The Legal Entity Identifier (LEI) is a 20-character, alphanumeric code based on the ISO 17442 standard, uniquely identifying legal entities involved in financial transactions. It connects to key reference information, promoting transparency in the global marketplace.
An LEI code is structured to include:
MNS's Legal Entity Identifier (LEI): 335800A8BMKQJ84CVX34

1. Transparency and Trust: LEIs answer “who is who” and “who owns whom” in the financial system, reducing ambiguity and enhancing trust.
2. Regulatory Compliance: LEIs are required by various financial regulators globally to monitor and analyze systemic risk.
3. Operational Efficiency: LEIs streamline processes in the financial industry, reducing costs and improving data quality.
LEIs are issued by accredited Local Operating Units (LOUs). The process involves:
The Global LEI System (GLEIS) comprises:
The LEI system is a cornerstone of financial transparency and risk management in the global marketplace. By providing a unique identifier for legal entities, it enhances trust, simplifies regulatory compliance, and supports efficient financial operations.
Frequently Asked Questions(FAQ):
Q1: What does LEI stand for?
A1: LEI stands for Legal Entity Identifier. It is a globally unique 20-character alphanumeric code used to identify legal entities engaged in financial transactions.
Q2: Why was the LEI system introduced?
A2: The LEI system is intended to increase transparency in global financial markets, enabling regulators, financial firms and other interested parties to easily identify who is who (“who is who”) and who owns whom, which the 2008/09 crisis revealed had been an important unmet need in being able to identify exposure and risk across entities.
Q3: Is an LEI mandatory?
A3: Whether an LEI is required will vary according to regulatory requirements and the type of transaction, entity or counterparty in your jurisdiction. Most countries/regulators mandate LEIs for derivative deals, large cross-border transactions, regulatory reporting, etc.
Q4: Is LEI data public?
A4: Yes. As such, the information related to LEIs is stored in a global public database operated by GLEIF. LEI reference data is free to access and anyone can search for LEI based reference data.
Recommended Read: