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  • M&A and Private Equity

Sara Gates Associate M&A and Private Equity

Silicon Valley

Sara Gates is an associate in the Silicon Valley Office and a member of the firm's corporate group.

Sara focuses primarily on corporate governance issues as well as mergers and acquisitions, private equity transactions and capital markets.



  • Energy & Infrastructure
  • M&A and Private Equity
  • Power
  • Renewable Energy
  • Oil & Gas
  • Corporate

Bradford Gathright Partner Energy & Infrastructure, M&A and Private Equity


Brad focuses on project development and finance matters and corporate transactions in the energy industry, primarily in the conventional and renewable power and midstream oil and gas sectors.

He represents investors and developers in a broad range of transactions, including mergers and acquisitions, joint ventures, private equity investments and other commercial transactions involving the development, construction, financing, acquisition, sale and investment in power generation, exploration, production, storage, transportation, distribution, marketing and other energy-related projects and businesses.



  • Cyber, Privacy & Data Innovation
  • Complex Litigation & Dispute Resolution
  • White Collar, Investigations, Securities Litigation & Compliance
  • CCPA Readiness

Nicole Gelsomini Associate Cyber, Privacy & Data Innovation, Complex Litigation & Dispute Resolution

San Francisco

Nicole Gelsomini is an associate in Orrick’s San Francisco office. Her practice spans cybersecurity and privacy matters, complex commercial disputes, and government and internal investigations.

Nicole has defended companies in class action litigation and government enforcement following the announcement of cybersecurity and privacy incidents, as well as the initial investigation of potential incidents. She has also represented clients in securities, antitrust, and other commercial disputes. Prior to law school, Nicole worked as a teacher and for Teach For America.


  • M&A and Private Equity

Matthew Gemello Partner M&A and Private Equity

Silicon Valley

Matthew Gemello, a corporate partner in the Silicon Valley office, is a member of Orrick's M&A and Private Equity group.

A seasoned deal lawyer, Matthew guides global technology companies and their financial sponsors through transformational domestic and cross-border transactions. 

Matthew has been recognized as a leading lawyer by Legal 500 and Super Lawyers Northern California, and was selected by the San Francisco and Los Angeles Daily Journal (2015) as one of the top 10 Innovative Corporate Lawyers in California.

Prior to joining Orrick, Matthew was a partner at a global law firm, where he was chair of the firm’s North America corporate and securities practice and chair of its North America pro bono practice.



  • Energy
  • M&A and Private Equity
  • Infrastructure
  • Corporate
  • Corporate Governance
  • Project Finance
  • Corporate Lending
  • Banking & Finance

Andrea Gentili Of Counsel Energy, M&A and Private Equity

Milan; Rome

Andrea's practice focuses mainly on renewable energy, in Italy and abroad.

Andrea regularly works on M&A and private equity transactions in the energy and infrastructure industries, assisting sponsors, developers and investors in the acquisition or sale of totality, majority or minority shareholdings, and in project construction/management related matters. He has advised on projects in Italy, the UK, Romania, Greece, Bulgaria, Ghana and Namibia.

Andrea also has significant experience in financing transactions, having assisted various sponsors in a number of project finance, asset finance, refinancing and leasing transactions. He assists clients in drafting and negotiating all transaction documents, including share purchase agreements, joint venture agreements, shareholders' agreements, facility agreements, PPAs, EPC and O&M agreements. Andrea also counsels clients on general corporate matters and day-to-day operating matters, including contracts management and a host of related legal matters.

Andrea has also drafted and negotiated several settlement agreements for disputes arisen between owners and contractors in relation to the construction of power plants, and participated in international arbitrations on these matters.

Andrea is lecturer at the training course “The EGP school of business development program” promoted by Enel Green Power, dedicated to its Business Development professionals and delivered by SDA Bocconi School of Management, the Business School of Bocconi University. Andrea focuses his lessons on international business contracts, joint venture and acquisition agreements. 



  • Energy
  • Infrastructure
  • Africa
  • M&A and Private Equity

Nicholas George Partner Energy, Infrastructure


Nick’s clients include industrial corporations, government entities, financial institutions and infrastructure investment funds. He also advises on cross-border M&A transactions in his specialist sector areas. He has a particular interest in renewable energy projects.

