Name

Samjung Data Service

Legal name

삼정데이타서비스 주식회사 (Samjung Data Service Co., Ltd.)

Website

https://sds.co.kr

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

Samjung Data Service is a Korean IT infrastructure provider founded in 1992 offering SaaS enterprise email (Mailnara), groupware (DirectCloud), cloud hosting (Direct), bulk messaging (DirectSend), and electronic tax invoicing (DirectBill) to 30,000+ Korean enterprises, and reselling Microsoft 365 as Korea's sole CSP and Gold Partner.

Ownership category

akta.pro rank

Product category

Enterprise IT Infrastructure and Cloud Services

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Custom Computer Programming Services (541511)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Processing & Data Preparation (7374), Services-Prepackaged Software (7372)

akta.pro primary industry

Service Desk & ITSM Outsourcing (BPAEAMAF)

akta.pro secondary industries

Remote Monitoring & Management (RMM) Services (BPAEABAA), Employee Experience (EX) & Digital Experience Monitoring Support (BPAEAJAO), IT Knowledge Management & Service Desk Platforms (HDAEALAH)

Keywords

• Enterprise email hosting
• Cloud groupware services
• IT infrastructure hosting
• Enterprise messaging services
• Managed cloud hosting

Headquarters

HQ city

Gurog

HQ country

Philippines

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SaaS Business Email (Mailnara): Subscription-based SaaS enterprise email service with tiered plans for business email and groupware (MailnaraG). Recurring monthly/annual subscription revenue from Korean enterprise customers.
2. Cloud Business Solutions (DirectCloud): Cloud-based groupware, Microsoft 365/Office 365 resale (as CSP partner), and DirectBill electronic tax invoice services. Recurring subscription revenue from groupware and Microsoft licensing resale with consulting-driven upsell.
3. Messaging Services (DirectSend): Bulk SMS, LMS, MMS, and email messaging platform. Revenue based on message volume and API usage, with enterprise clients paying per-transaction or usage-based rates for mass marketing campaigns.
4. Cloud Hosting & Server Services (Direct): Server hosting, co-location, web hosting, and cloud hosting services. Shared, dedicated, and managed cloud hosting plans. Domain name registration and management services. Revenue from hosting subscriptions and domain registration/renewal fees.
5. Professional & Managed Services: Technical engineering support, server management services, security services (Firewall, Anti-Virus, Anti-Spam, IPS), and payment gateway integration. Security consulting and IT infrastructure consulting bundled with hosting and cloud services.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Samjung Data Service delivers enterprise IT infrastructure services to Korean businesses, including SaaS enterprise email (Mailnara), Microsoft Office-based groupware (Direct Cloud), cloud/server hosting and domain registration (Direct), bulk SMS/LMS/MMS/KakaoTalk messaging (DirectSend), and electronic tax invoicing (DirectBill). As Microsoft's only Cloud Solution Provider and Gold Partner in South Korea, it also resells Microsoft 365, Office 365, and related cloud productivity products to domestic enterprises.

Product overview

Samjung Data Service operates a portfolio of four core IT infrastructure service brands: Mailnara (enterprise email SaaS), Direct Cloud (groupware built on Microsoft Office technology), Direct (cloud hosting and IT infrastructure), DirectSend (bulk messaging for SMS/LMS/MMS/KakaoTalk), and DirectBill (electronic tax invoice). Additional offerings include Microsoft 365 resale via CSP partnership. The products share common infrastructure (IDC, domain registration, security services) and are accessible through unified management portals (Mydirect). The company also offers satellite brands including DirectSeller for open-market sellers.

Differentiator

Problem solved

Functional benefit

Brands

• Mailnara (메일나라): Enterprise email service (SaaS business email solution)
• DirectCloud (다이렉트클라우드)
• DirectBill (다이렉트빌)
• DirectSend (다이렉트센드)
• Direct (다이렉트)

Products and services

• Mailnara (메일나라) Enterprise Email SaaS Cloud-based enterprise email service operated by Samjung Data Service's IDC infrastructure for 20+ years. Provides responsive webmail, organizational address book, schedule sharing, bulletin boards, confidential/approval/internal mail, password cycle management, overseas IP blocking, and ML-based spam filtering. Targets Korean enterprises seeking GS-certified, secure business email.
• Direct Cloud (다이렉트클라우드) Groupware Cloud-based groupware built on Microsoft Office technology providing electronic approval, attendance management, project management, document management, schedule management, team sites, and SAP ERP/HRMS data integration. Used in 200+ countries with Outlook Calendar interworking. Targets Korean enterprises.
• Direct (다이렉트) Cloud Hosting and IT Infrastructure IT infrastructure hosting service offering shared hosting (web, mail, solution), dedicated hosting (server, colocation), and cloud hosting (managed cloud, DB cloud). Includes domain registration (.kr, .co.kr, .com, .net, .org). Operated across multi-IDC environment at KT Bundang 2 ICC and HOSTWAY 1 Bundang with patented virtualization clustering technology. Targets Korean businesses.
• DirectSend (다이렉트센드) Enterprise Messaging Bulk messaging solution integrating SMS (up to 90 bytes), LMS (90–2,000 bytes), MMS (1,000–2,000 bytes), KakaoTalk (via CJ Olive Networks), and bulk email. Supports API modules in multiple languages, TXT/Excel/external DB address import, scheduled/repeat delivery, detailed result reports, and survey features. Targets Korean enterprises for marketing and operational communications.
• DirectBill (다이렉트빌) Electronic Tax Invoice Digital electronic tax invoice solution optimized for enterprise workflow environments, supporting MS Office compatibility, API integration for external systems, and email-attachment approval for recipients without account registration. Includes Toss Payments gateway integration. Targets Korean enterprises needing automated tax invoicing.
• Microsoft 365 (Office 365) Resale via CSP Partnership Resold Microsoft 365 productivity suite including Business Basic, Business Standard, Business Premium, Copilot Business add-on, Teams Phone Standard, Power BI Pro, Power BI Premium Per User, Windows Server Standard/Datacenter, and SQL Server Standard/Enterprise. Provides Office apps, email, calendar, document management, collaboration, online conferencing, and Copilot AI features. Targets Korean enterprises.

