AOSP Companies: Who’s Building Open-Source Android?

The Android Open Source Project (AOSP) is the foundation of the Android operating system. While Google maintains AOSP, many companies modify it to create custom ROMs, enterprise solutions, and privacy-focused operating systems. These companies provide users and businesses with more control, security, and customization than stock Android.

Some focus on privacy, removing Google services and tracking, while others build optimized Android versions for enterprises, automotive systems, or IoT devices. Whether it’s for custom ROMs, secure Android deployments, or specialized hardware, AOSP companies play a key role in shaping the Android ecosystem. In this article, we’ll explore the businesses behind AOSP, what they develop, and how they impact the Android experience.

1. AI Superior

We at AI Superior specialize in AI-driven software development and Android Open Source Project (AOSP)-based solutions. Since our founding in 2019 in Darmstadt, Germany, we have been working with businesses to integrate artificial intelligence, big data analytics, and machine learning into their operations. Our goal is to create custom AI-powered applications, predictive models, and automation tools that improve efficiency and decision-making.

As an AOSP company, we develop custom Android-based software, modify AOSP builds, and create AI-enhanced mobile applications for enterprises. Our team works closely with clients who need tailored AOSP environments, secure Android-based systems, or AI-integrated mobile solutions. We also provide consulting services to optimize AOSP-based platforms for better performance, security, and automation.

Key Highlights:

• Founded in 2019 in Darmstadt, Germany
• Works with AOSP-based software and AI-enhanced Android applications
• Develops AI solutions for enterprises and industries
• Provides big data analytics and machine learning development
• Offers AOSP modifications and AI-driven Android software

Services:

• Custom AOSP-based software development
• AI-powered Android applications
• Big data analytics and machine learning solutions
• AOSP optimization for security and performance
• Android AI-driven automation tools
• AI consulting for AOSP-based environments
• Geospatial AI development
• Custom embedded Android software

Contact Information:

• Website: www.aisuperior.com
• Email: info@aisuperior.com 
• LinkedIn: www.linkedin.com/company/ai-superior
• Facebook: www.facebook.com/aisuperior 
• Instagram: www.instagram.com/ai_superior
• Twitter: www.x.com/aisuperior 
• Address: Robert-Bosch-Str. 7, 64293 Darmstadt, Germany
• Phone Number: +49 6151 3943489

2. The Calyx Institute

The Calyx Institute is a non-profit organization that focuses on privacy and security in digital communications. Based in Brooklyn, New York, the organization develops open-source privacy tools and promotes internet freedom. One of its major projects is CalyxOS, an Android Open Source Project (AOSP) company that builds a privacy-focused, de-Googled Android operating system. CalyxOS is designed for users who want enhanced security, encrypted communications, and minimal tracking from service providers, app developers, and advertisers.

Beyond CalyxOS, The Calyx Institute operates VPN services, Jabber instant messaging, and Tor exit nodes, supporting global internet privacy. The organization educates individuals and institutions on protecting their digital rights through secure mobile operating systems and internet security tools. As an AOSP-based platform, CalyxOS allows users to run Android without relying on Google services, giving them control over their privacy while maintaining app compatibility.

Key Highlights:

• An Android Open Source Project (AOSP) company focused on privacy
• Developer of CalyxOS, a privacy-first, de-Googled Android OS
• Supports VPN services, Jabber messaging, and Tor exit nodes
• Works on internet privacy, security education, and encrypted communications

Services:

• CalyxOS development – AOSP-based Android OS with enhanced privacy features
• Free VPN service – Privacy-focused VPN to secure online activity
• Jabber instant messaging – Encrypted XMPP-based chat service
• Tor network support – Operation of Tor exit nodes to support anonymous internet browsing
• Digital privacy education – Advocacy and training on protecting user data

Contact Information:

• Website: www.calyxinstitute.org
• Email: help@calyxinstitute.org
• Facebook: www.facebook.com/calyxinstitute
• Instagram: www.instagram.com/calyxinsta
• Twitter: www.x.com/calyxinstitute
• Address: Calyx Institute, 254 36th St Unit 48, Brooklyn NY 11232 USA
• Phone Number: +1 (212) 966-1900

3. GrapheneOS

CopperheadOS is a privacy and security-focused mobile operating system based on the Android Open Source Project (AOSP). Established in 2014, it aims to enhance the privacy and security features of standard Android without compromising app compatibility. The project emphasizes research and development in areas such as sandboxing, exploit mitigations, and permission models to create a more secure mobile environment. 

