Fundraising FoxSiris
Private equityWest Palm Beach · Growth–Late Stage · 18 people tracked
Also known as Siris Capital Group, Llc
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Investment thesis
Siris is a middle-market private equity firm focused on control-oriented investments in technology and technology-enabled services companies positioned to serve evolving customer needs. It emphasizes operational intensity and deep technology expertise, combining investment acumen with hands-on operating capabilities. The firm targets companies with $10 million to $50 million of EBITDA and transaction values between $100 million and $500 million. Having raised over $6.2 billion of cumulative committed capital, Siris seeks businesses across the broad tech and tech-enabled services landscape.
Source: firm website, verified Oct 13, 2026.
Team · 18 people
from the firm's website & public directories
Co-founder and Managing Partner of Siris, which he launched in 2011 with Peter Berger and Jeffrey Hendren, helping shape the firm's investment strategy and overseeing platform equity and non-control investments. He was previously a Managing Director at Ripplewood Holdings and began his career in Goldman Sachs' M&A group.
Co-founder and Managing Partner of Siris, launched in 2011 with Frank Baker and Peter Berger, helping establish the firm's strategy and overseeing platform equity and non-control investments. He was previously a Managing Director at Ripplewood Holdings and worked in Goldman Sachs' M&A group.
Chairman and co-founder of Siris with over 50 years of experience in private equity, banking, and consulting. He provides strategic oversight and governance, previously serving as a founding Managing Director at Ripplewood Holdings and in leadership roles at Arthur Andersen and Bear Stearns.
Partner who joined Siris in 2012 and serves on the Investment and Operating Committees, currently overseeing investments in Gigamon and Newfold Digital. He previously worked in M&A and Global Communications at Citigroup.
Managing Director who joined Siris in 2023 and serves on the Investment and Operating Committees, overseeing investments in BearCom and EFI. He was previously a Principal at Tailwind Capital and worked in healthcare investment banking at Morgan Stanley.
Principal who joined Siris in 2018, previously an investment banking analyst in the M&A Group at Credit Suisse in New York.
Principal who rejoined Siris in 2019 as a Senior Associate. He was previously Senior Director of Corporate Development and Finance at Pulse Secure (a Siris portfolio company) and a research analyst at Point72 Asset Management.
Vice President who joined Siris in 2021, previously an investment banking analyst in the TMT Group at Guggenheim Securities in New York.
Vice President who joined Siris in 2022, previously an investment banking analyst in the TMT group at Rothschild & Co in New York.
Managing Director for business development who joined Siris in 2026, overseeing the firm's business development activities. He was previously a Managing Director at Piper Sandler and a Partner at Frontier Growth.
Vice President who joined Siris in 2026, previously a Vice President at Audax Private Equity in Boston and an investment banking analyst at Morgan Stanley.
Senior Associate who joined Siris in 2026, previously an investment professional at Tyree & D'Angelo Partners in Chicago. He holds an MBA from UCLA and is a Chartered Financial Analyst.
Associate who joined Siris in 2024, having previously worked as an investment banking analyst in the Technology Group at Barclays in San Francisco.
Associate who joined Siris in 2025, having previously been an investment banking analyst in the Media & Telecom Group at Rothschild & Co. in New York.
Associate who joined Siris in 2026, previously an investment banking analyst in the M&A Group at GLC Advisors in Denver.
Associate who joined Siris in 2025, previously an investment banking analyst in the Technology Groups at Barclays and UBS in San Francisco.
What they invest in
from 12 of 25 portfolio companiesEnterprise Software ×9Cloud Computing ×5AI & Machine Learning ×4Hardware ×4Advanced Manufacturing ×3Cybersecurity ×3Data & Infrastructure ×3IoT ×3
HQs:United States×5United Kingdom×1
Investments · 25 tracked
founders shown can be your intro path
Randy Parker(Founder)in
Co-investorsBantam GroupCapitalGCincyTechTexas Next CapitalVerizon Ventures
Provider of e-commerce, payments, and logistics SaaS solutions for direct-to-consumer businesses.
Co-investorsAccess Venture PartnersAlpine MeridianEarlybird Venture CapitalFarol Asset Management
EFI provides digital printing technology, software, and services for manufacturing and graphics production.
Advanced ManufacturingAI & Machine LearningEnterprise SoftwareHardwareIoTAlmazora, US
Efraim "Efi" Arazi(Founder)Frank Pennisi(Chief Executive Officer & Chief Product Officer)in
Co-investorsBlumberg Capital
Equiniti (EQ) provides shareholder engagement and ownership management services to public companies, private equity firms, and mutual funds, including transfer agent services, equity plan administration, corporate trust, and proxy solicitation across the company lifecycle.
Enterprise SoftwareFintechSaaSUK, GB
Gigamon delivers network-derived telemetry and traffic optimization for hybrid and multi-cloud environments, serving security, observability, analytics, and AI platforms.
Cloud ComputingCybersecurityData & Infrastructure
Shane BuckleyinTed Ho(Founder)
Co-investorsSilver Lake PartnersHighland Capital PartnersQatar Investment Authority
Mavenir develops cloud-native, AI-by-design software for mobile network operators, supporting the transition to automated, programmable telecom networks.
