Corporate
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A Leader in Venture Financings
Wilson Sonsini is ranked as the No. 1 law firm in the U.S. and globally based on the number of company-side venture financing rounds raised for clients in 2025. (Source: LSEG Global Legal Private Equity and Venture Capital Review, Full Year 2025)
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Ranked Among the Top Capital Markets Advisors to Companies and Underwriters
We are consistently ranked by Bloomberg, Thomson Reuters, and CapitalIQ as a leading advisor to companies and underwriters based on the number of completed IPOs and equity and equity-linked offerings. Over the past 20 years, the firm has represented some of the world’s most iconic companies in such transactions, including Google, LinkedIn, Twitter, and Lyft.
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Advise on Hundreds of M&A Deals Annually
In 2025, Wilson Sonsini advised on more than 150 announced and/or completed M&A deals with an aggregate disclosed value of $100 billion.
Wilson Sonsini Goodrich & Rosati is the premier legal advisor to technology, life sciences, and growth enterprises worldwide, as well as the venture firms, private equity firms, and investment banks that finance them. We represent companies at every stage of development, from entrepreneurial start-ups to multibillion-dollar global corporations. The firm's attorneys collaborate across a comprehensive range of practice areas and industry groups to help the management, boards of directors, shareholders, and in-house counsel of our clients address their most pressing challenges and pursue their most promising opportunities.
Wilson Sonsini is nationally recognized for providing high-quality services to address the legal solutions required by its enterprise and financial institution clients. Our services include corporate law and governance, public and private offerings of equity and debt securities, mergers and acquisitions, joint ventures and strategic alliances, technology licensing and other intellectual property transactions, tax, employee benefits, and other corporate transactional areas.
Our clients are companies and other entities that compete in rapidly developing and innovative industries, including the biotech, communications, digital media, energy, financial services, medical devices, and software sectors.
Overview
Wilson Sonsini Goodrich & Rosati is the premier legal advisor to technology, life sciences, and growth enterprises worldwide, as well as the venture firms, private equity firms, and investment banks that finance them. We represent companies at every stage of development, from entrepreneurial start-ups to multibillion-dollar global corporations. The firm's attorneys collaborate across a comprehensive range of practice areas and industry groups to help the management, boards of directors, shareholders, and in-house counsel of our clients address their most pressing challenges and pursue their most promising opportunities.
Wilson Sonsini is nationally recognized for providing high-quality services to address the legal solutions required by its enterprise and financial institution clients. Our services include corporate law and governance, public and private offerings of equity and debt securities, mergers and acquisitions, joint ventures and strategic alliances, technology licensing and other intellectual property transactions, tax, employee benefits, and other corporate transactional areas.
Our clients are companies and other entities that compete in rapidly developing and innovative industries, including the biotech, communications, digital media, energy, financial services, medical devices, and software sectors.
Newsletters
All Eyes on AI: Regulatory, Litigation, and Transactional Developments – Q1 2026
Wilson Sonsini is pleased to present the next edition of All Eyes on AI: Regulatory, Litigation, and Transactional Developments, which closely follows the evolving regulatory landscape for artificial intelligence (AI) in the U.S., new EU regulations for AI, international developments, litigation, recent deal highlights, firm publications, and other AI and machine learning highlights.
Client Highlights
Firm Advises QCi on Acquisition of NHanced
On June 22, 2026, Quantum Computing Inc. (QCi), an innovative, quantum optics and integrated photonics technology company, announced the completion of acquiring NHanced Semiconductors for a combination of cash and QCi stock valued at $73.1 million, subject to customary adjustments, and up to an additional $72.0 million if certain performance targets are achieved. Wilson Sonsini Goodrich & Rosati advised QCi on the transaction.
Client Highlights
Wilson Sonsini Advises Clair Health on $11.6 Million Seed Round
On June 17, 2026, San Francisco-based Clair Health, a wellness wearable start-up designed to monitor hormones, announced an $11.6 million seed round led by Khosla Ventures, with participation from a16z speedrun, Brydge Club, TreeHub, Cartan Capital, AGI House, Insiders VC, and Anne Wojcicki. Wilson Sonsini Goodrich & Rosati advised Clair Health on the transaction.
Client Highlights
Wilson Sonsini Advises SandboxAQ on Agreement with the U.S. Department of Commerce for $500 Million CHIPS R&D Award
On June 17, 2026, SandboxAQ announced a definitive agreement with the U.S. Department of Commerce's CHIPS Research and Development Office for a $500 million award to address one of the most urgent challenges in American manufacturing: the foreign control of critical materials and chemistries that are essential to semiconductor manufacturing. Wilson Sonsini Goodrich & Rosati advised SandboxAQ on the transaction.