Initially known as CopperheadOS, the project underwent rebranding to GrapheneOS following a split from its original sponsor in 2018. Since then, it has operated as an independent, non-profit open-source project. GrapheneOS is compatible with various Google Pixel devices, offering users an alternative to standard Android with enhanced security measures. 

Key Highlights:

• Privacy and security-focused mobile OS
• Based on the Android Open Source Project (AOSP)
• Established in 2014
• Formerly known as CopperheadOS
• Compatible with Google Pixel devices

Services:

• Development of a secure mobile operating system
• Enhancements in sandboxing and exploit mitigations
• Improved permission models for applications
• Regular security updates and patches

Contact Information:

• Website: www.grapheneos.org
• Email: contact@grapheneos.org
• LinkedIn: www.linkedin.com/company/grapheneos
• Twitter: www.x.com/GrapheneOS

4. LineageOS

LineageOS is an open-source operating system for smartphones, tablets, and set-top boxes, based on the Android Open Source Project (AOSP). It emerged in December 2016 as the successor to CyanogenMod, following the discontinuation of Cyanogen Inc.’s services and the termination of CyanogenMod. Developed by a community of contributors worldwide, LineageOS offers users a customizable and bloatware-free alternative to the standard Android OS, aiming to extend the lifespan and functionality of mobile devices.

The project emphasizes user privacy and security, providing regular updates and a transparent development process. LineageOS supports a wide range of devices from various manufacturers, allowing users to personalize their devices while maintaining control over their data. The operating system includes features such as enhanced customization options, root access management, and a streamlined interface, catering to both casual users and enthusiasts seeking greater control over their devices.

Key Highlights:

• Open-source operating system based on AOSP
• Successor to CyanogenMod, established in December 2016
• Focus on user privacy, security, and customization
• Supports a wide range of devices from various manufacturers
• Developed and maintained by a global community of contributors

Services:

• Development of a customizable Android-based operating system
• Regular security updates and patches
• Support for a broad spectrum of devices
• Community-driven development and support
• Provision of open-source applications and tools

Contact Information:

• Website: www.lineageos.org

5. Copperhead

Copperhead is a Canadian cybersecurity firm specializing in mobile security solutions. Based in Toronto, Ontario, the company focuses on enhancing the security and privacy of Android devices. Their flagship product, CopperheadOS, is a hardened version of the Android Open Source Project (AOSP), designed to protect against various attack vectors and provide users with a secure mobile operating system. 

CopperheadOS incorporates several security features, including a hardened Linux kernel, enhanced sandboxing, and application isolation. It is compatible with select Google Pixel devices and integrates with enterprise mobile device management programs, making it suitable for both individual users and organizations seeking robust mobile security solutions. 

Key Highlights:

• Canadian cybersecurity firm 
• Developer of CopperheadOS, a hardened AOSP-based operating system
• Focus on mobile security and privacy enhancements
• Compatible with select Google Pixel devices
• Integration with enterprise mobile device management programs

Services:

• Development of CopperheadOS, a secure Android-based operating system
• Mobile security consulting and solutions
• Integration support for enterprise mobile device management
• Continuous security updates and patches

Contact Information:

• Website: www.copperhead.co
• Email: info@copperhead.co
• LinkedIn: www.linkedin.com/company/copperhead-security
• Facebook: www.facebook.com/secureyourandroid
• Twitter: www.x.com/copperheadsec
• Address: 132 Jarvis Street, Toronto, Ontario, Canada

6. e Foundation

e Foundation is a non-profit organization that develops an Android Open Source Project (AOSP)-based operating system focused on privacy. Founded by Gaël Duval, the foundation created /e/OS, a de-Googled Android version that removes Google services while maintaining app compatibility. It is designed to reduce data collection and tracking while providing essential mobile functions. The foundation also develops Murena Cloud, a cloud service that includes email, calendar, contacts, and file storage.

