Hybrid role in New York.
Simpson Thacher & Bartlett is a large, long-established international law firm with about 1,500 lawyers. It helps clients worldwide by providing coordinated legal advice and transactional capabilities across multiple practice areas, drawing on offices in major financial and business centers (New York, London, Hong Kong, Tokyo, Beijing, São Paulo, etc.). The firm works through a network of attorneys to handle complex transactional work, mergers and acquisitions, financing, litigation, and other corporate matters for clients globally. Its differentiator is its global reach, depth of experience, and long history dating back to 1884, enabling it to offer coordinated, cross-border legal services at scale. The firm’s stated goal is to deliver high-quality legal services to clients around the world, leveraging its international platform and experienced lawyers to meet diverse legal needs.
Company Size
1,001-5,000
Company Stage
N/A
Total Funding
N/A
Headquarters
New York City, New York
Founded
1884
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Paul Weiss adds three Weil partners to private equity team in New York. * September 24, 2026 * - 10:30 am Paul Weiss is expanding its private equity practice in New York with the hire of three Weil partners, who will join former Weil private equity co-head Chris Machera at the firm, according to a report by the Global Legal Post. Private equity M&A partner Timothy Burns, tax partner Noah Beck and executive compensation partner Amanda Rotkel are expected to join Paul Weiss in the coming weeks, alongside two associates. Machera moved to Paul Weiss in New York at the end of August. The group has advised a broad range of private equity clients in recent years, including Blackstone, CVC Capital Partners, Goldman Sachs Asset Management and TPG. Paul Weiss chair Scott Barshay said the team would strengthen the firm's focus on advising private equity clients on major transactions. The appointments come amid a series of senior departures from Weil, a firm with about 1,200 lawyers. Earlier this month, Weil corporate department chair Michael Aiello announced plans to move to Cravath, Swaine & Moore with five M&A partners. Sullivan & Cromwell has also recruited senior Weil lawyers, including London co-managing partner David Avery-Gee and corporate partner Sarah Flaherty. The firm has been expanding its London corporate and private equity capabilities through a series of lateral hires. Several Weil partners have also moved to Simpson Thacher & Bartlett this year, including US private funds co-head Stephanie Srulowitz and GP stakes and investment management partner Andrew Nichol, both in New York.
Simpson Thacher expands litigation bench with former DOJ antitrust official. Simpson Thacher & Bartlett LLP today announced that Megan Lewis, a former senior official in the U.S. Department of Justice, has joined the Firm as a Litigation Partner in its Washington, D.C. office, further strengthening the Firm's capabilities in high-stakes antitrust litigation, enforcement and regulatory matters. "Meg brings exactly the kind of sophisticated enforcement, litigation and government experience clients need as antitrust scrutiny continues to intensify," said Lynn Neuner and Jon Youngwood, Global Co-Chairs of the Firm's Litigation Department. "Her DOJ experience - particularly advising senior leadership on high-profile antitrust enforcement and congressional oversight matters - gives her a rare perspective on how complex investigations are shaped, advanced and resolved." "Meg is known for her exceptional track record in both government and private practice handling high-stakes criminal antitrust investigations as well as complex civil antitrust investigations and litigation," said Peter Guryan, Sara Razi and Antonio Bavasso, Global Co-Chairs of the Firm's Antitrust and Trade Regulation Practice. "She will be a tremendous asset to our team, further strengthening our ability to advise clients on their most consequential competition matters. We are excited to welcome her to Simpson Thacher." Over the last two decades of her career, Meg has worked inside and outside the government on a wide range of antitrust and other complex matters. As a former Assistant Chief in the Antitrust Division of the DOJ, Meg supervised criminal investigations involving price fixing, bid rigging, market allocation, algorithmic pricing issues and criminal monopolization across a variety of industries. Leveraging that experience in private practice, she counsels and represents clients on civil and criminal antitrust matters, including complex cross-border investigations, parallel civil litigation and engagement with enforcers. Additionally, Meg's experience serving in leadership roles in the Offices of the Deputy Attorney General and Legislative Affairs at DOJ provides a unique perspective and skill in navigating matters that garner public attention and congressional oversight. Simpson Thacher's Antitrust and Trade Regulation Practice advises companies across every major industry on their global antitrust and competition needs, as well as on regulatory issues impacting their interests and operations around the world. "Simpson Thacher has built one of the premier antitrust practices in the world. I'm excited to join this exceptional team and help clients navigate their most complex competition and strategic challenges," said Meg. Simpson Thacher's Global Litigation Department represents a wide range of sophisticated clients, including corporations, financial institutions, boards, audit and special committees, and senior executives in their most significant matters. The Firm leverages its substantial bench of talent and broad experience to effectively handle litigations, government and internal investigations, arbitrations and cross-border disputes in North and South America, Asia and Europe. The team has been recognized by Chambers & Partners, The Legal 500, Benchmark Litigation, The American Lawyer, National Law Journal, New York Law Journal, Law360, Global Competition Review, Global Investigations Review, The Recorder, Daily Journal and many others. Team and contacts. Related insights. Related services. Related practice areas.
Simpson Thacher named "International Law Firm of the Year" at 2026 Asia Legal Awards. Simpson Thacher was selected as Law.com International's "International Law Firm of the Year" at the 2026 Asia Legal Awards, earning one of the competition's four Grand Prize honors. The award, determined by direct feedback from clients and peers, recognized the Firm's track record of delivering innovative, cutting-edge solutions for clients across the region, the unmatched market-leading strength of its key partners and teams, and its sustained exceptional performance in the Asian legal market. The Firm's recognition extended beyond the Grand Prize honor. Simpson Thacher was also named "Banking & Finance Firm of the Year," and partner Makiko Harunari was honored as "Banking & Finance Lawyer of the Year," a testament to the depth and caliber of the Firm in the region. Held annually, the Asia Legal Awards recognize the most important transactions and outstanding legal work in Asia. For more information and to view the full list of winners, please click here. Team and contacts. Related insights. Related services.
