Data sources

The public data BidProof uses, what it does with it and the licence each publisher gives. Last reviewed 29 October 2026.

Source
Find a TenderCabinet Office
What BidProof takes
Tender, planning, change and cancellation notices, and contract award notices, from its open data API.
How it is used
Matches opportunities to what each organisation supplies, sets each buyer's selection criteria beside the organisation's evidence, and builds the Market view of contracts coming up for renewal.
How often
Every 30 minutes; past awards are filled in nightly.
Licence
Open Government Licence v3.0Find a Tender states that its notice data is available under the Open Government Licence. Every view built on award data names it as the source.
Source
Public Contracts ScotlandScottish Government
What BidProof takes
Below-threshold Scottish contract notices (its "Website Contract Notice" type), from its open data API.
How it is used
Matches Scottish opportunities that Find a Tender does not carry, for organisations that choose them, and links each to the notice on Public Contracts Scotland.
How often
Every six hours.
Licence
Open Government Licence v3.0Each response from the Public Contracts Scotland API names the Open Government Licence v3.0 as its licence.
Source
Companies House public data APICompanies House
What BidProof takes
An organisation's own company record and filing history; its officers and persons with significant control only where the organisation switches on the connected persons check.
How it is used
Raises alerts on the organisation's own record before a buyer's check does: status, overdue accounts or confirmation statement, and new filings.
How often
Daily.
Licence
Companies House: public task, copyright and Crown copyrightThe register is public by law under the Companies Act 2006. Companies House states that it "imposes no rules or requirements on how the information on the public register is used". Personal data in it is handled as the privacy notice describes.
Source
GOV.UK Content APIGovernment Digital Service
What BidProof takes
The last-updated date of four guidance collections: Procurement Policy Notes, Procurement Act 2023 guidance, the Algorithmic Transparency Recording Standard, and information and guidance for suppliers.
How it is used
Tells the ThinkTribal team when guidance behind the question library changes, so the library is reviewed.
How often
Daily.
Licence
Open Government Licence v3.0GOV.UK states that all content is available under the Open Government Licence v3.0, except where otherwise stated.
Source
UK bank holidaysGovernment Digital Service
What BidProof takes
Bank holidays in England and Wales, Scotland and Northern Ireland.
How it is used
Counts working days for the Procurement Act 2023 standstill period and other deadlines.
How often
Copied in and reviewed before the list runs out.
Licence
Open Government Licence v3.0GOV.UK states that all content is available under the Open Government Licence v3.0, except where otherwise stated.
Source
Government Commercial Agency agreements pipelineGovernment Commercial Agency
What BidProof takes
Upcoming commercial agreements: their names, stages and when tenders open.
How it is used
Shows framework windows opening in the next 180 days on Opportunities.
How often
Weekly.
Licence
Open Government Licence v3.0The Government Commercial Agency states that most content on its website is Crown copyright and published under the Open Government Licence.
Source
The question library's frameworksUK Parliament, Cabinet Office, the Information Commissioner's Office, the National Cyber Security Centre and others
What BidProof takes
The names, versions and links of the laws, policy notes, guidance and standards each question rests on.
How it is used
Ties each question to what a buyer will cite. Questions are in BidProof's own words.
How often
Reviewed when the guidance changes.
Licence
Open Government Licence v3.0legislation.gov.uk, GOV.UK, the ICO and the NCSC publish under the Open Government Licence v3.0. ISO/IEC 27001 and ETSI EN 304 223 are named and linked only; none of their text is reproduced.

Source	What BidProof takes	How it is used	How often	Licence
Find a TenderCabinet Office	Tender, planning, change and cancellation notices, and contract award notices, from its open data API.	Matches opportunities to what each organisation supplies, sets each buyer's selection criteria beside the organisation's evidence, and builds the Market view of contracts coming up for renewal.	Every 30 minutes; past awards are filled in nightly.	Open Government Licence v3.0Find a Tender states that its notice data is available under the Open Government Licence. Every view built on award data names it as the source.
Public Contracts ScotlandScottish Government	Below-threshold Scottish contract notices (its "Website Contract Notice" type), from its open data API.	Matches Scottish opportunities that Find a Tender does not carry, for organisations that choose them, and links each to the notice on Public Contracts Scotland.	Every six hours.	Open Government Licence v3.0Each response from the Public Contracts Scotland API names the Open Government Licence v3.0 as its licence.
Companies House public data APICompanies House	An organisation's own company record and filing history; its officers and persons with significant control only where the organisation switches on the connected persons check.	Raises alerts on the organisation's own record before a buyer's check does: status, overdue accounts or confirmation statement, and new filings.	Daily.	Companies House: public task, copyright and Crown copyrightThe register is public by law under the Companies Act 2006. Companies House states that it "imposes no rules or requirements on how the information on the public register is used". Personal data in it is handled as the privacy notice describes.
GOV.UK Content APIGovernment Digital Service	The last-updated date of four guidance collections: Procurement Policy Notes, Procurement Act 2023 guidance, the Algorithmic Transparency Recording Standard, and information and guidance for suppliers.	Tells the ThinkTribal team when guidance behind the question library changes, so the library is reviewed.	Daily.	Open Government Licence v3.0GOV.UK states that all content is available under the Open Government Licence v3.0, except where otherwise stated.
UK bank holidaysGovernment Digital Service	Bank holidays in England and Wales, Scotland and Northern Ireland.	Counts working days for the Procurement Act 2023 standstill period and other deadlines.	Copied in and reviewed before the list runs out.	Open Government Licence v3.0GOV.UK states that all content is available under the Open Government Licence v3.0, except where otherwise stated.
Government Commercial Agency agreements pipelineGovernment Commercial Agency	Upcoming commercial agreements: their names, stages and when tenders open.	Shows framework windows opening in the next 180 days on Opportunities.	Weekly.	Open Government Licence v3.0The Government Commercial Agency states that most content on its website is Crown copyright and published under the Open Government Licence.
The question library's frameworksUK Parliament, Cabinet Office, the Information Commissioner's Office, the National Cyber Security Centre and others	The names, versions and links of the laws, policy notes, guidance and standards each question rests on.	Ties each question to what a buyer will cite. Questions are in BidProof's own words.	Reviewed when the guidance changes.	Open Government Licence v3.0legislation.gov.uk, GOV.UK, the ICO and the NCSC publish under the Open Government Licence v3.0. ISO/IEC 27001 and ETSI EN 304 223 are named and linked only; none of their text is reproduced.

What is not public data

Benchmarks compare an organisation with others in its sector and size band using only the figures of BidProof customers that choose to share them, as anonymous quartiles, and only where at least five other organisations contribute. No organisation is ever named.

Readiness, pre-checks and match scores are BidProof's own working from an organisation's answers and evidence. They are not published by any public body.

Each source receives nothing about you beyond the request itself. To ask about a source or report a problem with one, write to info@thinktribal.com.