He is endorsed by numerous judges, attorneys, and community members including the Judge who currently holds Office 7.

Raised in downtown San Jose, Mattia is a fifth-generation resident whose roots in Santa Clara County reach back to the 1880s. From his great-great-grandfather, a local rancher and postman, to his grandfather, Dr. Victor “Vic” Corsiglia—who was honored in the Congressional Record for his 62 years of medical and civic service—Mattia’s journey has been guided by a simple principle: Do what is right.
From Corporate Law to Public Service: After six years at a major corporate law firm in Palo Alto, Mattia’s urge to serve led him to leave the private sector to serve the public interest. For the past 11 years, he has served as a line prosecutor for the County of Santa Clara, most recently handling complex white-collar crime and fraud cases.
The Principle: Every Case Matters. Whether working on behalf of victims or ensuring fairness for defendants, Mattia believes in doing what is right—every case, every day.


Hon. Christine Garcia-Sen (Retiring From Office No. 7)


— Alaleh Kianerci, Criminal Prosecutor
— Jessica Smith, Criminal Defense Attorney


"I am running to serve our community with honesty and integrity. Behind every case is a person—a mother, father, or sibling—who deserves respect. My commitment is simple: Every person and case matters. I will do right by victims and defendants alike—every case, every day."
Hon. Meghan Piano, Judge of the Superior Court
Hon. Christopher Rudy, Judge of the Superior Court
Hon. Ralph Robles, Judge of the Superior Court
Hon. Nahal Iravani-Sani, Judge of the Superior Court
Hon. Eunice Lee, Judge of the Superior Court
Hon. Luis Ramos, Judge of the Superior Court
Hon. Johnny Cepeda Gogo, Judge of the Superior Court
Hon. Jerome Nadler, Judge of the Superior Court (Ret.)
Hon. Peter H. Kirwan, Judge of the Superior Court (Ret.)
Hon. Julianne Sylva, Judge of the Superior Court (Ret.)
Hon. John A. Flaherty, Judge of the Superior Court (Ret.)
Hon. James E. Towery, Judge of the Superior Court (Ret.)
Hon. Alfonso Fernandez, Judge of the Superior Court (Ret.)
Hon. Rene Navarro, Judge of the Superior Court (Ret.)
Commissioner Bhavit Madhvani
Zoe Lofgren, United States Representative, 18th District
Rod Diridon Sr. (Santa Clara Board of Supervisors, 5 Terms, Board Chair 6 times)
Mayor Judy Nadler (Former Mayor of Santa Clara)
Michael Mulcahy (San José City Councilmember, District 6)
David Pandori (Former San José City Councilmember, District 3)
Leslye Corsiglia (Former Director of Housing, City of San José)
Titles for identification purposes only. Endorsements are made in an individual capacity and do not imply an endorsement by the government agency.
Criminal Prosecutors:
Karyn Sinunu-Towery (ret.)
Alaleh Kianerci
Jimmy Demertzis
Brandon Cabrera
Charlotte Chang
Jay Boyarsky
Terry Harman
James Gibbons-Shapiro
Paul Jhin
Brian Welch
David Angel
Angela Bernhard (ret.)
