IAS Advisory is pleased to announce the appointment of Ms Patnatwipha Sasithiroj (formerly Siripen Kulworakulpitak) as Managing Director, effective 1st September 2026.
Co-founding partner Patnatwipha spearheads IAS Advisory’s corporate & commercial/M&A division and brings extensive experience in foreign direct investment (FDI), real estate, employment management, and business restructuring & reorganisation.
In her new role, she will oversee the firm’s strategic direction, operational management, and continued growth.
The firm also notes that Patnatwipha has formally changed her name from Siripen Kulworakulpitak to Patnatwipha Sasithiroj.
We are delighted to have Patnatwipha assume this leadership position. Her deep expertise, client focus, and commitment to excellence make her ideally suited to take the firm forward.
Throughout her career, she has advised on a wide range of complex transactions—including private equity acquisitions, joint ventures, and public takeovers—with a total value exceeding hundreds of billions of Thai Baht.
She has consistently demonstrated exceptional leadership, commercial judgement, and dedication to her clients and colleagues, navigating intricate legal and financial challenges and playing a key role in strategic decision-making across her 20+ years in private practice. Her promotion to MD reflects both her outstanding track record and the confidence we have in her ability to guide IAS Advisory through its next phase of development.
We are proud to make this announcement under her new name and look forward to the contribution she will make in this expanded role.
Warmest congratulations, Patnatwipha!
Patnatwipha can be reached at [email protected] or on (+66) 02-081-0652.