Mono-X

What Mono-X does

MONO-X (株式会社MONO-X) is a privately held Japanese software company headquartered in Roppongi Hills Mori Tower, Tokyo, that operates as the sole IBM i (AS/400)-only cloud integrator in Japan and holds IBM Platinum Partner status. The company builds and sells three integrated platform products purpose-built for IBM i environments: PVS One, a managed cloud migration service to IBM Power Virtual Server (IBM Cloud) bundled with proprietary X2 Gateway, R2 backup, M2 monitoring, and PVS One iDR disaster recovery; API-Bridge, an API management tool that exposes RPG/COBOL programs and Db2 for i as REST APIs and consumes external SaaS APIs from IBM i; and MONO-X One, a no-code browser-based platform for building B2B-facing web applications (inventory inquiry, order management, purchase history) directly connected to IBM i and other databases.

The business operates on a multi-stream revenue model: SaaS subscriptions for MONO-X One (monthly fixed fee) and PVS One/API-Bridge (annual credit-based subscriptions with unlimited rollover), managed services bundled with IBM Cloud Power Virtual Server infrastructure (markup on cloud consumption plus 24/7 Japanese-language support), and professional services for implementation, migration, and training. Go-to-market combines direct enterprise sales, IBM's Platinum Partner channel and IBM Cloud Catalog listings (enabling global reach), and an exclusive 2026 distribution agreement with Iguazu (株式会社イグアス) and its ~600-partner network for AI agent products. The target customers are Japanese enterprises in manufacturing, distribution, logistics, and retail running IBM i as their core ERP, facing legacy system modernization, BCP/DR, B2B transaction digitalization, and IBM i talent scarcity challenges.

In March 2026, MONO-X executed an absorption-type company split transferring its AI business (including PHPQUERY) to a newly established 株式会社kozokaAI, while retaining the IBM i-focused core platform. The company also launched i-Cross API for AI Agents and PVS One for AI Agents (2026-02) to bridge IBM Bob AI agents to IBM i via MCP, signaling a strategic pivot toward AI-agent governance on legacy IBM systems. As of mid-2026, MONO-X remains an active operating company serving 200+ IBM i user customers across Japan, with a public merger notice dated 2026-07-21 indicating a further pending structural transaction.

Name

Mono-X

Legal name

株式会社MONO-X

Website

https://mono-x.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

MONO-X is a Tokyo-based Japanese software company and IBM Platinum Partner that provides cloud migration, API integration, and no-code B2B application solutions exclusively for IBM i (AS/400) environments, serving manufacturers, distributors, logistics firms, and retailers across Japan.

Ownership category

akta.pro rank

Product category

Enterprise Integration Software

NAICS

Custom Computer Programming Services (541511), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Services-Computer Integrated Systems Design (7373), Services-Computer Programming Services (7371)

akta.pro primary industry

Virtualization & Hyperconverged Infrastructure (HCI) Management (HDABABAB)

akta.pro secondary industries

Hyperscale/OEM & Open Compute (OCP) Server Platforms (HDACABAI), General-Purpose Compute (VMs & Bare Metal IaaS) (HDABAAAA)

Keywords

• IBM i cloud migration
• API management software
• No-code development
• Managed cloud services
• Disaster recovery solutions

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SaaS Subscriptions (MONO-X One, PVS One, API-Bridge): MONO-X's core products are offered as cloud SaaS on a subscription basis. MONO-X One is priced with no initial cost and a fixed monthly subscription fee. PVS One is priced as an annual subscription with credit-based usage and unlimited rollover. API-Bridge is a licensed product available in IBM Cloud Catalog. All products operate on a subscription/SaaS model targeting recurring revenue.
2. IBM Cloud Infrastructure Resale (PVS One): PVS One bundles IBM Cloud Power Virtual Server infrastructure with MONO-X's managed services, configuration, migration, and operational support. Revenue is generated through markup on IBM Cloud consumption plus managed service fees, structured as annual subscriptions with monthly credit-based billing.
3. Professional Services (Implementation, Migration, Training): Implementation and migration services for IBM i cloud transitions, AI agent integration, and custom development are provided alongside product sales. These services support customer onboarding and drive product adoption, often bundled with subscription contracts.
4. IBM Cloud Catalog Listings: PVS One and API-Bridge are available in the IBM Cloud console as official listings, enabling IBM's global sales channel to resell and promote MONO-X solutions. This extends MONO-X's reach beyond Japan.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

