Global Head of Privacy and Product Counsel NextRoll

Sarah leads cross-functional efforts with product, engineering, and data science teams to maintain a robust, company-wide privacy program while supporting the development of AI-powered ad tech products. As targeted advertising faces increasing privacy scrutiny, Sarah’s team has helped operationalize compliance with evolving global privacy laws. Before joining NextRoll, Sarah was outside counsel at Greenberg Traurig and Weil, Gotshal & Manges, focusing on intellectual property and e-commerce litigation.

Founder & CEO ThinkMedium

Dennis has worked in digital advertising for 20+ years. He is a product-oriented leader who has led organizations to develop demand-side platforms, ad exchanges, targeting systems, identity solutions, measurement platforms, and more. In 2023, he founded advisory firm ThinkMedium to help ads and media clients navigate shifts in privacy and data strategy, safety, and efficiency. He was previously a VP at Meta, in a role that built on his tenure as CEO of advertising technical standards body IAB Tech Lab and his prior ad tech product/business leadership experience at Yahoo and Microsoft.

Partner Hintze Law

Sam is based in Seattle where he is a partner with Hintze Law, an AI, privacy, and security law firm. Sam regularly helps clients to establish, scale, and right-size privacy programs. Sam is approaching two decades of experience as a privacy leader and lawyer. He previously worked as chief privacy officer for global fintech Blackhawk Network, and as head of privacy for Nordstrom.  

Outside Counsel Privacy Adviser
Eyeota

Alan Chapell has worked with dozens of premium adtech and martech companies as an outside counsel and privacy advisor. Alan began his career at a boutique direct marketing agency in Connecticut. In 1996, he founded the privacy program at Jupiter Research, an Internet research firm. After, Alan helped develop DoubleClick’s research product suite and founded Chapell & Associates in October of 2003.

Partner
ZwillGen, PLLC

Ken Dreifach sits on the NAI board on behalf of AdRoll, the retargeting and prospecting platform. Since 2000, Ken has served in a variety of high-profile roles in the digital advertising landscape: as a regulator, General Counsel and Chief Privacy Officer, and currently as outside counsel to numerous NAI members and other web-based, mobile, and data services companies.

Vice President & General Counsel
The NAI

Tony is an experienced privacy lawyer specializing in digital advertising and media issues. Most recently, he served as Assistant General Counsel at the Interactive Advertising Bureau (IAB), where he played a pivotal role in coordinating with stakeholders across the digital advertising industry to develop state law compliance frameworks and strategies.

Co-Founder & CEO TwinLogic Strategies

Elizabeth, named a “Top Lobbyist” by The Hill, has a 30-year career in Washington. She held senior roles on Capitol Hill for over a decade, led government relations for top tech and entertainment companies, and has consulted for companies, trade associations, and non-profits. An expert in issue campaigns and industry coalitions, she delivers results by combining deep policy knowledge with a strong network. Elizabeth previously led legislative work for Rep. Bob Goodlatte, served as press secretary for the House Energy and Commerce Committee, and managed public policy at Disney and AOL, where she helped navigate the AOL-Time Warner merger.

President & CEO
The NAI

As President & CEO of the NAI, Leigh Freund leads the organization’s growth and helps set their agenda and strategic priorities. Leigh joined the NAI in 2015 after an 11-year career at AOL Inc., where she served as Vice President & Chief Counsel for Global Public Policy. Leigh is a passionate believer in firm self-regulation.

Chief Privacy Officer Magnite

Rachel’s focus is on appropriate data collection and use in advertising technologies, data management and optimization, compliance with privacy laws and regulations, and data privacy education. She is responsible for Magnite’s overall compliance with various data privacy laws and regulations including the GDPR and emerging US laws. She has 15 years’ experience in digital marketing where she began her career by overseeing paid search and social media campaigns across a variety of clients and verticals. She has worked with the Office of the NY AG – Internet Bureau, Wunderman Thompson, Nielsen, and with the ESRB Privacy Certified.

Partner Frankfurt Kurnit Klein & Selz PC

Daniel is Chair of the Data Strategy, Privacy & Security Group. The California Lawyers Association named him the 2025 “California Privacy Lawyer of the Year,” an annual award recognizing one lawyer’s outstanding contributions to California privacy law—making him only the third recipient and first private practitioner to receive it.

Deputy Assistant Attorney General Department of Justice

Mark Hamer serves as Deputy Assistant Attorney General with a focus on civil litigation and enforcement. He has over 30 years of litigation experience in both public service and private practice.  Before returning to the Division, Mr. Hamer was a partner at a global law firm where he served as Global Chair of its Antitrust & Competition Practice Group, leading a team of over 250 competition lawyers in 43 countries. In private practice, he focused on antitrust litigation and antitrust conduct investigations around the world. Mr. Hamer previously served as a trial attorney in the Antitrust Division for 7 years handling both merger and non-merger litigation.

