QEMU
QEMU is a free, open source machine emulator and virtualizer supporting full-system emulation, user-mode emulation, and KVM/Xen hardware virtualization across x86, ARM, RISC-V, s390, PowerPC, HPPA, and LoongArch. It serves software developers, embedded systems engineers, and cloud infrastructure providers under a non-commercial, donation-funded model.
- Company typePrivate
- Founded2003
- HeadquartersBoston, United States
- Headcount—
- GTM typeB2B
- OfferingSoftware
What QEMU does
QEMU is a generic, open source machine emulator and virtualizer created in 2003 by Fabrice Bellard and maintained as a member project of the Software Freedom Conservancy. It operates in three primary modes: full-system emulation (running complete operating systems for any supported target architecture), user-mode emulation (running foreign-architecture binaries on a host), and hardware-assisted virtualization via KVM and Xen for near-native performance. The codebase supports a broad set of CPU architectures — x86, ARM, RISC-V, s390, PowerPC, HPPA, MIPS, and LoongArch — and includes a proprietary dynamic binary translation engine called the Tiny Code Generator (TCG), extensive device emulation, and management protocols (QMP, HMP, QEMU Guest Agent, NBD). The project is governed by a six-member Leadership Committee with a rule limiting same-employer representation to one-third of seats.
QEMU's business model is non-commercial: the software is released under GPLv2 and distributed at no cost via source tarballs, Linux distribution package managers (apt, dnf, pacman, zypper, yum, emerge), Homebrew and MacPorts on macOS, and MSYS2 on Windows. There is no pricing, no paid product, and no disclosed revenue. Operational support comes from individual donations processed via Software Freedom Conservancy and from in-kind infrastructure contributions by corporate sponsors including AWS, DigitalOcean, Equinix, IBM LinuxONE Community Cloud, and Oregon State University Open Source Labs. The user base spans software developers, embedded systems and IoT engineers, and cloud infrastructure providers using QEMU as part of the KVM/Xen virtualization stack. The project maintains a stable contributor base of 188-268 authors per major release and participates in Google Summer of Code and industry conferences (KVM Forum, FOSDEM) for community engagement.
QEMU firmographics
Firmographics- Name
- QEMU
- Legal name
- QEMU
- Website
- https://qemu.org
- Company type
- Private
- Founded year
- 2003
- Operating status
- Operating
- Short description
- QEMU is a free, open source machine emulator and virtualizer supporting full-system emulation, user-mode emulation, and KVM/Xen hardware virtualization across x86, ARM, RISC-V, s390, PowerPC, HPPA, and LoongArch. It serves software developers, embedded systems engineers, and cloud infrastructure providers under a non-commercial, donation-funded model.
- Ownership category
- akta.pro rank
QEMU industry classification
Industry- Product category
- Open Source Virtualization Software
- NAICS
- Custom Computer Programming Services (541511), Computer Systems Design Services (541512), Computer Systems Design and Related Services (5415)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Integrated Systems Design (7373), Services-Computer Programming Services (7371)
- akta.pro primary industry
- Virtual Desktop & Application Virtualization (VDI) (HDABADAH)
Keywords
Where QEMU is headquartered
LocationHeadquarters
- HQ city
- Boston
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
QEMU business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Infrastructure, Operations, Others
Revenue model
- Open Source Software: QEMU is free and open source software released under GNU General Public License version 2. There is no commercial revenue model. The project is maintained by a global community of volunteers and supported by corporate sponsors who provide resources (software, hardware, monetary) to assist in operations.
Go-to-market motion1 record
Distribution channels7 records
Marketing channels8 records
QEMU product offering
Product offeringCore offering
QEMU is a generic and open source machine emulator and virtualizer that runs in three primary modes: full-system emulation (running complete operating systems for any machine on any supported architecture), user-mode emulation (running programs compiled for another Linux/BSD target on the host), and hardware-assisted virtualization via KVM and Xen for near-native performance. The software is released under GNU General Public License version 2 and is complemented by utility tools such as qemu-img, qemu-nbd, qemu-storage-daemon, and the QEMU Guest Agent.
Product overview
QEMU is a generic and open source machine emulator and virtualizer that operates in three primary modes: full-system emulation for running complete operating systems on any supported architecture, user-mode emulation for running programs compiled for a different architecture, and hardware-accelerated virtualization using KVM or Xen for near-native performance. The core product is complemented by a suite of command-line tools including qemu-img for disk image manipulation, qemu-storage-daemon for storage services, qemu-nbd for network block device access, and the QEMU Guest Agent for guest management. QEMU provides multiple management interfaces including QMP (QEMU Machine Protocol) for programmatic control and HMP (Human Machine Protocol) for interactive use. The project is hosted by Software Freedom Conservancy and maintains active participation in Google Summer of Code.