Mono-X develops and sells a unified platform of three proprietary products purpose-built for IBM i (AS/400) environments: PVS One for cloud migration and managed services to IBM Power Virtual Server, API-Bridge for exposing legacy RPG/COBOL programs and Db2 for i data as REST APIs, and MONO-X One for building B2B-facing web applications without code. The platform is sold primarily as SaaS subscriptions to Japanese enterprises running IBM i systems in manufacturing, distribution, logistics, and retail sectors.

Differentiator

Problem solved

Functional benefit

Brands

• PVS One: IBM i (AS/400) cloud migration support service to IBM Power Virtual Server
• MONO-X One
• API-Bridge
• PHPQUERY

Products and services

• PVS One
• API-Bridge for IBM i
• MONO-X One
• PVS One iDR (Disaster Recovery)
• PVS One On-Premise Box
• PVS One X2 Gateway
• i-Cross API for AI Agents
• PVS One for AI Agents
• Zend Server, Zend Guard, and Zend Studio

Quantifiable outcome

• BtoB EC deployment in 4 months (vs. traditional development cycles of 12+ months)
• +4 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration13 records

AI capability6 records

Feature7 records

Partnerships

Six partnerships are on record, tiered flagship and core.

• IBM Bob (by IBM)flagshipTechnology or Integration · 24 March 2026MONO-X developed i-Cross API for AI Agents specifically to enable IBM Bob (IBM's AI agent for RPG/COBOL development) to safely interact with IBM i systems via MCP protocol. MONO-X and Iguazu jointly released this tool on 2026-02-26, with general availability planned for 2026-03-24. IBM Bob is an Anthropic Claude Code-powered AI development tool for IBM i.
• 株式会社イグアス (Iguazu Co., Ltd.)flagshipChannel Partner/ Reseller/ Distributor · 26 February 2026MONO-X and Iguazu co-developed i-Cross API for AI Agents and PVS One for AI Agents to support IBM Bob AI agent adoption on IBM i. Iguazu acts as the exclusive sales distributor, selling through its nationwide network of ~600 business partners (resellers and SI companies). MONO-X provides product development; Iguazu handles nationwide distribution. Joint press release dated 2026-02-26.
• 日本IBM (IBM Japan)coreTechnology or Integration · 1 April 2024MONO-X operates as an IBM Platinum Partner — the highest tier in IBM's partner program — specializing exclusively in IBM i (AS/400) environments. As the only IBM i-only cloud integrator in Japan, MONO-X co-develops go-to-market strategies with IBM, receives IBM Champion designations for its executives, and is authorized to list products in the IBM Cloud Catalog. IBM provides Customer Success Manager (CSM) support, technical sales resources, and cloud infrastructure (Power Virtual Server).
• 日本IBM (IBM Japan) — CSM Team (小野田氏, 今木氏)coreStrategic or Co-development PartnerJapan IBM provides dedicated Customer Success Manager (CSM) support to MONO-X's PVS One customers. CSM team includes IBM i software support legends (小野田氏) and cloud quality management leaders (今木氏). These individuals provide technical guidance, facilitate IBM Cloud best practices, and support PVS One service quality — described as 'IBM i レジェンド' and essential to MONO-X's service delivery.
• ICOs (IBM Cloud Object Storage)coreTechnology or IntegrationPVS One iDR uses IBM Cloud Object Storage (ICOS) as the primary cloud storage destination for IBM i backup images and disaster recovery data. ICOS provides 99.9999999999999% (15-nines) durability, S3-compatible API, and cross-region replication. ICOS is integral to PVS One's DR and backup value proposition.
• Power Virtual Server (IBM Cloud)coreTechnology or IntegrationPVS One is built on IBM Power Virtual Server (PowerVS), IBM's official cloud platform for IBM i. MONO-X is the only cloud integrator in Japan authorized to provide managed PVS One services. The partnership enables IBM i workloads to run on IBM Cloud with Japanese-language managed services, 24/7 monitoring, and cloud-native disaster recovery.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@sugata-ch
• LinkedInlinkedin.com/company/omni-science

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 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 Mono-X