
BIS 50 Rule Calculator: The Supplier That Looked Clean Until We Mapped Ownership
Use our BIS 50 rule calculator to check aggregate ownership, find hidden subsidiaries, and flag minority ownership red flags for Entity List and MEU risk.
Stop calculating ownership percentages in spreadsheets. Get sub-second aggregation results, full ownership chain visibility, and timestamped evidence for your compliance files.
Compliance teams are drowning in ownership math. Here is what we hear every week.
Tracing indirect ownership through shell companies in Excel is error prone and impossible to audit.
Compliance teams spend hours per entity manually calculating aggregate percentages across ownership chains.
When BIS asks how you calculated ownership, you need timestamped evidence, not a stale spreadsheet.
The BIS 50% rule says: if sanctioned parties collectively own 50% or more of an entity, that entity inherits their restrictions. The challenge is calculating "collectively" when ownership flows through multiple layers.
Target Company: Acme Widget Corp
Owner A (Entity List): Owns 60% of Holding Co X
Holding Co X: Owns 50% of Acme Widget Corp
Indirect ownership calculation: 60% × 50% = 30%
If another listed party owns 25% directly, the aggregate is 55%, triggering the rule.
Everything you need to operationalize ownership screening.
Sub-second calculation of aggregate ownership percentages across multi-layer corporate structures.
See every ownership path from target entity up to sanctioned owners, with percentages at each level.
Sources we sync from: OFAC SDN, BIS Entity List, BIS MEU, UN Sanctions, EU Consolidated List, UK Sanctions.
Timestamped record of your query: entity searched, ownership chain found, lists checked, result timestamp.
Every ownership lookup generates a timestamped record for your compliance files. This is not "audit defense"; it is documentation showing what you checked, when you checked it, and what the system found.
The objections we hear, and straight answers.
Public corporate filings plus customer-imported CSV or manually added relationships. You control the inputs; the engine does the math.
You can import ownership edges via CSV or add relationships manually. Once added, the calculation runs against your data.
Same-day updates. Each query shows the sync timestamp, and we link to source list pages where available.
Teams that need ownership screening without the spreadsheet pain.
Managing classified visitor access and export-controlled technology.
Screening vendors and partners in complex global supply chains.
Operationalizing BIS and OFAC 50% rule requirements at scale.
Advising clients on ownership screening without manual graph building.
Clear boundaries on what this tool does and does not do.
This tool does not provide legal counsel. Consult qualified export control attorneys for compliance decisions.
We calculate ownership from data you provide or import. We are not a primary source of corporate records.
Results depend on data quality and completeness. We do not guarantee regulatory compliance outcomes.
Limited spots available. Get early access to ownership aggregation screening and help shape the product before general release.
The BIS 50% rule applies Entity List and MEU List restrictions to any entity that is 50% or more owned, directly or indirectly, by listed parties. This mirrors OFAC's longstanding 50% rule for SDN ownership.
The system traverses all ownership paths from a target entity upward. If multiple listed owners each hold partial stakes, their percentages are summed. For example, if Owner A (listed) holds 30% and Owner B (listed) holds 25%, the aggregate is 55%.
We sync from OFAC SDN, BIS Entity List, BIS Denied Persons, BIS MEU, BIS Unverified List, UN Sanctions, EU Consolidated List, and UK Sanctions. New sources are added based on customer requirements.
Yes. You can upload ownership relationships via CSV or add them manually through the admin interface. The calculation engine uses whatever data you provide.
The Evidence Pack is a timestamped record containing: entity name searched, ownership chain discovered, sanctions lists checked, aggregate percentage calculated, and query timestamp. This is documentation for your compliance files.
No. This tool performs calculations based on data you provide. It does not constitute legal advice, guarantee regulatory compliance, or replace consultation with qualified export control counsel.
Most ownership lookups complete in under one second. Complex graphs with many ownership layers may take slightly longer.
Beta participants will have early access to the production release and input on feature priorities. Pricing will be announced separately.
Disclaimer
This tool and the information provided in this article are for informational purposes only and do not constitute legal advice. The BIS 50% rule and related regulations are complex and subject to change.
Ownership calculations depend on the accuracy and completeness of data you provide or import. SecurePoint USA does not guarantee the accuracy of calculations, regulatory compliance outcomes, or fitness for any particular purpose.
Always consult with qualified export control counsel before making compliance decisions. Regulatory enforcement timelines mentioned are planning assumptions based on publicly available information and may change.
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