NTT Group

What NTT Group does

NTT Group (Nippon Telegraph and Telephone Corporation, TSE: 9432) is a publicly traded Japanese telecommunications conglomerate founded in 1952, operating through a diversified portfolio of wholly-owned subsidiaries spanning enterprise IT services (NTT Data), cybersecurity (NTT Security Holdings), data center infrastructure (NTT DC REIT, NTT Global Data Centres), mobile services (NTT DOCOMO BUSINESS), and emerging sustainable food production (NTT Green & Food). The firm is headquartered in Tokyo with operating geographies covering Japan, the United States, Europe (Sweden, Norway), India, the Philippines, Singapore, Hong Kong, Chile, and the UAE.

NTT Security Holdings, the analytical focal point given the data density, functions as the cybersecurity core of NTT Group. Its flagship product, SamurAI Managed Detection and Response (MDR), provides 24/7 monitoring by elite SOC analysts, integrating with 60+ third-party security platforms including CrowdStrike, Palo Alto Networks, Cisco, Microsoft, Fortinet, Okta, Claroty, and Nozomi Networks. The platform is differentiated by NTT's Global Threat Intelligence Center, which monitors over 40% of global IP prefixes via NTT's public Internet backbone, generating proprietary threat intelligence with 73% of security incidents detected by NTT-developed tools. Regional delivery arms include NTT Security Japan (330 employees, ISMS certified), NTT Security Sweden (Mölndal-based), and NTT Security Norway.

Revenue mechanics span managed services contracts (NTT Data cloud operations, digital transformation consulting), subscription-based recurring MDR pricing (custom annual contracts), and data center REIT rentals (NTT DC REIT with 94.3% occupancy as of December 2024). Go-to-market is enterprise-led direct sales complemented by a partner channel including Tussa IKT, Nexer Cybersecurity, Ingram Micro, NTT Data Inc., and NTT Docomo Business. Strategic posture is offensive: NTT is expanding globally via inorganic moves (Mumbai data center acquisition for INR 559 crore, PLDT Vitro stake exploration), new product lines (APN InterLink all-photonics network for financial trading, 400G Global IPLC, Photonics-Electronics Convergence Technology), and capital deployment (Mujin Series D lead, NTT DC REIT IPO raising US$773 million in July 2025).

Name

NTT Group

Legal name

NTT Security Holdings Corporation

Website

https://security.ntt

Company type

Public

Founded year

1952

Operating status

Operating

Headcount range

501–1,000 employees

Short description

NTT Security Holdings is the cybersecurity arm of Japan's NTT Group, providing 24/7 managed detection and response (SamurAI MDR), threat intelligence, and security consulting to large enterprises, government, and critical infrastructure globally. It operates from Japan, Sweden, and Norway with 60+ platform integrations.

Ownership category

akta.pro rank

NAICS

Security Systems Services (except Locksmiths) (561621), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Telephone Communications (No Radiotelephone) (4813)

akta.pro primary industry

Cloud Detection & Response (CDR) (HDADADAG)

Keywords

• Managed detection and response
• Cybersecurity services
• Enterprise IT outsourcing
• Telecommunications infrastructure
• Data center services

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Enterprise IT and Managed Services: Cloud operations, data management, and digital transformation consulting services for large organizations
2. Managed Detection and Response (MDR): Subscription-based cybersecurity monitoring and incident response services with 24/7 support
3. Data Center REIT: Real Estate Investment Trust for data center properties across US, Europe, and Asia-Pacific

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

NTT Group delivers end-to-end ICT solutions spanning telecommunications, enterprise IT services, and managed cybersecurity. Through its core cybersecurity subsidiary NTT Security Holdings and the flagship SamurAI MDR service, the group provides 24/7 managed detection and response, proactive cyber defense, threat intelligence, incident response, and consulting to enterprises and governments worldwide. Complementing this, NTT Data delivers cloud, data management, and digital transformation services, while NTT operates photonic network infrastructure (APN InterLink, 400G IPLC) and data center facilities via NTT DC REIT.

Product overview

NTT Group operates a diversified portfolio of technology and security products organized across multiple business segments. The core cybersecurity offering centers on NTT Security Holdings Corporation, which provides proactive cyber defense services powered by the Global Threat Intelligence Center for 24/7 threat monitoring and incident response. The flagship SamurAI MDR (Managed Detection & Response) service provides continuous security monitoring with elite analyst support and integrates with over 80 third-party security platforms including CrowdStrike, Palo Alto Networks, Microsoft, and Cisco. NTT Security Japan and NTT Security Sweden serve as regional delivery arms, offering specialized services including OT security for industrial environments, IoT product security, and supply chain security. Beyond cybersecurity, NTT Group provides enterprise IT services through NTT Data Services including cloud operations and digital transformation consulting, network infrastructure via Global IPLC and APN InterLink services for financial trading, and data center operations through the NTT DC REIT. The company also operates emerging technology initiatives in photonics-electronics convergence and sustainable food production.

Differentiator

Problem solved

Functional benefit

Brands

• SamurAI MDR: Managed Detection and Response (MDR) cybersecurity service offering 24/7 monitoring, threat intelligence, and incident response. Monitors over 40% of global IP prefixes and has elite SOC analysts ranked in top 1% globally in cybersecurity competitions.

