Siris Capital Group
Siris Capital Group is a private equity firm founded in 2011 and headquartered in West Palm Beach, Florida, that makes control-oriented investments in technology and technology-enabled services companies in the mid-market, with over $6.2 billion in cumulative committed capital raised.
- Company typePrivate
- Founded2011
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Siris Capital Group does
Siris Capital Group is a private equity firm founded in 2011 and headquartered in West Palm Beach, Florida. The firm targets control-oriented investments in technology and technology-enabled services companies, with a stated focus on mid-market opportunities characterized by $10 million to $50 million of EBITDA and transaction values of $100 million to $500 million. Siris has raised over $6.2 billion of cumulative committed capital across its funds and operates with a small team (11-50 employees) led by co-founders including Peter Berger (Chairman since November 2025), Jeffrey Hendren, and Frank Baker.
The firm's portfolio spans telecommunications infrastructure (Mavenir, Tekelec, Airvana), enterprise communications and collaboration (Polycom, TPx, Intralinks, Constant Contact, PGi), security and networking (Websense, Pulse Secure, Gigamon, Stratus), commerce and digital services (Digital River, Travelport, Web.com), healthcare technology (Mmodal), and mission-critical wireless (BearCom). In 2026 Siris completed the acquisition of a majority stake in TAKKION, a renewable energy services provider, from funds managed by Apollo Global Management — its first investment from a new fund focused on tech-enabled services in critical infrastructure.
Siris generates returns through investment management rather than product or service sales. The firm monetizes via management fees on committed capital, transaction and monitoring fees on portfolio companies, and realized carried interest on exits — exemplified by the May 2026 sale of Equiniti to Bullish for $4.2 billion. Its go-to-market is deal-sourcing driven within a defined technology mid-market lane, with operational intensity and deep technology expertise cited as core differentiators. The firm is privately held (LLC structure, US-domiciled) with no public ticker and no identified parent entity.
Siris Capital Group firmographics
Firmographics- Name
- Siris Capital Group
- Legal name
- Siris Capital Group, LLC
- Website
- https://siriscapital.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Siris Capital Group is a private equity firm founded in 2011 and headquartered in West Palm Beach, Florida, that makes control-oriented investments in technology and technology-enabled services companies in the mid-market, with over $6.2 billion in cumulative committed capital raised.
- Ownership category
- akta.pro rank
Siris Capital Group industry classification
Industry- Product category
- Private Equity Investment Management
- NAICS
- Portfolio Management and Investment Advice (523940), Portfolio Management and Investment Advice (52394), Other Investment Pools and Funds (5259), Other Financial Vehicles (525990), Miscellaneous Financial Investment Activities (523999)
- SIC
- Investment Advice (6282), Finance Services (6199), Security Brokers, Dealers & Flotation Companies (6211)
- akta.pro primary industry
- Private Equity Buyout Fund-of-Funds (FSANAGAD)
- akta.pro secondary industries
- Venture Capital Fund-of-Funds / Multi-Manager Platforms (FSANAAAJ), Venture Capital Secondaries (LP Interests & Direct Secondaries) (FSANAFAJ)
Keywords
Where Siris Capital Group is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Siris Capital Group business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others, Infrastructure
Siris Capital Group product offering
Product offeringCore offering
Siris Capital Group is a private equity firm that makes control-oriented investments in technology and technology-enabled services companies. The firm invests its funds into mid-market businesses with $10-50 million EBITDA at transaction values of $100-500 million, providing capital, strategic guidance, and operational support to grow and optimize portfolio companies across network communications, cybersecurity, enterprise software, digital infrastructure, and renewable energy services.
Product overview
Siris Capital Group is a private equity firm, not a technology product company. It does not offer products or services in the traditional sense. The company focuses on control-oriented investments in technology and technology-enabled services companies. Its portfolio includes various companies across the technology sector such as Mavenir (telecom software), BearCom (wireless communications and security), Equiniti (transfer agent and shareholder services), and TAKKION (renewable energy services), among others. Siris itself provides investment management and capital deployment services rather than technology products.
