About XenSource
XenSource is a Technology company based in Cambridge (United States) founded in 2004 by Parag Wadhone, and was acquired by Citrix in August 2007. Open source hypervisor technology is provided for enterprise server virtualization. XenSource has raised $21 million across 2 funding rounds from investors including Kleiner Perkins, Accel and Citrix. Its chief executive, as recorded, is Peter Levine. XenSource offers products and services including XenServer. Its focus areas include Enterprise Infrastructure, Virtualization, Hypervisor and Open Source. Its legal entity is Cloud Software Group, Inc. Its competitors include Virsto Software, Virtutech and Witsbits; 2 of its 3 listed competitors have raised funding.
Company details
XenSource was founded in 2004 in Cambridge, United States, focusing on virtualization software for the enterprise sector. Open source Xen hypervisor technology is offered, along with Xen Optimiser for multi-server management and subscription-based Xen Support. Enterprise solutions based on this hypervisor enable server utilization and data center enhancements. The company was acquired by Citrix Inc. in August 2007 for 500 million.
- Total Equity Funding$21M (USD)
in 2 rounds
- Latest Funding Round$15M (USD), Series C
Oct 2006
- InvestorsKleiner Perkins
& 4 more
- Acquired byCitrix
(Aug 2007)
Products & Services of XenSource
XenSource offers a comprehensive portfolio of products and services, including XenServer.
Software for server virtualization and efficient IT resource management.
Apps and channels of XenSource
its YouTube channel Citrix has 58.4K subscribers and 30 videos.
Videos from XenSource
The most watched videos on XenSource's YouTube channel, Citrix (58.4K subscribers). Click a video to play it here.
More on Citrix.
Funding Insights of XenSource
XenSource has successfully raised a total of $21M across 2 strategic funding rounds. The most recent funding activity was a Series C round of $15 million completed in October 2006. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $21M
- Total Rounds 2
- Last Round Series C β $15M
- First Round $6M
(Jan 2005)
- Investors Count 4
All 2 funding rounds of XenSource with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Oct 2006 | $15M | Series C | β | β | |
| Jan 2005 | $6M | Series A | β | Sevin Rosen, Intel Capital | β |
5 investors in total: 5 institutional.
Investors in XenSource
XenSource has secured backing from 5 investors, including venture fund and institutional investors. Prominent investors backing the company include Kleiner Perkins, Accel and Citrix.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Accel is recognized as a leading venture capital firm. | 1983 | accel.com | Palo Alto, United States | |
Venture capital firm investing in early-stage tech startups | 1972 | kleinerperkins.com | Menlo Park, United States | |
Early-stage US investments in technology and offline sectors are targeted. | srfunds.com | Dallas, United States | ||
Investment in technology startups focusing on compute, AI, and related innovations. | intelcapital.com | |||
Cloud-based virtualization for networks and desktops is delivered to businesses. | 1989 | citrix.com | Fort Lauderdale, United States |
Investor details for XenSource
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
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- Investor portfolios
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Verified entity values are shown only after access is granted.
People of XenSource
452 people are tracked at XenSource (143 in leadership, 1 in board & advisors, 308 in team).
| Name | Role | Group |
|---|---|---|
Parag Wadhone | Co-Founder | Leadership |
Peter Levine | CEO | Leadership |
Spencer Ryono | Vp, Americas Legal | Leadership |
Greg Peterson | Sr Director, Strategic Partner Management | Leadership |
Graham Frazer | Sr. Director, Enterprise Commercial Sales, U.s. & Canada | Leadership |
Soniya Bopache | General Manager, Arctera | Leadership |
Bhooshan Thakar | General Manager, InfoScale | Leadership |
Sabin Ielceanu | Chief Architect Data Integration | Leadership |
Stephanie Monk | Director, Customer Experience | Leadership |
Xiaowen Jin | Director, Customer Intelligence | Leadership |
Behrooz S. | Senior Director Of Finance | Leadership |
Rosa Lin | Senior Director Of Financial Planning And Analysis | Leadership |
Adrienne Schaal | Director, Legal Operations | Leadership |
Tom Krause | CEO | Leadership |
Tony Gomes | Chief Legal and Administrative Officer | Leadership |
Andy Nallappan | President & COO | Leadership |
Ric Chi | Chief Financial Officer | Leadership |
Ali Ahmed | President, TIBCO | Leadership |
Karen Arredondo | Strategic Partner Manager | Leadership |
Lee Fletcher | Senior Partner Alliance Manager. | Leadership |
432 more people are available in the full profile.
