What TDC does

TDC Erhverv A/S is the business-to-business division of Danish telecommunications group Nuuday A/S, providing connectivity, unified communications, managed IT, and cybersecurity services to over 50,000 Danish SMBs, enterprises, and public institutions. Founded over 135 years ago and headquartered in Copenhagen, the company operates across four product pillars: Telefoni & Omstilling (telephony and switchboard, including the TDC Erhverv One+ unified platform, Teams Telefoni, and the Interact contact center), Internet (fiber, 5G fixed wireless, mobile broadband, and IoT connectivity on TDC NET's nationwide 5G network covering 100% of Denmark), IT-sikkerhed (managed firewall, SOC, Cyber Alert, Cyber Threat Intelligence, CloudKey, and NIS2 readiness), and Samarbejdsløsninger (Cisco Webex, Microsoft 365 integration, video rooms, and device lifecycle services including Samsung Enterprise Edition and MDM).

The company's technology stack is anchored by its proprietary mobile network infrastructure (TDC NET), certified by Teknologisk Institut as Denmark's best mobile network for 11 consecutive years, combined with cloud-delivered communications and security platforms and certified integrations with Microsoft Teams, Cisco Webex, and Samsung Knox. AI features are embedded across the portfolio through Speech Analytics, network anomaly detection, customer-support chatbots, and a sovereign-AI partnership with Gefion X, alongside resale of Samsung Galaxy AI for Business on managed devices.

TDC Erhverv operates a subscription-based revenue model spanning mobile and fixed-line subscriptions, recurring managed security and UC services, hardware sales, and device lifecycle management, supported by ISO 27001 certification and GDPR-compliant data handling. Go-to-market combines self-service digital channels for SMBs, inside sales with extended phone/chat coverage, dedicated enterprise field sales with specialist account management, and certified channel partners (Microsoft, Cisco). Strategic priorities are visibly shifting toward cybersecurity services, NIS2 compliance, AI infrastructure, and ecosystem partnerships with global technology vendors.

Name

TDC

Legal name

TDC Erhverv A/S

Website

https://tdc.dk

Company type

Private

Founded year

1879

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

TDC Erhverv is the B2B arm of Danish telecom group Nuuday, serving 50,000+ Danish SMBs, enterprises, and public institutions with mobile, fixed-line, unified communications, managed cybersecurity, and AI infrastructure on TDC NET's nationwide 5G network.

Ownership category

akta.pro rank

Product category

Business Telecommunications & IT Services

NAICS

Wired and Wireless Telecommunications Carriers (except Satellite) (51711), Wireless Telecommunications Carriers (except Satellite) (517112), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Communications Services, Nec (4899), Services-Computer Integrated Systems Design (7373), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Network Security Services (Firewall/VPN/ZTNA/SASE Integration) (BPAEAEAG)

akta.pro secondary industry

End-User Computing Outsourcing (EUC / Desktop Services) (BPAEAMAE)

Keywords

• Business telecommunications
• IT security services
• Unified communications
• Managed cloud services
• Mobile network services

Headquarters

HQ city

Capital

HQ country

Philippines

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Mobile Subscriptions: Recurring subscription revenue from mobile phone plans with various data packages, including One+, One, and Scale tiers. Includes 5G connectivity with nationwide coverage.
2. Internet and Broadband Services: Fixed and mobile broadband subscriptions for businesses including fiber, DSL, coax, and 5G internet solutions.
3. IT Security Services: Managed security services including firewall, VPN, security operations center, threat intelligence, and incident response.
4. Unified Communications: Collaboration solutions including Teams Telefoni, Webex integration, Interact contact center, and One+ unified telephony.
5. Hardware Sales: Mobile devices, tablets, and equipment sales including Samsung Galaxy devices with enterprise management capabilities.
6. Device Management Services: Managed device lifecycle including MDM (Mobile Device Management), BuyBack programs, insurance, and enrollment services.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

TDC Erhverv provides Danish businesses with a complete telecommunications and IT services portfolio built on its own nationwide 5G mobile network. Its offering spans mobile subscriptions, fiber and fixed broadband, unified communications and contact center platforms, managed IT security (firewall, SOC, threat intelligence, incident response), and enterprise collaboration tools integrated with Microsoft Teams and Cisco Webex. Services are sold to both SMBs through self-service channels and to large enterprises and public institutions via dedicated account teams.

Product overview

TDC Erhverv is a telecommunications and IT services provider for Danish businesses, offering a comprehensive portfolio of products organized into four main categories: 1) Telefoni & Omstilling (Telephony & Switchboard) - including TDC Erhverv One+ as the core unified communications platform combining telephony, collaboration tools and switchboard; Microsoft Teams Telefoni for Microsoft-centric environments; TDC Erhverv Interact for call centers; and various mobile subscriptions on Denmark's best 5G network. 2) Internet - including fiber, 5G internet, mobile broadband, and IoT connectivity. 3) IT-sikkerhed (IT Security) - including Smart Security (managed firewall), Cyber Alert (real-time threat monitoring), Security Insights (automated cloud security), Security Operations Center (24/7 monitoring), Cyber Threat Intelligence, CloudKey, Smart VPN, Smart SD-WAN, Internetfilter, Incident Response, NIS2 compliance, and Managed Endpoint & Identity Protection. 4) Samarbejdsløsninger (Collaboration Solutions) - including Cisco Webex, Videorooms, and BuyBack/device lifecycle management services. The company serves both SMB and enterprise segments with a combination of core platforms and modular add-on services.