Differentiator
Problem solved
Functional benefit
Products and services
- Control-Oriented Private Equity Investments Siris Capital Group's core offering is control-oriented private equity investment, deploying committed capital from its funds to acquire controlling stakes in mid-market technology and technology-enabled services companies with $10-50 million of EBITDA at $100-500 million transaction values. The firm provides capital, strategic guidance, and operational support to grow portfolio companies, and is intended for founders, owners, and corporate parents seeking an acquirer for full or majority stakes.
Companies that use Siris Capital Group
Customer profileSegments1 record
Ideal customer profiles2 records
Siris Capital Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Siris Capital Group partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights5 records
Siris Capital Group competitors and assessment
Company assessmentDirect peers
- Thoma Bravo: Largest dedicated technology-focused private equity firm; pursues control buyouts of mid- and large-cap software and tech-enabled services companies — directly comparable to Siris's control-oriented tech thesis and target EBITDA range.
- Vista Equity Partners: Tech-focused PE firm that takes control stakes in enterprise software companies and applies operational best practices; closely mirrors Siris's 'operational intensity' mid-market tech buyout approach.
- Francisco Partners: Private equity firm focused exclusively on technology and technology-enabled services businesses; competes for similar mid-market control deals as Siris across telecom, security, and IT services.
- Silver Lake: Technology-focused private equity firm investing in large-cap technology and tech-enabled leaders; comparable to Siris on technology thesis and control orientation, though typically at larger scale.
- Insight Partners: Tech-focused investment firm spanning growth equity and control buyouts; competes for similar software and tech-enabled assets and shares Siris's deep operating-engagement model.
- Audax Group: Mid-market private equity firm with a focus on control buyouts in technology, business services, and healthcare; directly comparable to Siris on mid-market deal sizing and control-oriented approach.
Broad incumbents
- Apollo Global Management: Large diversified alternative asset manager with significant private equity and credit franchises; a counterparty in the TAKKION transaction and a peer for tech-enabled infrastructure investing at scale.
- KKR: Global investment firm with a large private equity platform spanning technology, industrials, and services; competes with Siris for larger tech-enabled buyouts and provides capital-markets scale Siris lacks.
- Blackstone: World's largest alternative asset manager with growing private equity and tactical-opportunities franchises in technology and infrastructure; a broad incumbent that overlaps with Siris's expansion into critical infrastructure.
- Carlyle Group: Global investment firm with diversified private equity funds active in technology, telecom, and business services; overlaps with Siris on telecom software and tech-enabled services investing at generally larger scale.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Siris Capital Group social profiles
Digital presenceSiris Capital Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Siris Capital Group leadership team
Management profileNumber of profiles
Profiles4 records
Siris Capital Group subsidiaries and ownership
Company hierarchySubsidiaries17 records
Siris Capital Group funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Siris Capital Group M&A and investment
M&A and investmentM&A17 records
Investments8 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Siris Capital Group
What does Siris Capital Group do?
Siris Capital Group is a private equity firm that makes control-oriented investments in technology and technology-enabled services companies. The firm invests its funds into mid-market businesses with $10-50 million EBITDA at transaction values of $100-500 million, providing capital, strategic guidance, and operational support to grow and optimize portfolio companies across network communications, cybersecurity, enterprise software, digital infrastructure, and renewable energy services.
Is Siris Capital Group a public or private company?
Siris Capital Group is a private company. It is classified as management employee owned and is currently operating.
When was Siris Capital Group founded?
Siris Capital Group was founded in 2011. It employs 11 to 50 people.
Where is Siris Capital Group based?
Siris Capital Group is headquartered in New York, United States, in the North America region.
Who are Siris Capital Group's main competitors?
Direct peers on record are Thoma Bravo, Vista Equity Partners, Francisco Partners, Silver Lake, Insight Partners and Audax Group. Broad incumbents are Apollo Global Management, KKR, Blackstone and Carlyle Group.
Does Siris Capital Group have an API?
No public API is recorded for Siris Capital Group.
What industry is Siris Capital Group in?
Siris Capital Group's product category is Private Equity Investment Management. Its primary akta.pro industry code is FSANAGAD, Private Equity Buyout Fund-of-Funds, with a secondary code of FSANAAAJ, Venture Capital Fund-of-Funds / Multi-Manager Platforms. Its NAICS code is 523940 and its SIC code is 6282.