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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
LAMBDA
AWS CLOUDFRONT
ELIXIR
CORPORATE SALES
SPA
MYSQL
STARTUP FINANCE
MARKETING
POSTGRESQL
MARKDOWN
E2E TESTING
FINTECH
INFRASTRUCTURE MONITORING
AWS S3
PHOENIX FRAMEWORK
MAKEFILE
PROJECT MANAGEMENT
STATIC SITE GENERATOR
MACOS
HTML
SLACK
GIT
CLOUDFRONT
CLIENT ACQUISITION
ORIGINATION
DATABASE DESIGN
SHELLSCRIPT
ELM
ELM-CSS
CSS
CODE REVIEW
AWS ECS
PLAYWRIGHT
AWS AURORA
TYPEGRAPHQL
CLOUDFLARE PAGES
WEBHOOK
UI/UX DESIGN
ECTO
ELM-FORM-DECODER
TRELLO
ELEVENTY
OPENID CONNECT
AWS CLOUDWATCH
DOCUMENTATION
API DESIGN
BOND ISSUANCE
SPA DEVELOPMENT
SENDGRID
FUNCTIONAL PROGRAMMING
CLOUDFLARE FUNCTIONS
SECURITIES
DATA ANALYSIS
CUSTOMER SUCCESS
GITHUB PAGES
STYLED COMPONENTS
DOCKER
TYPESCRIPT
CLOUDWATCH
GITHUB
GOOGLE WORKSPACE
OAUTH2
GITHUB ACTIONS
ELM-GRAPHQL
CONFLUENCE
GRAPHQL
JAVASCRIPT
ABSINTHE
ESA
FIGMA
LINUX
BASH
AURORA
HELPDESK SUPPORT