The short answer
Choose MemberCheck if you want a complete screening and monitoring platform that works from day one. You get unlimited users, daily automated re-screening, KYB and identity verification in one workflow, and pricing that does not climb every time you add a member of staff.
Choose World-Check if your firm is contractually required to hold the World-Check dataset itself, or you are a very large bank, government body or intelligence agency that has standardised on it. It is one of the most established risk-intelligence databases available.
MemberCheck and World-Check, compared
Every figure below comes from each provider's own published materials, current at August 2026. MemberCheck details are taken from membercheck.com and nexiant.ai. World-Check details are taken from LSEG's product pages and risk-intelligence brochure.
Figures reflect each provider's own public materials at August 2026 and can change over time, so confirm current specifications directly with each vendor. World-Check, World-Check One, Zero Footprint and LSEG are trademarks of the London Stock Exchange Group and are used here only to identify and compare the products.
| Criterion | MemberCheck | World-Check (LSEG) |
|---|---|---|
| What it is | A full AML screening and monitoring platform with a built-in review workflow | A risk-intelligence database, screened through the World-Check One platform and its APIs |
| Data | Aggregates multiple premium risk sources and screens 1,000+ global watchlists across 195 countries | LSEG's own researched database of over 4 million records across 240 countries and territories |
| Ongoing monitoring | Daily automated re-screening that only raises an alert when a customer's risk actually changes | Profiles updated daily by a global research team, every day of the year |
| Delivery | Cloud dashboard and a RESTful API, with batch scanning in CSV or XML | World-Check One platform, APIs including Zero Footprint, plus an XML or CSV data file |
| User licensing | Unlimited users, with no per-seat fee | Enterprise subscription (Standard or Advanced), priced on a custom basis |
| KYB and entity verification | Built into the same platform and workflow | Available through extension datasets and UBO data |
| Certification | ISO 27001-aligned, within an EMVCo-certified, GDPR and FATF-aligned group | ISAE 3000 for its sanctions process and controls |
| Pricing | Based on screening volume and the features you use. Request a quote | Enterprise and custom, not listed publicly |
| Typically chosen by | SME and enterprise compliance teams who want a ready-to-use platform with unlimited seats | The world's largest banks, corporates, government and law-enforcement bodies |
Figures reflect each provider's own public materials at August 2026 and can change over time, so confirm current specifications directly with each vendor. World-Check, World-Check One, Zero Footprint and LSEG are trademarks of the London Stock Exchange Group and are used here only to identify and compare the products.
Which one fits your firm
These products are built for different buyers. Here is where each one is the stronger choice, so you can shortlist the right fit rather than the loudest name.
MemberCheck is the stronger fit when:
- You want a working screening platform on day one rather than a development project
- You need to give many staff or branches access without paying per seat
- You want ongoing monitoring, KYB and identity verification in one workflow
- Australian obligations matter to you, including AUSTRAC, Tranche 2 and local list coverage
- You want a compliance partner, with consulting and outsourced options available
World-Check is the stronger fit when:
- A regulator or counterparty requires you to hold the World-Check dataset itself
- You are a Tier-1 bank, a government body or an intelligence agency operating at very large scale
- You have the engineering resource to build screening around a data feed and APIs
- You need the deepest single researched database and have the enterprise budget for it