Siris Capital

https://siris.com/

Last activity: 08.10.2026

Active

Siris is a private equity firm that targets control-oriented investments in technology and technology-enabled services companies that are well-positioned to meet the dynamic needs of their customers.

Portfolio

Mentions

Overview

Investment Type

Private Equity Firm

Investment Stage

Private Equity

Portfolio 1

Date	Name	Website	Total Raised	Location
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Mentions in press and media 19

Date	Title	Description
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Oct 2, 2026	IBM Elects Frank Baker to its Board of Directors	ARMONK, N.Y., Oct. 2, 2026 /PRNewswire/ -- The IBM (NYSE: IBM) board of directors has elected Frank Baker to the board, effective October 1, 2026. Frank Baker, 53, is a Co-founder and the Managing Partner of Siris Capital Group, LLC ("...
Dec 10, 2025	Newfold Digital Secures $100 Million Investment to Accelerate Growth	Newfold Digital a web and commerce technology company serving nearly 7 million customers globally, backed by Clearlake Capital Group, L.P. (together with affiliates, “Clearlake”) and Siris Capital Group (together with affiliates, “Siris”), ...
May 2, 2023	Mavenir raises $100M to build more AI into its cloud-based automated network technology for telecoms services	One of the bigger trends in telecoms has been the evolution of cloud computing and how software operating in the cloud is being used by carriers to build out and manage their networks — moves disrupting traditional business models based aro...
Apr 3, 2023	UK-based travel retail platform Travelport secures €184.5M to pursue growth strategies	London-based Travelport, a company that provides travel bookings for travel suppliers worldwide, announced on Friday, March 31, that it has secured $200M (approximately €184.54M) in funding. The investment came from the company’s owners Sir...
Nov 1, 2022	Clarivate Successfully Completes Divestiture of MarkMonitor to Newfold Digital	LONDON, Nov. 1, 2022 /PRNewswire/ -- Clarivate Plc (NYSE:CLVT), a global leader in providing trusted information and insights to accelerate the pace of innovation today announced that it has successfully completed the divestiture of MarkMon...
Apr 8, 2022	Constant Contact Closes Acquisition of Vision6	Acquisition will expand Constant Contact's international footprint WALTHAM, Mass. and BRISBANE, Australia, April 8, 2022 /PRNewswire/ -- Constant Contact, a digital marketing platform used by millions of small businesses, backed by Clearlak...
Dec 14, 2021	Equiniti : Affiliates Of Siris Capital Group Complete The Acquisition And Combination Of Equiniti And AST	Siris brings strong financial resources and extensive strategic and operational expertise in financial technology to Equiniti and AST The combination is expected to create a leading international provider of mission-critical shareholder and...
Nov 5, 2021	SaaS Leader Bret Griess Joins Siris as Executive Partner	Siris, a leading private equity firm focused on investing and driving value creation in technology and telecommunications companies, announced that Bret Griess has joined the firm as an Executive Partner. In close partnership with Siris and...
Mar 30, 2021	Atlanta’s early-stage investment renaissance continues with Overline’s $27 million fund close	Michael Cohn became a celebrity in the Atlanta startup ecosystem when the company he co-founded was sold to Accenture in a deal valued somewhere between $350 million and $400 million nearly six years ago. That same year, Sean O’Brien also m...
Aug 24, 2020	ARQ GROUP LIMITED Arq : Scheme Booklet - Replacement Copy	24 August 2020 WEBCENTRAL GROUP LIMITED (ASX: WCG) SCHEME BOOKLET - REPLACEMENT COPY The scheme booklet published by Webcentral Group Limited (Webcentral) on the ASX on 21 August 2020 in relation to the proposed acquisition of Webcentral by...
May 22, 2019	Tracy Harris Joins Siris as Partner	Siris, a leading private equity firm focused on investing and driving value creation in technology and telecommunications companies, today announced that Tracy Harris will be joining Siris as Partner – Investor Relations and Product Strateg...
Apr 4, 2019	Siris Capital Group Receives Strategic Minority Investments	Siris Capital Group, LLC, a NYC-based private equity firm, received strategic minority investments from Wafra Inc. and Landmark Partners. The sums of the deals, which follow the recent closing of Siris’ latest buyout fund at $3.45 billion, ...
Mar 4, 2019	Term Sheet — Monday, March 4	RIDING INTO THE PUBLIC MARKETS Good morning, Term Sheet readers. Paid Content A.I. is the answer to protecting your enterprise in the cloud From ExtraHop The filing raised questions around the financial health of the company and whether it ...
Mar 3, 2019	Siris Capital Closes $3.45 Billion Technology Buyout Fund	Siris Capital Group, LLC, a leading private equity firm focused on making investments in technology companies, today announced the closing of Siris Partners IV, L.P. with $3.45 billion of capital commitments. Through Fund IV, Siris intends ...
Sep 6, 2018	Term Sheet — Thursday, September 6	THE ‘NEW’ FOX Good morning, Term Sheet readers. Paid Content You can't secure what you can't see From ExtraHop Fox has invested a combined $100 million into Caffeine, a social broadcasting platform for gaming and entertainment that’s still ...
Dec 21, 2017	Tech-focused Siris Capital launches fourth vehicle, eyes up to $3bn	Tech-focused buyout house Siris Capital has launched a new fund targeting up to $3bn. The firm has not raised any capita
Dec 20, 2017	Siris Capital Targets $3B for Fourth Fund	Siris Capital Group, a tech-focused private equity firm, is seeking to raise $3 billion for its fourth fund, according to an SEC filing. In February 2015, Siris closed its previous fund at $1.81 billion, beating its $1 billion target.
Feb 13, 2015	Siris smashes $1bn target, closes tech-focused Fund III on $1.8bn	Technology investor Siris Capital Group has easily beaten the $1bn target for its third fund and pulled in $1.8bn afte

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FAQ about Siris Capital

How many startups has Siris Capital invested in?

Siris Capital has 1 portfolio company on Parsers VC.

What has the press written about Siris Capital?

Parsers VC has collected 19 articles mentioning Siris Capital, among them “IBM Elects Frank Baker to its Board of Directors” (Oct 2, 2026) and “Newfold Digital Secures $100 Million Investment to Accelerate Growth” (Dec 10, 2025).

Is Siris Capital still active?

Yes, Siris Capital is active; its latest activity on Parsers VC dates from Oct 8, 2026.