Steve Dal Porto
Kelly Meeker
Alex Adams
Andrew Miller
Anne Seery
Lindsay Walsh
Brian King
O'Bryan Kenney
Marina Mankaryous
Michael Gilman
Elina Laykhtman
Daniel Okonkwo
Edward (Ed) Liang
Talia Cabrera
Daniel Rothbach
Stacey Capps
Emily Lessard
Michel Amaral
Marisa McKeown
Mike Vidmar
Oanh Tran
Clarissa Hamilton
Kimberly Perrotti
Paola Pretorius
David Shabaglian
Sandip Patel
Sheryl Wu Leung
Christopher Paynter
Matthew Braker
Jason Malinsky
Criminal Defense:
Jessica Smith
Avanindar (Avi) Singh
Agustin Arias
Amanda Snyder
Jaime Alvarez
Alan Lagod
Brendan Barrett
Samuel Gordon
Patrick Coughlin
Kurt Seibert
Sam Polverino
Ghazal Sharif
George Tran
Albie Jachimowicz
Josh Jachimowicz
Chris Boscia
Dmitry Stadlin
Stephanie Rickard
Majeed Samara
Allen C. Speare
Carlos Vega
Mark A. Arnold
Daniel Mayfield
In-House Counsel:
Dan Freed
Alaleh Nouri
Alisha Louie Senescu
Saam Arzang
Sepideh Ghafari
Sean McDonnell (former prosecutor)
Civil Attorneys:
John Marshall Collins
Leo Cunningham
Brian Selden
Alex Giovannotto
Christopher McKinley
Megan Ottoboni McCarthy
Stephen Kottmeier
Jeff Park
Amy Park
Lisa Davis
Donya Dada
Laura Alanis
Julee Rees
Deborah Hedley
Joseph Sweeney
Anne Sweeney Jordan
Taylor Graham
Sam Stockwell
Sasha Fahimi
Linda Hoda
Michael H. Moreno
Myriam Sabry
William R. Bennett
Andrew Malek
Elisa Tolentino
David Pearl
Liam O'Connor
Dan Laidman
Shaila Buckley
Deborah Hedley
Adam Davis
Aiden Welsh
Emilie Reeslund
Esther Pun
Cris Giovannotto
R Todd Johnson
Shannon Hunt-Scott
Marisol Gastelum Ornelas
Joe McCarthy
Ken Rizvi
Joanna Whitley
Erica Fry
Jim Rees
Erin Figueroa
Megan Cristina
Robert Fiscilini Sr.
Kathleen Fiscilini
Denee Fiscalini
Mark Silver
Liz DiNapoli
Stephen Emami
Chuck Hammers
Dr. Kyle Miller
Dr. Jennie Cheesborough
Andro Radonich
Kaycee Radonich
Professor Martin Fischer
Mary Barnard
Nick Travis
Sarah Travis
Ashley Carroll
Chris Szarlacki
Mike Bidgoli
Dr. Jahan Fahimi
Sy Fahimi
Jim L. Zubillaga
Nina Mehdizadeh
Alyssa Rapp
Erica Liu Williams
Cory Barnard
Ying Chen
Cheng Gu
Yangyang Gu
Shiyu Gu
Vanessa Ravizza
Mark Chiavetta
Neda Amidi Bahadi
Reza Bahadi
Tricia Gingery
Matt Gingery
Dr. Reid Senescu
Justin Alanis
Adam Caporn
Dr. Andrew Peterman
Adrianna Aguirre
Bill Loller
Dr. Stephanie Loller
Ron Carroll
Jill Carroll
Christina Acheson
Jeff Birdwell
Mike Halow
Jay Bechtel
Willow Bechtel
Maureen Casey
Lindsay Ramar
Michael Costigan
Dr. Alexander Sywak
Ingrid Sywak
John Brophy
Geoff Jacobson
Joe Carrero
Dion Campisi
Erik Hallgrimson
Aimee Hallgrimson
Nader Mehdizadeh
Nate Jones
Kevin Janda
Jenee Rehrmann
Stephen Rehrmann
Kate Miller
Coy Ross
Denise Ross
Michael Piramoon
Dr. Abe Piramoon
Maureen Piramoon
Shireen Piramoon
Kyla Holcomb Piramoon
Shawn Taheri
Samantha Korsunsky
Eugene Korsunsky
Stacy Strawn
Joey Travis
Dr. Khosrow Mehrany