Complete people profiles for XenSource
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
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Timeline of XenSource
4 dated milestones of XenSource across 3 years, from founding to its latest funding, stage changes and deals.
- Founded XenSource is founded.
- Funding First funding round of $6.0M.
- Funding Latest funding round, Series C, of $15.0M.
- Exit Acquired by Citrix.
Competitors of XenSource
XenSource has 3 listed competitors in our database, 2 of them funded. They include Virsto Software, Virtutech and Witsbits.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| virsto.com | 2007 | Sunnyvale, United States | $24M | Storage virtualization is provided at the virtual machine layer. | ||
| virtutech.com | 1998 | San Jose, United States | Cloud-based software solutions for intelligent connected systems are developed. | |||
| witsbits.com | 2004 | San Francisco, United States | $144,557 | Cloud virtualization software is provided to manage IT infrastructure deployment. |
Detailed competitors of XenSource
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
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- Benchmarks
- Competitive positioning
Verified entity values are shown only after access is granted.
Web traffic of XenSource
Websites that share an audience with XenSource (xensource.com).
Websites whose visitors overlap most with XenSource. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
virtualbox.org | virtualbox.org | 100% | #25,071 | β | |
| w3.org | 85% | #19,591 | View details | ||
bochs.sourceforge.net | bochs.sourceforge.net | 85% | β | ||
virtualization.info | virtualization.info | 83% | β | ||
attivissimo.blogspot.it | attivissimo.blogspot.it | 82% | β | ||
| β’β’β’β’β’β’β’β’β’β’ | β’β’β’β’β’β’.com | β’β’% | β’.β’M | #β’β’β’β’β’ | β |
| β’β’β’β’β’β’β’β’β’β’ | β’β’β’β’β’β’.com | β’β’% | β’.β’M | #β’β’β’β’β’ | β |
| β’β’β’β’β’β’β’β’β’β’ | β’β’β’β’β’β’.com | β’β’% | β’.β’M | #β’β’β’β’β’ | β |
All 24 similar websites and full traffic analytics for XenSource
The complete similar-websites list, audience overlap and engagement analytics require an active premium plan.
- 24 similar websites
- Audience overlap
- Engagement analytics
- Traffic by brand
Verified entity values are shown only after access is granted.
Top companies in Operating Systems & Virtualization
3 companies that operate in the same segment as XenSource (Operating Systems & Virtualization) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Cloud orchestration solutions are provided for multi-cloud and device applications. | 1998 | Palo Alto, California, United States | USD 595.83 M | USD 812.05 M | 8,861 | |
OpenStack distribution and Kubernetes cluster management are facilitated across clouds. | 1993 | Raleigh, North Carolina, United States | ||||
Cloud-based unified communications and virtual infrastructure services are provided. | 2006 | Wayne, United States | USD 209.25 M |
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Related news about Xensource
Complete news archive for XenSource
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Frequently Asked Questions about XenSource
XenSource was founded in 2004 and raised its 1st funding round 1 year after it was founded.
XenSource is headquartered in Cambridge, United States. It is registered at Cambridge, Massachusetts, United States.
Peter Levine is the CEO of XenSource, as recorded in our data.
XenSource is a funded company, having raised a total of $21M across 2 funding rounds to date. The company's 1st funding round was a Series A of $6M, raised on Jan 2005.
XenSource was founded in 2004 in Cambridge, United States, focusing on virtualization software for the enterprise sector. Open source Xen hypervisor technology is offered, along with Xen Optimiser for multi-server management and subscription-based Xen Support. Enterprise solutions based on this hypervisor enable server utilization and data center enhancements. The company was acquired by Citrix Inc. in August 2007 for 500 million.
XenSource's top competitors include Virtutech, Virsto Software and Witsbits.
XenSource offers XenServer.
XenSource has 5 investors. Key investors include Kleiner Perkins, Accel, Citrix, Sevin Rosen, and Intel Capital.
XenSource operates through Cloud Software Group, Inc..
Yes. XenSource was acquired by Citrix in August 2007.

