Lynx Software Technologies
An American software company focused on secure virtualization and reliable, certifiable real-time operating systems for mission-critical embedded systems.
Last updated November 4, 2026
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Overview
Lynx Software Technologies is a San Jose, California-based software company that develops operating systems, hypervisor technology, and modular software-development tools for embedded systems in which security, determinism, safety certification, and long-term reliability are important. Its technology is associated particularly with aerospace and defense, but the company also addresses industrial automation, automotive systems, medical equipment, communications infrastructure, and uncrewed aircraft and satellite platforms. The company was established in 1988 as Lynx Real-Time Systems. Its early strategy centered on bringing open computing interfaces to embedded development. LynxOS, its principal real-time operating system, combined a UNIX-like user model with POSIX interfaces, helping developers use familiar software concepts while targeting devices with strict timing and resource constraints. In 1989, LynxOS was selected for the NASA and IBM Space Station Freedom project, an early high-profile deployment that helped establish the company in aerospace and other demanding embedded markets. The business changed its corporate identity after acquiring and merging with Integrated Software & Devices Corporation, an embedded-systems company with a substantial Linux background. In 2000, the combined organization adopted the name LynuxWorks. In May 2014, it changed its name again to Lynx Software Technologies, aligning the corporate brand more closely with its broader portfolio of secure systems software rather than with a single operating-system product. LynxOS remains the foundation of the portfolio. It is designed as a hard real-time operating system, with features such as preemptive scheduling, real-time priorities, predictable response behavior, memory locking, and a ROMable kernel. The company also developed LynxOS-178, a specialized version for avionics and other safety-critical applications. LynxOS-178 was designed around the objectives of the FAA's DO-178B and later DO-178C software-safety standards, including the demanding Design Assurance Level A category. It supports POSIX, ARINC, and FACE-related application requirements and received an FAA Reusable Software Component certificate, enabling approved reuse in qualifying certification projects. In 2005, Lynx introduced the LynxSecure Hypervisor and separation kernel. This type-1, bare-metal technology isolates workloads and allocates computing resources across multicore processors. It became an important architectural component in the company's approach to mixed-criticality systems, where applications with different security, safety, or timing requirements must share hardware without compromising their isolation. The company broadened this approach with LYNX MOSA.ic, announced in 2019. The framework is intended to help developers assemble mission-critical systems from independently managed software modules. It can combine LynxOS-178, Linux, Windows, third-party operating systems, and bare-metal applications while using LynxSecure to partition and protect system resources. Product bundles have been aimed at avionics, industrial systems, and UAV and satellite applications. The industrial offering has also been associated with technologies such as Microsoft Azure IoT Edge and Windows 10, while the avionics offering supports Arm and x86 environments. LYNX MOSA.ic reflects the Modular Open Systems Approach used in contemporary defense and aerospace programs. In early 2020, Lynx announced that the F-35 Joint Strike Fighter modernization effort had adopted the framework for upgraded mission-system development. The company has also announced collaborations involving Advantech, CODESYS Group, Collins Aerospace, Microsoft Azure Marketplace, and other ecosystem participants. These relationships position Lynx as an enabling software supplier rather than as a consumer-facing application brand. Its competitive proposition is based on deterministic operation, security through isolation, open interfaces, certification support, and the ability to reuse software across hardware and program generations.
