UK for "Competition Law" and "Competition Litigation." "Our clients with UK and European exposure face a steady stream of competition claims from follow-on damages to collective actions, and they want advisers who have been in the room for the most significant cases. Elaine brings exactly that deep experience," said Yvette Ostolaza, Chair of Sidley's Management Committee. "Elaine is already well known to many of our lawyers and highly regarded by several of our clients, she is a natural fit with our culture of collaboration, and will strengthen our ability to support clients alongside colleagues across our global litigation and antitrust practices." "The scale and complexity of competition damages claims in the UK, including collective actions, are driving demand for specialist counsel, and we are continuing to invest in those practices to support our clients," said Tom Thesing, managing partner of Sidley's London office and a member of the firm's Management and Executive Committees. "Elaine's arrival is a further step in the sustained investment we are making in London, where we have grown significantly and continue to add leading partners across our disputes, regulatory, and transactional practices." Sidley has added more than 30 partners in London in addition to promoting 15 of its lawyers to its partnership in the last three years. These include Philip Hertz, Melissa Coakley, James Inness, Jeremy Trinder, Sean Carney, Ed Gander, David Stewart, Clive Gringras, Jayanthi Sadanandan, Sam Hamilton James MacArthur, and Ramy Wahbeh. During this period, Sidley has continued its more than decade-long year-on-year revenue growth and has advised clients on many of their most sophisticated matters across its transactions, disputes, and regulatory practices. Analysis | Jobs | News

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