Alerts
Delaware Court of Chancery Interprets New Section 144 and Applies Heightened Presumption of Director Independence
On June 15, 2026, the Delaware Court of Chancery issued an Opinion interpreting Section 144 of the Delaware General Corporation Law (the DGCL), the landmark statutory measure adopted last year to provide safe harbors for certain conflicted transactions and address director independence, among other reforms.1 The Opinion arose in a common context in Delaware stockholder litigation: claims over director and management compensation. In the decision, Vice Chancellor Lori W. Will applied, for the first time, the statute’s heightened presumption of independence for directors of public companies determined by the board to be independent under the relevant NYSE or Nasdaq listing standards to dismiss derivative claims on demand futility grounds.
Client Highlights
Wilson Sonsini Advises Energy Dome on Collaboration Agreement with Salt River Project
On June 15, 2026, Energy Dome, a leading provider of innovative capacity solutions for utilities and AI infrastructure, and Salt River Project (SRP), a not-for-profit public power utility serving the greater Phoenix metropolitan area, announced an agreement to add a 19-megawatt, 10-hour carbon dioxide-based battery system to the grid. The project is part of Google and SRP’s innovative collaboration to accelerate deployment of non-lithium-ion long-duration energy storage technologies that support reliability, affordability, and sustainability. Wilson Sonsini Goodrich & Rosati advised Energy Dome on the transaction.
Insights
Newsletters
All Eyes on AI: Regulatory, Litigation, and Transactional Developments – Q1 2026
Wilson Sonsini is pleased to present the next edition of All Eyes on AI: Regulatory, Litigation, and Transactional Developments, which closely follows the evolving regulatory landscape for artificial intelligence (AI) in the U.S., new EU regulations for AI, international developments, litigation, recent deal highlights, firm publications, and other AI and machine learning highlights.
Client Highlights
Firm Advises QCi on Acquisition of NHanced
On June 22, 2026, Quantum Computing Inc. (QCi), an innovative, quantum optics and integrated photonics technology company, announced the completion of acquiring NHanced Semiconductors for a combination of cash and QCi stock valued at $73.1 million, subject to customary adjustments, and up to an additional $72.0 million if certain performance targets are achieved. Wilson Sonsini Goodrich & Rosati advised QCi on the transaction.
Client Highlights
Wilson Sonsini Advises Clair Health on $11.6 Million Seed Round
On June 17, 2026, San Francisco-based Clair Health, a wellness wearable start-up designed to monitor hormones, announced an $11.6 million seed round led by Khosla Ventures, with participation from a16z speedrun, Brydge Club, TreeHub, Cartan Capital, AGI House, Insiders VC, and Anne Wojcicki. Wilson Sonsini Goodrich & Rosati advised Clair Health on the transaction.
Client Highlights
Wilson Sonsini Advises SandboxAQ on Agreement with the U.S. Department of Commerce for $500 Million CHIPS R&D Award
On June 17, 2026, SandboxAQ announced a definitive agreement with the U.S. Department of Commerce's CHIPS Research and Development Office for a $500 million award to address one of the most urgent challenges in American manufacturing: the foreign control of critical materials and chemistries that are essential to semiconductor manufacturing. Wilson Sonsini Goodrich & Rosati advised SandboxAQ on the transaction.
Alerts
Delaware Court of Chancery Interprets New Section 144 and Applies Heightened Presumption of Director Independence
On June 15, 2026, the Delaware Court of Chancery issued an Opinion interpreting Section 144 of the Delaware General Corporation Law (the DGCL), the landmark statutory measure adopted last year to provide safe harbors for certain conflicted transactions and address director independence, among other reforms.1 The Opinion arose in a common context in Delaware stockholder litigation: claims over director and management compensation. In the decision, Vice Chancellor Lori W. Will applied, for the first time, the statute’s heightened presumption of independence for directors of public companies determined by the board to be independent under the relevant NYSE or Nasdaq listing standards to dismiss derivative claims on demand futility grounds.
Client Highlights
Wilson Sonsini Advises Energy Dome on Collaboration Agreement with Salt River Project
On June 15, 2026, Energy Dome, a leading provider of innovative capacity solutions for utilities and AI infrastructure, and Salt River Project (SRP), a not-for-profit public power utility serving the greater Phoenix metropolitan area, announced an agreement to add a 19-megawatt, 10-hour carbon dioxide-based battery system to the grid. The project is part of Google and SRP’s innovative collaboration to accelerate deployment of non-lithium-ion long-duration energy storage technologies that support reliability, affordability, and sustainability. Wilson Sonsini Goodrich & Rosati advised Energy Dome on the transaction.
Affiliated Programs
NASDAQ International Go-To-Market Bootcamp 2026
Wilson Sonsini invites you to the third Bootcamp co-hosted by the Nasdaq Entrepreneurial Center and KPMG. Executive Advisor Ken Siegel and industry leaders will share practical guidance and proven strategies for navigating global markets.
WSGR Events
Coming to America Series: Hiring and Scaling a US Team: What U.K. Companies Need to Know When Expanding
Wilson Sonsini is pleased to invite you to a panel discussion in London designed specifically for UK-based companies planning to expand operations into the U.S. This session will provide a practical overview of the key operational, strategic, and legal considerations when hiring employees in the U.S. This workshop is ideal for founders, HR leaders, legal teams, and executives responsible for U.S. expansion strategy.
Affiliated Programs
Infocast Transmission & Interconnection Summit 2026
Join Wilson Sonsini at the Transmission & Interconnection Summit presented by Infocast in Washington D.C. June 23-25. On June 23, Matt Christiansen will moderate the panel "Developing new Large Load Interconnection Paradigms - Impacts of 'Speed to Power' and Other Initiatives on Flexibility, Cost Allocation, and Queue Management," and Sarah Greenberg will moderate the panel "Best Practices in Interconnection: Comparing Approaches of RTOs & Transmission Owners."
Events
Affiliated Programs
NASDAQ International Go-To-Market Bootcamp 2026
Wilson Sonsini invites you to the third Bootcamp co-hosted by the Nasdaq Entrepreneurial Center and KPMG. Executive Advisor Ken Siegel and industry leaders will share practical guidance and proven strategies for navigating global markets.
WSGR Events
Coming to America Series: Hiring and Scaling a US Team: What U.K. Companies Need to Know When Expanding
Wilson Sonsini is pleased to invite you to a panel discussion in London designed specifically for UK-based companies planning to expand operations into the U.S. This session will provide a practical overview of the key operational, strategic, and legal considerations when hiring employees in the U.S. This workshop is ideal for founders, HR leaders, legal teams, and executives responsible for U.S. expansion strategy.
Affiliated Programs
Infocast Transmission & Interconnection Summit 2026
Join Wilson Sonsini at the Transmission & Interconnection Summit presented by Infocast in Washington D.C. June 23-25. On June 23, Matt Christiansen will moderate the panel "Developing new Large Load Interconnection Paradigms - Impacts of 'Speed to Power' and Other Initiatives on Flexibility, Cost Allocation, and Queue Management," and Sarah Greenberg will moderate the panel "Best Practices in Interconnection: Comparing Approaches of RTOs & Transmission Owners."
Lester Ang
Partner
Lester Ang is a corporate and securities partner in the Palo Alto office of Wilson Sonsini, where he works with private and public technology and life sciences companies through all stages of their growth, as well as with venture capital firms and private equity firms.
Brian Appel
Partner
Brian Appel is a partner in the Palo Alto office of Wilson Sonsini Goodrich & Rosati, where he practices corporate and securities law. He advises companies on general corporate matters, including formation and operation, corporate governance, debt and equity financings, mergers and acquisitions, and securities-related matters. He has assisted early-stage companies in numerous capital-raising transactions, including venture capital financings.
Megan J. Baier
Partner
Megan represents technology and life sciences clients in corporate transactional matters.
Mark Bass
Partner
Mark Bass is a partner in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where he works with public and private technology companies at all stages of growth. He also represents venture capital funds, private equity firms, and investment banks in financings and public offerings.
Mark B. Baudler
Partner
Mark is a corporate law veteran, having advised start-ups and mature public companies for more than 25 years.
Steven V. Bernard
Partner
Steve has represented non-U.S. and domestic companies in U.S. IPOs, global securities offerings, cross-border M&A, and SEC compliance for more than 25 years.
Ashmi Bhagani
Partner
Ashmi Bhagani is a partner in the London office of Wilson Sonsini Goodrich & Rosati, where she has a diverse transatlantic corporate and securities practice focused on the technology and life sciences sectors.
Richard C. Blake
Partner
Richard has a comprehensive corporate law background, with extensive experience in public offerings.
Lance E. Brady
Partner
Lance Brady is a partner in Wilson Sonsini Goodrich & Rosati's Palo Alto office, where his practice focuses on representing public and private life sciences and technology companies through all stages of their growth. Lance advises his clients on a broad variety of transactions and corporate matters, including initial formation and organization, equity and debt financings, mergers and acquisitions, public offerings, spin-outs, corporate governance, SEC compliance and public company reporting requirements. He also has extensive experience representing venture capital and other institutional investors in financing transactions.
Jason Breen
Partner
Jason Breen is a partner in the Los Angeles office of Wilson Sonsini Goodrich & Rosati, where he represents public and private companies at all stages of growth in M&A transactions, primarily working with clients in the life sciences and technology industries. Jason also represents venture capital, growth equity, and private equity funds and focuses on other strategic transactions, including divestitures, joint ventures, and financings.
