Twitter marketing automation software, source code and know-how for sale

Asking price	¥2,500,000
Annual revenue	¥1 to ¥5,000,000 (annual, as shown in range)
Operating profit	¥0 to ¥5,000,000 (operating profit, as shown in range)
Price vs profit	Profit is shown as a band starting at ¥0, so the price is at least 0.5 times profit and could be any multiple. Ask for the real number before you get excited.
Location	Tokyo (23 wards), Japan
Industry	Web marketing / digital marketing software (SaaS-style automation tool)
Employees	No employees
Transfer type	asset (譲渡対象事業 / 譲渡資産：ノウハウ,ソフトウェア,ウェブサイト・アプリ)

What is for sale

A software system that automates X (formerly Twitter) marketing tasks, particularly managing mutual-promotion and retweet groups, with logic for condition checks, duplicate prevention, auto-pause, and group quality analysis. The system has been sold mainly to overseas users for several years and has generated cumulative sales of over 20 million yen (the wider service has done over US$300,000 lifetime). The owner is selling not because the business is unprofitable, but because they are now CEO of a new AI venture and CTO of another company, leaving no time to run or maintain this system.

This is an asset sale, so the buyer acquires the source code, know-how and materials directly and must set up their own company, accounts and branding rather than inheriting an existing legal entity.

What is included

Full source code of the Twitter/X marketing automation system
System build and operation know-how
Setup instructions and operating documents
License management logic for multi-account use

Strengths (as the seller states them)

Cumulative sales of over 20 million yen from real paying users, not just a concept
Low infrastructure cost, roughly 5,000 to 10,000 yen per month across all users combined, so margins scale well
Built with real operational logic (group condition checks, duplicate prevention, auto-pause, quality scoring) rather than a simple macro
No brand lock-in, buyer can rebrand and resell as their own SaaS product

Wrinkles a careful buyer would ask about

Sale is of source code and know-how only, not a company or brand, so there is no existing legal entity, bank account or licence transferring with it
Buyer will need technical skill or access to an engineer to maintain and further develop the system
Revenue and profit are shown only as broad bands (1 yen to 5 million yen), with no detailed financials disclosed publicly
Net assets and precise figures are hidden until you register as a member
Transfer of any third-party platform accounts (e.g. related to X) may be restricted by that platform's own terms, so this needs checking during negotiation
Seller does not intend to stay on after the sale, so a clean handover of technical knowledge is essential upfront

Paying for it

If you stay overseas. No Japanese bank will lend to a new company whose director lives abroad. The realistic stack is your own cash plus asking the owner to take part of the price over 2 to 3 years. That one question is in every Deal Pack.

If you move to Japan. On a visa that lets you run a business, Japan Finance Corporation lends up to ¥72M at about 1 to 2 percent for exactly this. Once you have a Japanese company, the government pays two-thirds of due diligence and registered-broker costs, up to about ¥8M (round 16 closes 6 Nov 2026). You start a bank relationship from zero.

Full rundown, with the catches: japandealflow.com/money

Summary of a public listing as at 2026-09-23. Seller-reported figures, not verified. Listings sell fast, the original may already be gone. Nothing here is financial or visa advice. Free weekly email: Japan Deal Flow.