Symphony Technology Group

Who owns Symphony Technology Group?
STG Partners, LLC is privately owned by STG Management Holdings, L.P., which holds greater than 75% of the firm. The firm is not publicly traded and has no parent organization. William "Bill" Chisholm serves as Managing Partner. The firm itself has less than $1 billion in total assets while managing approximately $12 billion in client assets.

What companies does STG own?
STG's portfolio includes SurveyMonkey ($1.5 billion acquisition), Avid Technology ($1.4 billion acquisition), Wrike (work management), Trellix (cybersecurity, formed from McAfee Enterprise and FireEye), Skyhigh Security (security service edge), Onclusive (PR and media analytics), Gresham (data integrity), Dodge Data and Analytics (construction industry data), Carrier Logistics (logistics software), and OffenderWatch (public safety software), among others.

When was Symphony Technology Group founded?
Symphony Technology Group was founded in 2002 by Romesh Wadhwani, William Chisholm, and Bryan Taylor in Menlo Park, California. In 2017, the firm was reorganized as STG Partners, LLC.

What is STG's investment focus?
STG focuses on acquiring and building mid-market software, data, and analytics companies. The firm executes its strategy through corporate carve-outs, public-to-private transactions, and private company acquisitions. STG is known for its operational approach, providing hands-on management support to portfolio companies rather than focusing primarily on financial engineering.

Is Symphony Technology Group publicly traded?
No, STG Partners, LLC is a private equity firm and is not publicly traded. The firm raises capital through 7 private investment funds from institutional investors and high-net-worth individuals. As of March 2025, STG managed approximately $12 billion in assets under management.

What is STG's largest acquisition?
STG's largest acquisitions include McAfee Enterprise ($4 billion, March 2021), SurveyMonkey/Momentive Global ($1.5 billion, March 2023), FireEye software ($1.2 billion, June 2021), Avid Technology ($1.4 billion, November 2023), and RSA Security ($2.075 billion, February 2020).

How many employees does STG have?
STG employs approximately 88 people across its offices in Menlo Park, Bangalore, and London. The firm's workforce is distributed across 5 countries, including the United States, United Kingdom, India, Pakistan, and Morocco.

Symphony Technology Group was founded in 2002 by Romesh Wadhwani, William Chisholm, and Bryan Taylor in Menlo Park, California. Wadhwani had previously co-founded iGate Corporation (formerly Mastech), an IT staffing and services company. The firm was established with a differentiated approach to private equity, focusing on operational expertise rather than financial engineering.

Throughout the 2000s and 2010s, STG built a portfolio of software and technology companies. In September 2014, STG acquired McGraw-Hill Construction from McGraw-Hill Financial for $320 million, including Engineering News-Record, Architectural Record, Dodge, and Sweet's. The business was renamed Dodge Data and Analytics.

In February 2020, Dell Technologies sold its RSA Security business to a group led by STG in an all-cash transaction for $2.075 billion.

In March 2021, STG acquired McAfee Enterprise for $4 billion. In June 2021, FireEye announced the sale of its software technologies to STG for $1.2 billion, while retaining the services business under the Mandiant name. In January 2022, STG launched Trellix, an extended detection and response company combining FireEye and McAfee Enterprise. STG also spun out McAfee Enterprise's security service edge business as Skyhigh Security, headquartered in San Jose, California.

In January 2022, STG acquired media monitoring provider Kantar Reputation Intelligence, PR measurement workflow provider PRgloo, and US-based media analytics startup Onclusive, merging them under the Onclusive brand.

In March 2023, a private equity consortium led by STG acquired Momentive Global Inc. (formerly SurveyMonkey) in an all-cash deal valued at $1.5 billion, rebranding it back to SurveyMonkey.

In July 2023, STG acquired Wrike, a project management platform, from Citrix Systems for an undisclosed amount. Wrike had previously been acquired by Citrix in 2021 for approximately $2.25 billion.

In November 2023, STG acquired Avid Technology, a Burlington, Massachusetts-based company that makes Sibelius, Pro Tools, Media Composer, and other products for the audio, video, and media industries, in a $1.4 billion deal.

In July 2024, STG completed a 146.7 million GBP acquisition of Gresham Technologies PLC, a UK-based provider of data integrity and post-trade processing software. Gresham was subsequently delisted from the London Stock Exchange and merged with Alveo, an enterprise data management platform acquired by STG in 2023, with the combined entity continuing under the Gresham brand.

In October 2025, STG acquired S&P Global's EDM Business and thinkFolio Business units. On October 23, 2025, STG invested in OffenderWatch.

In April 2026, STG acquired Carrier Logistics Inc., accelerating the development of an AI-native, agentic platform for LTL and last-mile carriers.

Recent exits include CaseWorthy, sold to Rubicon Technology Partners on June 15, 2026, and Fishbowl, sold to GoTab on June 9, 2026.

STG operates in the private equity industry, which faces regulatory scrutiny regarding antitrust, transparency, and impact on portfolio companies.

STG's acquisition of McAfee Enterprise and subsequent restructuring into Trellix and Skyhigh Security attracted attention in the cybersecurity industry. Some observers questioned whether the breakup of McAfee Enterprise's assets would affect product quality and customer service. The cybersecurity industry is subject to significant regulatory scrutiny given its national security implications.

The acquisition of Avid Technology, which produces widely used media production tools including Pro Tools and Media Composer, drew attention from the creative professional community. Concerns were raised about potential cost-cutting and its impact on product development for tools that are industry standards in music production and film editing.

Private equity firms face increasing regulatory scrutiny regarding their impact on employment, debt levels in portfolio companies, and overall transparency. STG's use of debt to finance acquisitions, standard practice in private equity, can create financial pressure on portfolio companies.

The takeover of publicly traded companies like Momentive Global (SurveyMonkey) and Avid Technology involves shareholder approval processes and regulatory review, which can attract public scrutiny regarding whether the price adequately reflects the company's value.