Company monitoring, KYB and ownership intelligence

UK company intelligence, grounded in public records.

Resolve a UK legal entity, review KYB evidence and monitor 105 evidence-backed SEIS/EIS portfolios using Companies House, GLEIF and other approved official sources.

Live public-register checks · 3,160 tracked companies · no account required

Portfolio companies3,160Companies House-linked profilesPublic supplier profiles10,1453,548 evidence-rich · as of 2026-08-23Mapped portfolios105Exact company membershipsVerified identifiers294Exact Companies House–LEI links
Analysis library

Start with the question you need to answer.

Company status, filing deadlines, portfolio comparison, legal-entity identity and UK operating context—with the source and observation date kept visible.

Daily

Portfolio health

A current status roll-up across the tracked SEIS/EIS universe, refreshed by the daily Cloudflare pipeline.

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Portfolio

Dissolved companies

A source-linked register of companies marked dissolved in the curated fund snapshot.

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Public money

UK contract suppliers

Companies, buyers and awarded values from the Contracts Finder projection.

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Governance

Upcoming filing deadlines

Official Companies House filing dates for companies in the public-record projection.

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Comparison

SEIS/EIS portfolio comparison

Compare 105 evidence-backed portfolios, find shared companies and separate portfolio overlap from current company status.

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Survival

Portfolio survival by cohort

How long tracked companies stay on the register, and how each fund compares once portfolio vintage is accounted for.

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Cross-data

Company and charity links

Companies that also appear in the Charity Commission register, with source dates and caveats.

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Identity

Legal Entity Identifiers

294 exact Companies House-number links to the global GLEIF legal-entity register.

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UK context

Investment climate

Official inflation, pay, labour, growth and Bank Rate histories.

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Transport

Transport operating context

DfT collision, traffic-flow and NaPTAN coverage for mobility, logistics and fleet diligence.

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For compliance and investment teams

Free checks when you need one. Monitoring when you need a process.

Start with a company name or number. Move to a scoped commercial brief when a team needs repeat checks, an audit trail or a portfolio-wide review.

1 · Search

Resolve the legal entity

Check the Companies House number, current status, filing dates and exact public-data links without creating an account.

Run a free company check →
2 · Review

Build a KYB evidence trail

Use source-dated identity, filing, LEI, public-contract and portfolio evidence. Ownership and officer records stay at the official register rather than being copied into a public people database.

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3 · Monitor

Commission a team brief

Recurring portfolio monitoring and one-off KYB evidence packs are scoped by entity count, refresh frequency and delivery format.

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Source discipline

Live where it can be. Dated where it cannot.

Company status is resolved through the live Companies House proxy. Exact LEI links come from the governed Atlas R2 lake. UK context reports read the newest licensed indicator snapshot while keeping every original period visible.

Live company profiles

Each indexed portfolio company gets a canonical, server-rendered profile with current status, accounts dates and official verification links.

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Daily refresh queue

A scheduled queue rechecks all 3,160 tracked companies, refreshes matched LEI records and archives a daily portfolio summary.

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Transparent provenance

R2 object metadata and D1 import records expose what is present, when it was imported and which licence applies.

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Understand the record

Guides that show their working.

All guides
Tax

SEIS and EIS loss relief

What a company-status signal can tell you, what it cannot, and which HMRC records matter.

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Companies House

Read company statuses

Dissolved, liquidation, administration and strike-off are different legal states.

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Monitoring

Build a portfolio review

A repeatable checklist for company numbers, filings, evidence dates and escalation.

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A 37X Ventures portfolio site

Operated by 37x Limited, a Guernsey Non Cellular Company, company number CMP76157, incorporated 18 July 2025.

Registered office: Les Echelons Court, Les Echelons, St. Peter Port, Guernsey, GY1 1AR.

Full company details