ENGLISH

We decide what to build, then build it.

INTEPRAL Inc. is a Tokyo-based company working on system development and AI adoption. We are usually brought in before the requirements are fixed, and we stay until the system is actually used on the floor.

日本語のサイトはこちら

THE NAME

Principles Remain Integral.

INTEPRAL is not a misspelling of INTEGRAL. We replaced the G of INTEGRAL with the P of PRINCIPLE. Change what should be changed; keep what must not be changed. That single letter is our decision rule.

WHAT WE DO

Four ways in

System DevelopmentCore business systems, internal tools, CRM/SFA, API and data integration, AI applications. From requirements through implementation to adoption. From JPY 3,000,000.
AI AdoptionWe start by deciding which work should not be handed to a machine, then design what goes where. Judgement that carries responsibility stays with people.
Project DesignDesigning the project before you place the order: requirements, evaluating whether a quote is reasonable, vendor selection, contract terms, acceptance criteria.
Global ExpansionMarket research, setting up local operations, building a sales organisation. Our founder was stationed in Vietnam and Indonesia, serving as a director of a local subsidiary.

CURRENT WORK

Three engagements, all live

01Staffing company — building a new core business system. Role: PdM.
02SaaS company — developing an AI sales-meeting assistant. Role: PdM and engineer.
03Overseas PR distribution service — launching in the Japanese market. Role: COO and head of sales, Japan.

Client names, figures and performance metrics are withheld under confidentiality obligations. Status as of August 2026.

COMPANY

We decide what to build, then build it.

Principles Remain Integral.

Four ways in

Three engagements, all live

Company information