Differentiator
Problem solved
Functional benefit
Products and services
- QEMU QEMU is a generic and open source machine emulator and virtualizer that operates in three primary modes: full-system emulation for running complete operating systems on any supported architecture (x86, ARM, RISC-V, s390, PowerPC, HPPA, MIPS, LoongArch), user-mode emulation for running programs compiled for a different architecture, and hardware-accelerated virtualization using KVM or Xen for near-native performance. It is released under GPLv2 and is for software developers, system administrators, embedded/IoT engineers, and cloud infrastructure providers.
- QEMU Guest Agent (qemu-ga) An agent that runs inside guest virtual machines to enable host-to-guest communication, quiescing filesystems, and other management operations. It is part of the QEMU distribution and is used by virtualization management tools to coordinate guest and host activities.
- qemu-img disk image utility Command-line utility bundled with QEMU for creating, converting, and manipulating virtual disk images in formats including QCOW2, QED, raw, VMDK, and others. Used by administrators and developers to manage VM storage.
- qemu-nbd Network Block Device server Server utility that exposes QEMU disk images over the Network Block Device (NBD) protocol, enabling remote access to virtual machine disk images for backup, migration, and inspection.
- qemu-storage-daemon Standalone QEMU storage daemon providing block device and network block device server functionality for managing virtual disk images outside of full VM emulation.
Quantifiable outcome
- 2500+ commits and 237 authors contributing to major release
- +1 more outcomes
Companies that use QEMU
Customer profileSegments3 records
Ideal customer profiles3 records
QEMU technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability2 records
Feature8 records
QEMU partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core.
- Oregon State University Open Source LabscoreOSUOSL provides QEMU and Patchew project with access to compute hosts for continuous integration and testing infrastructure.
- GNOMEcoreGNOME hosts QEMU's download infrastructure, making release tarballs available to users worldwide through gnome.org infrastructure.
- GitLab for Open SourcecoreQEMU participates in GitLab's open source program providing free access to GitLab Enterprise features for the project.
- Software Freedom ConservancycoreQEMU is a member of Software Freedom Conservancy, a not-for-profit organization that provides legal and administrative assistance, holds project assets including domain names and funds/donations, and facilitates governance through a Leadership Committee.
- KVMcoreQEMU integrates deeply with KVM (Kernel-based Virtual Machine) to provide hardware-assisted virtualization with near-native performance. Listed as a related project on the QEMU website.
- Xen ProjectcoreQEMU provides device emulation for Xen virtual machines. Listed as a related project on the QEMU website.
- LibvirtcoreLibvirt is a virtualization API that can manage QEMU/KVM virtual machines. QEMU documentation recommends using virt-manager from the libvirt project for complex configurations.
Scale indicators7 records
Recent moves6 records
Expansion highlights5 records
QEMU competitors and assessment
Company assessmentMarket position
Competitive moat7 records
Key risks5 records
Key highlights6 records
Customer concentration
QEMU social profiles
Digital presenceQEMU financial estimates
Financial estimateRevenue estimate
Valuation estimate
QEMU leadership team
Management profileNumber of profiles
Profiles6 records
QEMU funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
QEMU M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about QEMU
What does QEMU do?
QEMU is a generic and open source machine emulator and virtualizer that runs in three primary modes: full-system emulation (running complete operating systems for any machine on any supported architecture), user-mode emulation (running programs compiled for another Linux/BSD target on the host), and hardware-assisted virtualization via KVM and Xen for near-native performance. The software is released under GNU General Public License version 2 and is complemented by utility tools such as qemu-img, qemu-nbd, qemu-storage-daemon, and the QEMU Guest Agent.
Is QEMU a public or private company?
QEMU is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was QEMU founded?
QEMU was founded in 2003.
Where is QEMU based?
QEMU is headquartered in Boston, United States, in the North America region.
How does QEMU make money?
One revenue line is on record: open Source Software.
Does QEMU have an API?
No public API is recorded for QEMU.
What industry is QEMU in?
QEMU's product category is Open Source Virtualization Software. Its primary akta.pro industry code is HDABADAH, Virtual Desktop & Application Virtualization (VDI). Its NAICS code is 541511 and its SIC code is 7372.