What XTREME-D does

XTREME-D (エクストリームーD株式会社) is a Tokyo-based startup founded in February 2015 by Naoki Shibata (formerly of Compaq/HP, Microsoft Windows HPC, and Cray) that operates Raplase (Ra+), an HPC-as-a-Service platform targeting enterprise AI developers, manufacturing R&D teams, and research organizations. The company is headquartered in Shinagawa, Tokyo, with a 100%-owned US subsidiary (XTREME-D AMERICA Inc.) established in San Mateo, California in April 2019. XTREME-D has 11-50 employees and is privately held.

Raplase is a browser-accessible unified management console that orchestrates bare-metal GPU compute across multiple infrastructure backends, including Xtreme-D's own IaaS, AWS, Oracle Cloud Infrastructure, Sakura Internet's high-compute PHY, and Japan's Fugaku supercomputer (accessed via a Riken co-research partnership signed in 2021). The product family comprises three tiers: Raplase Supercomputing Platform (annual subscription for enterprise R&D with a 'Neo-Premise' colocation model for customer-owned GPU servers); Raplase AI Next (multi-cloud AI development platform with fixed annual/monthly/daily subscription, private LLM auto-deployment, and the newly adopted Fujitsu AI Computing Broker for up to 3x GPU throughput); and SimA (a partner-delivered managed simulation service operated by NDR). Technology stack includes NVIDIA A100/H200 GPUs, AMD EPYC Gen3 CPUs, DDN Lustre storage, and ISO/IEC 27001:2022 certified operations.

Xtreme-D's revenue model is predominantly annual subscription with bundled all-in-one pricing that includes infrastructure, management software, support, and (for customer-owned hardware) data center colocation. Go-to-market combines consultative enterprise sales (board advisor Jun Nishimura is a former HP Japan senior executive), self-serve platform access for mid-market users, and channel partnerships including cloud resellers and the SimA partner program. Named customers span manufacturing R&D (one anchor enterprise with ~800 users), civil engineering disaster prevention (Applied Technology), automotive CAE (NDR/SimA), biotech drug discovery, and motorsport autonomous racing (Selbs Japan/TGM Grand Prix, A2RL Silver Race winners 2025). The company is venture-backed, having completed its Series A round in October 2017 (led by World Innovation Lab with Freebit Investment participation), with no public funding activity disclosed since.

Name

XTREME-D

Legal name

エクストリームーD株式会社 (XTREME-D Inc.)

Website

https://xtreme-d.net

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

XTREME-D is a Tokyo-based startup operating Raplase, a browser-accessible HPC-as-a-Service platform that orchestrates bare-metal GPU compute across multi-cloud, colocation, and Fugaku supercomputer environments for enterprise AI developers, manufacturing R&D, and scientific computing customers.

Ownership category

akta.pro rank

Product category

Cloud HPC and AI Computing Platform

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computer Systems Design and Related Services (5415), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)

SIC

Services-Computer Integrated Systems Design (7373), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

AI Server Systems & HGX/Accelerator Platforms (HDAAAAAB)

akta.pro secondary industries

AI Compute Virtualization & Scheduling (GPU virtualization, cluster schedulers) (HDAAAAAG), AI Accelerators (GPUs/TPUs/NPUs/ASICs) (HDAAAAAA)

Keywords

• HPC cloud computing
• AI cloud platform
• GPU bare metal
• Multi-cloud orchestration
• HPC as a service

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Raplase Supercomputing Platform Subscription: Annual subscription covering HPC infrastructure, Raplase software, data center colocation, power, monitoring, and network. Minimum 12-month contract with annual auto-renewal. Pricing bundled — includes cloud infrastructure, management, UI, support, and for customer-owned servers, data center fees.
2. Raplase AI Next Subscription: Fixed subscription model available in annual, monthly, and daily units. Covers GPU bare-metal cloud access across multiple cloud environments, multi-cloud orchestration dashboard, JupyterLab, virtual desktop, local LLM auto-setup, and Fujitsu ACB boost option.
3. Raplase Professional Services (Consulting): High-touch consulting for HPC environment design including RFP creation, infrastructure vendor selection, and negotiation. Provided as a monthly fixed-fee option for a limited number of engagements.
4. SimA Managed Simulation Services: Partner solution where Xtreme-D engineers use Raplase to execute and proxy-analalyze MATLAB/Simulink simulations, FPGA verification, and AI training on behalf of customers. Billed as a service engagement.

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels9 records

Core offering

XTREME-D operates the Raplase (Ra+) platform, a browser-accessible AI/HPC cloud service that provisions bare-metal GPU environments across multiple cloud providers (AWS, Oracle Cloud, Sakura Internet) and Japan's Fugaku supercomputer. The company delivers subscription-based HPC compute, multi-cloud orchestration, GPU monitoring, JupyterLab and VNC environments, and consulting for enterprise R&D customers. Core product lines are Raplase Supercomputing Platform (Neo-Premise), Raplase AI Next (multi-cloud AI development), and the partner-delivered SimA simulation acceleration service.

