NTT Group
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.
- Company typePublic
- Founded1952
- HeadquartersTokyo, Japan
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
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).
NTT Group firmographics
Firmographics- 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
NTT Group industry classification
Industry- 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
Where NTT Group is headquartered
LocationHeadquarters
- HQ city
- Tokyo
- HQ country
- Japan
- HQ region
- Asia
Offices4 records
Markets served
NTT Group business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Enterprise IT and Managed Services: Cloud operations, data management, and digital transformation consulting services for large organizations
- Managed Detection and Response (MDR): Subscription-based cybersecurity monitoring and incident response services with 24/7 support
- Data Center REIT: Real Estate Investment Trust for data center properties across US, Europe, and Asia-Pacific
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Enterprise cybersecurity subscription |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels3 records
NTT Group product offering
Product offeringCore 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
Companies that use NTT Group
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles5 records
NTT Group technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration84 records
AI capability6 records
Feature3 records
NTT Group partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core and minor.
- Japanese Telecom OperatorscoreNTT Group collectively signed agreement with KDDI, SoftBank, and Rakuten Mobile to ensure mobile battery supply during disasters, with seven battery manufacturers participating.
- PLDT VitrominorPLDT 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 & FoodminorConstructing land-based RAS facility for coho salmon and trout production in Kesennuma City, Miyagi Prefecture, in collaboration with AquaBioTech Group.
- AquaBioTech GroupminorTechnology partner for land-based recirculating aquaculture system (RAS) facility development.
- NTT DOCOMO BUSINESScoreLaunched APN InterLink service in Hong Kong for financial institutions, utilizing all-photonic network technology for ultra-low latency connectivity.
- NTT Com AsiacoreJointly launched APN InterLink service in Hong Kong supporting latency-sensitive financial trading operations.
- Tussa IKTminorNorwegian IT services company integrating NTT Security's SamurAI MDR solution for their business customers.
- Nexer CybersecurityminorPartner integrating and reselling NTT Security services.
- Ingram MicrominorGlobal technology distributor for SamurAI MDR services in Sweden.
- DOCOMOcoreSubsidiary collaborating on photonic-electronic convergence solutions showcase at Mobile World Congress 2026.
- Chunghwa TelecomminorPartner in distributed data center architecture enhancement using photonic-electronic solutions.
Scale indicators7 records
Recent moves8 records
Expansion highlights6 records
NTT Group competitors and assessment
Company assessmentDirect 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
NTT Group social profiles
Digital presenceNTT Group compliance and trust
Trust signalCompliance1 record
NTT Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
NTT Group leadership team
Management profileNumber of profiles
Profiles10 records
NTT Group subsidiaries and ownership
Company hierarchySubsidiaries11 records
NTT Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
NTT Group M&A and investment
M&A and investmentM&A
Investments3 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about NTT Group
What does NTT Group do?
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.
Is NTT Group a public or private company?
NTT Group is a public company. It is currently operating.
When was NTT Group founded?
NTT Group was founded in 1952. It employs 501 to 1,000 people.
Where is NTT Group based?
NTT Group is headquartered in Tokyo, Japan, in the Asia region.
How does NTT Group make money?
Three revenue lines are on record. Enterprise IT and Managed Services are the primary driver. The others are managed Detection and Response (MDR) and data Center REIT.
Who are NTT Group's main competitors?
Direct peers on record are Expel, Sophos, Secureworks, eSentire, Arctic Wolf and ReliaQuest. Broad incumbents are Fujitsu, CrowdStrike and Palo Alto Networks. Trend Micro is listed as a regional player.
Does NTT Group have an API?
No public API is recorded for NTT Group.
What industry is NTT Group in?
Its primary akta.pro industry code is HDADADAG, Cloud Detection & Response (CDR). Its NAICS code is 561621 and its SIC code is 7370.