NET ASSIST

What NET ASSIST does

NET ASSIST is a Tokyo-based managed service provider (MSP) founded in 2000 that delivers the full server infrastructure lifecycle — design, construction, migration, 24/7 monitoring, maintenance, and security — primarily to Japanese enterprise, government, and SMB clients. The company operates as a top-level (Advanced Rank) sales and technical partner in Sakura Internet's partner network, co-developing and reselling the SAKURA Package Plans (bundled Sakura Cloud + managed services) alongside multi-cloud support for AWS, IDCF, Azure, and GCP. Its proprietary technology includes SavaMoni, an in-house server monitoring tool that supports Ubuntu 26.04 LTS agent monitoring, and it leverages third-party technologies (Trend Micro Deep Security for IPS/IDS, WafCharm for AI-assisted WAF rule optimization, Cyber Security Cloud's SIDfm VM for vulnerability management, and IIJ's STRIGHT for cookie-consent compliance).

The company's revenue model combines recurring monthly subscriptions (MSP Assist plans, SAKURA Package Plan tiers, security add-ons) with project-based professional services (server construction, cloud migration, and one-time setup) and ancillary services (domain/SSL procurement, payment agency). Pricing is published in yen, contract-based with minimum 6-month terms, and billed exclusively via bank transfer. NET ASSIST is structured as a Kabushiki Kaisha (joint-stock corporation) and operates as a core subsidiary within the SO-TEN Group, a 36-company IT conglomerate of roughly 1,100 employees, providing the infrastructure layer for the group's web production, SEO, advertising, and development businesses. As of 2024, the company claims a track record of managing 30,000+ server hosts across 300+ client companies, holds ISO 27001 certification, and concentrates go-to-market on inbound-led direct sales augmented by web-production partner referrals (~40% of engineering case volume).

The company is led by Representative Director and CEO Ito Masashi (伊藤誠史), operates a single-tenant Tokyo headquarters in Ikebukuro (relocated 2020), supports fully remote engineering and sales positions, and has identified Osaka as a potential future office. Its GTM motion is sales-led, content-driven (Sakura Cloud Lab, technical dictionary, blog) and channel-augmented, with co-exhibited presence at Japan IT Week and AI Expo. The all-engineer (no-outsourcing) model is positioned as a security and quality differentiator, and customer segments include listed chains, public-sector institutions, and educational organizations in addition to long-tail SMB subscribers.

Name

NET ASSIST

Legal name

株式会社ネットアシスト

Website

https://netassist.ne.jp

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

11–50 employees

Short description

NET ASSIST is a Tokyo-based managed service provider founded in 2000 that delivers 24/7 server monitoring, construction, migration, and security services. It serves 300+ Japanese enterprise, government, and SMB clients, primarily as a top-tier Sakura Internet partner managing 30,000+ hosts.

Ownership category

akta.pro rank

Product category

Managed IT Services (Cloud / Server Infrastructure MSP)

NAICS

Computer Facilities Management Services (541513), Computer Systems Design and Related Services (5415), Computer Systems Design Services (541512)

SIC

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

akta.pro primary industry

Cloud & Infrastructure Support (Servers, Storage, Virtualization) (BPAAACAE)

akta.pro secondary industries

Incident Response, On-Call & Operational Readiness (BPAEAKAL), Network Implementation & Integration Services (BPAEAEAB)

Keywords

• Managed service provider
• Server monitoring services
• Cloud server operations
• Infrastructure managed services
• Server security services

Headquarters

HQ city

Toshima

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Managed Services (MSP): Recurring revenue from 24/7 server monitoring, maintenance and operations services. Includes Gold Plus, Gold, and Silver plan tiers. Security update and patch management included depending on plan level. Monthly billing.
2. Server Design, Construction and Migration Services: One-time or project-based revenue from designing, building, and migrating server/cloud infrastructure. Covers network design, OS/middleware installation, WAF/FW setup, domain/SSL configuration, and database creation.
3. Security Services: Revenue from security products including WAF (攻撃遮断くん, WafCharm), IPS/IDS (Deep Security), vulnerability diagnosis, and web tampering detection. Offered as add-ons to MSP contracts or standalone.
4. SAKURA Package Plans (Sakura Cloud managed bundle): Bundled managed service packages combining Sakura Cloud server hosting with MSP monitoring. Three tiers (Single, DB Separation, Redundant). Sold as initial setup + recurring monthly fee. Includes bundled security and optional add-ons.
5. Domain, SSL and Payment Agency Services: Revenue from domain registration, SSL certificate procurement and installation, and payment agency (payment processing management) services for customers.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

