Mark Seneca, Partner, M&A and Private Equity at Orrick, Herrington & Sutcliffe LLP

Mark Seneca

Partner, M&A and Private Equity at Orrick, Herrington & Sutcliffe LLP | Menlo Park, California, United States

Profile last verified July 2026
Law Practice Verified Profile Menlo Park, California, United States Stanford Law School
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Work Email

***@orrick.com

Last verified August 2026

Phone Number

571*****

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Mark Seneca Socials
Mark Seneca Work Experience

Partner, M&A and Private Equity at Orrick, Herrington & Sutcliffe LLP in January 2007 - Present

Senior Associate at Venture Law Group in January 1999 - December 2005

Corporate Associate at Latham & Watkins in January 1995 - December 1999

Mark Seneca Education

Stanford Law School, August 1992 to August 1995

Stanford University Graduate School of Business, August 1995

Brigham Young University, August 1990

About Mark Seneca’s Current Company
Orrick, Herrington & Sutcliffe LLP

Orrick is a global law firm focused on serving the Technology & Innovation, Energy & Infrastructure, Finance and Life Sciences & HealthTech sectors. Leading companies and new entrants call on our teams in 25+ markets worldwide for forward-looking, pragmatic advice on transactions, litigation and compliance matters. We bring distinctive quality, teamwork, and value to the table – and innovate in everything we do. We’re especially focused on attracting and inspiring the best legal talent.

Discover more about Orrick, Herrington & Sutcliffe LLP
Mark Seneca’s Colleagues
Katie Tarvardian

Katie Tarvardian

Washington, District of Columbia, United States

Energy and Infrastructure M&A Associate

Associate at Orrick, Herrington & Sutcliffe LLP
(August 2025 – Present)

Mayeul L

Mayeul L

Paris, Île-de-France, France

Associate - Orrick, Herrington & Sutcliffe

Managing Associate (Technology Companies Group) at Orrick, Herrington & Sutcliffe LLP
(April 2025 – Present)

Asalia Scheibner

Asalia Scheibner

Germany

Associate at Orrick, Herrington & Sutcliffe LLP

Associate at Orrick, Herrington & Sutcliffe LLP
(September 2024 – Present)

Jonathan Roheim

Jonathan Roheim

Carmel, California, United States

Partner at Orrick, Herrington & Sutcliffe LLP

Partner at Orrick, Herrington & Sutcliffe LLP
(January 2017 – Present)

Santiago Assalini

Santiago Assalini

Miami, Florida, United States

Partner at Orrick | M&A | Private Equity

Partner at Akerman LLP
(November 2022 – Present)

Megan Mcknelly

Megan Mcknelly

Washington, District of Columbia, United States

Attorney at Orrick, Herrington & Sutcliffe LLP

Managing Associate at Orrick, Herrington & Sutcliffe LLP
(June 2025 – Present)

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Frequently asked questions about Mark Seneca

What is Mark W Seneca email address?

Email Mark W Seneca at [email protected]. This email is the most updated Mark W Seneca's email found in 2026.

What is Mark W Seneca phone number?

Mark W Seneca phone number is 5712149602.

How to contact Mark W Seneca?

To contact Mark W Seneca send an email to [email protected]. If you want to call Mark W Seneca try calling on 5712149602. (updated on July 2026)

What company does Mark Seneca work for?

Mark Seneca works for Orrick, Herrington & Sutcliffe LLP.

What is Mark Seneca's role at Orrick, Herrington & Sutcliffe LLP?

Mark Seneca is Partner, M&A and Private Equity

What industry does Mark Seneca work in?

Mark Seneca works in the Law Practice industry.

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