Sidley Austin

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.

About Sidley Austin

Simplify's Rating
Why Sidley Austin is rated
B
Rated A 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, Illinois

Founded

1866

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Simplify's Take

What believers are saying

  • August 12, 2026 hire Jiqiang Lin deepens New York life-sciences transactions.
  • August 2026 partner additions in energy, finance, and CIO leadership show active momentum.
  • London revenue rose 32% to $299 million in 2025, confirming international demand.

What critics are saying

  • Genesis Healthcare’s August 2026 conflict challenge shows recurring bankruptcy-disqualification exposure.
  • Sidley’s lateral-spend model depends on expensive defections like James Inness and Brian Foster.
  • Rapid expansion creates integration risk; one failed platform launch can erode partner economics quickly.

What makes Sidley Austin unique

  • Sidley added 52 partners for 2026, signaling relentless bench expansion across practices.
  • Its London raid on Latham produced 12 partner moves in 18 months.
  • Yvette Ostolaza leads a crisis-litigation platform paired with top-tier finance and life-sciences benches.

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Company News

Global Legal Group
Aug 13th, 2026
Sidley Austin taps Cooley for life sciences transactions partner.

Sidley Austin taps Cooley for life sciences transactions partner. Published on 13/08/2026 A lawyer specialising in IP-focused commercial deals joins Sidley in New York. Global law firm Sidley Austin has bolstered its life sciences transactions practice with the appointment of Jiqiang Lin as partner. The hire was confirmed yesterday (12 August). Lin joins the firm's New York office following a four-year stint at international law firm Cooley, where he was recently promoted to senior counsel in March 2026. With a client base including biotechnology, pharmaceutical and other life science companies, including China-based businesses, Lin specialises in complex intellectual property-focused commercial deals. His US and cross-border practice spans licensing arrangements, strategic collaborations and related transactions focused on the growth and commercialisation of innovative technologies and therapies. Lin's work also extends to advising on manufacturing and supply, research and development, distribution and commercialisation agreements, as well as commercial and intellectual property matters related to public offerings and mergers and acquisitions, as well as other strategic investments. In his earlier career, Lin served as an associate at global law firm Latham & Watkins and as a regulatory intern at biopharmaceutical giant Pfizer. Sidley's management committee chair Yvette Ostolaza described Lin as an "outstanding life sciences transactions lawyer with experience advising on some of the industry's most innovative licensing, collaboration and partnering transactions". "[Lin's] arrival further expands our transactional life sciences practice on the East Coast, adding to the recent growth in our practice in Boston and New York," added global life sciences head Sharon Flanagan. "His combination of sophisticated scientific credentials and extensive experience advising on high stakes matters will enhance our ability to counsel clients on complex transactions involving cutting-edge therapeutic platforms, biologics, immunology, oncology, gene therapy, and other advanced technologies." Sidley previously poached talent from Cooley in March 2026, hiring San Diego-based partner Steven Przesmicki in a boost to its corporate and securities capabilities. Related firms. Related publications.

Proximo Infra
Aug 12th, 2026
Sidley adds energy finance partner in New York.

Sidley adds energy finance partner in New York. Law firm Sidley has hired Sharanyaa Kruti Vasan as a New York partner in its Energy, Transportation and Infrastructure practice. Kruti Vasan joins from Milbank, where she was part of the Global Project, Energy and Infrastructure Finance Group. Her work is primarily focused on renewable energy... Exclusive subscriber content... Not yet a subscriber? Join us today to continue accessing content without any restrictions Or to request access to Proximo Intelligence contact us

Global Legal Post
Aug 10th, 2026
Paul Hastings adds London restructuring firepower with senior partner hires.

