Sonia Zeng

Sonia Zeng

Director
Chicago
LinkedIn

About

Sonia Zeng is a Director at Grant Thornton Stax with extensive experience advising private equity investors and their portfolio companies on buy-side diligence, exit planning, and growth-focused strategic engagements. Sonia’s experience spans multiple verticals, with a particular focus on industrials and vertical software (e.g., industrial automation, industrial tech / software, and equipment manufacturing).


Prior to joining Grant Thornton Stax, Sonia was a strategy consultant at Red Chalk Group and started her career in investment banking at Citigroup.


Sonia holds a B.A. in Quantitative Economics from Barnard College of Columbia University.

Extracurricular

Outside of work, Sonia enjoys volunteering at local pet shelters, where she helps animals find their ‘furever’ homes. She also loves discovering new parts of the world, immersing herself in different cultures, and exploring local food scenes.

Long Haul Waste Transportation & Logistics Market: Joint Report With Lincoln International
By Joel Slater, Sonia Zeng, & Garret Doyle January 1, 2025
Grant Thornton Stax, in collaboration with Lincoln International, have compiled this report of the Waste Transportation and Logistics industry. Click here to read the full report.
Advocating for Claimants: Role and Value of Public Adjusters
By David Lindsay & Sonia Zeng December 6, 2024
David Lindsay and Sonia Zheng discuss the role and value of Public Adjusters (PAs) including market trends, risks, and opportunities in this growing industry. Read more.
Sonia Zeng

Sonia Zeng

Director
Chicago
LinkedIn

About

Sonia is a Director at Grant Thornton Stax with extensive experience advising private equity investors and their portfolio companies on buy-side diligence, exit planning, and growth-focused strategic engagements. Sonia’s experience spans multiple verticals, with a particular focus on industrials and vertical software (e.g., industrial automation, industrial tech / software, equipment manufacturing).


Prior to joining Grant Thornton Stax, Sonia was a strategy consultant at Red Chalk Group and started her career in investment banking at Citi Group.


Sonia holds a B.A. in Quantitative Economics from Barnard College of Columbia University.

Extracurricular

Outside of work, Sonia enjoys volunteering at local pet shelters, where she helps animals find their ‘furever’ homes. She also loves discovering new parts of the world, immersing herself in different cultures, and exploring local food scenes.

Grant Thornton Stax Advises Peak Rock Capital and PortCo Tapco on its Acquisition of Logix ITS
August 26, 2025
Grant Thornton Stax supported Peak Rock Capital's PortCo, Traffic and Parking Control Co. (Tapco), on its recent acquisition of Logix ITS, a Canadian-based provider of connected traffic solutions. Read more.
Stax Advises Quorum Software on its Acquisition of zdSCADA
March 17, 2025
Stax recently supported Quorum Software on its acquisition of zdSCADA, a leader in cloud-based supervisory control and data acquisition (SCADA) technology. Read more here.
Peak Rock Capital Advised by Stax on Affiliate Acquisition of TAPCO
December 19, 2024
Stax assisted Peak Rock Capital on their affiliate acquisition of Traffic and Parking Control Co (TAPCO), a provider of intelligent transportation and traffic safety products. Read more.

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