Where is STG's headquarters located?

STG's headquarters is located in Menlo Park (United States).

How big is STG's investment team?

STG has a team of 62, including 10 partners.

How many companies has STG invested in?

STG has invested in 35 companies, including SurveyMonkey & Trellix.

Which companies has STG invested in lately?

OffenderWatch & TaxCalc are the latest investments by STG.

STG - 2026 Investor Profile, Portfolio, Team & Exits

Most viewed in 2019

STG is a private equity firm founded in 1990. It is primarily based in Menlo Park, United States. As of Jul 2026, STG is an active investor with a portfolio of 35 companies, comprising 35 funding rounds and 53 acquisitions. In the last 12 months, it has participated in 1 funding round and has made 1 acquisition. The firm primarily invests in companies based in United States and United Kingdom. Its portfolio is spread across a wide range of sectors from Enterprise Applications to Business Services. Most recently it acquired stakes in Carrier Logistics on Apr 13, 2026.

Overall STG portfolio has seen 1 IPO and 15 acquisitions, namely SurveyMonkey, Trellix and IMI. A lot of funds co-invest with STG, with names like Accel sharing a substantial percentage of its portfolio.

STG has a team of 62 people, including 10 partners.

Key Metrics

Founded Year

1990

Location

Menlo Park, United States

Portfolio Companies

SurveyMonkey, Trellix & 33 more

Portfolio Sectors

Enterprise Applications, Business Services

Portfolio Locations

United States, United Kingdom & 2 more

Acquisition Deals

Carrier Logistics, Movable Ink & 51 more

Investment Deals

SurveyMonkey, Trellix & 33 more

View STG's full profile

STG has a portfolio of 35 companies. They have invested in a total of 35 companies. Their most recent investment was in OffenderWatch (Unattributed round) on Oct 23, 2025. Here are the most recent investments by STG:

Date	Company	Round	Amount	Co-Investors
Oct 23, 2025	OffenderWatch	Unattributed	3839	-
Nov 14, 2024	TaxCalc	PE	6823	-
Mar 22, 2023	Accelerated Technology Laboratories	PE	7899	-
Mar 15, 2022	RSA Conference	PE	2504	Clearlake Capital Group ... and 1 others

View all investments by STG

STG has acquired 53 companies. Their most recent acquisition was of Carrier Logistics on Apr 13, 2026. Here are the most recent acquisitions by STG:

Acquisition Date	Company	Short Description	Total Funding	Founded Year
Apr 13, 2026	Carrier Logistics	Transportation management software solutions provider, optimizing operations, financials, and technology	-	1972
Jun 26, 2025	Movable Ink	Email marketing solutions for businesses	$97.3M	2010
Jun 25, 2025	Yodlee	Provider of cloud-based financial data aggregation and analytics	$84.3M	1999
Apr 11, 2024	Gresham	Provider of enterprise data management and automation solutions for finance	-	1969

Here is the portfolio snapshot of STG:

Investments by Year

The maximum number of investments were made in 2024

Acquisitions by Year

The maximum number of acquisitions were made in 2021

Portfolio by Location

Companies are primarily in United States and United Kingdom

Portfolio by Sector

Companies are primarily in Enterprise Applications

STG has a team of 62 members including 10 Partners and 23 Principals located in United States, India and 2 more locations. STG's team sits on the board of 1 company.

Here is a list of top team members in STG:

Name	Designation	Location	Board Memberships	Contact Details
John Tristan Treadwell	Partner	San Francisco	-	1 Email
Marshall Haines	Partner	San Francisco	-	1 Email
Marc Bala	Partner	San Francisco	-	1 Email
John Ouren	Partner	Menlo Park	-	-
Adam Hendricks	Partner	Menlo Park	-	1 Email
Kelly Carlson	Partner	San Francisco	-	1 Email
Doug Smith	Partner	Saratoga	-	-
Ishan Manaktala	Partner	-	-	1 Phone number
Seth Peck	Principal	Menlo Park	-	1 Email