Paul Hastings adds London restructuring firepower with senior partner hires. Bevis Metcalfe and Kieran Sharma join from Hogan Lovells Cadwalader and Sidley Austin respectively as US firm rebuilds City restructuring bench 10 August 2026 Krisztian Miklosy Paul Hastings has added senior restructuring partners in London from Hogan Lovells Cadwalader and Sidley Austin, respectively, as the US firm continues its multi-practice hiring spree in the City. Bevis Metcalfe, who was co-chair of the financial restructuring group at legacy Cadwalader Wickersham & Taft prior to its merger with Hogan Lovells in July, has joined alongside Kieran Sharma, who previously led the London restructuring team at Sidley. The duo boost Paul Hastings' senior restructuring bench in London following practice co-chair Mei Lian's exit for Linklaters last year and European restructuring chair William Needham's defection to Sullivan & Cromwell earlier this year. Paul Hastings said Metcalfe and Sharma furthered its aim to develop a global restructuring platform that builds on its top-tier practice in the US. They take the firm's City restructuring team to around 20 lawyers, as part of a global group of more than 110. Advertisement Firm chair, Frank Lopez, pointed to the duo's experience and relationships across the market. "Their practices are a strategic priority as we build a premier London and Europe special situations and restructuring platform," Lopez said. "Their track record advising on complex, multijurisdictional matters will enable us to continue to take market share at the top of the market." Metcalfe brings a creditor-focused practice representing banks, CLOs, multi-strategy asset managers and private credit funds in in-court and out-of-court restructurings, distressed M&A and capital solutions transactions. He was a partner at Baker McKenzie for several years before joining Cadwalader in 2022. Sharma represents clients across the capital structure in stressed and distressed situations, including liability management transactions, in-court restructurings, out-of-court restructurings, formal insolvency processes and distressed M&A transactions. He joined Sidley as a partner, having earlier spent three years on the European investment team at Strategic Value Partners, working on distressed and special situations transactions. LAW OVER BORDERS COMPARATIVE GUIDES Enforcement of Judgments Law Guide This comparative guide offers a practical overview of the enforcement of judgments and arbitration awards across multiple jurisdictions... | 2mos. The hires continue an aggressive hiring streak by Paul Hastings' London office that fuelled 25% revenue growth in the year to 31 January 2026, making it a star performer in a year when the firm's global revenue rose 20% to $2.7bn. The firm has added more than a dozen lateral partners in London in recent months, including former Cooley private equity specialist Ferish Patel and ex-Slaughter and May corporate partner Mark Zerdin, who both joined in February. There have also been hires across the firm's high-yield, fund finance, private equity and real estate, tax, antitrust, structured credit, investment funds and employee benefits practices. Sidley Austin declined to comment on Sharma's move. The firm made its own splashy restructuring hires in London last month when it added Philip Hertz, global co-head of Clifford Chance's restructuring and insolvency group, alongside the firm's London restructuring head, Melissa Coakley.

InvestmentNews
Aug 5th, 2026
Corient welcomes $21 billion Summit Trail Advisors in supersize deal.

Corient welcomes $21 billion Summit Trail Advisors in supersize deal. Kurt MacAlpine, founding partner and chief executive officer of Corient. The acquisition deepens the mega-RIA and largest non-bank wealth manager's push into ultra-high-net-worth advisory as 2026 consolidation hits record levels. AUG 05, 2026 Corient, which has built up a strong claim as the world's largest multi-family office and non-bank wealth manager focused on ultra-high-net-worth clients, announced Tuesday that it is adding a New York-based registered investment advisor with more than $21 billion in assets under management to its growing roster. The deal to add Summit Trail Advisors marks Corient's latest and largest US move in a run of acquisitions that has made it one of the most prolific consolidators in the RIA space over the past 18 months. Founded in 2015, Summit Trail is an independent advisor built to serve ultra-high-net-worth individuals and families whose complex financial needs have outgrown traditional wealth management, acting as an outsourced family office and chief investment officer across public and private markets. "The decision by a firm of Summit Trail's caliber to join Corient serves as meaningful validation of our firm's quality and the differentiated value of our private partnership structure and business model," said Kurt MacAlpine, founding partner and chief executive officer of Corient. "Summit Trail is an exceptional firm, with exceptional people. With their deep experience in ultra-high-net-worth advisory, the Summit Trail team will be a strong addition to our partnership, extending our expertise and broadening our client relationships across the country." Jack Petersen, managing partner of Summit Trail, pointed to Corient's structure as the deciding factor for the firm and its clients. "What drew us to Corient was its partnership model - the only one of its kind in wealth management - and the collaboration it fosters across the organization," Petersen said, while also highlighting Corient's "culture of shared ownership" and its "extensive capabilities, deep resources and global scale to deliver an even better experience to sophisticated clients." Ardea Partners LP is serving as exclusive financial advisor to Summit Trail, while Seward & Kissel LLP was its legal counsel for the deal. Goldman Sachs is serving as exclusive financial advisor to Corient, which tapped Sidley Austin LLP as legal counsel. A firm built from a Barclays breakaway. Summit Trail was founded by Petersen along with Dave Romhilt, Tom Palecek, John Scarborough and Peter Lee, several of them former Barclays advisors who went independent after Barclays sold its U.S. wealth management unit to Stifel Financial in 2015. The firm has since grown to more than 100 employees across 10 U.S. cities, including New York, Boston, Chicago, Dallas, Denver, Minneapolis, San Francisco, Seattle, Harrisburg, Pennsylvania, Newport Beach, California, and Portland, Oregon. Last year in May, the firm brought in Jeff Ringdahl, a 14-year veteran of Resolute Investment Managers, as president and chief operating officer to help institutionalize its operating structure as it scaled its family office and estate planning offerings. That appointment proved short-lived as Ringdahl was hired away to become president at Raymond James Investment Management in December. Upon closing, expected in the third quarter of 2026, Summit Trail's principals will become Corient partners. Corient, established in 2020, operates under a client-first, fee-transparent model built on a private partnership structure similar to those used by leading professional services firms - a design meant to give clients access to the full breadth of the firm's expertise rather than depending on a single advisor. The firm has grown to more than 300 partners and over 2,700 employees managing approximately $556 billion globally on behalf of ultra-high-net-worth and high-net-worth individuals, families and businesses. Terms of the transaction were not disclosed. Part of a broader dealmaking spree. The Summit Trail deal is the latest in a string of transactions for Corient this year. Last month, the firm added Seven Bridges Advisors, a $5 billion New York multi-family office serving entrepreneurs and tech executives. In May, Corient entered Oklahoma with its acquisition of Capital Advisors, a Tulsa-based RIA managing $7.8 billion in assets, and the firm has separately moved to expand its footprint overseas through acquisitions in the U.K. and France. Corient's expansion is playing out against a backdrop of record industry-wide consolidation. DeVoe & Company's most recent RIA M&A Deal Book found that the first half of 2026 produced 167 transactions industrywide, surpassing the prior first-half record of 148 deals set the previous year, with Corient ranking among the ten most acquisitive firms tracked in the report. Echelon Partners' 2025 RIA M&A Deal Report separately credited the firm with seven transactions in the $1 billion-plus deal segment.