Quantifiable outcome

• Reduced incident response time by 60%
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles5 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration84 records

AI capability6 records

Feature3 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Japanese Telecom OperatorscoreStrategic or Co-development Partner · 1 June 2026NTT Group collectively signed agreement with KDDI, SoftBank, and Rakuten Mobile to ensure mobile battery supply during disasters, with seven battery manufacturers participating.
• PLDT VitrominorStrategic or Co-development Partner · 1 January 2026PLDT explored minority stake sale to NTT Group before deciding to list Vitro data center subsidiary as REIT. The planned REIT would include eight of Vitro's 11 data centers in Philippines totaling 27MW capacity.
• NTT Green & FoodminorStrategic or Co-development Partner · 1 December 2025Constructing land-based RAS facility for coho salmon and trout production in Kesennuma City, Miyagi Prefecture, in collaboration with AquaBioTech Group.
• AquaBioTech GroupminorStrategic or Co-development Partner · 1 December 2025Technology partner for land-based recirculating aquaculture system (RAS) facility development.
• NTT DOCOMO BUSINESScoreTechnology or Integration · 1 October 2025Launched APN InterLink service in Hong Kong for financial institutions, utilizing all-photonic network technology for ultra-low latency connectivity.
• NTT Com AsiacoreTechnology or Integration · 1 October 2025Jointly launched APN InterLink service in Hong Kong supporting latency-sensitive financial trading operations.
• Tussa IKTminorChannel Partner/ Reseller/ DistributorNorwegian IT services company integrating NTT Security's SamurAI MDR solution for their business customers.
• Nexer CybersecurityminorChannel Partner/ Reseller/ DistributorPartner integrating and reselling NTT Security services.
• Ingram MicrominorChannel Partner/ Reseller/ DistributorGlobal technology distributor for SamurAI MDR services in Sweden.
• DOCOMOcoreTechnology or IntegrationSubsidiary collaborating on photonic-electronic convergence solutions showcase at Mobile World Congress 2026.
• Chunghwa TelecomminorStrategic or Co-development PartnerPartner in distributed data center architecture enhancement using photonic-electronic solutions.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Expel: Cloud-native MDR provider with transparent pricing and broad security vendor integrations (CrowdStrike, Microsoft, Okta). Comparable to SamurAI MDR on 24/7 SOC delivery, rapid onboarding model, and enterprise customer focus, with similar tech-differentiator positioning.
• Sophos: Cybersecurity vendor with Sophos MDR service and now owner of Secureworks. Comparable to NTT Security on managed detection across endpoint/firewall, partner-led distribution (Sophos is a SamurAI integration partner via Sophos Central), and enterprise/SMB managed security delivery.
• Secureworks: Global MDR and managed security services provider (now operating under Sophos). Competes head-to-head with NTT Security on enterprise MDR, threat intelligence, and incident response, with comparable SOC analyst-driven delivery model and Taegis XDR platform integrations.
• eSentire: MDR-focused provider with 24/7 SOC and multi-vendor XDR support, including OT/ICS use cases. Highly comparable to SamurAI MDR on managed detection, incident response retainers, and mid-market/enterprise GTM, with similar reliance on third-party security telemetry integrations.
• Arctic Wolf: Pure-play MDR specialist delivering 24/7 managed detection and response across IT environments. Directly comparable to NTT Security's SamurAI MDR on product scope, subscription pricing, and enterprise target customer, though without NTT's OT/maritime depth or conglomerate distribution.
• ReliaQuest: Enterprise MDR and security operations provider built on the GreyMatter platform with broad third-party integrations (CrowdStrike, Palo Alto, Microsoft). Directly comparable to SamurAI MDR on enterprise-targeted managed detection, multi-vendor telemetry normalization, and threat intelligence-driven defense.

Broad incumbents

• Fujitsu: Japanese-headquartered global IT services and infrastructure provider directly comparable to NTT Data/NTT Group on enterprise IT outsourcing, hybrid cloud, and security services in Japan and Europe. Closest Japanese peer for NTT's combined IT services + managed security portfolio.
• CrowdStrike: Leading endpoint/cloud workload security platform with Falcon Complete MDR service. Comparable to NTT Security on enterprise MDR delivery and CrowdStrike is one of SamurAI's 80+ integrated telemetry sources, making it both a partner and indirect competitor through its own MDR offering.
• Palo Alto Networks: Broad cybersecurity platform with Unit 42 MDR services and Cortex XDR product. Comparable to NTT Security on managed detection and incident response at enterprise scale, and a primary integration partner for SamurAI MDR via Cortex XDR Pro and Panorama.

Regional players

• Trend Micro: Japan-origin global cybersecurity vendor with managed detection, OT security, and threat intelligence offerings. Comparable to NTT Security on managed security portfolio breadth, Japan heritage, and OT/industrial cybersecurity focus, though primarily competes in endpoint and email security rather than pure MDR.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/NTTSH_JP
• GitHubgithub.com/SamuraiMDR
• LinkedInlinkedin.com/company/nttsecurity

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries11 records

Funding overview

Funding rounds

Investors

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

M&A

Investments3 records

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

Frequently asked questions about NTT Group