Differentiator

Problem solved

Functional benefit

Brands

• TDC Erhverv One+: Unified telecommunications solution combining telephony, collaboration tools, and switching features.
• TDC Erhverv Interact
• TDC Erhverv Teams Telefoni
• TDC Erhverv Security Insights
• TDC Erhverv Cyber Alert
• TDC Erhverv 5G+
• TDC Erhverv Smart Security
• TDC Erhverv CloudKey
• TDC Erhverv SOC
• TDC Erhverv Scale
• TDC Erhverv Tools
• TDC Erhverv Select
• TDC Erhverv Ready
• TDC Erhverv BuyBack
• TDC Erhverv Assist
• TDC Erhverv Managed Endpoint & Identity Protection (MEIP)

Products and services

• TDC Erhverv One+

Quantifiable outcome

• 11 consecutive years as Denmark's best mobile network according to Teknologisk Institut measurements
• +2 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability9 records

Feature7 records

Partnerships

Seven partnerships are on record, tiered core, major and minor.

• MicrosoftcoreTechnology or IntegrationCertified Microsoft partner offering Microsoft 365, Teams, Copilot, Azure, and Security solutions. Provides TDC Erhverv Teams Telefoni integrating telecommunications with Microsoft Teams platform.
• CiscocoreTechnology or IntegrationPartnership for Cisco Webex collaboration tools integrated with TDC telephony. Also includes Cisco-based collaboration analysis through Wilke partnership for research on collaboration tool usage.
• Gefion XcoreStrategic or Co-development PartnerAI partnership providing sovereign AI computing power on Danish soil. Offers full data sovereignty for businesses using AI services, delivered securely and scalably by TDC Erhverv.
• SamsungmajorTechnology or IntegrationEnterprise Edition device partnership offering Samsung Galaxy S26 devices with Knox security platform, Galaxy AI for Business, and enterprise management capabilities. Includes MDM integration.
• IpsosminorStrategic or Co-development PartnerAnalysis partnership for annual surveys on Danish businesses' digital preparedness and cybersecurity readiness, conducted for TDC Erhverv research reports.
• BørsenminorGTM or Marketing PartnerMedia partnership for the 'Ledelsen Hacked' podcast series, making cybersecurity topics accessible to business leadership and board members.
• Nuuday A/ScoreOthersParent company (CVR 40075291) that determines purposes for personal data processing and owns TDC Erhverv as part of the Nuuday group.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Others

• TDC NET: TDC NET operates the wholesale mobile and fixed network infrastructure that TDC Erhverv uses to deliver services. Not a commercial competitor to TDC Erhverv but a related-party infrastructure provider whose terms directly shape TDC Erhverv's gross margin.
• Nuuday A/S: Nuuday A/S is TDC Erhverv's parent company and owns overlapping consumer and B2B brands such as YouSee. Not a market competitor in the strict sense but the corporate parent that defines TDC Erhverv's strategy, capex, and capital allocation.

Broad incumbents

• Orange Business Services: Orange Business Services is a large European incumbent offering enterprise connectivity, UC, managed security, and IoT solutions across multiple geographies. Comparable on enterprise managed services and security but operates at much larger scale and broader geographic footprint.
• Verizon Business: Verizon Business is a global incumbent offering enterprise connectivity, managed network services, security, and UC. Comparable on enterprise telecom and managed services but at significantly larger scale and with a different geographic footprint than TDC Erhverv.
• Deutsche Telekom / T-Systems: T-Systems is the enterprise ICT arm of Deutsche Telekom, providing managed connectivity, cloud, and security services to large European organizations. Comparable in managed services portfolio and enterprise customer focus, with broader European reach.

Direct peers

• Telenor Denmark: Telenor Denmark competes head-to-head with TDC Erhverv in mobile, broadband, and enterprise connectivity across SMB and public sector. Closely comparable on infrastructure ownership, customer segments, and product breadth in the Danish market.
• 3 Denmark (Hi3G Denmark): 3 Denmark competes in Danish business mobile and broadband with competitive pricing on 5G plans, targeting similar SMB and consumer customers. Comparable in mobile network operator business model but smaller in enterprise managed services.
• Telia Denmark: Telia Denmark is a direct competitor in Danish business mobile, fixed, and managed connectivity, serving similar SMB and enterprise customers with overlapping 5G, fiber, and UC offerings. Most directly comparable peer on geographic, customer, and product overlap.

Regional players

• Tele2 Sweden: Tele2 is a Nordic telecom operator offering mobile, fixed, and enterprise connectivity similar to TDC Erhverv, but focused primarily on Sweden and the Baltics rather than Denmark. Comparable business model and product mix across the Nordic region.
• BT Business: BT Business is the enterprise arm of BT Group, offering managed connectivity, UC, and security across the UK and globally. Comparable on enterprise telecom and managed services portfolio but primarily focused on the UK rather than Denmark.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/TDCErhvervDK
• LinkedInlinkedin.com/company/tdcerhverv
• Instagraminstagram.com/tdc_erhverv

Compliance3 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 TDC