Senior Director, Government Affairs & Public Policy, Ads Google

Ghita leads a team of public policy experts dedicated to supporting Google’s Ads and Commerce businesses. She has over 20 years of legal and policy experience with particular expertise in digital advertising, privacy and technology. Prior to joining Google, Ghita was the Chief Privacy Officer and VP of Legal at Quantcast. She has also worked at Yahoo, in private practice, and in U.S. Federal District Court. Ghita has a JD, Magna Cum Laude, from Georgetown University Law Center and a B.A. in Mass Communications, Summa Cum Laude, from James Madison University.

Faculty Director & Professor of Law in Residence Berkeley Center for Law & Technology

Chris Jay Hoofnagle teaches torts, cybersecurity, consumer protection, python programming, and seminars on new technologies at the University of California, Berkeley School of Law. Hoofnagle is of counsel to Gunderson Dettmer Stough Villeneuve Franklin & Hachigian, LLP, and an elected member of the American Law Institute. In Spring 2024, Hoofnagle was Visiting Senior Research Fellow in the Department of War Studies, King’s College London.

Founder & CEO Aqfer

Dan has provided strategic, tactical and technology advisory services to a wide range of marketing technology and big data companies. Clients have included Altiscale, ShareThis, and Akamai among many others. As a serial entrepreneur, Dan has led many companies in CEO and CTO roles including TACODA who was purchased by AOL in 2007 along with Permissus, CMGI and Engage. Dan graduated magna cum laude with a BA in Astronomy and Astrophysics and Physics from Harvard University.

Partner Davis+Gilbert

Gary provides direction to clients engaging in new technologies. His deep knowledge of privacy and data security issues makes him a sought-after counselor to companies in the technology, e-commerce, financial services and employment sectors as well.

Much of Gary’s time is spent staying current in this fast-paced environment. Whether through his representation of key industry clients, his active involvement in trade associations or his recognized thought leadership, he is deeply immersed in the issues facing tech-forward companies. He co-leads a team focused on the CCPA, GDPR, and other enacted and pending state and federal legislation, as well as self-regulatory regimes.

CSO and Co-Founder Symitri

David is a seasoned entrepreneur with over 30 years of experience in senior strategy, operations and technology roles, David is an outspoken advocate for higher standards in digital advertising and a well-respected voice on consumer privacy and data protection.

Vice President, Public Policy
The NAI

David works closely with member companies and represents the industry to promote a strong and responsible adtech industry. David is a veteran of IT and public affairs, with extensive experience representing technology companies before the United States Congress, federal regulatory agencies, and state legislatures.

Chief Privacy & Security Partner; Chair, Privacy, Security & Data Innovations Loeb&Loeb LLP

Jessica helps companies in the U.S. and around the world launch, market and monetize their digital products and content. She has assisted dozens of organizations design their privacy programs and operationalize U.S. and international privacy and data security requirements. Jessica has deep experience advising companies in the adtech, e-commerce, and entertainment space, as well as clients in more heavily regulated sectors, such as healthcare and financial services. Named one of Crain’s Notable Women in Law for 2019, Jessica is routinely called upon to speak on privacy and cybersecurity.

Senior Manager, Government Affairs and Public Policy, Ads Google

Associate Mariner Strategies

Willy is an Associate at Mariner Strategies, the nation’s leading state tech policy firm, where he leads legislative advocacy on privacy, AI, and consumer protection. He drafts legislation, provides testimony, and advises on regulatory strategy across the U.S. A Fellow of Information Privacy (FIP), he brings global compliance experience to shape laws that balance innovation, accountability, and consumer trust.

Partner Willkie Farr & Gallagher

Susan Rohol is a partner in Willkie’s Privacy, Cybersecurity & Data Strategy and AI & Emerging Technologies practice groups. She is based in Willkie’s Los Angeles and New York offices. Susan’s practice is focused on advising clients on legal issues and regulations spanning technology, privacy, cybersecurity, artificial intelligence, intellectual property, regulatory investigations and global government affairs.  She is formerly the Chief Privacy Officer of Warner Bros Discovery and has previously worked at Nike and on the Senate Judiciary Committee.

Chief Privacy Officer OpenX

Julie is the Chief Privacy Officer and Deputy General Counsel at OpenX, leading the company’s efforts to navigate global privacy regulations and maintain industry leadership in data privacy and compliance. With extensive expertise in complex regulatory frameworks, she ensures OpenX continues to drive privacy-first solutions that enable smarter, more effective advertiser, publisher, and ultimately consumer connections.

Partner, Privacy & Cybersecurity Wilson Sonsini Goodrich & Rosati

Tracy is a partner in Wilson Sonsini’s San Francisco office, where she advises on data privacy issues and defends companies in government investigations. Tracy previously worked as attorney at the FTC in Washington DC, where she brought enforcement actions related to online advertising and consumer privacy; helped create principles for industry self-regulation; and led the FTC’s first enforcement action involving targeted advertising. After her government service, Tracy worked as in-house advertising and privacy counsel for a large technology company.

CEO SuperSet

Zane is a technologist and serial entrepreneur with 10 years of experience building tools for data sovereignty. After selling his previous data startup, he founded Superset, privacy compliance management software provider specializing in the compliance pains of data brokers.