Manuchehr Mehrany
Brian Barnard
James Foley
Janice Travis
Frankie Taranto
Sheena Anderson Francis
Pete Raykovich
Martha Lehr
Dr. Ryan Lehr
Jose Lemus
Jillian Ahern
Mimi Wainwright
Mahassa Oveyssi
Azita Almasi
Mieka Sywak
Sharry Najafi
Setareh Farsio
Sayareh Farsio
Sally Burnside
Weston Begg
Johnny Cooper
Mary Davidge
Barney Davidge
Jenna Granneman
Andrea Sanchez
Heather Gibson
Jim Gibson
Dr. Shahram Gholami
Neda Gholami
Bryn Asher
Peggy Casey
Khogee Farsio
Terra Hanlon
William Bonhorst
Grace Zhu
Kevin Antonelli
Vanessa Zhang
Homayoun Kianerci
Mina Shamsaei
Ali Mozaffari
Farahnaz (Farbia) Graham
Dr. Jeffrey Fortini McLeroy
Jing Wang
Sima Memari
Soori Arzang
Hossein Arzang
Mackenzie Arzang
Mahnaz Khazen
Fariba Fatemi
Dr. Jaspaul Gogia
Jackson Kaiel
Thomas Miller
Leo Davis
Mitra Ashjaee
Sara Farsio
Roya Bozorgpour
Maryam Boghratian Malek
Chris Gowdy
Paul Glass
Ron Fossum
Shahrooz Razmgah
Shafieh Heidari
Tina Liu
Camelia Fahimi
Dr. Youssef Shakib Fahimi
Dr. Amir Kavousian
Mitra Mahdavian
Susan Moein Azarkhish
Tirath Gill
Lilly Morrison
Dr. Durga Madala
Chanel DeSmet
Nahid Haynes
Cameron Radonich
Mehrbanou Varza
Tania Neydavoud
Megan Polhemus
Hank Soto
Ali Gharani
Joel Pollack
Mitra Ashjaee
Dr. Pramela Ramachandra
David Forestieri
Pasha Fazeli
Nasim Nehawandian
Bin Zheng
Nadia Christian
Afaf Ktait
Amal Hamady
Danny Hamady
Munir Ktait
Mima Goodarz
Nader Ktait
Celina Ni
Farimah Banimahd
Nancy Nehawandian
Jila Khajehnoori
Davood Ghajar Mozaffari
Nahid Haynes
Jacqueline Croft
Mahnaz Roshan
Niki Farsio
Michael Manousos
Don Perry
Karen Horn
Ziba Ghorbani
Parvin Pezeshky
Kourosh Tarighi
Leila Tarighi
Ryan Tarighi
Jacqueline Orlando
Kristyna Orlando
Nacy Sheets
James Halow
Birgit Samdahl
Homa Mojgani
Mehrnaz Hada
Amanda Giordano
Joel Pollack
Cameron Radonich
Henock Kidanu
Maryam Menbari
Kamron Mirzadeh
Azadeh Shirvani
Farnaz Khadiv
Maryam Ghajar Atiea
Dr. Mohammadreza Cheraghzadeh
Setayesh Cheraghzadeh
Fariba Soleimani
Shahrzad Salour
Dr. Jagat Satia
Sheva Neinavaie
Reza Mirzadeh
Walt Stephenson
Moji Hemati
Yayu Lin
Iraj Naderi
Brian Verbaken
Dr. Billy Martin
Cyrus Mousavi
Amir Farsio
Neda Majlesi
Dr. Samantha Alimardani
Bahar Ghoreishi
Rudie Guerrero
Cynthia Rotwein
Vince Castro
Michael LoMonaco
Reza Ghorbani
Javad Roshan
Nicole Rinsky
Merissa Knuth
Pranav Atluri
Daniel Jung
Jen Brady
Simin Mirza
Kathy Bamdad
Rafi Bamdad
Rana Alan
Mike Giovannotto
Peter Giovannotto
With 17 years of legal experience, including 11 years as a Deputy District Attorney and six years in private practice at a top-tier global firm, Mattia has the depth of knowledge required for the Superior Court bench. As a prosecutor, he has led some of the state’s most complex cases, recovering tens of millions for victims of white-collar crime and earning national recognition for his work.
