FNS

What FNS does

FNS (Fuji Net Systems, Inc., 富士ネットシステムズ株式会社) is a privately held Japanese ICT systems integrator founded in 1960 and headquartered in Chuo-ku, Tokyo. The company designs, deploys, and maintains information and communications infrastructure for enterprise customers, with a service portfolio organized into three pillars: ICT infrastructure (PBX/telephone exchange systems, FMC mobile-internalization, security solutions, network systems, server/PC deployment, and wiring), cloud solutions (Microsoft 365 migration and deployment, Microsoft 365 third-party extensions, Azure, and other SaaS), and support operations (in-house maintenance plus a 24/7/365 monitoring center). FNS holds proprietary EPP/EDR and backup product FNS SecureSuite layered on partner security platforms.

Revenue is generated through project-based hardware and implementation work (telephony, network, and wiring), recurring managed services and support contracts, and outsourced 24/7 call center operations. Pricing is custom-quoted rather than publicly listed, and the go-to-market combines direct enterprise field sales with telecom partner referrals. Strategic partnerships underpin the model: FNS has been an authorized NTT East telecommunications equipment sales and service partner since 1993, an NTT Docomo strategic partner since 2013 (FMC and Docomo Business Office Link), and a Microsoft Japan partner since 2012. Named enterprise customers span telecommunications carriers (NTT Docomo Business, NTT East), technology (Fujitsu, under a relationship dating to 1969), higher education (Keio, Gakushuin, Kogakuin), and research (Nuclear Safety Research Association).

The company operates with 78 employees as of June 1, 2025, and FY2024 revenue of ¥1.029 billion. Its footprint consists of a Tokyo headquarters and two satellite offices in Kawasaki (2021) and Funabashi (2022), all within the Kanto Region. FNS holds ISO 9001, ISO/IEC 27001:2022, and ISO 14001 certifications, multiple construction and telecommunications business licenses, and a General Worker Dispatch Business license. The company is led by Representative Director Imai Kazuhiro, with Daiwa Kenichi serving as Chairman.

Name

FNS

Legal name

富士ネットシステムズ株式会社

Website

https://fnsys.co.jp/

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

51–100 employees

Short description

FNS (Fuji Net Systems) is a Tokyo-based Japanese ICT systems integrator that designs, deploys, and maintains PBX, network, cloud, and security infrastructure for enterprise, education, and telecom customers, supported by a 24/7 monitoring center.

Ownership category

akta.pro rank

Product category

ICT Infrastructure Services

NAICS

Computer Facilities Management Services (541513), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210)

SIC

Services-Telephone Interconnect Systems (7385), Services-Computer Programming, Data Processing, Etc. (7370), Computer Communications Equipment (3576)

akta.pro primary industry

Network Architecture & Design Services (BPAEAEAA)

akta.pro secondary industries

Cloud PBX & Hosted Telephony (HDAIAHAB), Private Cloud Networking & SDN/NFV Management (HDABABAK)

Keywords

• ICT infrastructure services
• Cloud migration services
• Network security solutions
• PBX telephone systems
• Managed monitoring services

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. ICT Infrastructure Solutions: Design, implementation, and maintenance of telecommunications infrastructure including PBX systems, network systems, security solutions, servers, and wiring services. Revenue generated from project-based implementation and ongoing maintenance contracts.
2. Cloud Solutions: Implementation and support of Microsoft 365 and other cloud solutions. Revenue from implementation services and ongoing support subscriptions.
3. Maintenance and Support Services: 24/7 monitoring center operations and technical support services for telephone systems, networks, servers, and cloud environments. Recurring revenue from support contracts.
4. Monitoring Center Services: 24-hour call center operations providing network equipment troubleshooting and customer inquiry handling services. Can be contracted for full-time or night-only shifts.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

FNS designs, implements, and maintains information and communications infrastructure for enterprise clients, including PBX/business phone systems, FMC mobile-internal calling solutions, network and security infrastructure, server/PC deployment, and in-house wiring services. The company also delivers Microsoft 365 and other cloud migration and deployment services, plus ongoing maintenance contracts and 24/7/365 remote monitoring and call center operations. Revenue is generated from project-based implementation, subscription-based cloud support, and recurring managed service contracts.