History
Lynx Software Technologies began in 1988 as Lynx Real-Time Systems, a company focused on operating-system software for embedded computers. From the beginning, it pursued an open and developer-oriented model for real-time systems. LynxOS offered a UNIX-like environment and POSIX interfaces, allowing embedded developers to use standardized programming and operating-system concepts while meeting the timing requirements of devices and control systems. A notable early milestone came in 1989, when LynxOS was selected for the NASA and IBM Space Station Freedom project. The aerospace association reinforced the company's position in applications where software reliability and predictable behavior are more important than consumer features. Over time, Lynx operating systems were used in medical, industrial, communications, automotive, and defense-related systems. The company expanded its identity and technical base through the acquisition and merger of Integrated Software & Devices Corporation, commonly known as ISDCorp. ISDCorp brought embedded-systems and Linux expertise. Following the transaction, the company changed its name to LynuxWorks in 2000. The new name reflected the combined organization's Linux-related background while preserving the Lynx operating-system heritage. In May 2014, it became Lynx Software Technologies, a name intended to cover a wider portfolio of systems software, virtualization, and development technologies. LynxOS evolved as a hard real-time operating system with preemptive scheduling, real-time priorities, predictable worst-case response behavior, memory locking, and support for embedded deployment. In 2003, the company introduced LynxOS-178 for avionics and other safety-critical environments. The product was designed to meet the objectives of the FAA DO-178B software standard at Design Assurance Level A and was subsequently associated with DO-178C-compliant certification work. It supports native POSIX application development and interfaces relevant to avionics architectures, including ARINC APIs and FACE-related requirements. The FAA awarded LynxOS-178 a Reusable Software Component certificate, a significant distinction for reuse in qualifying avionics certification programs. In 2005, Lynx released LynxSecure, a bare-metal type-1 hypervisor and separation kernel. Rather than treating security as an add-on, the technology uses hardware-assisted partitioning to isolate applications and allocate processor, memory, and other system resources. This approach is suited to mixed-criticality designs in which independent workloads may need to run on a shared multicore platform while retaining separate security or safety boundaries. The company's modular systems strategy became more explicit with the February 2019 announcement of LYNX MOSA.ic. The framework was designed to help developers build secure and safety-critical systems from independent application modules. It can host LynxOS-178, Linux, Windows, third-party operating systems, and bare-metal applications within a partitioned environment based on LynxSecure. Lynx has presented versions for avionics, industrial systems, and UAV and satellite applications, with the products collectively positioned around mission-critical edge computing. LYNX MOSA.ic was developed in the context of the defense and aerospace Modular Open Systems Approach. In early 2020, Lynx announced that the F-35 Joint Strike Fighter's TR3 modernization effort had adopted the framework for upgraded mission-system avionics development. During 2021, the company announced ecosystem activities with Collins Aerospace, Advantech, and CODESYS Group, while also placing LYNX MOSA.ic for Industrial on Microsoft Azure Marketplace. These moves connected the platform to flight computers, industrial control, IT/OT convergence, and cloud-connected edge systems. The company's present identity is therefore broader than that of a conventional RTOS vendor. It supplies a stack spanning hard real-time operating systems, certified avionics software, separation-kernel virtualization, and modular integration tools. Its market proposition is aimed at organizations that need long-lived, certifiable, isolated, and interoperable software for systems whose failure can affect safety, security, mission performance, or industrial continuity.
- 2021
Industrial and avionics ecosystem expanded
[1]Lynx announced collaborations involving Advantech, CODESYS Group, and Collins Aerospace and distributed LYNX MOSA.ic for Industrial through Azure Marketplace.
- 2020
F-35 modernization adoption announced
[1]The company announced use of LYNX MOSA.ic in the TR3 modernization effort for the F-35 program.
- 2019
LYNX MOSA.ic announced
[1]Lynx announced a modular software framework for secure and safety-critical systems.
- 2014
Company becomes Lynx Software Technologies
[1]LynuxWorks changed its corporate name to Lynx Software Technologies in May 2014.
- 2005
LynxSecure released
[1]The company released its bare-metal hypervisor and separation-kernel technology for isolating workloads on embedded computing platforms.
- 2003
LynxOS-178 introduced
[1]Lynx introduced a specialized real-time operating system for avionics certification and other safety-critical applications.
- 2000
Company becomes LynuxWorks
[1]After acquiring and merging with ISDCorp, the company adopted the LynuxWorks name.
- 1989
LynxOS selected for Space Station Freedom
[1]LynxOS was selected for the NASA and IBM Space Station Freedom project.
- 1988
Company founded as Lynx Real-Time Systems
[1]The company was established in the United States to develop real-time operating-system technology for embedded systems.
Products and positioning
Mission-critical embedded software provider emphasizing deterministic real-time performance, security isolation, open standards, safety certification, and modular deployment across multicore hardware.
Hard real-time operating system
LynxOS
LynxOS is the company's general-purpose hard real-time operating system for embedded systems. It combines a UNIX-like user model and POSIX interfaces with deterministic scheduling, predictable worst-case response behavior, memory locking, and a ROMable kernel. The platform is intended for systems where timing and reliability are central design requirements, including industrial, communications, medical, automotive, aerospace, and defense applications. Later releases have been positioned as secure, multicore-capable operating systems that allow developers to incorporate protection during system design.
Safety-certifiable avionics RTOS · 2003
LynxOS-178
LynxOS-178 is a specialized real-time operating system for avionics and other applications subject to rigorous software-safety assurance. It was introduced in 2003 and developed around FAA DO-178B and DO-178C objectives, including Design Assurance Level A work. The product supports POSIX applications, ARINC interfaces, and FACE-oriented development. Its FAA Reusable Software Component certificate is intended to support reuse in eligible certification projects, reducing the need to treat each deployment as an entirely new software component.