NET ASSIST provides 24/7/365 managed services for server infrastructure — design, construction, migration, monitoring, maintenance and operations (MSP) — supporting multi-cloud (AWS, Sakura Cloud, IDCF, Azure, GCP) and Linux/Windows environments. The company also delivers bundled server-and-monitoring packages (SAKURA Package Plans) and a portfolio of website/network security services (WAF, 攻撃遮断くん, WafCharm, IPS/IDS via Deep Security, web tampering detection, vulnerability diagnosis). All operations are performed by in-house engineers with no outsourcing.

Product overview

NET ASSISTは、サーバー構築・監視・保守・運用を行うMSP（Managed Service Provider）企業。主力サービスのMSPアシスタントを中心に/AWS・SAKURA・IDCFの各クラウド向けアシスタントサービス、およびサーバー構築・移行・バックアップ等のインフラサービスを展開。セキュリティ分野ではDeep Security IPS/IDS、Web改ざん検知、脆弱性診断、WAF、攻撃遮断くん、WafCharm等のセキュリティサービスを提供する。オールインワンパッケージのSAKURAパッケージプランやWordPress保守、Cookie同意バナーツール（STRIGHT）などの附加サービスも展開。2000年創業以来30,000ホスト以上の実績を持つ。

Differentiator

Problem solved

Functional benefit

Brands

• SAKURA Package Plan (SAKURAパッケージプラン): All-in-one server construction to maintenance service using Sakura Cloud, offered in three plans (Single, DB Separation, and Redundancy) with 24/7 monitoring.
• Sakura Cloud Labo by NET ASSIST (さくらのクラウドラボ by NET ASSIST)
• MSP ASSIST (MSPアシスト)
• STRIGHT (ストライト)

