IDH

What IDH does

IDH (株式会社アイ・ディ・エイチ) is a privately held Tokyo-based System Engineering Services (SES) company founded on July 8, 2014 by Itoh Teiji, which places skilled engineers with Japanese enterprise clients across web systems, game development, infrastructure, mobile applications, AI, and IoT domains. Engineers are employed as full-time regular staff and deployed to client projects spanning upstream consulting through downstream maintenance, with mid-career hiring conducted via scout emails, third-party job platforms, and employee referrals. As of 2025–2026 the company reports 370+ employees and maintains 500+ active project assignments at any time, supported by offices in Tokyo (Taito-ku) and Saitama (Soka).

The company's business model is differentiated by an engineer-first compensation structure: 70% of project billing is returned to engineers as salary, described in company materials as the highest commission rate in the Japanese SES industry, with no management layer and zero forced project assignments. Engineers self-select from the available project pool and may change engagements mid-assignment. The firm supplements its core SES offering with proprietary products including RemoLabo (a remote-work/telework management system), ReviwMa (a code review service), and Uenovarista (a web-based Java programming learning platform), and operates an internal venture program supporting employee-led product development across AI, IoT, drones, blockchain, AR/VR, and other domains. Revenue is generated via quote-based enterprise contracts, with disclosed customer logos including NEC Solution Innovators, Hitachi Systems, Japan Computer Systems, SHIFT, CTC Technology, JFE Systems, SCSK Minori Solutions, Persol Career, IIJ Protect, and Outsourcing Technology. The firm is privately held with no disclosed external funding, parent company, or subsidiaries, and its operational scope is limited to Japan (primarily the Kanto region).

Name

IDH

Legal name

株式会社アイ・ディ・エイチ

Website

https://idh-net.co.jp

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

251–500 employees

Short description

IDH is a Tokyo-based System Engineering Services company founded in 2014 that places 370+ engineers at Japanese enterprise clients across web, mobile, infrastructure, AI, and game development projects, returning 70% of project billing to engineers and offering complementary products RemoLabo and Uenovarista.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. SES Engineering Services: IDH operates as an SES provider, placing engineers with client companies on a quotation/billing basis. The company retains a portion of the project billing while returning 70% to engineers as salary. Revenue is driven by the number and billing rate of active engineer placements. Additional revenue may come from proprietary products like RemoLabo (telework management system) and ReviwMa (code review service).

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

IDH operates as a System Engineering Services (SES) provider, placing directly employed engineers at client company project sites across Japan. The core SES service spans four categories: system consulting, management support, project support, and operations support, covering domains including open/Web systems, game development, infrastructure, AI, IoT, and mobile applications. The company also sells proprietary supplementary products: RemoLabo (remote work/telework management service), ReviwMa (code review service), and Uenovarista (Java-focused programming learning platform).

Product overview

IDH operates as a System Engineering Service (SES) company that provides skilled engineers to client organizations. Its core offering is the SES service spanning four categories: system consulting, management support, project support, and operations support. The company also offers supplementary services including RemoLabo (remote work support), Uenovarista (web-based programming learning platform), and an internal venture system supporting employee-led product development in areas such as AI, IoT, drones, and AR/VR. The portfolio is structured as a staffing services platform with associated workforce support tools.

Differentiator

Problem solved

Functional benefit

Brands

• RemoLabo: リモートワーク支援サービス（タイピングアニメーション生成サービス）
• レビュマ

Products and services

• SES (System Engineering Service) Primary service offering that places IDH-employed engineers at client company project sites across Japan. Covers four service categories — system consulting (system modernization, medium-to-long-term planning, operational support), management support, project support (infrastructure and application development), and operations support — spanning upstream to downstream project phases in domains including web, mobile, infrastructure, AI, IoT, and game development.
• RemoLabo Remote work/telework management service developed by IDH to assist engineers and clients with telecommuting infrastructure, workflows, and typinge animation generation for remote work support.
• Uenovarista (ウエノバリスタ) Web-based learning platform offering a Java-focused programming curriculum for beginner to intermediate learners, with structured progression and feedback on understanding gaps.
• ReviwMa (レビュマ) Code review service offered as a proprietary product alongside RemoLabo, providing code review capabilities for software development teams.

Quantifiable outcome

• All employees who joined saw salary increases — increases of ¥1,000,000 at hiring are not uncommon. One engineer reported doubling their annual income after joining IDH.
• +4 more outcomes

Named customers10 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• TechnoPro: Japan's largest engineering staffing and SES company with ~25,000+ engineers. Operates the same core model of placing engineers on client projects but at vastly larger scale, with broader service lines including consulting and global delivery.
• Recruit Holdings: Global HR services and matching giant. Operates IT engineer staffing platforms (e.g., Indeed, Ricca) that overlap with IDH's engineer-matching value proposition, though at much larger scale and broader scope.
• Persol Holdings (formerly Temp Holdings): One of Japan's largest HR services and staffing groups, including IT engineer placement via subsidiaries. Persol Career is a listed IDH client. Operates as a much larger incumbent across Japan.

Direct peers

• Outsourcing Technology: Listed Japanese IT engineer staffing and engineering services company. IDH listed Outsourcing Technology as one of its major clients but it is also a direct competitor offering the same SES/IT staffing model nationally.
• WDB Holdings: Engineering-focused staffing firm with a significant share of technical and IT engineer placements in Japan. Offers temporary engineer staffing and dispatch services comparable to IDH's SES core business.
• PE-BANK: Mid-sized Japanese SES company specializing in IT engineer placement with a similar engineer-friendly positioning model. Competes directly with IDH for the same mid-career engineer talent pool and enterprise client projects in the Kanto region.
• CTC Technology: Japanese IT services company providing engineering talent and infrastructure solutions. Listed as an IDH client and a near-direct competitor in IT engineer deployment for enterprise projects.
• Akihabara Engineering (Akiba Ei): Japanese SES company focused on placing IT engineers with client projects, similar in size and mid-market positioning to IDH. Direct head-to-head competitor for the same engineer demographics and contract assignments.

Regional players

• SHIFT: Japanese software testing and quality assurance specialist that also offers engineer placement. Listed as an IDH client and operates in adjacent IT staffing/engineering services in Japan.

Others

• Mynavi (Engineer career platform): One of Japan's largest job-matching and HR platforms that competes with IDH's recruitment channels for mid-career IT engineers. Functions as both a customer acquisition channel and indirect competitor for engineer-side mindshare.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Customer concentration

• Xx.com/idh_net4all
• Facebookfacebook.com/idh4all

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about IDH