Quantifiable outcome

• GS 1st Class Certification validates Mailnara Cloud v4.0 software quality and superiority against ISO international standards
• +1 more outcomes

Segments1 record

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability4 records

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Microsoft CorporationcoreChannel Partner/ Reseller/ Distributor · 1 September 2014Samjung Data Service is Korea's only Microsoft Cloud Solution Provider (CSP) and Gold Certified Partner. Provides Microsoft 365, Office 365, Teams, Power BI, and Windows Server licensing to Korean enterprises. Maintains Gold Partner status since 2014, offering CSP pricing and exclusive promotions including Microsoft 365 Copilot Business discounts.
• KT (Korea Telecom)coreTechnology or IntegrationPartnership with KT for IDC services. Hostway and KT ICC data centers in Bundang provide the infrastructure backbone for cloud hosting and colocation services. Multi-IDC environment ensures high availability and disaster recovery capabilities.
• HOSTWAYcoreTechnology or IntegrationHOSTWAY IDC facility in Bundang (Seongnam) is one of two primary data center locations. Provides colocation and managed hosting infrastructure services as part of Samjung's multi-IDC strategy.
• ICANN (Internet Corporation for Assigned Names and Numbers)coreTechnology or IntegrationSelected as official ICANN-accredited international domain registrar in 2007. Authorized to register .com, .net, .org and other global TLDs.
• KISA / Korea Internet & Security AgencycoreTechnology or IntegrationDesignated as official KR domain registrar by KISA in 2006. Also provides QuickDom (.kr) domain registration agency services. Supports KISA initiatives for spam prevention and information security.
• Korea University (고려대학교)minorStrategic or Co-development PartnerAcademic-industry cooperation agreement signed in 2007. Partnership program enterprise designation for collaboration in research and talent development.
• iNamez (아이네임즈)minorChannel Partner/ Reseller/ DistributorKR domain registration agency partner for .kr and related Korean country code domain registrations. Sub-registrar relationship for Korean domain services.

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Others

• CJ Olive Networks: CJ Olive Networks operates Kakao Bizmessage services and is also an integration partner of SDS's DirectSend messaging platform. Comparable in messaging distribution, Kakao channel integration, and bulk communication services for Korean enterprise marketing.

Direct peers

• NHN Cloud: Korean cloud and hosting provider offering comparable cloud hosting, managed services, and enterprise productivity tools to Korean SMB and enterprise customers. Directly competes with SDS's Direct hosting brand and overlapping messaging/email services.
• Gabia (hosting): Korean web hosting and domain registrar providing directly comparable shared hosting, dedicated hosting, and domain registration services to SDS's Direct brand. Competes for the same Korean SMB and enterprise hosting customers with overlapping self-serve online portals.
• Naver (Works): Naver Works is Korea's leading enterprise groupware and collaboration platform — directly competing with SDS's DirectCloud groupware and Mailnara email for the same Korean enterprise customers. Bundled with Naver's broader productivity ecosystem, it represents the most direct competitive threat in Korean SMB/mid-market.
• Cafe24: Major Korean e-commerce and cloud hosting platform competing with SDS's Direct hosting for hosting and managed infrastructure customers in Korea. Offers comparable server hosting, cloud, and infrastructure services to Korean SMB and enterprise segments.

Broad incumbents

• Microsoft: Parent vendor of the Microsoft 365, Office 365, Teams, Power BI, and Windows Server products that SDS resells as Korea's only CSP. Microsoft also competes directly through its own direct enterprise sales motion in Korea, representing the ultimate broad incumbent whose partner program defines SDS's resale economics.
• Google Workspace: Global cloud productivity suite competing directly with Mailnara enterprise email and DirectCloud groupware. Targets Korean enterprises seeking modern alternatives to Microsoft-centric stacks and represents a structural alternative for customers considering SDS's Microsoft-focused offerings.
• LG CNS: Large Korean IT services conglomerate offering enterprise cloud, managed services, and IT infrastructure consulting comparable to SDS's broader service portfolio. Competes for large Korean enterprise IT outsourcing and cloud transformation engagements.
• Amazon Web Services (AWS): Global hyperscale cloud provider competing with SDS's Direct hosting, DirectCloud, and Mailnara services. Korean enterprise customers increasingly choose AWS-native email (WorkMail) and infrastructure over SDS's hosting offerings, representing a structural alternative.
• KT Cloud: KT's enterprise cloud and hosting arm — KT is also SDS's data center partner (KT Bundang ICC). Competes broadly in Korean cloud hosting, managed services, and enterprise IT infrastructure while also serving as upstream infrastructure provider to SDS's operations.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/sdsbook
• Facebookfacebook.com/samjungdataservice
• LinkedInlinkedin.com/company/samjung-data-service-co-ltd-

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 Samjung Data Service