Break out of API shackles
No more rate limits, build whatever you want with our open data
Freedom to build what you want
Unlimited, unrestricted and free for everyone forever
Forget rate limits, restricted use licensing and everything that holds you back. NUM levels the playing field, giving everyone – giants and independent developers – equal access to data.
The data
23m data points on 4.8m UK companies (and counting)
We've gathered open public data about every company in the UK and provide unlimited, unrestricted, free access for everyone, forever.
Modules
Designed for your use case
Contact information, logo data, registrant and regulatory data – we're just getting started. NUM is a protocol for data storage and retrieval, it can be used for anything and modules can be proposed by anyone.
Module list
- Contacts
- Registrant
- Images
- Custodians
- Register
- Payments
- Public Key
- Intellectual Property
- Terms
- Bugs
Go for it
Fetch company data now
Use the NUM client or company-api to fetch data using NUM:
num-client lookup
Fetch a specific piece of data using our
num-client library.
numexample.com:1 aviva.co.uk:1 barclays.co.uk:3company-api lookup
Fetch all contact and images for a domain in one query using our
company-api library.
numexample.com hsbc.co.uk edfenergy.com
For more information on how NUM works,
see NUM Protocol
Join our developer community
Get direct support, help shape NUM and collaborate on apps