Compass Lexecon Appoints Adel Turki as President and Niall MacMenamin as Deputy President of North American Practice

Compass Lexecon is pleased to announce the appointments of Dr. Adel Turki as President and Niall MacMenamin as Deputy President of the firm’s North American practice. Professor Daniel Fischel will remain as Chairman and continue his focus on client work, business generation, and mentorship.

Commenting on the leadership appointments, Professor Fischel said, “Adel and Niall bring deep industry expertise and a shared commitment to the high standards of Compass Lexecon. I am confident that they will expand on what we have achieved thus far and pursue opportunities that will ensure we stay at the forefront of our industry for many years to come.”

Dr. Turki has over three decades of experience in economic consulting and joined Compass Lexecon in 2017 as a Senior Managing Director. He has been retained to analyze issues of class certification, merits, and damages in hundreds of securities fraud suits, and has led teams on some of the most complex securities cases in the United States. His expertise spans ERISA litigation, merger and takeover disputes, regulatory investigations, and complex financial instruments including derivatives, structured finance, and mortgage-backed securities. Dr. Turki has been retained by the SEC and by defendants in actions investigated by the SEC, the Consumer Financial Protection Bureau, the DOJ, and the Ontario Securities Commission.

“I am honored to step into this new role as President of Compass Lexecon,” said Dr. Turki. “I look forward to working with Dan, Niall, and my colleagues across the firm to build on the firm’s strong foundation, continue delivering excellent service to our clients, and create new opportunities for our people.”

Niall has over 20 years of experience in economic consulting. He joined Compass Lexecon in 2021 and has served as a Senior Managing Director with the firm since 2025. Niall has testified in and has supported clients and counsel in complex litigation including antitrust, merger reviews, consumer protection, class certification, intellectual property, and damages assessment. Many of Niall’s matters involve technology companies and two-sided market analysis, including FTC v. Meta, US v. Google/Alphabet, In re: Keurig Green Mountain Antitrust Litigation (direct purchaser and competitor claims), and Advanced Micro Devices v. Intel.

“It is a privilege to take on this role and partner with Adel and Dan to support the firm’s next phase of growth,” said Niall. “Compass Lexecon has set the standard for economic consulting, and we are committed to providing the highest quality service to our clients and ensuring the firm remains a place where the best economists want to build their careers.”