Products and services

• MSP Assist (サーバー監視保守運用サービス) 24/7/365 server monitoring, maintenance and operations service covering 30,000+ hosts. Manages OS and middleware updates, backup, security patches and incident response. Available in Gold Plus / Gold / Silver plan tiers with security update and patch management varying by tier. Targets organizations lacking in-house 24/7 infrastructure operations capability.
• AWS Assist (AWS構築・保守・運用代行サービス) End-to-end Amazon Web Services managed service — design, construction, monitoring and operations support on AWS. Targets Japanese enterprises requiring AWS engineering expertise and 24/7 operations without in-house capabilities.
• SAKURA Assist (さくらクラウド構築・保守・運用サービス) Managed service for Sakura Internet's domestic Sakura Cloud — infrastructure design, monthly fixed-fee operations, and migration support. Targets organizations preferring a Japanese public cloud provider with simple monthly pricing.
• IDCF Assist Managed construction, maintenance and operations for the IDC Frontier (IDCF) cloud. Low-cost entry starting at 500 yen/server with high-speed, large-capacity networking. Targets cost-sensitive SMB and mid-market customers.
• Server and Cloud Server Construction (サーバー・クラウドサーバー構築) Selection, design and construction of server environments across multiple vendor partners based on the customer's business requirements. Includes network design, OS/middleware installation, WAF/FW setup, domain/SSL configuration and database creation. Targets organizations launching new web services or migrating.
• Domain and SSL Acquisition & Setup Agency (ドメイン・SSL取得＆設置代行サービス) One-stop agency service covering domain registration and SSL certificate procurement, installation and renewal. Supports secure web server infrastructure build. Targets customers lacking the operational expertise to handle certificates themselves.
• Server and Cloud Migration Support (サーバー・クラウド移行支援サービス) Migration services from existing server environments to cloud environments, including data migration and infrastructure refresh. Targets organizations modernizing legacy infrastructure to cloud platforms such as Sakura Cloud, AWS or IDCF.
• Payment Agency Service (支払代行サービス) Agency service for cloud-service billing. Simplifies monthly payment management by consolidating invoices into a single bill from NET ASSIST. Targets SMB and mid-market customers using multiple cloud vendors.
• Backup Service (バックアップサービス) Acquisition and operation of server data backup. Provides Sakurai archive (daily 3-generation) and other managed-backup options. Supports business continuity and disaster recovery use cases.
• Deep Security IT Protection Service (IPS/IDS) IPS/IDS service delivered via Trend Micro Deep Security, providing network-layer attack defense and intrusion detection/prevention. Targets organizations requiring monitored network-layer security on managed servers.
• Web Tampering Detection Service (Web改ざん検知) Website content monitoring for unauthorized modification, with detection and alerting on website tampering to prevent reputation damage. Targets customers operating public-facing sites that need integrity monitoring.
• Vulnerability Diagnosis Service (脆弱性診断サービス) Application and network diagnostic service. Automatically collects global vulnerability data for OS, applications and network firmware, and provides remediation guidance. Supports compliance and security hardening engagements.
• WAF (Web Application Firewall) Firewall service that defends websites and web applications against attacks. Offered as an add-on to MSP contracts or standalone. Targets organizations protecting public-facing web properties from application-layer attacks.
• Attack Interception Service (攻撃遮断くん) Server protection service defending against unauthorized access and DDoS attacks. Targets customers needing managed DDoS and unauthorized-access protection layered on top of their managed server environment.
• WafCharm (WAF Rule Optimization) AI-based WAF rule optimization service that automatically tunes WAF rules to maintain optimal security configuration. Offered as an add-on to WAF deployments. Targets customers running WAF who want to reduce manual rule tuning overhead.
• SAKURA Package Plan (SAKURAパッケージプラン) All-in-one bundled managed service combining Sakura Cloud server hosting with NET ASSIST MSP monitoring, security and operations. Available in three tiers: Single Plan (CPU 4 core / RAM 8 GB / Disk 100 GB, monthly 48,000 yen), DB Separation Plan (CPU 3 core / RAM 8 GB / Disk 100 GB ×2, monthly 98,000 yen), and Redundancy Plan (CPU 2 core ×4 / RAM 6 GB / Disk 100 GB ×4, monthly 158,000 yen). Initial fees 150,000–400,000 yen. 5-day delivery promise, 6-month minimum contract.
• STRIGHT (ストライト) — Cookie Consent Banner Tool SaaS cookie-consent banner tool developed by IIJ and distributed by NET ASSIST. Enables Japanese website operators to easily implement cookie consent banners for GDPR / Japanese privacy regulation / CCPA compliance, with customizable design and flexible policy updates. Targets website owners needing compliant consent capture.
• WP Maintenance Dekita! (WP保守デキタ!) WordPress site maintenance service — security updates, performance optimization, backup management. Targets SMB and mid-market customers running WordPress sites.
• Website Production and System Development (Webサイト制作／システム開発) End-to-end website production and system development service — design, build and development — delivered in-house or in partnership with partner companies. Targets customers launching or rebuilding corporate websites or web applications.
• SAKURA Local-Government Bidding Support Cloud Pack (SAKURA自治体入札支援クラウドパック) New managed-service bundle within the SAKURA Assist portfolio, designed to provide local-government entities with a secure cloud-infrastructure package tailored to bidding processes.

Quantifiable outcome

• 30,000+ server hosts managed
• +3 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature4 records

Partnerships

Five partnerships are on record, tiered supporting, core and minor.

