Byron Tuyay

Byron provides comprehensive counsel to clients across the full spectrum of antitrust and consumer protection law. His practice includes representing clients in both civil and grand jury investigations initiated by federal agencies, where he navigates complex regulatory scrutiny with strategic precision. He also advises on cross-border compliance and enforcement strategies, helping multinational organizations align their operations with evolving global standards.

In addition, Byron is experienced in litigation involving data privacy and consumer protection, offering guidance on emerging legal risks in the digital economy. He regularly counsels clients in the technology and healthcare/life sciences sectors, delivering tailored antitrust advice that reflects the unique regulatory and competitive dynamics of these industries.

• Representing a leading technology company in U.S. courts in response to cross border discovery demands—including requests initiated by private litigants and by DOJ executing requests for foreign judicial assistance—crafting strategy from initial negotiations through motion practice to ensure compliance while protecting user privacy and platform integrity.
• Litigating to appeal disputes concerning overbroad and speech chilling subpoena seeking to disclose identities of anonymous online speakers, asserting robust First Amendment and privacy defenses and securing appropriately tailored orders.
• Representing individual in connection with domestic cartel investigation involving bid-rigging and price fixing of defense contracts.
• Advising public and private global companies on antitrust compliance and responses to domestic and cross-border antitrust investigations.

Prior to joining the firm, Byron handled the following matters:

• Acted as government trial counsel in a health care fraud and money laundering conspiracy matter in the United States District Court for the Central District of California.
• Acted as government trial counsel in a drug distribution and National Firearms Act matter stemming from investigation on tribal land in the United States District Court for the Central District of California.
• Acted as government counsel in appeal involving Fourth Amendment search and seizure issues in the United States Court of Appeals for the Ninth Circuit resulting in affirmance of trial court's order in government's favor.
• Represented Texas-based promotional products manufacturer and supplier in DOJ price fixing matter in the United States District Court for the Southern District of Texas.
• Defended executive in collegiate sports marketing industry in DOJ grand jury investigation into suspected antitrust violations.
• Defended financial industry executive in securities fraud matter in the United States District Court for the District of Massachusetts.
• Represented multinational hard disk drive manufacturer in connection with European competition authority cartel investigation and advised on antitrust compliance matters.
• Represented logistics industry executive in DOJ investigation involving bid rigging and price fixing allegations among fuel suppliers to US military bases in the Republic of Korea.

• American Bar Association – Section of Antitrust Law, Member
• California Lawyers Association, Antitrust and Consumer Protection Law Section – Executive Committee Member, Co-Chair of the Inclusion and Diversity Standing Committee
• National Asian Pacific American Bar Association – Member

As part of Byron's pro bono practice, he:

• Assisted in writ of habeas corpus appeal to the United States Court of Appeals for the Fifth Circuit on behalf of client serving life sentence without parole
• Represented petitioner to the Office of Pardon Attorney and Bureau of Prisons under the 2014 Clemency Project