Announcing the OpenCorporates Trust – a new entity that guarantees the OpenCorporates mission to open up company data for the public good. Read more on our blog.
The Open Database Of The Corporate World


Open Data is transforming the way academics source data for research. Previously data was shielded from researchers and locked away in data centers and commercial repositories. OpenCorporates is challenging this head on to create richer data sets by combining crowdsourced and publicly accessible data. We also show full provenance for every piece of data we have.

OpenCorporates has created special tools to help you search, stream, download and map findings for your research.


OpenCorporates is one of the world’s largest open databases. We have data on over 60 million companies around the world ranging from annual accounts to shareholders, financial licences and company directors. The information we have depends on whether the country publishes open data or not and whether they make it easy to extract it.

Where open data is becoming an established practice, such as in the UK and New Zealand, we have exceptionally rich company data which includes Shareholders, Directors and Filings. On the other hand, this information is not available for registers such as Bermuda, and some registers, such as Belize, make a selling point of not being online or open. Explore the website to find interesting patterns in data or trends, and use the filters to select companies with, for example, trademarks, subsidiary data or licensing data.


Our powerful API lets you do complex searches and filtering and get at the data underlying the OpenCorporates website. You can request an API key under Share-Alike licence here. You can read more about setting this up in our blog post.
Data Dumps
We can generate these on request. Get in touch with us at
Google Refine Reconciliation
is a great way to match companies in your data set. Here is a video tutorial and explanation you might find useful.
is a user-friendly view on the Legal Entity Identifier System (GLEIS) addressing the problems of corporate identity. You can explore the beta version here. Again, we are happy to work with academic researchers to reuse this important dataset.
Open Corporate Network Data
enables you to create interactive diagrams mapping corporate hierarchies. Here is an example of Morgan Stanley’s corporate network.
is a new project to make Government Gazettes available in a standardised format. This critical dataset includes important information on company lifecycle events, and KYC-related data too.
Open Company Data Index
is an interactive platform showing the ranking of countries in how publicly accessible company registration is around the world. You can discover the degree of openness of company registrars here. All the underlying data is available under an open licence.


There are quite a few countries you're missing

We've grown from 3 territories and a few million companies to over 125 jurisdictions and 135 million companies, and are working with the open data community to add more each week.

Why don't you have Delaware companies

Delaware is an important jurisdiction, favoured by many tech and listed companies. However, it is also one of the most opaque, and considered by some to be a secrecy jurisdiction on a par with the traditional offshore tax havens. Because they don't make the register available as data either as open data or even as a paid-for product, getting data about Delaware companies is difficult. This means that information about Delaware companies is poor, and should be treated with wariness at best.

In fact we do have over 700,000 Delaware entities, which is higher than many proprietary business information companies, but as this is a minority of the 3 million past and current Delaware entities we don't list this as one of the jurisdictions we cover. This data has been obtained by 'scraping' the Delaware register very gently, and in fact we believe the only way to have a complete dataset of Delaware is using aggressive scraping with tools such as Tor, or getting it from someone who has done this, and OpenCorporates does not use such tools on principle.

How do I know the data is true and not misleading?

We do not claim our data is free from errors: sometimes a company makes a mistake in its filing, and sometimes our automatic data importers have bugs. However, what makes us unique is that we aim to show a full provenance for every piece of data.

How often is it updated?

How often the data is updated depends on the source and therefore can vary from every day to every few months. You can see when a particular datum was last updated both on the web page for that data, and from the data available from the API.

How do I download data?

On the data entry page, there is an option to download data as JSON, XML and RDF. For options for streaming or downloading large quantities, see the answer below.

Do I need to pay for data dumps or APIs?

These premium features have different pricing models. However, we are very keen on working with educational and research institutions to offer this for free so they can use our data for interesting analysis. Get in touch with us at

I think there are errors in matching the companies

It's possible. We use a number of algorithms to match companies. If governments made more data openly available, or kept a record of the company numbers of the companies they do business with, it would be a lot easier. It would help too if companies were forced to put the company number on their website (in the UK they're supposed to but as often as not they don't). Email us and we'll fix it.

Is there something we haven’t covered here? Submit your question.

Video Tutorials

Coming Soon

We would love to hear from you! Get in touch now.