• 株式会社インターネットイニシアティブ (Internet Initiative Japan Inc., IIJ)supportingTechnology or Integration · 9 February 2026NET ASSIST began distributing IIJ's STRIGHT (ストライト) cookie consent banner tool, designed to help website operators comply with privacy regulations (GDPR/CCPA) by easily implementing cookie consent banners. NET ASSIST handles implementation for customers.
• さくらインターネット株式会社 (Sakura Internet Inc.)coreChannel Partner/ Reseller/ Distributor · 17 June 2024NET ASSIST is a top-level Advanced Rank (最上位) sales and technical partner in the Sakura Partner Network. The companies co-develop and sell the SAKURA Package Plans — bundled Sakura Cloud + managed services offerings. NET ASSIST has built and operated over 1,000 Sakura Internet servers and co-exhibits at events. Sakura Internet has been a partner since NET ASSIST's founding in 2000.
• 株式会社サイバーセキュリティクラウド (Cyber Security Cloud Inc.)supportingTechnology or Integration · 20 July 2023NET ASSIST adopted Cyber Security Cloud's SIDfm VM for MSP — a vulnerability collection and management tool for MSP providers. This tool automates global vulnerability data collection, provides Japanese-language analysis, and enables NET ASSIST to offer improved vulnerability response management to its MSP customers.
• セキュリティ連盟 (Security League)minorGTM or Marketing Partner · 2 February 2022NET ASSIST joined the Security League (セキュリティ連盟), an industry group initiated by Cyber Security Cloud Inc. with the tagline 'Making Japanese DX Safer.' 34 companies participate. The league conducts cybersecurity awareness activities and educational seminars, including inviting companies that have experienced cyberattacks to share their experiences.
• ソウテングループ (SO-TEN Group)coreOthersNET ASSIST is a member of the SO-TEN Group, an IT-related enterprise group of 36 companies with approximately 1,100 employees. The group operates in web production, SEO, advertising, CG design, and app development. NET ASSIST provides the group's infrastructure and IT services, while the group supports NET ASSIST through shared resources and the entrepreneur support/spinout program.

Scale indicators6 records

Recent moves9 records

Expansion highlights7 records

Broad incumbents

• SCSK Corporation: One of Japan's largest IT services companies (Sumitomo group) offering cloud managed services, infrastructure operations, and security to enterprise clients. Overlaps NET ASSIST's mid-market and enterprise MSP business but with much broader portfolio and global delivery capability.
• BIPROGY: Japanese system integrator (formerly UNISYS Japan) with cloud managed services, datacenter operations, and security offerings. A broad incumbent in the same enterprise managed infrastructure space where NET ASSIST competes for mid-market deals.
• NTT-AT (NTT Advanced Technology): NTT group subsidiary providing network infrastructure, managed services, and security operations across Japan. Comparable in the managed infrastructure and monitoring space, with the advantage of NTT brand and group reach.
• Sakura Internet: Japan's leading domestic public cloud and hosting provider and NET ASSIST's top-tier partner since 2000. Overlapping infrastructure and basic managed services, but at hyperscale and as an infrastructure owner rather than a pure MSP.
• KDDI (Cloud & Managed Services): Major Japanese telecom offering WAKU Work, KDDI Cloud Platform, and managed cloud services to enterprise. Competes with NET ASSIST for mid-market and enterprise managed services contracts but with substantially larger scale.

Direct peers

• NRI Netcom: Japanese managed IT services provider within the Nomura Research Institute group, offering datacenter operations, network monitoring, and cloud managed services to enterprise customers—overlapping directly with NET ASSIST's MSP Assist and security offerings.
• Serverworks: Tokyo-based AWS Premier Tier MSP offering cloud architecture, migration, 24/7 monitoring, and managed operations to Japanese enterprises. Closest direct comparator to NET ASSIST's AWS Assist line, though more AWS-centric versus NET ASSIST's multi-cloud focus.
• Internet Initiative Japan (IIJ): Major Japanese Internet/network services provider offering cloud (IIJ GIO), managed services, and security. Also a technology partner of NET ASSIST (STRIGHT cookie consent). Directly comparable across managed infrastructure, security, and public-sector cloud services.

Emerging players

• Cyber Security Cloud: Japanese cloud security vendor behind WafCharm (also distributed by NET ASSIST) and the creator of the SIDfm vulnerability platform. A technology partner, but its managed security and WAF offerings compete with portions of NET ASSIST's security portfolio.
• Fixpoint: Tokyo-based IT infrastructure monitoring vendor (e.g., ESPRIQUE) offering server and network monitoring solutions to Japanese enterprises. Overlaps with NET ASSIST's SavaMoni monitoring business and competes for similar monitoring-tooling budgets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/NETASSIST_
• Facebookfacebook.com/netassist.inc

Compliance1 record

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 NET ASSIST