How the three compare on data

Every row below is a data point or function a user can actually rely on when checking a company. We list what each service provides, and what it does not.

How to read this grid: tick = included. amber dash = partial or paid tier only. cross = not offered. Details under each mark come from the providers' own published material and our own audits, with dates at the foot of the page.

Data function Black Flag Alertfree for everyone Company Watchpaid plans RedFlag Alertpaid subscription
Risk scoring
Headline risk scoreThe number you act onYesR-Score 0 to 100, plus a Risk Rating of 1 to 10 with plain band labels.YesH-Score 0 to 100, plus a colour-coded risk rating.YesCategories, not numbers: Gold, Silver, Bronze, then one to three red flags.
Score breakdownSee why the score is what it isYesThree components with published weights: Profit 42%, Assets 38%, Funding 20%. Every ratio explained in plain English.PartialH-Score factors shown, but the formula is proprietary.NoSingle composite score. The breakdown field exists but is locked behind premium tiers.
Event overrideA winding-up petition beats healthy accountsYesAn active winding-up petition forces Risk Rating 10, whatever the accounts say.NoH-Score is purely financial. Petition data sits in separate Gold-tier feeds.YesDetrimental events force the three-red-flag rating.
5-year score trendYesCharted per company with a warning threshold.PartialHistorical H-Score available in reports.NoCurrent rating only.
Recommended credit limitYesFigure plus a plain-English credit recommendation.YesCredit and contract limits, from Bronze tier.YesCredit limit and a separate credit score.
Company financials
Filed accounts depth5 yearsTurnover, operating profit, PBT, net assets and staff per year, direct from Companies House iXBRL.YesFull financial statement explorer as a paid add-on.PartialRatios surfaced, not the full filed figures.
Ratio breadth9 ratios × 5 yearsROCE, RONW, margins, leverage, interest cover, current ratio, cash coverage, each with an explanation.YesRatio analytics around the H-Score.27 ratiosWide set, including per-employee measures.
Sector benchmarkingYesCash vs sector peers: percentile against thousands of same-sector companies.YesIndustry percentile positioning.No
Data quality indicatorYesPer company: how many metrics were usable, scored out of 100. We show our confidence, not just the result.NoNo
Court and insolvency events
County Court JudgementsDailyChecked daily from HMCTS records, shown on the company page.NoNot listed in current plans.Yes
Winding-up petitionsDailyFrom The Gazette, checked daily, overrides the score.Gold tierIncludes unadvertised petitions and applications.Yes
Strike-off and Gazette noticesYesFirst Gazette notices and proposals to strike off, dated, in the credit events table.NoNot listed in current plans.YesTracked as detrimental events.
Directors, ownership and identity
Phoenix director detectionYesNames directors who previously served on companies that later failed, with the companies listed and verifiable.Gold tierEnhanced directorships data, Gold only.No
Ownership structureYesPSC data with a visual ownership map and control breakdown.NoNo
VAT numberVerifiedChecked against HMRC, with the verification date shown.YesFrom Bronze tier.No
Registered charges and mortgagesYesYesYes
Monitoring and workflow
Email alerts on risk changesFreeWith a free account.YesFrom Bronze tier.YesMonitoring is their core product.
PDF reportsFreeYesSnapshot reports plus Excel export.Yes
Natural-language company screeningYesAsk in plain English, get matching companies across the whole register.NoNo
Data access and integration
APIFree trialSelf-serve, no card. 100 calls and 20 contact lookups per rolling 24 hours.YesAPI, scoring gateway and BigQuery access.YesGraphQL API with paid access.
AI agent integration (MCP)YesWorks inside Claude, Cursor and Windsurf.NoNo
Warehouse access (BigQuery)NoYesDirect dataset access for enterprise users.No
Coverage5.1m searchableEvery England and Wales company, around 3.4m scored. Scotland and Northern Ireland not covered.UK-wideCount not published.~3.5m ratedTheir claimed figure.

What you pay

Prices as published or audited on the dates shown at the foot of the page.

Black Flag Alert This is us
£0 to start
  • Company pages, scores, alerts, PDF reports: free, no card, no trial clock
  • Open API trial: free for 14 days, self-serve, no card
  • MCP integration: free
  • Freemium pricing: the core product stays free
Company Watch
£10,000 per year, plus VAT
Bronze · Silver · Gold tiers
  • From £10,000 per year plus VAT for a subscription
  • £95 + VAT per single-company report update if you hold no subscription
  • Best-known data (H-Score) since 1998, enterprise-led
Pricing updated September 2026.
RedFlag Alert
£6,480 per year, plus VAT
  • Subscription-based: from £6,480 per year plus VAT
  • Score breakdown and premium data sit above the entry tier
Pricing updated September 2026.

Sources. Black Flag Alert: live product, August 2026. RedFlag Alert: our own audit of their platform and API, March 2026; their website blocks automated access, so current-page verification was not possible. Company Watch: their public plans page, 18 August 2026. Where a cell says a feature sits in a paid tier, that comes from the provider's own plan list.