Best UK company data APIs for developers, onboarding, and registry workflows
A shortlist of UK company data APIs by fit. Compare Entylink, the official Companies House API, and broader company-data options based on workflow needs rather than hype.
Compare the workflow fit, not just the logo
Entylink is the stronger fit when you want a self-serve, developer-first UK company registry API that supports verification and monitoring workflows out of the box.
The right alternative depends on whether you want the official raw source, a broader company-data platform, or a workflow that is not primarily API-native.
This page is a shortlist by fit, not a universal ranking. Verify current coverage, API terms, and commercial details directly with each option before buying.
Public checks used to keep this page honest
Reviewed against public vendor pages on 2026-04-23.
| Criterion | Entylink | Alternative fit |
|---|---|---|
| Developer onboarding | Designed for self-serve engineering adoption | Ranges from raw official integration to broader vendor evaluation paths |
| UK registry focus | Tightly focused on UK company search, entity data, and monitoring | May be broader, more raw, or more research-oriented depending on the option |
| Monitoring | Webhook workflow is part of the product category | Varies by option and should be checked directly |
| Workflow fit | Strong fit for compliance, fraud, credit, and onboarding software | Could fit better if your real need is raw-source control or broader company-data scope |
Entylink
Developer-first UK company registry workflows, self-serve onboarding, and ongoing monitoring.
Best when the workflow is specifically UK registry infrastructure inside product logic.
Companies House API
Teams that want the official raw source and are comfortable building the workflow themselves.
Best only if you are intentionally owning the implementation burden.
Endole
Teams that want to evaluate whether a broader company-data or research-oriented path fits better than a focused registry API.
Verify current API and workflow fit directly before assuming it matches a developer-first integration model.
Global Database
Buyers who may need broader company-data breadth or a wider evaluation scope than a UK specialist provides.
Broader category fit is not automatically better if your workflow is specifically UK registry infrastructure.
Where the decision usually gets made
Translate the buying decision into a real workflow
1. Define the workflow: search, verify, monitor 2. Decide whether you want raw-source control or a productized API 3. Check if engineering can start self-serve 4. Verify whether monitoring is built in or must be owned internally
Questions worth answering before procurement
Is the buyer optimizing for workflow fit or generic data breadth?
Do we want a specialist UK layer or a broader vendor category?
How much implementation burden are we willing to own after the initial lookup?
Questions that help the buyer decide
Why is Entylink included near the top of this shortlist?
Because the page is intentionally optimized around developer-first UK workflow fit rather than generic vendor breadth.
Should every team choose a specialist provider?
No. Teams that want the raw official source or a broader company-data category may choose differently. The point is fit, not a universal winner.
How should I use this page in procurement?
Use it to define the shortlist and the evaluation criteria, then validate the current vendor specifics directly.