Tracked deals
11
11 tracked deals across 2019-2026.
Private Equity Firm
Financial Services
Siris Capital Group
New York, New York, United States
Siris is a private equity firm focused on making control investments in data, telecommunications, technology, and technology-enabled business service companies. The firm partners with senior operating executives (Executive Partners) to identify, validate, and operate investment opportunities.
- Focus Areas
- Private equity (control buyouts), Data & telecommunications investments, Technology-enabled business services investments
- Website
- www.siris.com
Recent pace
2
2 tracked deals announced in the last 12 months.
Deal mix
Buyout
6 buyout · 2 addon · 2 growth capital
Siris Capital Group Acquisition Volume by Year
Last 7 years
Actual
Full-year estimate
Supporting Data
Recent Transactions
-
July 24, 2026
- Buyer
- Siris, Bullish
- Target
- EQ Retirement Solutions (EQRS), EQ Customer Resolutions (EQCR), Lenvi
- Seller
- Equiniti
- Industry
- IT Services
- Location
- United Kingdom
- Type
- Addon
Siris (via its affiliates) announced it has elected to exercise its option to maintain ownership of EQ Retirement Solutions (“EQRS”), EQ Customer Resolutions (“EQCR”) and Lenvi from Equiniti. The option follows Siris’s previously announced agreement to sell Equiniti to Bullish (NYSE: BLSH), with EQ’s sale expected to close in January 2027, and these businesses completing in parallel subject to regulatory approvals.
-
May 7, 2026
- Buyer
- Siris
- Target
- TAKKION
- Seller
- Apollo funds
- Industry
- Energy
- Location
- Wyoming, United States
- Type
- Buyout
Siris agreed to acquire a majority stake in renewable energy services provider TAKKION from Apollo funds. The transaction was subsequently completed, with Siris taking control of the business.
-
February 22, 2024
- Buyer
- Siris
- Target
- Gigamon
- Industry
- Cybersecurity
- Location
- California, United States
- Type
- Growth capital
Siris, a private equity firm, completed a significant strategic investment in Gigamon in December 2023, with Elliott Investment Management retaining its controlling interest. The capital will support Gigamon's product innovation and growth initiatives as the company expands its deep observability and cloud capabilities globally; financial terms were not disclosed.
-
November 27, 2023
- Buyer
- Siris, MCCP Investment Partners LP, Bow River Capital
- Target
- BearCom
- Seller
- Bertram Capital
- Industry
- Telecommunications
- Location
- Texas, United States
- Type
- Buyout
Siris, a New York-based private equity firm, has agreed to acquire BearCom, a North American provider and integrator of wireless voice, video and data solutions, from Bertram Capital. The transaction is supported by financing from MCCP (led the financing) and private-credit provider Bow River Capital; Siris plans to invest to expand BearCom's video security, private mobile networks and DAS capabilities to accelerate organic and inorganic growth.
-
June 29, 2022
- Buyer
- SMART Global Holdings, Inc., affiliates of Siris Capital Group, LLC
- Target
- Stratus Technologies
- Seller
- affiliates of Siris Capital Group, LLC
- Industry
- IT Services
- Location
- California, United States
- Type
- Buyout
SMART Global Holdings, Inc. (SGH) entered into a definitive agreement to acquire Stratus Technologies for $225 million in cash at closing, plus an earn-out of up to $50 million tied to Stratus gross profit performance over the first 12 fiscal months after closing. SGH expects the closing to occur in the second half of calendar year 2022 and plans to integrate Stratus into its Intelligent Platform Solutions (IPS) group.
-
April 7, 2022
- Buyer
- Constant Contact, Clearlake Capital Group, Siris Capital Group
- Target
- Vision6
- Industry
- Cloud & SaaS
- Location
- Queensland, Australia
- Type
- Addon
Constant Contact, a Clearlake- and Siris-backed digital marketing platform, has completed its acquisition of Australian email and SMS marketing provider Vision6 to expand its international footprint. The deal will allow Constant Contact to offer its email marketing, CRM, analytics and ecommerce integrations into the Australian market while preserving Vision6's local data sovereignty and support.