The foundation provides AOSP-based mobile software and privacy-focused online services. /e/OS is compatible with multiple Android devices, offering built-in alternatives for search, maps, and cloud storage. The organization continues to expand support for devices and improve privacy-focused software tools.

Key Highlights:

• Non-profit organization focused on privacy
• Developer of /e/OS, a Google-free AOSP-based OS
• Offers Murena Cloud, an encrypted cloud storage service
• Founded by Gaël Duval, known for open-source development
• Provides software tools for data privacy and security

Services:

• Development of /e/OS, a privacy-focused AOSP mobile OS
• Murena Cloud for email, calendar, and file storage
• Support for Google-free app alternatives
• Software updates and security improvements
• Open-source contributions and community support

Contact Information:

• Website: www.e.foundation
• LinkedIn: www.linkedin.com/company/eelo.io
• Twitter: www.x.com/e_mydata

 

7. BlackBerry Limited

BlackBerry Limited is a software and cybersecurity company headquartered in Waterloo, Canada. The company was initially known for its BlackBerry smartphones before transitioning into enterprise security and software solutions. BlackBerry develops cybersecurity technologies, secure communications platforms, and endpoint security solutions for businesses, governments, and critical infrastructure. One of its key offerings is SecuSUITE, an encrypted communication platform designed to protect voice, text, and data transmissions from cyber threats.

BlackBerry is also an Android Open Source Project (AOSP) company, integrating AOSP-based security solutions into its enterprise mobile offerings. In the past, BlackBerry developed BlackBerry Secure, a hardened version of AOSP for secure mobile devices. While the company no longer manufactures smartphones, its AOSP-based security framework continues to be used in government, defense, and enterprise applications. BlackBerry focuses on cybersecurity, IoT software, AI-driven threat detection, and secure communication technologies to protect critical data and infrastructure.

Key Highlights:

• Headquartered in Waterloo, Canada
• Transitioned from smartphones to enterprise cybersecurity and software
• Developer of SecuSUITE, an encrypted communication platform
• Android Open Source Project (AOSP) company with AOSP-based security solutions
• Provides cybersecurity and endpoint security for businesses and governments

Services:

• Cybersecurity solutions for enterprise and government networks
• AOSP-based mobile security solutions
• SecuSUITE encrypted communications platform
• Endpoint security and management for mobile and IoT devices
• AI-driven threat detection and response

Contact Information:

• Website: www.blackberry.com
• Email: support@certicom.com
• LinkedIn: www.linkedin.com/company/blackberry
• Facebook: www.facebook.com/BlackBerry
• Instagram: www.instagram.com/blackberry
• Twitter: www.x.com/blackberry
• Phone Number: 1-877-255-2377

8. Havoc-OS

Havoc-OS is an Android Open Source Project (AOSP)-based custom ROM developed to provide a near-stock Android experience with additional features and customization options. It includes modifications inspired by Google Pixel devices and offers a refined user interface, performance optimizations, and enhanced functionality. 

For devices that do not have official support, Havoc-OS provides Generic System Images (GSI), allowing users to install the ROM on a broader range of hardware. The project is led by Anushek Prasal (SKULSHADY) and supported by a small development team. Havoc-OS is open-source, with its resources available on platforms like GitHub and Telegram, and focuses on providing a stable and customizable Android experience.

Key Highlights:

• AOSP-based custom ROM with additional features
• Generic System Images (GSI) available for unsupported devices
• Led by Anushek Prasal (SKULSHADY)
• Community-driven project with open-source development

Services:

• Development of custom AOSP-based firmware
• Support for Generic System Images (GSI)
• Regular updates and feature enhancements
• Community support and open-source contributions
• Device-specific optimizations

Contact Information:

• Website: www.havoc-os.com

9. Replicant

Replicant is an Android Open Source Project (AOSP)-based operating system that removes proprietary components from Android. It focuses on providing a fully free and open-source mobile OS, replacing non-free drivers and firmware with open-source alternatives. The project is designed for users who want an Android-based system without proprietary dependencies. Replicant supports a limited number of older smartphones and tablets, as modern devices rely heavily on proprietary components.