"Mattia was my first mentor when I joined a Vault 20 law firm in Palo Alto as a brand new lawyer. Mattia did not take the role of mentorship lightly and spent hours upon hours teaching me everything from how to introduce evidence to how to write an email delivering difficult news to a client, often on cases where he could not bill his time. In doing so, Mattia taught me the most important lesson: it’s each of our job, as officers of the court, to make the legal profession a better one. Mattia is the walking embodiment of the judicial temperament. He is patient and thoughtful but also not afraid of tough decisions. It is a pleasure to endorse him for the bench."
"There are people with good character, and there are people with great character. Mattia Corsiglia is the latter, and he is a superb candidate for Judge in Santa Clara County. The endorsements he has earned from the incumbent and from respected colleagues on both sides of the courtroom are more than compelling, they are decisive. Mattia brings the integrity, sound judgment, and steady temperament our courts require, and I am proud to endorse him."
"After working with Mattia in the criminal justice system for over a decade, I know he has the legal knowledge, compassion, and strong work ethic needed to be a great judge. As someone who is a resident of Santa Clara County, I am confident he will make the right decisions and continue to be a strong leader for our community from the bench."
"Mattia is one of the best human beings I have ever had the pleasure of knowing. He is incredibly smart, caring and a true steward of the law. The county would be incredibly lucky to have him as a judge."
"Mattia is a dedicated legal advocate and will make a phenomenal judge for the community!"
"I’ve known Mattia for over 25 years. He is a man of integrity, dignity, honesty and hard work. Mattia always puts others first, he will fight for justice and humanity. It’s with great honor to endorse Mattia."
"Mattia is an outstanding member of our community and an exemplary individual. He would make an outstanding Judge."
"I unreservedly endorse Mattia Corsiglia. His extensive experience, engagement with the Santa Clara County community, innate sense of fairness and principled approach to the law make him an exceptional addition to the bench."
"I worked alongside Mattia at the DA’s office and am proud to give him my full endorsement. The superior court bench would be fortunate to have such a quality human and attorney serving the residents of this county."
"I worked with Mr. Corsiglia on the Santa Clara County Bar Association’s Judiciary Committee. His preparedness, thoughtfulness, and keen insight were instrumental components of the Committee’s success. Those talents and his immense experience as a civil attorney and prosecutor make him an exceptional candidate for the bench, to which he would be a fantastic addition."
"Mattia Corsiglia has the experience, judgment, and integrity required of a Superior Court Judge, and I fully support his candidacy in Santa Clara County."
"Mattia is an excellent attorney, and a wonderful person. His dedication to public service and serving the people of Santa Clara County is evident in both his work as a prosecutor, and his volunteer work in the community. Mattia will make an excellent judge. He is intelligent, compassionate, and has an amazing legal mind. It’s an honor to endorse him."
"It is an honor to be able to endorse Mattia Corsiglia for Judge. His incredible character, intellect, ethics, and integrity will make him a truly wonderful addition to the bench. Our community would be so fortunate to have him serve in this way and I know without question it is something he will take with great care and great humility. I wholeheartedly endorse him."
"I have known Mattia Corsiglia for over 15 years. He is a kind, caring person who always wants to do what is best for everyone around him. He is calm, thoughtful, and committed to his community. He has the integrity to consider all perspectives in order to make the best decisions. He will be a wonderful addition to the Superior Court."
"In my experience, Mattia is not afraid to tackle complex subject matters and take the time necessary to understand all sides of an issue. His level-headed approach to cases and benevolent nature make him well-suited for the judiciary. Santa Clara Superior Court and its litigants would be lucky to have him!"