-
- Buyer
- Newfold Digital, Clearlake Capital Group, Siris Capital Group
- Target
- Deluxe's Australia web hosting business (Hostopia Australia)
- Seller
- Deluxe Corporation
- Industry
- Cloud & SaaS
- Location
- Australia
- Type
- Divestiture
Newfold Digital, a PE-backed web and commerce technology company, agreed to acquire Deluxe Corporation's Australia web hosting business (Hostopia Australia), a platform that serves more than 50,000 small business customers and hosts 250,000 websites. The deal, announced March 8, 2022, expands Newfold's presence in Australia and was described as part of Deluxe's portfolio-refinement strategy.
-
December 21, 2021
- Buyer
- SS&C Technologies Holdings, Inc., Siris Capital Group, LLC
- Target
- Equiniti, American Stock Transfer & Trust Company (AST)
- Industry
- Financial Services
- Location
- New York, United States
- Type
- Growth capital
SS&C Technologies has made a strategic minority investment in the newly formed company combining Equiniti and American Stock Transfer & Trust Company (AST), a business recently acquired by affiliates of Siris Capital Group. The investment joins SS&C with Siris and other investors to create a leading international provider of shareholder, transfer agent and regulatory technology and to explore commercial and product partnerships across the combined business.
-
June 22, 2021
- Buyer
- Constant Contact, Clearlake Capital Group, L.P., Siris Capital Group, LLC
- Target
- SharpSpring, Inc.
- Seller
- SharpSpring stockholders
- Industry
- Cloud & SaaS
- Location
- Florida, United States
- Type
- Buyout
Constant Contact, backed by Clearlake Capital and Siris Capital, agreed to acquire SharpSpring in an all-cash transaction valued at about $240 million (approximately $17.10 per share), with the deal announced June 22, 2021 and closed September 1, 2021. The acquisition integrates SharpSpring's marketing automation and lead management capabilities into Constant Contact's SMB-focused digital marketing platform to expand CRM and automation offerings and cross-sell across Constant Contact's customer base.
-
February 12, 2020
- Buyer
- Siris Capital Group, LLC
- Target
- TPx Communications
- Industry
- Telecommunications
- Location
- Texas, United States
- Type
- Buyout
Affiliates of Siris Capital Group completed the acquisition of TPx Communications in February 2020. The buyout positions TPx to accelerate growth across its UCaaS, managed IT, managed security and connectivity services with Siris providing capital and executive support.
-
May 30, 2019
- Buyer
- Siris Capital Group, LLC, Evergreen Coast Capital Corp.
- Target
- Travelport Worldwide Limited
- Seller
- Travelport shareholders
- Industry
- IT Services
- Location
- England, United Kingdom
- Type
- Buyout
Affiliates of private equity firms Siris Capital Group and Evergreen Coast Capital (an Elliott affiliate) completed an all-cash acquisition of Travelport Worldwide Limited for approximately $4.4 billion. Travelport will be privately held by the buyers, delist from the NYSE, and the deal is intended to support investment in the company’s travel commerce platform and continued product and capability development.
Related Acquisition Pages
Cloud & SaaS Buyers & Acquisitions
3 tracked deals by Siris Capital Group.
IT Services Buyers & Acquisitions
3 tracked deals by Siris Capital Group.
Telecommunications Buyers & Acquisitions
2 tracked deals by Siris Capital Group.
Cybersecurity Buyers & Acquisitions
1 tracked deal by Siris Capital Group.
Acquisitions in California
2 tracked deals by Siris Capital Group.
Acquisitions in Texas
2 tracked deals by Siris Capital Group.
Acquisitions in Florida
1 tracked deal by Siris Capital Group.
Acquisitions in New York
1 tracked deal by Siris Capital Group.
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