AI & Machine LearningCloud ComputingEnterprise SoftwareSaaS
Co-investorsAugust CapitalBright Pixel CapitalCisco InvestmentsCross Creek AdvisorsPartners for GrowthGreenspring+2 more
Provider of integrated clinical documentation solutions for the U.S. healthcare system.
Co-investorsOne Equity PartnersW Capital Partners
Ivanti provides integrated IT and security solutions for managing, automating, and protecting IT service management, network security, endpoint management, and exposure management across on-premises, cloud, and hybrid environments.
CybersecurityDeveloper ToolsEnterprise Software
Srinivas MukkamalainDennis KozakinDaniel S.inAjay Mishra(Founder)Suresh Batchu(Founder)
Co-investorsEastlink Capital PartnersFarol Asset ManagementStorm VenturesSun Mountain CapitalFoundation CapitalNorwest Venture Partners+2 more
Penguin Solutions provides memory and AI infrastructure software and systems for enterprises and cloud providers building AI deployments.
Advanced ManufacturingAI & Machine LearningCloud ComputingData & InfrastructureEnergyEnterprise SoftwareHardwareIoT
Co-investorsPartners for Growth
Global provider of standards-based unified communications solutions for voice, video, and content sharing.
Co-investorsAccelNorwest Venture PartnersOak Investment PartnersVedanta CapitalVenrockPIPELINE CAPITAL PARTNERS
Provider of security solutions for the mobile enterprise, including VPN and network access control.
BoardRV Chng(Founding Partner)
Co-investorsFarol Asset Management
TAKKION provides comprehensive service and support for renewable energy organizations across North America, covering project development, installation, and maintenance throughout the energy lifecycle.
Advanced ManufacturingCleantechConstruction TechEnergyEnterprise SoftwareLogistics & Supply ChainWyoming, US
Pete Bierden(CEO)in
TNS provides mission-critical infrastructure-as-a-service solutions to financial organizations, telecom enterprises, and payment providers across more than 60 countries through three distinct business markets.
Cloud ComputingData & InfrastructureEnterprise SoftwareFintechReston, US
Mike Keegan(Chief Executive Officer)inMark Cole(Chief Digital Infrastructure Officer)inJim McLaughlin(General Counsel and Secretary)Michael Johnson(Global Managing Director, Payments Market Business)inTom Lazenga(President, Waypoint Trading Solutions)inSeth Walton(General Manager, Communications Market Business)in
Co-investorsFlow Capital
TripServices is Travelport's cloud-native API platform for AI-driven travel, designed to help travel companies, OTAs, travel management companies, and agencies build, book, and scale travel products through a unified connection to flights and accommodations content.
AI & Machine LearningEnterprise SoftwareSaaSTravel & Hospitality
Co-investorsOne Equity Partners
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
IntralinksNewfold DigitalPGiStratusStratus TechnologiesTekelecTNS
Exits · 2
2 acquisitions · showing 1Maveniracq. by Mitel Networks
Fund performance · per public LP disclosures · 7
as of Sep 2023| Fund | Vintage | Committed | Net IRR | TVPI | DPI |
|---|---|---|---|---|---|
| Siris VLPs: Minnesota State Board of Investment | 2022 | — | 0.0% | — | — |
| Siris Partners IV LPLPs: Empire State Development – New York Ventures, California Public Employees' Retirement System, California State Teachers' Retirement System +12 more | 2019 | — | — | 1.30x | 0.35x |
| Siris Partners IVLPs: New York City Police Pension Fund | 2018 | — | -9.9% | 0.74x | 0.74x |
| Siris Co-InvestmentLPs: San Diego City Employees' Retirement System | 2015 | — | -64.5% | 0.26x | 0.26x |
| Siris IIILPs: Teachers' Retirement System of Oklahoma | 2015 | — | -0.9% | 0.97x | 0.75x |
| Siris Partners III LPLPs: Florida State Board of Administration, California Public Employees' Retirement System, Los Angeles County Employees Retirement Association +6 more | 2015 | — | -0.6% | 0.99x | 0.77x |
| Siris Partners II, L.P.LPs: San Diego City Employees' Retirement System | 2011 | — | -0.6% | 0.99x | 0.98x |
Source: public limited-partner disclosures (CalPERS, CalSTRS). Net IRR / TVPI / DPI as reported by the limited partner; a fund's early-year IRR is an interim estimate (J-curve).
Frequently asked questions
- How many investments has Siris made?
- Siris has 25 tracked investments, 2 of which have exited.
- What stage does Siris invest at?
- Siris invests at the Growth, Late Stage stages.
- What is Siris's typical check size?
- Siris typically writes checks of $100M – $500M.
- What sectors does Siris focus on?
- Siris focuses on Cloud Computing, Cybersecurity, Data & Infrastructure, E-commerce, Energy, Enterprise Software, Fintech, Healthtech, Marketing Tech, SaaS, Travel & Hospitality.
- Where is Siris located?
- Siris is headquartered in West Palm Beach, US.
- Does Siris lead rounds?
- Yes, Siris leads investment rounds.
- Who does Siris co-invest with?
- Siris most often shares deals with Farol Asset Management, Partners for Growth, CapitalG, among 32 tracked co-investors.
Media · Podcasts & interviews
featuring the teamFrank Baker, Co-Founder of Siris Capital, on Why He Moved to the Palm Beaches - YouTube
BDBPBC · Frank Baker
Images
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