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Siiibo証券

Siiibo証券 (Siiibo Securities) is a Japanese registered securities company (Type I Financial Instruments Business Operator) that enables individual and corporate investors to invest in privately placed corporate bonds issued by mid-to-late stage startups and newly listed companies. It offers yen-denominated fixed-rate interest income opportunities, secondary market trading, and a diversified, low-fee investment platform.
Distributed

Description

Siiibo証券 operates a securities platform focused on startup investment through corporate bonds (社債), particularly small-lot private placement bonds (少人数私募社債) limited to a maximum of 49 investors per issue. The company primarily serves mid-to-late stage startups and newly listed companies seeking financing beyond their early growth phase, offering bond terms with yields ranging roughly 2-8% and maturities of 1-4 years, with typical investment amounts of 50-3,000,000 yen. Investors can browse company IR information, submit investment preferences, purchase bonds with no purchase fees, monitor issuers during the holding period, and receive interest and principal repayments at maturity. Unlike social lending, these bonds are classified as first-class securities, allowing trading on a secondary market for liquidity before maturity. As a registered Type I Financial Instruments Business Operator, the company maintains segregated asset management, is covered by the Investor Protection Fund (up to 10 million yen), and has implemented security measures including passkey authentication for login.

Grant Funding

VC Funding

None
2026

$0

$13M

Technology & Skills

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