How ENKII compiles UK
procurement data

Every buyer profile + sector page on ENKII aggregates records from the following primary sources. Each source is a public UK Government portal publishing data under the Open Government Licence:

• Find a Tender Service

  All UK public-sector tender + award notices above the Procurement Act 2023 thresholds. OCDS-compliant.

• Contracts Finder

  UK public-sector contract opportunities and awards across all values, including the £10k–£25k below-threshold range that matters to SMEs.

• Sell2Wales

  Welsh public-sector procurement notices.

• Public Contracts Scotland

  Scottish public-sector procurement notices.

• gov.uk department pages

  Buyer organisation metadata: mission, parent department, leadership, contact channels.

• Companies House (existing ENKII integration)

  Supplier company identification, registration, and basic firmographics.

International coverage (SAM.gov for US federal procurement, Tenders Electronic Daily for the EU) is part of the Phase 8 roadmap and not currently active on public buyer pages.

Buyer + sector pages on ENKII are rebuilt daily. Award notices typically appear in our cache within 24 hours of publication on the source portal. Open-tender deadlines are tracked in real time and removed as soon as the source portal marks the tender as closed.

The Updatedtimestamp on each buyer page reflects the most recent successful refresh of that specific buyer's data — not the most recent build of the site. If a refresh fails for a single buyer, that page's timestamp will lag behind the rest of the catalogue.

The headline figures on each buyer page are computed as follows:

Total spend

Sum of award values across all award notices published by the buyer during the reporting period. Excludes open tenders (no award yet) and framework ceiling values (which represent maximum spend, not actual).

Contract awards

Count of distinct award notices. Multi-lot tenders count each lot separately, matching the convention used by Find a Tender.

Unique suppliers

Distinct supplier organisations across all awards, matched on legal entity name + (where available) Companies House registration number.

Average contract value

Mean award value, excluding awards where no value is published. The median is also surfaced where available — the difference between mean and median typically reveals how skewed the distribution is.

Top suppliers

Suppliers ranked by total award value across the reporting period. Ties broken by award count, then alphabetically.

CPV breakdown

Awards grouped by their root CPV category (the first two digits of the 8-digit CPV code). The CPV taxonomy is maintained by the EU and used by all UK procurement portals.

Top-5 supplier share of value

The proportion of total spend captured by the top five suppliers, as a single market-concentration indicator. Above 50% is typically considered concentrated; below 30% is broadly competitive.

Response window stats

Days between tender publication and submission deadline, averaged across the reporting period. Median is published alongside the mean since outliers (very long or very short windows) are common.

Public procurement data is rich but imperfect. Some specific caveats worth flagging:

• Not every award has a published value

  Some buyers publish award notices without contract value, particularly for lower-value or framework-call-off awards. Where value is missing, the contract still counts toward the contract-award count but doesn't contribute to total spend or average.

• Framework ceilings vs actual spend

  Framework agreement notices typically publish a ceiling value (maximum the buyer might spend over the agreement's lifetime). We exclude these from total-spend figures to avoid double-counting against the actual award notices that draw down on the framework.

• Supplier identity matching is best-effort

  When matching supplier names across awards (to count unique suppliers), we use legal-entity name + Companies House registration number where available. Suppliers that publish awards under multiple slightly-different name variants may appear as separate entries.

• CPV categorisation is the buyer's choice

  Buyers assign CPV codes to their tenders. The same procurement could be classified under different CPV codes by different buyers. Our category breakdowns reflect what buyers actually filed, not a normalised re-classification.

• Reporting periods may include partial years

  Where the reporting period doesn't align with a calendar year, the most recent year in the activity timeline may be partial. We mark these clearly on the page where they appear.

All procurement records on ENKII originate from UK Government public sources and are published under the Open Government Licence v3.0. Under OGL v3.0, anyone may copy, publish, distribute, transmit, adapt, and exploit the underlying data, including for commercial purposes, provided the source is acknowledged.

ENKII's acknowledgement appears on every buyer + sector page as part of the "Sources" section. ENKII does not warrant accuracy beyond the source portals' own publication. If you need authoritative-source data for a formal application or legal context, refer directly to the publishing buyer.

Where ENKII adds editorial commentary, market interpretation, or derived analytics on top of the source records, that commentary is © ENKII Ltd and not covered by OGL v3.0.

If a buyer profile contains an inaccurate figure, an out-of-date contact, or a missing supplier, email hello@enkii.io with the URL of the page and a brief description. We aim to verify and correct within five working days, or update the page with a clarifying note if the source data itself is ambiguous.

Refresh cadence, source coverage, and calculation methods evolve over time. This methodology page is the canonical record — material changes will be noted at the top with a date stamp.