By SanctionsAI team · Updated 2026-08-09

Shell company and front company sanctions evasion

Shell companies and front companies are the oldest sanctions evasion tool. OFAC's 50 Percent Rule makes any entity owned 50% or more by a designated person itself designated, but proving ownership through layers of shell companies is the enforcement challenge.

TL;DR: Sanctioned individuals create layered corporate structures across multiple jurisdictions to obscure beneficial ownership. OFAC's 50 Percent Rule means any entity majority-owned by a designated person is also blocked, even if not separately listed. The challenge is identifying the ownership chain.

OFAC's 50 Percent Rule explained

Under OFAC regulations, any entity that is 50% or more owned, directly or indirectly, by a designated person is itself considered designated, even if not separately listed on the SDN list. This means a shell company 51% owned by an SDN is blocked property, even if its name does not appear on any sanctions list.

Common shell company structures

StructureHow it worksJurisdictions commonly used
Nominee directorDesignated person controls through a strawman directorBVI, Seychelles, Panama
Trust and corporate service providerProfessional intermediary holds shares on behalf of designated personCyprus, UAE, Cayman Islands
Layered holding companiesMultiple holding entities across jurisdictions to break ownership chainDelaware, Luxembourg, Singapore
Joint venture dilutionDesignated person holds exactly 49% to fall below thresholdVarious

Case: Oleg Deripaska entities

OFAC designated Oleg Deripaska in 2018 under the Russia sanctions program. Subsequent designations of his companies (EN+ Group, Rusal, ESE) demonstrated how OFAC extends the SDN list through the 50 Percent Rule. EN+ Group restructured its ownership to reduce Deripaska's stake below 50% to achieve delisting, showing the Rule works both ways.

Compliance takeaway: Screening company names against the SDN list is not sufficient. You must also screen beneficial owners. The EU's Ultimate Beneficial Owner (UBO) registries and the US Corporate Transparency Act are designed to address this gap.

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Frequently Asked Questions

What is OFAC's 50 Percent Rule?
Any entity that is 50% or more owned, directly or indirectly, by an SDN-listed person is itself considered designated, even if not separately named on the SDN list. One SDN at 50% plus another at 1% = 51% = blocked entity.
How do I know if a company is owned by a sanctioned person?
Check the SDN list for company names, then investigate beneficial ownership through UBO registries, corporate filings, and commercial databases like Refinitiv World-Check or Dow Jones Risk Center.
Does the 50 Percent Rule apply to EU and UK sanctions?
Yes, both EU and UK sanctions frameworks include analogous ownership-based blocking rules. The UK's OFSI applies a 50% rule similar to OFAC's.
Can AI agents screen for beneficial ownership?
AI agents can screen company names against the SDN list automatically. Beneficial ownership screening requires access to UBO registries or commercial databases, which some APIs provide. agentmail screens entity names against OFAC, EU, and UN lists.

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