Is SIEGJPJ1 a valid SWIFT code?

Yes. SIEGJPJ1 has the right format and is in our directory for LEADING SECURITIES CO.,LTD., CHUO-KU TOKYO. Confirm with the beneficiary that it is the bank that holds their account.

What is the difference between SIEGJPJ1 and SIEGJPJ1XXX?

None. SIEGJPJ1 is the 8-character form of SIEGJPJ1XXX; XXX at the end means the head office. Either works.

SWIFT/BIC · Japan

SIEGJPJ1

LEADING SECURITIES CO.,LTD. · Head office · CHUO-KU TOKYO

Code details

SWIFT/BIC: SIEGJPJ1 (SIEGJPJ1XXX)
Institution: LEADING SECURITIES CO.,LTD.
Office: Head office
Branch code: XXX · head office
Address: ACROSS SHINKAWA BIDG.5F,1-8-8,SHINKAWA, 104-0033 CHUO-KU TOKYO
City: CHUO-KU TOKYO
Country: Japan

What SIEGJPJ1 means

SIEGJPJ1XXX

SIEGBank code
Four letters chosen by the institution.
JPCountry code
Japan (ISO 3166)
J1Location code
Where the institution sits on the SWIFT network. A 1 in second place marks a passive participant.
XXXBranch code
XXX, or nothing at all, means the head office.

Paying an account at this bank

Japan does not use IBAN: send the beneficiary’s local account number with this code. Check an IBAN →

Questions

Is SIEGJPJ1 a valid SWIFT code?: Yes. SIEGJPJ1 has the right format and is in our directory for LEADING SECURITIES CO.,LTD., CHUO-KU TOKYO. Confirm with the beneficiary that it is the bank that holds their account.
What is the difference between SIEGJPJ1 and SIEGJPJ1XXX?: None. SIEGJPJ1 is the 8-character form of SIEGJPJ1XXX; XXX at the end means the head office. Either works.

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About this data

Codes are checked against our directory of banks on TrillioniPay corridors. Always confirm the code with the beneficiary’s bank before sending a payment. Last updated: 23 September 2026.

Institution names and addresses: Global Legal Entity Identifier Foundation (GLEIF) LEI data, available under CC0. The address is the legal entity’s registered or head-office address, which can differ from the office SWIFT lists.

SWIFT © and database rights August 2026. All rights reserved. This Mapping Table has been developed by SWIFT. Any use of the Mapping Table, in whole or in part, is subject to the BIC/LEI Mapping Table License Agreement as published with the Mapping Table available on GLEIF's website. The Mapping Table is updated monthly. For the latest BIC information and updates, always refer to www.swift.com/bic .