People
Lester Ang
Partner
Lester Ang is a corporate and securities partner in the Palo Alto office of Wilson Sonsini, where he works with private and public technology and life sciences companies through all stages of their growth, as well as with venture capital firms and private equity firms.
Brian Appel
Partner
Brian Appel is a partner in the Palo Alto office of Wilson Sonsini Goodrich & Rosati, where he practices corporate and securities law. He advises companies on general corporate matters, including formation and operation, corporate governance, debt and equity financings, mergers and acquisitions, and securities-related matters. He has assisted early-stage companies in numerous capital-raising transactions, including venture capital financings.
Megan J. Baier
Partner
Megan represents technology and life sciences clients in corporate transactional matters.
Mark Bass
Partner
Mark Bass is a partner in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where he works with public and private technology companies at all stages of growth. He also represents venture capital funds, private equity firms, and investment banks in financings and public offerings.
Mark B. Baudler
Partner
Mark is a corporate law veteran, having advised start-ups and mature public companies for more than 25 years.
Steven V. Bernard
Partner
Steve has represented non-U.S. and domestic companies in U.S. IPOs, global securities offerings, cross-border M&A, and SEC compliance for more than 25 years.
Ashmi Bhagani
Partner
Ashmi Bhagani is a partner in the London office of Wilson Sonsini Goodrich & Rosati, where she has a diverse transatlantic corporate and securities practice focused on the technology and life sciences sectors.
Richard C. Blake
Partner
Richard has a comprehensive corporate law background, with extensive experience in public offerings.
Lance E. Brady
Partner
Lance Brady is a partner in Wilson Sonsini Goodrich & Rosati's Palo Alto office, where his practice focuses on representing public and private life sciences and technology companies through all stages of their growth. Lance advises his clients on a broad variety of transactions and corporate matters, including initial formation and organization, equity and debt financings, mergers and acquisitions, public offerings, spin-outs, corporate governance, SEC compliance and public company reporting requirements. He also has extensive experience representing venture capital and other institutional investors in financing transactions.
Jason Breen
Partner
Jason Breen is a partner in the Los Angeles office of Wilson Sonsini Goodrich & Rosati, where he represents public and private companies at all stages of growth in M&A transactions, primarily working with clients in the life sciences and technology industries. Jason also represents venture capital, growth equity, and private equity funds and focuses on other strategic transactions, including divestitures, joint ventures, and financings.
Related Practices
- Capital Markets
- Corporate Governance
- Corporate Life Sciences
- Emerging Companies and Venture Capital
- Employee Benefits and Compensation
- Energy and Climate Solutions
- Finance and Structured Finance
- Fund Formation
- Greater China
- Life Sciences Business Advisory Practice
- Mergers & Acquisitions
- Private Equity
- Public Company Representation
- Real Estate
- Restructuring
- Shareholder Engagement and Activism
- Special Purpose Acquisition Companies (SPACs)
- Tax
- U.S. Expansion
Recent Insights
Newsletters
All Eyes on AI: Regulatory, Litigation, and Transactional Developments – Q1 2026
Wilson Sonsini is pleased to present the next edition of All Eyes on AI: Regulatory, Litigation, and Transactional Developments, which closely follows the evolving regulatory landscape for artificial intelligence (AI) in the U.S., new EU regulations for AI, international developments, litigation, recent deal highlights, firm publications, and other AI and machine learning highlights.
Learn More
Client Highlights
Firm Advises QCi on Acquisition of NHanced
On June 22, 2026, Quantum Computing Inc. (QCi), an innovative, quantum optics and integrated photonics technology company, announced the completion of acquiring NHanced Semiconductors for a combination of cash and QCi stock valued at $73.1 million, subject to customary adjustments, and up to an additional $72.0 million if certain performance targets are achieved. Wilson Sonsini Goodrich & Rosati advised QCi on the transaction.
Learn More
Recent Events
Affiliated Programs
NASDAQ International Go-To-Market Bootcamp 2026
Wilson Sonsini invites you to the third Bootcamp co-hosted by the Nasdaq Entrepreneurial Center and KPMG. Executive Advisor Ken Siegel and industry leaders will share practical guidance and proven strategies for navigating global markets.
Learn More
Newsletters
2024 Mid-Year Technology and Life Sciences PIPE and RDO Report
Wilson Sonsini Goodrich & Rosati is pleased to present the 2024 Mid-Year Technology and Life Sciences PIPE and RDO Report, analyzing 124 private investments in public equity (PIPEs) and registered direct offerings (RDOs) by U.S.-based tech and life science companies between January 1 and June 30, 2024.
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