Sources & Data Coverage

Know where the information comes from.

WinIntel uses official and public procurement information, relevant buyer/public-body material and supplier-authorised context. Coverage depends on what is published, accessible and relevant to the opportunity.

Reviewed13 September 2026

Original publishers remain authoritative.

AuthorityOriginal source first

Buyer and official publications remain authoritative.

CoverageOpportunity-specific

No complete, continuous or real-time coverage claim.

FreshnessChanges stay visible

Publication, amendment and retrieval context matter.

ResearchNot tender evidence

Professional research can shape design, not a tender fact.

Keep the source, supplier context and interpretation distinct.

01Published source

Official or buyer-published information.

02Supplier-provided

Context the supplier is authorised to provide.

03WinIntel interpretation

Human-reviewed context based on available information.

04Unresolved

What the available evidence cannot establish.

If a material point has no supportable source trail or supplier-authorised context, WinIntel does not present it as a verified public fact.

What each source can establish, and what it cannot.

The exact source set varies by opportunity. A source family appearing here does not mean it is used for every review.

Source familyWhat it can establishWhat it cannot establishAuthority / freshness
Find a Tender / central digital platformCan establishPublished procurement notices, buyer identity, dates, stated procurement information and linked lifecycle notices where applicable.Cannot establishYour full current staffing, evidence, commitments, internal constraints or supplier assumptions.Authority / freshnessOriginal notice or buyer publication remains authoritative. Applicability varies by procedure and jurisdiction.
Buyer tender documentsCan establishSpecification, timetable, conditions, award information and other buyer-published requirements.Cannot establishWhether your organisation currently has the people, evidence, resources or readiness to meet them.Authority / freshnessUse the latest buyer-issued version and note amendments or clarifications.
Clarifications / amendmentsCan establishBuyer-published additional information or changes to procurement documents.Cannot establishYour internal impact unless supplier context is provided.Authority / freshnessFreshness matters. Material assumptions may need to be revisited.
Award / contract / lifecycle recordsCan establishPublicly published awards, contract details and later lifecycle events where applicable and confidently linked.Cannot establishUnpublished events, private performance, future outcomes or causal conclusions.Authority / freshnessAbsence of a record is not proof that an event did not occur.
Contracts Finder / other official portalsCan establishPublic procurement records available through the relevant official service.Cannot establishComplete UK-wide coverage of every procurement or supplier-specific operating context.Authority / freshnessUse only where applicable to the procurement and source regime.
Devolved procurement sourcesCan establishPublic procurement information for relevant devolved arrangements.Cannot establishA single uniform UK legal or procurement regime.Authority / freshnessJurisdiction and transitional rules must be respected.
Companies HouseCan establishOrganisation identity and filed corporate information where relevant.Cannot establishCreditworthiness, payment prediction, bid suitability or operational capability.Authority / freshnessIdentity and context only unless another specific public fact is independently relevant.
Sector-specific official bodies / regulatorsCan establishAuthoritative sector context where relevant, such as workforce or regulatory information.Cannot establishSupplier-specific readiness or a procurement or legal conclusion.Authority / freshnessUse the current primary source and label geographic scope.
Supplier-provided informationCan establishCurrent operating context the supplier chooses and is authorised to provide.Cannot establishIndependent public-source verification unless separately stated.Authority / freshnessKeep visibly distinct from published-source facts.

Find a Tender can show more than a tender notice.

For procurements within its current regime, Find a Tender publishes official notices across different stages of procurement and contract management. Which notices apply depends on the procedure, threshold, jurisdiction and transitional position.

WinIntel does not treat every procurement as having the same notice sequence or the same post-award publication history.

Find a Tender notice guidance
Selected lifecycle contextNot a complete notice sequence
PlanningPipeline / early engagement / planned procurement where applicable
TenderPublished opportunity and associated documents
AwardAward decision information where published
ContractSigned-contract and later lifecycle information where applicable
Official linked records can add context, but publication duties and available history vary.

The latest buyer-issued material matters.

A tender notice can point to the opportunity. The specification, conditions, award criteria, timetable and later clarifications can materially change what a supplier needs to understand.

01

Associated tender documents

Buyer-issued specifications, conditions, evaluation material and other procurement documents can establish stated requirements and process information.

LimitThey cannot establish your organisation's current operating position.
02

Clarifications and amendments

Buyer-published changes may alter a requirement, timetable, condition or assumption.

FreshnessEarlier analytical points may need to be revisited when the source changes.

Public contract history is useful only when it is supportable.

Where confidently linked and publicly available, later records may add selected context from awards, contract details, performance, change, termination or later procurements.

Published eventUse the public fact

Keep the original record and relevant date visible.

Confident linkConnect only where supportable

Do not imply two records are related merely because names look similar.

No record foundDo not infer non-occurrence

Absence of a public record is not proof that no event occurred.

ApplicabilityPublication duties vary

Some later notices do not apply uniformly across procedures or contract types.

Some questions need a different source family.

WinIntel may use other official context where it is relevant, but each source keeps its own evidential boundary.

Companies HouseIdentity and filed company information

Useful for organisation identity or a specific filed fact. Not a credit score, payment predictor or operational-capability verdict.

Sector-specific official bodiesExternal operating or regulatory context

Useful where current, primary and geographically applicable. Not supplier-specific readiness or legal advice.

Supplier-providedYour current operating context

Information your organisation is authorised to provide can answer questions the public record cannot. It stays visibly separate from published-source facts.

Research can change the product. It cannot prove a tender fact.

Structured professional research may shape WinIntel's design, examples and service priorities. It is never treated as evidence about a specific procurement, buyer, supplier or live opportunity.

See Insights & Guides

A source is not static just because it was published.

Dates, later versions, amendments and source-specific rights can change how a public fact should be read or reused.

01Identify the source

Keep the original publisher or buyer material visible where material.

02Check the relevant date

Publication, retrieval, amendment or review date may affect context.

03Keep conflicts visible

If supportable public sources disagree, the conflict stays unresolved rather than being silently normalised.

04Respect source rights

Use OGL or source-specific attribution only where it actually applies.

Open Government Licence v3.0Attribution applies where the source is licensed that way.

Contains public sector information licensed under the Open Government Licence v3.0, where applicable. Where a source specifies its own attribution, use that attribution. OGL does not automatically cover personal data, third-party rights, logos, crests or material the provider is not authorised to license.

Open Government Licence v3.0

Source context can change.

If a public fact appears wrong, has changed or cannot be verified, WinIntel keeps the limitation visible and provides a route to report the issue.

Report a source correction