Sourcemark makes AI training choices visible before training.
We help creators, catalogues and representatives put AI training choices and licence routes on record for creative works, so AI teams can check declared status before training or fine-tuning.
Why Sourcemark exists
Creative work is moving through platforms, suppliers, crawlers and datasets at a scale that existing permission and licensing systems were not built to handle.
For creators and catalogues, there is still no consistent way to declare whether work is available by licence or unavailable for AI training in a form AI teams can check. For AI teams, there is no standard place to see whether a creator, catalogue or representative has declared a position before training or fine-tuning.
The result is avoidable uncertainty. Creator choice is often invisible, licence routes are hard to find and questions about permission surface too late, after work may already be inside a training workflow.
Sourcemark moves the permission check earlier, before creative work becomes a training data decision. It gives creators and catalogues a structured way to put AI training choices and licence routes on record, and gives AI teams a clearer way to check, route and document before training or fine-tuning.
What we believe
Creator choice should be visible before training, not disputed after.
When AI training choices are available earlier, both creators and AI teams have a clearer basis for action.
Infrastructure works best when it serves both sides.
Creators and catalogues need a way to declare their position. AI teams need a way to check it. Sourcemark is designed to support both.
Licence routes should stay with the people who choose them.
Sourcemark does not currently licence work on behalf of creators or catalogues. It makes the chosen route visible when work is matched.
Neutrality matters.
Sourcemark is not a campaign, an enforcement body or a replacement for direct licensing relationships. It is infrastructure designed to make declared positions easier to find, check and act on.
We are honest about scope.
Sourcemark records declarations. It does not verify legal ownership, clear rights, enforce declared status or guarantee outcomes.
How Sourcemark fits
Sourcemark sits between the people and organisations publishing or representing creative work and the AI teams checking candidate data before training or fine-tuning.
Creators and catalogues register works with AI training choices, fingerprints and licence routes. AI teams can check candidate datasets against Sourcemark and receive a result they can act on: available by licence, unavailable for AI training, hold for review or no registered signal.
Where Content Credentials or other provenance data are present, Sourcemark can work alongside them. Provenance helps show where a file came from or how it was edited. Sourcemark records the AI training choice and licence route so they can be checked later.
The team

Lyndsey Salah
Co-founder & CEO
More than 25 years in commercial stock photography, image licensing and visual content production. Built global lifestyle collections and worked across rights management at scale. Her recent work on volumetric datasets for generative AI exposed the gap that Sourcemark is built to close.

Nabil Salah
Co-founder & CTO
Bridges design and engineering across 20+ years — from the Electronic Telegraph to e-commerce platforms for luxury brands. Founded London studio Eat Sleep Breathe in 2002. At Sourcemark, he leads the technical infrastructure that makes AI training choices searchable, checkable and actionable.
Advisory board

Matthew Tilley
Financial Strategy
Financial leader with senior roles in €2bn+ European defence and travel businesses. Brings extensive experience across financial modelling, forecasting, and financial control. Specialising in modern revenue models for AI-native and usage-based businesses. Leads financial strategy as Sourcemark scales.

Donia Dacey
Brand & Communications
More than 20 years in creative strategy and brand communications, with senior roles at Publicis Media, Snap Inc, TBWA\Media Arts Lab (Apple), News UK and BBC Worldwide. Leads brand positioning and go-to-market across both creator and AI company audiences.

Christiaan Haig
Talent & Organisational Design
Founder of EddisonFields, a London-based executive search and human capital advisory firm. Deep expertise in C-suite and board-level recruitment across financial services, infrastructure and technology. Leads talent strategy and organisational design as Sourcemark scales.