Nick has been involved on major operations such as the construction of the world’s largest dam, Inga 3, in the Democratic Republic of Congo, a $500 million 144A/Regulation S bond issuance for Millicom International Cellular S.A., a leading telecommunication operator in emerging markets, and the financing by the Agence Française de Développement for a 5.9 MW photovoltaic plant in Benin.

Before joining Orrick, Nick spent 16 years working at another international law firm. He is admitted to the Paris Bar as a Solicitor of England and Wales.



  • Technology Companies Group
  • Corporate

Alex Gest Managing Associate Technology Companies Group, Corporate


Alex assists clients, ranging from companies to shareholders to investors, on corporate and securities matters with an emphasis on venture capital and growth equity, domestic and cross-border mergers and acquisitions, growth debt financings and shareholder agreements and arrangements.

Prior to joining Orrick, Alex trained and worked at an international city law firm for five years with an emphasis on the technology sector and at a US law firm for one year.



  • Employment Law & Litigation

Hannah M. Ghaffari Managing Associate Employment Law & Litigation

Silicon Valley

Employment lawyer Hannah Ghaffari takes each case’s legal, business and interpersonal elements into account. By approaching her case through the emotional and professional lens of all parties involved, she’s able to offer a more successful path to resolution.

Her cases involve a wide range of employment issues, such as wage and hour, pay equity, and discrimination disputes. Hannah also offers targeted counseling to help employers avoid and mitigate risk throughout the year.

In addition to employment, she has handled various business disputes, including breach of contract disputes on behalf of Microsoft, a defamation case, and a high-profile right of publicity case. She also represented Oracle in Oracle v. Google, a multi-billion dollar copyright trial.

Hannah is also active in Orrick’s pro bono program, having represented individuals seeking asylum in the United States and an individual seeking enforcement of a family support order in New York Family Court. She currently represents a family that was separated at the U.S. border.

  • D: +33 1 5353 7500


  • Employment Law & Litigation

Léa Ghoreychi Associate Employment Law & Litigation


Léa Ghoreychi is an employment lawyer in Orrick's Paris office.

Léa advises French and international companies on all matters related to French employment law.

Prior to joigning Orrick, Léa worked on employment matters as a legal intern at Bird & Bird, Cornet Vincent Ségurel and HR Avocats. She also interned at the Human Resources department of the French Red Cross.



  • Structured Finance
  • Banking & Finance

Gianrico Giannesi Partner Structured Finance, Banking & Finance


Gianrico Giannesi is an Italian qualified lawyer based in Orrick’s Rome office. He is Deputy Head of the Italian Finance team.

His practice is focused on debt capital market and structured finance transactions, with a particular emphasis on CMBS, RMBS, CBO transactions, securitisation of leasing, consumer loans, commercial receivables, public receivables, trade receivables, healthcare receivables, tax receivables and non performing receivables.

Gianrico is also specialised in Minibond issuance, having advised the main Minibond market players on several of the first Minibond issues on the Italian market.

He regularly advises the leading Italian and international banks acting as arrangers, lead managers and originators.

Gianrico is ranked among the key individuals in Chambers and Partners (Europe) in Banking & Finance and Debt Capital Markets: Securitisation. In The Legal 500 (EMEA), he is considered among the key advisers for Debt Capital Markets.

He is a lecturer in Master courses organised by LUISS Business School University (Rome) and is regular speaker at conferences and seminars on financial law topics.



  • Banking & Finance
  • Structured Finance

Giovanbattista Gianni Associate Banking & Finance, Structured Finance


Giovanbattista Gianni is a banking and finance lawyer in Orrick's Paris office.

Giovanbattista advises French and international credit and financial institutions as well as sponsors and borrowers on French and cross-border financings, structured finance transactions and restructurings related to existing financings.

Prior to joining Orrick, Giovanbattista was a student apprentice in a major portfolio management company and an intern in a Magic Circle law firm. Giovanbattista has also practiced as junior legal counsel in the French branch of a leading US credit institution & investment firm.



  • Employment Law & Litigation
  • Traditional Labor Law

John Giansello Counsel Employment Law & Litigation, Traditional Labor Law

New York

John D. Giansello III is resident in the New York office and a member of the employment law group.

Orrick’s Employment Law and Litigation group was recently named Labor & Employment Department of the Year in California by The Recorder, the premier source for legal news, in recognition of their significant wins on behalf of leading multinational companies on today’s most complex and challenging employment law matters.

He has considerable experience in and knowledge of litigation and counseling related to the hiring, firing, retention, management and promotion of employees.