Lowenstein Sandler continues expansion of its Investment Management & Private Funds Group. Lowenstein Sandler has announced the continued expansion of its Investment Management & Private Funds Group with the addition of Brendan R. Kalb and Nachman "Nathan" Calko. Kalb joins Lowenstein from ExodusPoint Capital Management, where he served as Global General Counsel, while Calko joins from Simpson Thacher & Bartlett. Kalb has more than 25 years of experience as a leader in the private funds industry, including most recently at ExodusPoint Capital Management, and prior to that as the General Counsel at AQR Capital Management and at other leading law firms. Kalb advises investment advisers on all aspects of their business and operations, including legal, regulatory, and compliance functions, as well as design, development, and management of investments funds encompassing a wide variety of structures and investment strategies. Calko has nearly ten years of experience representing sponsors in the formation, structuring, and operation of private investment funds across a wide range of strategies, including private equity, credit, secondaries, continuation, infrastructure, and real estate, as well as a variety of co-investment structures and separately managed accounts. Robert G. Minion, partner and Chair of Lowenstein's Investment Management & Private Funds Group, says: "Brendan and Nathan bring a great combination of in-house and law firm experience that aligns perfectly with the needs of today's asset managers. Brendan has spent much of his career leading the legal, regulatory, and compliance functions at some of the industry's most sophisticated investment platforms, and Nathan brings deep private funds structuring and formation experience. Together, they further strengthen our ability to provide practical, commercially focused legal advice and services to our clients across the entire investment management community." Kalb noted: "I've spent much of my career building and supporting the legal and compliance infrastructure that enables fund managers to grow and operate efficiently in our highly regulated industry. Lowenstein's deep investment management practice, entrepreneurial spirit, and pragmatic approach to client service made the firm a natural fit for me." Calko stated: "Lowenstein's fund formation platform is one of the most active and well-respected in the market. I was drawn to the firm's collaborative culture, sophisticated client base, and strong platform for private funds." Kalb received his J.D. from Cornell Law School and his B.A. in International Relations and Economics, magna cum laude, from the University of Pennsylvania. He is a former member of the Board of Directors of the National Futures Association and has served on the Founder's Council of the Managed Funds Association. Calko received his J.D. from Fordham University School of Law, where he received the Archibald R. Murray Public Service Award, and his B.T.L. from Ner Israel Rabbinical College. About Lowenstein Sandler LLP Lowenstein Sandler LLP is a national law firm with over 400 lawyers based in New York, Palo Alto, Roseland, Salt Lake City, San Francisco, Washington, D.C., and Wilmington. The firm represents leaders in virtually every sector of the global economy, with particular emphasis on investment funds, life sciences, and technology. Recognized for its entrepreneurial spirit and high standard of client service, the firm is committed to the interests of its clients, colleagues, and communities.
Simpson Thacher grows Los Angeles platform with new tax partner. Simpson Thacher & Bartlett LLP today announced that Jonathan Westreich has joined the Firm as a Partner in its Tax Practice, based in Los Angeles. "Adding a Tax partner of Jonathan's caliber further enhances our offering as we continue to expand the Firm's resources and capabilities across the country," said Nancy Mehlman, Co-Head of the Firm's Tax Practice. "Jonathan's deep experience advising on the tax aspects of high-profile, complex corporate transactions will bring tremendous value to our clients and further strengthen our transactional capabilities across key markets." "Jonathan's breadth of experience across M&A, private equity, restructurings and financings makes him an outstanding addition to our practice," said Marcy Geller, Co-Head of the Firm's Tax Practice. "His deep industry knowledge in the sports, entertainment and media sectors further bolsters our ability to provide comprehensive tax counsel to clients, particularly as our Sports practice continues to grow following the recent addition of Michael Kuh, Eric Geffner and Matthew Carpenter-Dennis earlier this year." "Jonathan's addition as our fifth lateral partner hire in Los Angeles this year reflects the significant momentum we have built in the market and underscores our strategy of investing in exceptional talent and capabilities that support our clients' most important priorities," said Tom Wuchenich, Managing Partner of Simpson Thacher's Los Angeles office. Jonathan represents companies, investment funds and other strategic clients in complex corporate transactions, including mergers, acquisitions, dispositions, tax-free reorganizations and restructurings with respect to domestic and cross-border tax issues. He also has significant experience with capital markets offerings, financings and joint ventures, including transactions involving real estate, with a particular focus on clients in the sports, media and entertainment industries. "Simpson Thacher's collegial culture, commitment to excellence and premier global footprint provide an impressive foundation for serving clients at the highest level," said Jonathan. "I look forward to contributing to the continued momentum of the Los Angeles office while helping clients navigate complex, high-profile transactions around the world." Simpson Thacher's Tax Practice is continually called upon by investment funds, banks, multinational corporations and other leading companies for advice on their largest and most complex transactions. The global team works closely with colleagues in all of the Firm's transactional practices including Mergers and Acquisitions, Private Equity, Capital Markets, Investment Funds and Real Estate to offer clients the full spectrum of deal and fund capabilities. To view a PDF of the announcement, please click here. Team and contacts. Related insights. Related services. Related practice areas.