The project started in 2010 and is supported by the Free Software Foundation (FSF). Development is ongoing, with efforts to improve device compatibility and replace remaining proprietary elements. The project is community-driven, with open development and public contributions.

Key Highlights:

• AOSP-based operating system with only free software
• Replaces proprietary drivers and firmware with open-source alternatives
• Supported by the Free Software Foundation (FSF)
• Limited to older devices due to proprietary hardware dependencies
• Community-driven development since 2010

Services:

• Development of a fully open-source AOSP-based OS
• Removal of proprietary software from Android
• Support for select devices with open-source components
• Community collaboration and documentation
• Ongoing development to improve compatibility

Contact Information:

• Website: www.replicant.us
• Email: contact@replicant.us

10. Innominds

Innominds is a digital transformation and product engineering company headquartered in San Jose, California. They specialize in integrating Android into original equipment manufacturer (OEM) devices, customizing various levels to match each customer’s unique brand identity. Their expertise spans devices and embedded engineering, software applications, product engineering, cloud solutions, analytics, DevOps, data management, security, and quality engineering. 

The company offers specialized end-to-end services for dedicated devices to clients worldwide. Their skilled engineers deliver complete customization for Android systems, including Android Open Source Project (AOSP) customization for custom devices, system integration at the Hardware Abstraction Layer (HAL), custom launcher and system apps, and carrier applications such as visual voicemail and dialer customization. 

Key Highlights:

• Headquartered in San Jose, California
• Specializes in AOSP customization and carrier applications
• Offers end-to-end services for dedicated devices
• Expertise in devices and embedded engineering
• Provides system integration at the HAL layer

Services:

• AOSP customization for custom devices
• Carrier applications development
• System integration at HAL layer
• Custom launcher and system apps development
• Visual voicemail and dialer customization

Contact Information:

• Website: www.innominds.com
• Email: marketing@innominds.com
• LinkedIn: www.linkedin.com/company/innominds
• Facebook: www.facebook.com/Innominds
• Instagram: www.instagram.com/innominds_software
• Twitter: www.x.com/innominds
• Address: 99 Almaden Boulevard, Suite 710, San Jose, CA 95113
• Phone Number: 408-434-6463

11. Google Open Source Programs Office (OSPO)

Google Open Source Programs Office (OSPO) was created in 2004 to manage Google’s involvement in open-source projects. It oversees the Android Open Source Project (AOSP) and other Google-supported open-source initiatives. The office ensures compliance with open-source licenses, maintains Google’s released projects, and contributes to external open-source communities. OSPO also runs Google Summer of Code and Google Season of Docs, providing funding and mentorship for developers and writers working on open-source projects.

The office works on open-source security, software maintenance, and community contributions. It collaborates with organizations like the Open Source Security Foundation (OpenSSF) to improve software security. OSPO supports thousands of open-source projects across various fields, including cloud computing, artificial intelligence, and mobile development. It plays a role in keeping AOSP available for developers and device manufacturers while ensuring updates and security improvements are made to open-source software.

Key Highlights:

• Founded in 2004 to manage Google’s open-source projects
• Oversees the Android Open Source Project (AOSP)
• Runs Google Summer of Code and Google Season of Docs
• Works on open-source security with OpenSSF
• Supports software compliance and project maintenance

Services:

• Management of AOSP contributions
• Hosting and maintenance of open-source projects
• Mentorship programs for developers and technical writers
• Open-source security and software compliance
• Collaboration with external open-source organizations

Contact Information:

• Website: www.opensource.google
• Twitter: www.x.com/GoogleOSS

Conclusion

AOSP companies play a crucial role in expanding the possibilities of Android beyond its standard form. By modifying and building upon the open-source foundation, they create custom operating systems, privacy-focused alternatives, and specialized enterprise solutions. Their work allows for greater flexibility, improved security, and tailored user experiences that go beyond what stock Android offers.

Whether it’s for personal customization, business applications, or embedded systems, AOSP-based solutions continue to shape how Android is used across different industries. These companies ensure that Android remains an adaptable and open platform, giving users and organizations more control over their devices and data. As technology evolves, the contributions of AOSP companies will continue to influence the future of mobile computing, connected devices, and digital security.