Symphony Technology Group
| STG Partners | |
| Company type | Private |
| Industry | Private equity |
| Predecessor | Symphony Technology Group (2002-2017) |
| Founded | 2017 |
| Founder | William "Bill" Chisholm |
| Headquarters | 1300 El Camino Real, Suite 300, Menlo Park, California, U.S. |
Number of locations | 3 (Bangalore, India; London, England; Menlo Park, CA) |
Key people | Managing partner: William "Bill" Chisholm Managing director and CFO: Stephen Henkenmeier Managing directors: Marc A. Bala, Douglas M. Haines, and Johnie T. Treadwell |
| AUM | $12 billion (2025) $11.7 billion (2024) |
| Total assets | Less than $1 billion (2025) |
| Owner | STG Management Holdings, L.P., "Greater than 75%" |
Number of employees | 88 (2025) |
| Website | stg |
STG Partners, LLC (STG) is an American private equity firm and based in Menlo Park, California. Its predecessor, Symphony Technology Group ("Symphony") was founded in 2002 by Romesh Wadhwani, who recruited William Chisholm and Bryan Taylor to join him in the founding of Symphony. In 2017, Symphony was reorganized as STG Partners. As of March 2025, STG Partners managed approximately $12 billion in 19 pooled investment vehicle for its clients. The firm itself has less than one billion dollars in assets.