Product overview

XTREME-D operates as an AI/HPC platform company offering the Raplase (Ra+) product family with three main tiers: Raplase Supercomputing Platform for enterprise HPC workloads via Neo-Premise (on-premises redefinition) and multi-cloud environments; Raplase AI Next for AI development, generative AI, and private LLM deployment across multiple cloud providers; and SimA as a partner-delivered simulation acceleration service built on Raplase. Raplase serves as the unified platform across all offerings, providing web-browser-based access to GPU compute, job scheduling, JupyterLab environments, and virtual desktop access. The platform integrates Fujitsu AI Computing Broker as a GPU optimization option for Raplase AI Next.

Differentiator

Problem solved

Functional benefit

Brands

• Raplase: AI and HPC cloud service platform - main product brand replacing AXXE-L
• Raplase Supercomputing Platform
• Raplase AI Next
• SimA

Products and services

• Raplase (Ra+) AI and HPC cloud service platform enabling GPU-accelerated computing, job scheduling, and resource management via web browser. Unified dashboard spans multiple cloud environments including Raplase IaaS, Sakura Internet, Oracle Cloud, AWS, and Fugaku supercomputer. Targets enterprise AI developers, data scientists, and engineering teams.
• Raplase Supercomputing Platform HPC subscription platform delivering on-premises-class performance with cloud operations via 'Neo-Premise' colocation model. Supports bare-metal GPU servers, automated cluster deployment, multi-user management, Fugaku supercomputer access, and integration with 100+ scientific applications for enterprise R&D environments.
• Raplase AI Next Multi-cloud AI development platform providing on-demand GPU environments, automatic private LLM deployment, JupyterLab and VNC workspaces, and an optional Fujitsu AI Computing Broker (ACB) GPU boost. Targets enterprise teams building proprietary generative AI without vendor lock-in.
• SimA Partner-delivered simulation acceleration solution using Raplase infrastructure. Offers managed MATLAB/Simulink and CAE simulation execution, FPGA build acceleration, AI model training optimization, and outsourced analysis services provided by experienced partner engineers to manufacturing customers.

Quantifiable outcome

• Up to 13x faster MATLAB/Simulink simulation speed using Raplase vs. conventional environments
• +5 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability7 records

Feature8 records

Partnerships

Eleven partnerships are on record, tiered notable, core and flagship.

• Japan Motor-Racing Industry Association (JMIA, 日本自動車レース工業会)notableGTM or Marketing Partner · 7 April 2026Xtreme-D admitted as a sponsoring member of JMIA, a NPO with ~80 member companies united around 'Building a world-class Japanese racing car industry.' Xtreme-D plans to provide technology support to JMIA projects and member companies using Raplase and supercomputer implementation technology.
• Fujitsu (Fujitsu Limited / Fujitsu Laboratories)coreTechnology or Integration · 6 March 2026Xtreme-D formally adopted Fujitsu's AI Computing Broker (ACB) technology into Raplase AI Next as a selectable option. ACB optimizes GPU resource allocation, achieving up to 3x throughput improvement and near-elimination of resource idle time. Both companies conducted joint validation since October 2024 and released a public validation report. Endorsed by Fujitsu Laboratories Computing Research Institute Director Kenta Nakajima.
• Sumitomo Electric IndustriesnotableStrategic or Co-development Partner · 30 July 2025Sumitomo Electric and Xtreme-D jointly demonstrated dynamic GPU allocation across multiple servers using optical circuit switch control software. The demonstration connected two servers to a GPU expansion box via optical path switching, enabling flexible GPU resource management over distances up to 1 km, reducing infrastructure costs and enhancing operational efficiency.
• Riken Center for Computational Science — Fugaku SupercomputerflagshipTechnology or Integration · 1 January 2021Xtreme-D selected as a Fugaku Cloud-use Co-research Partner. Raplase provides simplified access to Fugaku — Japan's fastest supercomputer and world #1 — for customers. Fugaku access includes 100+ pre-configured HPC/scientific applications (Gaussian, Gromacs, etc.). Separate Fugaku usage terms and user identification required in addition to Raplase subscription.
• AWS (Amazon Web Services)coreTechnology or IntegrationAWS GPU instances integrated as one of Raplase's multi-cloud infrastructure backends. Raplase provides a unified management dashboard across AWS and other cloud providers, enabling enterprises to avoid vendor lock-in while leveraging AWS's AI GPU lineup.
• Oracle Cloud Infrastructure (OCI)coreTechnology or IntegrationOracle Cloud GPU bare-metal instances serve as a supported infrastructure backend within Raplase's multi-cloud orchestration platform.
• Sakura Internet (さくらインターネット) — 高火力PHYcoreTechnology or IntegrationSakura Internet's high-performance compute PHY (bare-metal GPU) service is integrated as a multi-cloud backend for Raplase. Sakura's Japanese domestic data center presence complements Xtreme-D's service offering.
• NDR (Nihon Denshi Radio, エヌ・ディ・アール)notableChannel Partner/ Reseller/ DistributorNDR operates SimA (partner solution) using Raplase as the underlying HPC platform for managed simulation services. NDR provides MATLAB/Simulink, FPGA, and AI training acceleration services to end customers using Raplase. SimA is marketed as a partner solution on Xtreme-D's website.
• NVIDIA (GPU providers — A100, H200)coreTechnology or IntegrationNVIDIA GPUs (A100, H200) form the core compute backbone of Raplase's bare-metal cloud offerings. Xtreme-D provides GPU monitoring, job scheduling, and performance optimization for NVIDIA GPU workloads.
• M-TEC (TEAM MUGEN AUTOBACS)notableGTM or Marketing PartnerXtreme-D holds a sponsorship agreement with M-TEC's TEAM MUGEN AUTOBACS competing in the Super Formula Championship. Sponsorship provides technology development insights for HPC applications in motorsport while building brand visibility.
• Honda Mobilityland (F1 Japanese GP)notableGTM or Marketing PartnerXtreme-D is a co-sponsor of Honda Mobilityland's F1 Japanese GP event 'Honda Mobilityland Youth Innovation Awards 2026,' awarding the 'Xtreme-D Award' (free Raplase usage credits) to promising youth teams. Also sponsors SUPER FORMULA Friday Partner Day events at Suzuka Circuit.