Product overview

FNS (富士ネットシステムズ) is an IT infrastructure and solutions provider offering integrated services through three main pillars: (1) Information and Communications Infrastructure (telephone exchange systems/PBX, FMC mobile internal calling, security solutions, network systems, server/PC deployment, and wiring services), (2) Cloud Solutions (Microsoft 365 migration and deployment, third-party Microsoft 365 extensions including GUARDIANWALL and Active! Gate, plus Azure and other cloud services), and (3) Support Operations (maintenance and operations support, plus 24/7 monitoring/contact center). The company's proprietary FNS SecureSuite provides EPP/EDR and backup capabilities as an integrated security offering. Services are delivered through in-house engineering teams for design, construction, and maintenance.

Differentiator

Problem solved

Functional benefit

Products and services

• Security Solutions (セキュリティソリューション)
• PBX / Business Phone System Implementation Service (電話交換機（PBX、ビジネスホン）導入サービス)
• FMC (Fixed Mobile Convergence) Implementation Service (FMC導入サービス)
• Network System Implementation (ネットワークシステム導入)
• Server and PC Implementation Service (サーバ・PC導入)
• Wiring Services (配線工事)
• Microsoft 365 Implementation Service (Microsoft 365導入サービス)
• Other Cloud Solutions (その他クラウドソリューション)
• Maintenance and Operations Support Service (保守・運用サポート業務)
• Monitoring Center / 24/7/365 Call Center Service (監視センター)

Quantifiable outcome

• 23.27% average margin rate on dispatched workers

Named customers8 records

Segments3 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration23 records

Feature1 record

Partnerships

Five partnerships are on record, tiered core.

• NTT Docomo, Inc. (株式会社NTTドメイン)coreStrategic or Co-development Partner · 1 January 2013Major strategic partner for mobile business solutions and FMC (Fixed Mobile Convergence) services. Provides NTT Docomo Business Office Link integration services.
• Microsoft Japan Co., Ltd. (日本 microsoft株式会社)coreTechnology or Integration · 1 January 2012Strategic partner agreement for Microsoft 365 and cloud solutions. The company provides implementation and support services for Microsoft 365 including Exchange Online, SharePoint Online, and Intune.
• NTT East Corporation (NTT東日本株式会社)coreTechnology or IntegrationAuthorized telecommunications equipment sales and service partner since 1993. Provides Flet's network services and related ICT infrastructure solutions.
• NEC Corporation (日本電気株式会社)coreTechnology or IntegrationPrimary vendor for PBX and business phone systems including NEC Aspire series and NEC SV series. Also provides UNIVERGE BLUE solutions for FMC.
• Fujitsu Limited (富士通株式会社)coreTechnology or IntegrationSystem equipment sales agent certified since 1969. Provides Fujitsu PRIMERGY servers and LIFEBOOK PCs.

Scale indicators3 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Net One Partners: Japanese network systems integrator specializing in enterprise network design, deployment, and managed services. Closely comparable to FNS in PBX/network/security integration and channel-led go-to-market in Japan.
• UNIADEX: NTT-affiliated systems integrator offering enterprise IT infrastructure, cloud, and managed services in Japan. Comparable in PBX, Microsoft 365, and managed services offerings and NTT distribution channel.
• NTT-AT (NTT Advanced Technology): NTT group company providing network, communications, and IT infrastructure solutions to enterprises. Overlaps with FNS in PBX, network integration, and NTT-driven enterprise sales motion.
• Cross Cat Holdings: Mid-sized Japanese IT services firm providing infrastructure, cloud, and security solutions to enterprises. Similar customer profile and integration-led business model to FNS.
• ITFOR: Japanese IT solutions provider focused on enterprise infrastructure, security, and cloud services. Comparable in scale and customer base to FNS, with similar vendor-partner GTM.

Broad incumbents

• Otsuka Corporation: Large Japanese office IT services company offering network, communications, cloud, and managed services. Much broader portfolio and headcount but overlapping communications infrastructure services.
• Internet Initiative Japan (IIJ): Major Japanese internet and network services provider with enterprise connectivity, cloud, and security offerings. Operates at much larger scale but competes in network and managed services.
• SCSK Corporation: Large Japanese systems integrator (Sumitomo group) covering infrastructure, cloud, and managed services. Comparable service categories but vastly larger scale and broader geographic reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance7 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 FNS