LinkedIn dominates B2B prospecting tooling, Sales Navigator, Apollo, Cognism, Lusha all build on top of it. But for UK-specific work, Companies House has a quieter, deeper data set. This post compares the two head-to-head on the dimensions that actually matter: coverage, freshness, contact data, compliance, and price.
Coverage
LinkedIn: ~28 million UK profiles total, but only a fraction are active business decision-makers. Roughly 5–7 million UK profiles are tagged as employed at a UK company with the relevant seniority for B2B outreach.
Companies House: ~5 million active UK ltd companies, plus an additional ~10 million dissolved/historical filings. Every one is verifiable, dated, and linkable. Director records cover ~12 million UK individuals (current + historical officers).
Verdict: Companies House for company breadth; LinkedIn for individual reach. A small UK ltd often has 0–1 LinkedIn profiles but always has a Companies House filing.
Freshness
LinkedIn: Self-updated by users. Job changes are typically reflected within 1–4 weeks of the change, but some profiles drift years behind reality.
Companies House: Statutory filings. New incorporations appear on the register within 24 hours. Director changes (form AP01 / TM01) within 14 days legally; the average is closer to 2–5 days.
Verdict: Companies House wins on company-level freshness (incorporations, dissolutions, directorship changes). LinkedIn wins on individual job changes for already-employed people.
Contact data
This is where the two diverge most dramatically.
LinkedIn: Direct messaging requires Sales Navigator (~£60/seat/month) or InMail credits. No direct email or phone exposed by LinkedIn itself; tools that "scrape" emails from LinkedIn typically use the manufactured-email pattern (see Verify a UK director's email) and have high bounce rates.
Companies House: No emails published directly. But Companies House gives you the registered office address, which ~50% of the time matches the trading address, and the director name. Combine with the company's published website and you can scrape verified emails (this is what Leadistry does).
Verdict: Neither gives you emails directly. Companies House + a verified-scraping pipeline beats LinkedIn + email-guessing for UK director outreach. But LinkedIn is unbeatable for sending platform-native messages (InMail / connection requests).
Compliance
LinkedIn: ToS prohibits automated scraping. Tools that scrape LinkedIn at scale (Apollo, Cognism, Lusha) operate in a grey area, they typically use a network of cookies and accounts, and LinkedIn periodically sues. From a UK GDPR/PECR perspective, scraped LinkedIn data is also questionable: profiles include personal information that wasn't intended for commercial harvesting.
Companies House: Statutorily public data. The Companies House register exists *specifically* for public re-use. Re-publishing it is explicitly licensed (OGL v3.0). Directors who object can request their personal information be hidden via the Companies House regulator process, and that suppression is published, so re-publishers can honour it.
Verdict: Companies House wins on compliance for UK-only work. LinkedIn data carries litigation and GDPR risk that Companies House doesn't.
Price
LinkedIn-based tooling: Apollo from $99/month, Cognism from £15k+/year (no public price), Lusha from £69/seat/month.
Companies House direct: Free at source. The official API is also free (rate-limited to 600 requests per 5 minutes per key). Building your own pipeline is feasible, about 2–4 weeks of dev work to handle the bulk download + per-officer enrichment.
Companies House + enrichment SaaS (Leadistry, etc): Per-lead pricing typically £0–3 per delivered contact. For 500 leads/month, this is ~£150, a fraction of Cognism's seat pricing.
Verdict: Companies House is structurally cheaper for UK-only work. LinkedIn-based tooling makes sense for global reach but is overkill for UK.
Use case fit
Use LinkedIn (Sales Nav / Apollo / Cognism) when:
- You need global, not UK-only
- You're targeting individuals across multiple companies (account-based marketing)
- Your outreach is platform-native (InMail / connection requests)
- Your prospect's job title matters more than their company
Use Companies House (direct or via Leadistry) when:
- You're targeting UK-only
- You want to find newly-incorporated companies (LinkedIn lags weeks; CH lags hours)
- Your outreach is email + phone, not LinkedIn-native
- Compliance posture matters (regulated industries, high-trust outreach)
- Your target is the company first, then the contact within it
What about both?
Most successful UK B2B outreach uses Companies House for company discovery + targeting, then LinkedIn for individual research before outreach. The CH data tells you which companies to approach; the LinkedIn profile tells you who specifically to address and what they've been writing about lately.
Leadistry surfaces the LinkedIn URL exactly for this, your enrichment includes the director's personal LinkedIn URL where it's publicly discoverable, so you can do the pre-outreach research efficiently.
Bottom line
For UK-only B2B prospecting, Companies House is structurally better than LinkedIn-based tooling: deeper coverage of small UK ltds, faster freshness on incorporations + director changes, dramatically cheaper, and far stronger compliance posture.
The catch: Companies House gives you company data, not contact data. To turn it into a usable prospecting feed you need an enrichment layer that scrapes verified emails and phones from the corresponding company websites, without manufacturing addresses.
That's exactly what Leadistry does. 6 trial leads free, no card required.
Leadistry maintains a live database of 5 million UK companies, enriched from the Companies House register with verified websites, business emails and social profiles. We write about the craft of finding and reaching the right businesses, first.
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