Scale indicators9 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• CoreWeave: US-based specialized GPU cloud provider offering bare-metal NVIDIA GPU instances for AI training and inference with Kubernetes-native orchestration. Directly comparable to Raplase in offering bare-metal GPU compute optimized for LLM and HPC workloads, though at much greater scale and primarily US-focused.
• Lambda: GPU cloud provider offering on-demand and reserved NVIDIA H100/A100 instances plus GPU workstations and clusters. Comparable to Raplase in serving AI developers and research teams with bare-metal GPU access, though Lambda focuses on self-serve consumption rather than consultative enterprise HPC design.
• Rescale: Cloud HPC platform delivering simulation and CAE workloads (CFD, FEA, MATLAB/Simulink) across multiple cloud backends with a unified management dashboard. Closely mirrors Raplase Supercomputing Platform's positioning as multi-cloud HPC for engineering simulation, including the SimA-style managed simulation service angle.

Regional players

• Sakura Internet: Japan's largest domestic cloud and hosting provider operating high-compute PHY (bare-metal GPU) service integrated with Raplase. Functions both as an infrastructure channel partner for XTREME-D and a potential competitor in the Japanese GPU cloud segment, particularly for government and sovereign cloud buyers.

Broad incumbents

• Oracle Cloud Infrastructure (OCI): Hyperscaler offering bare-metal GPU instances and HPC clusters as one of Raplase's multi-cloud backends. Competes as a broad incumbent with substantially deeper capital, global data center footprint, and bundled enterprise software — directly comparable to the GPU layer that Raplase orchestrates.
• Amazon Web Services (AWS): Hyperscaler offering EC2 GPU instances, ParallelCluster, and AWS Batch for HPC/AI workloads. Serves as both Raplase's largest infrastructure channel and a primary competitor for enterprise HPC budgets. Its scale and on-demand pricing model represent the alternative that Raplase's bundled subscription must beat on simplicity.
• Fujitsu: Major Japanese ICT vendor and ACB technology partner to XTREME-D. Overlaps with Raplase in providing enterprise HPC infrastructure (including supercomputer-class systems) and is the supplier of the ACB middleware integrated into Raplase AI Next. Acts simultaneously as partner and large-scale potential competitor in the Japanese enterprise HPC market.

Emerging players

• Run:ai: GPU orchestration and virtualization platform optimizing AI workload scheduling across Kubernetes clusters. Comparable to Raplase's job scheduling, GPU monitoring, and Fujitsu ACB-style throughput optimization features, though Run:ai operates as software that sits on top of customer GPUs rather than providing the underlying compute.
• Vast.ai: GPU marketplace aggregating underutilized consumer and data-center GPUs for AI training. Comparable to Raplase in providing flexible GPU compute to AI developers, but positioned at the opposite end of the trust/isolation spectrum — marketplace model vs. Xtreme-D's bare-metal, dedicated-environment model.
• Paperspace (DigitalOcean): GPU cloud platform acquired by DigitalOcean offering on-demand GPU instances with a developer-friendly dashboard, Jupyter notebook integration, and Gradient workflows. Comparable to Raplase AI Next's positioning for AI developers, with a stronger self-serve / pay-as-you-go model.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/XDINC_Official
• YouTubeyoutube.com/@xtreme-dinc.30
• Instagraminstagram.com/xtreme_d20150202
• Facebookfacebook.com/xdlinc
• LinkedInlinkedin.com/company/xdinc

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds5 records

Investors2 records

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 XTREME-D