Awards & Rankings 06.04.26
Pillsbury’s Standout Performance in 2026 Chambers USA Rankings Underscores Continued Excellence Across Industries and Disciplines
Firm Earned Recognition Across 60 Practice Areas, Including 26 National Rankings
One of the most intuitive and commercially minded lawyers; he understands all the details of outsourcing agreements and knows which issues are important and how to negotiate them. He has a huge depth of knowledge; he is a pioneer.
Aaron Oser, Pillsbury’s former Global Head of Global Sourcing & Technology Transactions, is a recognized leader in structuring large-scale, complex strategic information technology and business process outsourcing, cloud, mission critical enterprise software and systems development and integration transactions.
Mr. Oser devotes a significant portion of his practice to counseling clients on large-scale, complex strategic information technology and business process outsourcing, transformational outsourcing, development, integration, facilities management and telecommunications transactions. He has negotiated and documented a wide variety of technology-related transactions, including information technology, business process and transformational outsourcing arrangements; turn-key system acquisition and systems integration agreements; software licensing, development, maintenance and distribution contracts; multimedia agreements; distribution agreements; video gaming agreements; professional services arrangements; and hardware acquisition and maintenance agreements. Mr. Oser has undertaken numerous high-profile technology transactions, including major outsourcings and technology transactions for Goldman Sachs, American Express, Ameriprise Financial, Royal Bank of Canada, New York Times, AOL, TE Connectivity, Goodyear, Starwood, Educational Testing Service and the Toronto-Dominion Bank. Mr. Oser’s six years of prior experience as a systems analyst and director for an information services department of the Office of the Mayor of New York City provides him with unique perspectives on technology transactions. Mr. Oser has substantial experience representing both technology consumers and vendors. He speaks frequently on structuring complex outsourcing arrangements.
Representative Experience
- Represented global manufacturing company in connection with a global infrastructure and applications outsourcing (value $500 million).
- Represented global financial services company, providing full legal support for all strategic transactions in connection with a new on-line loan origination offering.
- Represented global financial services company in a global facilities management outsourcing (value $500 million).
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- Has undertaken numerous high-profile technology transactions, including major outsourcings and technology transactions for American Express, Ameriprise, Goldman Sachs, Goodyear, Starwood, Educational Testing Service and the Toronto-Dominion Bank.
Professional Highlights
- Recognized by Best Lawyers (published by BL Rankings LLC), for Technology Law (2023–2026).
- Chambers USA, Outsourcing—Nationwide (2007–2024), Technology & IT Outsourcing—DC (2006–2024); Chambers Global, Outsourcing—USA (2009–2026); The Legal 500 U.S., Outsourcing—Leading Lawyer (2008–2019); Hall of Fame (2020–2025).
- PLC Which Lawyer?, Outsourcing—National (2008–2009, 2011–2012).
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Associations
- American Bar Association
- New York Bar Association
Education
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J.D., St. John's University School of Law, 1989
M.P.A., New York University, 1985
B.A., University at Albany, State University of New York, 1983
Admissions
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New York
District of Columbia