Entylink vs Companies House API for production UK registry workflows
Compare Entylink with the official Companies House API when deciding between the raw source and a self-serve, developer-first product layer for UK company search, verification, and monitoring.
Compare the workflow fit, not just the logo
Choose Entylink when you want structured endpoints, self-serve onboarding, clearer commercial packaging, and webhook-based monitoring on top of UK registry data.
Choose the Companies House API directly when your team explicitly wants the raw official interface and is comfortable owning the integration and monitoring burden internally.
This is a workflow-fit comparison, not a source-of-truth comparison. Companies House remains the underlying source. The real decision is how much infrastructure and product friction you want to own yourself.
Public checks used to keep this page honest
Reviewed against public vendor pages on 2026-04-23.
| Criterion | Entylink | Companies House API |
|---|---|---|
| Source model | Productized layer built on Companies House-backed registry workflows | The official raw source interface |
| Developer onboarding | Self-serve account, pricing page, docs, and API-first marketing surface | Direct official integration path with the raw developer surface |
| Search and entity traversal | Search, company, officers, PSCs, filings, and monitoring packaged as one workflow | You own how search, entity traversal, and downstream flow composition work in your app |
| Monitoring | Webhook workflow is part of the product category | You need to own change detection and operational delivery strategy |
| Commercial fit | Closer fit for teams that want a product they can adopt immediately | Closer fit for teams intentionally building and maintaining the stack themselves |
Where the decision usually gets made
Translate the buying decision into a real workflow
1. Search company with GET /v1/search?q=revolut 2. Retrieve company with GET /v1/company/08804411 3. Expand to officers, PSCs, and filings 4. Create webhooks for approved companies
Questions worth answering before procurement
Do we want to own the monitoring and change-delivery layer ourselves?
Are we trying to move fast with a self-serve API, or deliberately build on the raw official interface?
Do compliance and onboarding teams need a workflow-ready API rather than a low-level integration project?
Questions that help the buyer decide
Is Entylink replacing Companies House as the source?
No. Companies House remains the source of truth. Entylink sits above that source as a developer-first product layer for production workflows.
When is the official API enough on its own?
When your team is happy owning the integration complexity and does not need a more productized self-serve workflow around search, traversal, and monitoring.
Why does this page matter commercially?
Because this is one of the clearest build-versus-buy decisions in the category, and the searcher is already close to implementation and procurement.