"I proudly endorse Mattia Corsiglia for Judge. He is deeply rooted in Santa Clara County and brings a rare blend of integrity, experience, and commitment to public service. For more than a decade, he has protected our community by prosecuting complex fraud and white-collar crimes and returning significant restitution to victims. Mattia is thoughtful, fair, and principled. I trust him to do what is right in every case, every day."
"My family and I have known Mattia for over 20 years. I am 92 years old, and in all my lifetime, I have never encountered anyone more dedicated, hardworking, or honest—someone who also possesses such an exceptionally kind and generous heart. We would be truly fortunate to have Mattie serve as a judge."
"I proudly endorse Mattia Corsiglia for Judge. As a District Attorney he has shown sound judgment, integrity, and a deep respect for the law—qualities our court needs."
"Mr. Corsiglia will make a fantastic addition to the Santa Clara Superior Court bench."
"Mattia is smart, fair and someone with the highest integrity. Santa Clara County will be well served with his addition."
"I met Mattia Corsiglia over 20 years ago. He was dating one of my athletes at the time. They became engaged and married a few years later.
I watched his passion for the law grow at Santa Clara Law school and into his first job as an attorney in the private sector. His interest in serving the public good lead to his decision to join the District Attorneys office, where is currently serving as Deputy District for Santa Clara County.
From first hand experience, I can tell you that he mentors and guides aspiring and newly employed lawyers at the expense of his own time during a very busy schedule of his own.
With his integrity, experience and a strong work ethic, I can think of no finer replacement for the Honorable Christina Garcia-Sen for Office No 7, than Mattia Corsiglia."
"I’ve known Mattia for nearly 20 years and fully trust his judgment, integrity, and commitment to justice."
"Mattia Corsiglia inherits a legacy of high moral values and sense of fairness from his (grand)father."
"I have known Mattia’s family for years. He was raised with high standards for excellence, fairness and integrity. He will serve as a judge that our community will be very proud to have on the bench."
"Has the kind of experience, understanding, and character that this County deserves to have on the bench."
"Mattia is honorable, just, and fair… Santa Clara will be very fortunate and proud to have a Mattia Corsiglia serve as a Judge in our County and State."
"Mattia is a true public servant and a man of integrity, intelligence, empathy, and eminent good sense. We could not ask for a better addition to the county bench."
"I can’t stress enough how important it is to continue to have a fair and impartial judiciary. I am certain Mattia Corsiglia will continue the honorable tradition of upholding the law in a fair and impartial manner for all the citizens of our county."
"I am proud to endorse Mattia Corsiglia for Santa Clara County Superior Court Judge.
I have known Mattia for more than 25 years, and I have always been impressed by his ability to listen carefully and ask thoughtful, probing questions to uncover the underlying issues in any situation. That skill, paired with his integrity and sound judgment, is exactly what you want in a judge.
Mattia brings the right temperament to the bench—measured, attentive, and principled. Santa Clara County would be well served by his service as a Judge, and I wholeheartedly support his candidacy."
"I fully endorse Mattia Corsiglia for Judge in Santa Clara county. As a longtime friend, Mattia has always shown to be an honorable and trustworthy individual with impeccable work and moral ethics. There's no one better for this position!"
"I strongly support Mattia Corsiglia for Superior Court Judge in Santa Clara County. His integrity, legal acumen, and commitment to fairness make him exceptionally well-qualified for the bench."
"Mattia has an exceptional legal mind and an incredible heart. I have seen firsthand how much he cares about his community, and the diligence that he approaches every single endeavor with. In addition to his exceptional record as a prosecutor, Mattia has demonstrated a commitment to mentoring and teaching future generations of lawyers: both in his mentoring of your deputy district attorneys in the office; and in the many hours he spend instructing law school students as an adjunct professor. There is no doubt in my mind that he would be an exceptionally fair and talented judge."
"Mattia Corsiglia is principled, fair, even tempered, intelligent and judicious with a deep streak of kindness and decency. He will be a great judge."
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