Open Supply Hub: Mapping Millions of Factories Across Global Supply Chains

Most multinational corporations cannot tell you exactly where their products are made. A pair of running shoes might pass through factories in Vietnam, Indonesia, and China before reaching a store shelf, yet the brand selling it often loses visibility after its direct supplier. The International Labour Organization estimates that 17.3 million people are trapped in forced labor in the private economy worldwide. A growing web of due diligence legislation in Europe, the UK, and the United States is now making that ignorance something companies can be fined for. Open Supply Hub, a U.S.-registered nonprofit, is attempting to close the gap by building the world’s largest open-access map of global production facilities.

How the Rana Plaza Disaster Led to Open Supply Hub

The project started with a catastrophe. On April 24, 2013, the eight-story Rana Plaza building in Savar, Bangladesh, collapsed and killed 1,134 garment workers. The disaster revealed that several of the world’s largest fashion retailers could not confidently identify the factories stitching their products. Rana Plaza became a turning point for supply chain transparency, and the pressure it generated eventually produced a concrete response.

Following 18 months of consultation across brands, trade unions, factory groups, and NGOs, the Open Apparel Registry went live in March 2019 with roughly 8,000 facilities contributed by Levi Strauss, Adidas, Hugo Boss, and others. Azavea, a Philadelphia-based geospatial technology firm and certified B Corporation, built the software. The C&A Foundation (now Laudes Foundation) provided initial funding. By October 2022, the registry had mapped more than 90,000 facilities across over 130 countries, with data from 540 contributing organizations. That November, it rebranded as Open Supply Hub and expanded into electronics, automotive, consumer packaged goods, beauty, food and beverage, furniture, and sporting goods. CEO Natalie Grillon later said the expansion happened 18 months ahead of the projected strategic timeline.

What Happens When a Brand Uploads Its Supplier List

Visit the site and you will find an interactive global map studded with production locations spanning more than 100 countries. Any organization can create a free account, upload a supplier list, and search or download what others have contributed. The platform’s matching algorithm then does the unglamorous but critical work: cleaning messy data, standardizing inconsistent address formats, deduplicating entries, and assigning each verified facility a unique OS Hub ID. Grillon has described how brands routinely upload supplier lists only for the algorithm to flag problems, including addresses that geocode to the middle of the ocean. “Supply chain data is notoriously opaque, siloed and inaccessible, which has historically benefitted very few,” she has said. “Opening up this data is the solution.”

The universal ID system is the linchpin. For years, brands published supplier lists in incompatible formats on their own websites. Auditors ran separate databases. Multi-stakeholder initiatives tracked overlapping but siloed lists. Open Supply Hub collapses that fragmentation into a single registry. Everything is published under a Creative Commons license, and the OS Hub IDs enable interoperability across corporate compliance tools, audit platforms, and reporting frameworks that previously could not talk to each other.

Who Uses Open Supply Hub Today?

The platform now counts more than 1,400 contributing organizations and close to 1 million mapped production locations. Users range from Fortune 500 brands to grassroots labor rights groups, trade unions, environmental NGOs, and government agencies.

Growth accelerated sharply in late 2024 when the nonprofit announced partnerships with four major multi-stakeholder initiatives: Cascale, the Ethical Trading Initiative, the Ethical Supply Chain Program, and the Ethical Tea Partnership. Those agreements funneled supplier data from more than 400 companies onto the platform, joining over a dozen MSIs already contributing, including Fair Wear Foundation and the Apparel Impact Institute.

Some of the most telling use cases come from organizations working closest to factory floors. MUDEM, a grievance mechanism serving textile and apparel workers in Turkey, relies on the platform to cross-reference factory names against brand affiliations when processing worker complaints. Without it, verifying which multinational is connected to which facility in a city like Istanbul or Gaziantep would mean weeks of manual research. The British government’s official guidance on supply chain transparency under the Modern Slavery Act explicitly cites the platform as a data-sharing resource.

Why Due Diligence Legislation Is Driving Demand for Supply Chain Data

The regulatory environment has shifted from voluntary disclosure to mandatory compliance, and that shift is the single biggest growth driver for Open Supply Hub. The EU’s Corporate Sustainability Due Diligence Directive, adopted in June 2024 and subsequently amended to ease implementation timelines, will require large companies to conduct supply chain due diligence, with the first obligations now set to apply from July 2029 following delays agreed in 2025. Non-compliance carries fines of up to 3% of global net turnover. Germany’s Supply Chain Due Diligence Act is already active, with penalties reaching 2% of annual revenue. The EU’s Forced Labour Regulation, which entered into force in December 2024, goes further: a single product flagged under its provisions can be pulled from shelves across all 27 member states and blocked at the border.

The pressure is not limited to Europe. In the United States, customs authorities have detained more than $3.5 billion worth of goods under the Uyghur Forced Labor Prevention Act since its enforcement began in 2022, and a proposed Corporate Sustainability Due Diligence Act introduced in July 2025 would mandate annual public disclosures from companies with revenues exceeding $1 billion.

Every one of these laws shares a prerequisite: companies must first know where their products are made. That turns supply chain mapping from an aspirational exercise into a compliance function, and it explains why contributor numbers on the platform have climbed so steeply.

How the Nonprofit Funds Its Open-Data Mission

The organization operates as a 501(c)(3) nonprofit in the United States, governed by a multi-stakeholder board representing brands, civil society, factory groups, and the open-data community. Laudes Foundation has been a strategic funder since 2017, providing both capital and organizational development support through its Nonprofit Builder program. Humanity United backed early research and reporting.

The commercial side runs on a freemium model. The core database, including search, upload, and download, is free. Revenue comes from premium features: an embeddable map that Amazon, Columbia Sportswear, and Levi’s pay to display supplier networks on their own websites, along with API access and analytics tools. The structure is designed to keep the public good open while generating sustaining income from the companies extracting the most operational value.

What Challenges Does Open Supply Hub Still Face?

The platform’s central friction has not gone away. Many companies still treat supplier lists as proprietary intelligence. The fear of reputational exposure persists, even as legislation makes transparency non-optional. Coverage also tilts heavily toward Tier 1 factories. The deeper layers of supply chains, where raw materials are mined, harvested, and processed, remain largely dark, and those are the tiers where forced labor concentrates most severely.

Data quality is a second constraint. The database reflects what users upload, and not all contributions are equally reliable. The organization has begun piloting AI-driven identification tools and satellite imagery to verify production sites independently, a step toward reducing dependence on voluntary disclosure. Its October 2025 report, “Beyond Transparency,” examined how digital supply chain tools can be made safer for trade unions and civil society groups in countries where sharing data carries personal risk.

Whether Open Supply Hub can push into those opaque lower tiers, hold the trust of stakeholders with competing interests, and build commercial revenue strong enough to outgrow philanthropic dependence will determine whether the project scales or stalls. For the 100 million-plus workers inside these facilities, the question is not abstract. It is whether the system that profits from their labor will finally be required to see them.