Secure virtualization · 2005
LynxSecure Hypervisor and Separation Kernel
LynxSecure is a bare-metal type-1 hypervisor and separation kernel released in 2005. It uses hardware virtualization and partitioning to isolate applications, operating systems, and critical system resources on multicore processors. The technology supports mixed-criticality architectures in which Linux, Windows, Lynx operating systems, and bare-metal applications may coexist while retaining defined boundaries. LynxSecure also serves as a foundation for the company's modular LYNX MOSA.ic framework.
Mission-critical software-development framework · 2019
LYNX MOSA.ic
LYNX MOSA.ic is a modular development and integration framework announced in 2019. It helps developers compose secure and safety-critical systems from independent software modules rather than treating a complete platform as one inseparable application. The framework can support LynxOS-178, Linux, Windows, third-party operating systems, and bare-metal applications, with LynxSecure providing isolation and resource partitioning. Product bundles target avionics, industrial automation, and UAV and satellite systems, and the framework has been associated with defense programs using a Modular Open Systems Approach.
Marketing campaigns
- 2021LYNX MOSA.ic Mission Critical Edge ecosystem
Industrial automation · IT/OT convergence · Avionics · UAV and satellite systems
Lynx expanded the Mission Critical Edge positioning of LYNX MOSA.ic through industrial starter kits with Advantech, control-automation integration with CODESYS Group, an avionics relationship with Collins Aerospace, and marketplace distribution through Microsoft Azure.
Outcome. The initiatives broadened the framework's ecosystem and connected it with industrial control, flight-computing, and cloud-edge deployment scenarios.
Brand decisions
2019
Launched the LYNX MOSA.ic frameworkProduct launchBackground
Developers of aerospace, defense, industrial, automotive, and uncrewed systems increasingly sought modular architectures that could isolate and reuse software across hardware platforms.
Action taken
Lynx announced LYNX MOSA.ic, built on LynxSecure and designed to combine independent modules, operating systems, and bare-metal applications.
Aftermath
The framework became a central part of Lynx's mission-critical edge strategy and was later associated with F-35 modernization and partner integrations.
2014
Rebranded as Lynx Software TechnologiesStrategyBackground
The company had expanded beyond its original real-time operating-system focus into virtualization and broader systems software.
Action taken
In May 2014, LynuxWorks changed its name to Lynx Software Technologies.
Aftermath
The revised brand presented the business as a broader provider of secure embedded software technologies.
2000
Adopted the LynuxWorks name after the ISDCorp transactionM&ABackground
The company acquired and merged with Integrated Software & Devices Corporation, an embedded-systems company with Linux expertise.
Action taken
It changed its name from Lynx Real-Time Systems to LynuxWorks.
Aftermath
The new identity reflected a combined embedded-software and Linux-oriented business while retaining the Lynx product heritage.
Recent events
- 2021
LYNX MOSA.ic for Industrial becomes available through Microsoft Azure Marketplace[1]
Product launch
Lynx made its industrial modular software offering available through Microsoft Azure Marketplace, extending the framework's distribution into cloud-connected industrial environments.
- 2021
Lynx announces collaborations for industrial and avionics deployments[1]
M&A · Other
Lynx announced collaborations with Advantech for Mission Critical Edge starter kits, with CODESYS for industrial control integration, and with Collins Aerospace for the Perigon flight computer.
- 2020
F-35 modernization effort adopts LYNX MOSA.ic[1]
Product launch · Other
Lynx announced that the TR3 modernization program associated with the F-35 Joint Strike Fighter had adopted LYNX MOSA.ic for upgraded mission-system development.
- 2019
Lynx announces the LYNX MOSA.ic modular software framework[1]
Product launch
Lynx introduced LYNX MOSA.ic as a framework for assembling secure and safety-critical systems from independent software modules.
- 2014
LynuxWorks changes its name to Lynx Software Technologies[1]
Other
The company adopted the Lynx Software Technologies name in May 2014 as its portfolio expanded beyond the LynxOS operating-system identity.
- 1989
LynxOS selected for the NASA and IBM Space Station Freedom project[1]
Other
LynxOS was selected for use in the Space Station Freedom project, giving the young real-time operating-system company an early aerospace reference.
Sources1 sources
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