Insurance Business
Aug 5th, 2026
Hartford-Equitable deal signals carrier race for SME benefits scale.

Hartford-Equitable deal signals carrier race for SME benefits scale. Two carrier acquisitions in 30 days show where the competition for small and midsize employer benefits is heading. The Hartford has agreed to acquire Equitable's employee benefits business in a transaction covering approximately $500 million in premium, the Connecticut-based insurer announced. The deal is the second major carrier acquisition in the small and midsize employer benefits market within a month. Equitable's employee benefits portfolio spans group life, disability, paid family and medical leave, supplemental health, dental, and vision products. The roughly 300 employees who support the business will join The Hartford at closing, expected in the fourth quarter of 2026, subject to regulatory approvals. Financial terms were not disclosed. The transaction advances The Hartford's strategy of expanding in what it calls its priority business segment, targeting employers with under 500 lives. The Hartford's 2025 Future of Benefits Study found seven in 10 employers believe they should offer additional benefits to remain competitive in the small and midsize market. Technology drives the deal rationale. The Hartford cited Equitable's employee benefits technology as a material part of the acquisition rationale. The platform offers unified digital capabilities and real-time API integrations designed to streamline enrollment and administration for employers, employees, and brokers. Mike Fish, head of employee benefits at The Hartford, said the technology would make it easier for small and midsize business customers to access and manage their benefits. Fish's comments signal that the deal is as much about platform capability as it is about premium volume. That direction is consistent with how other carriers are competing in the segment. Principal Financial Group announced an agreement in July to acquire Beam Benefits, a cloud-native dental, vision, and ancillary benefits platform serving more than 25,000 small businesses with approximately $175 million in premiums. It cited similar rationale around digital distribution and scale. Scale shifts the conversation. For brokers with clients placed on Equitable's group benefits products, the transaction represents a carrier transition. The Hartford said the two companies will work together to support mutual customers through the closing process. For brokers distributing through The Hartford, the acquisition adds product lines, premium volume, and a technology platform in a segment under active consolidation. Employee benefits agencies focused on the SME market are the highest-multiple insurance category in M&A, trading at 9 to 12 times EBITDA according to CT Acquisitions, a signal of sustained capital interest in the segment from carriers and brokers alike. (AC) Rothschild & Co and Sidley Austin LLP advised The Hartford. J.P. Morgan and Debevoise & Plimpton LLP advised Equitable.

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