OCCRP’s investigative data platform, Aleph, has always been more than just code. Born out of OCCRP’s newsroom, it’s grown into a crucial tool for investigative journalists, civic tech developers, and anti-corruption allies worldwide.
To better meet the evolving needs of investigators everywhere, today OCCRP is excited to reveal that we have been rebuilding Aleph from the ground up. This next-generation version is a complete reimagining of the platform.
Set to launch in October 2025, Aleph Pro will deliver a faster, smarter, and more flexible platform, combining a modern technical foundation with user-centered design and major performance gains.
Created by OCCRP nearly 10 years ago, Aleph is a powerful tool that helps 24,000+ users track assets, uncover corporate ownership, and analyze financial transactions using government records, leaked archives, and open data. OCCRP’s Aleph instance contains more than 4.5 billion records and enables the OCCRP network to collaborate on vast data investigations.
“Aleph is more than a platform — it’s critical infrastructure for investigative reporting,” said OCCRP Chief Product Officer Mark Nightingale. “Its open-source roots have fueled collaborations across borders and organizations — and this next level of innovation will foster even more cooperation and impact.”
“Aleph Pro is part of a much bigger vision at OCCRP: a full suite of investigative tools that will empower users to identify wrongdoing and assess risk, leveraging the latest developments in data-analysis and AI,” said OCCRP Aleph Lead Ezana Ceman. “The new platform will enable journalists, activists, and investigators to find more leads and better serve the public interest.”
The new Aleph Pro will feature:
A complete platform rewrite with improved architecture and modern data stack
Significant performance upgrades and lower infrastructure costs
A fully rebuilt ingest pipeline with support for more document types and multimedia
A new interface, optimized for search, speed, and usability
Automated risk scoring and flagging of entities and networks via integration with existing tools and new in-house developments to come
A modular design ready for future extensions and custom workflows
Support for labeling the confidence of connections, enabling knowledge graph generation
Enhanced data models for better linking, filtering, and insights
Aleph is currently available to download as open-source software, and today more than 60 organizations around the world are running their own instances. With the launch of Aleph Pro, OCCRP is taking this one step further: we’ll begin offering hosted instances to help partners focus on what matters most — their investigations.
We take our commitment to the investigative community seriously, and we will guarantee that nonprofit journalism organizations will continue to be able to use Aleph for free — forever. We’ll also support them in their migration to the new platform.
Frequently Asked Questions:
Who can access Aleph Pro?
Anyone can access the publicly available data contained in Aleph, such as government records and open databases. Journalists, researchers, and activists working in the public interest can apply for broader access at no charge by filling out this form. This will not change with Aleph Pro.
What languages is Aleph available in?
The Aleph interface is available in six languages: English, Spanish, Russian, German, Arabic, and French.
Will Aleph Pro be free of charge?
The new Aleph will always remain free for nonprofit journalists, and OCCRP is strongly committed to making it available at or below cost for other public interest groups. The funding landscape for public-interest journalism has become significantly more challenging, and OCCRP will experiment with commercial licensing of the new platform for businesses that make money from their investigations.
Will the next generation Aleph be open-source?
No, Aleph Pro will be available under an open license which will guarantee that non-profit journalists will be able to benefit from the new platform and all new features for free forever. OCCRP is committed to providing Aleph Pro at or below-cost to other public interest groups.
How can I get updates on the new version of Aleph and how will I know when it’s live?
Join our Discourse community to receive updates and stay connected with the Aleph team at OCCRP.
The Data and Research Center (DARC) recently launched a version of Aleph that is available to journalists. What is the difference between their version and OCCRP's?
In consultation with OCCRP, DARC has spun off (‘forked’) its own version of Aleph, now called OpenAleph, based on our code. OpenAleph will remain open-source and will continue to be supported and developed. Both versions reflect Aleph’s collaborative legacy, and our shared commitment to building tools that serve the public good.