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STG PARTNERS, LLC

STG PARTNERS, LLC is a Series C+ and buyout fund in the US, United Kingdom and global writing $30M–$100M checks into Enterprise, software, data-analytics and technology-services.

Stages
Series C+, buyout
Sectors
Enterprise, software, data-analytics, technology-services
Check size
$30M–$100M
Invests in
US-wide, United Kingdom, global
Round role
Leads rounds
Actively investing
Yes
Founded
2002
Assets under management
$12B
Website
stg.com

Thesis

STG Partners, LLC (STG), formerly Symphony Technology Group, is a private equity firm founded in 2002, headquartered in Menlo Park, California. The firm specializes in acquiring and scaling mid-market leaders in enterprise software, data, analytics, and software-enabled technology services. STG's investment strategy is value-oriented, focusing on control equity investments in businesses with recurring revenue, sticky customer relationships, and leverageable intellectual property. They target companies undergoing transformation, including corporate carve-outs and those requiring strategic repositioning. STG typically leads investment rounds with a sweet spot for check sizes around $100 million, with average investment ranges between $30 million to $50 million and above $50 million. Their geographic scope is global, with significant activity in the United States and the United Kingdom. As of March 2025, STG managed approximately $12 billion in AUM across 19 pooled investment vehicles. The firm also manages the STG Allegro fund for lower mid-market software companies. STG operates as an SEC-registered investment adviser.

Common questions

Does STG PARTNERS, LLC invest at the Series C+ stage?

Yes. STG PARTNERS, LLC lists Series C+ and buyout among the stages it invests in.

What check size does STG PARTNERS, LLC write?

STG PARTNERS, LLC writes $30M–$100M checks.

Where does STG PARTNERS, LLC invest?

STG PARTNERS, LLC invests in the US, United Kingdom and global.

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