TDT
TDT AG is a family-owned German manufacturer, founded in 1978, of Linux-based VPN routers, gateways, firewalls, and BOS mobile routers, serving German enterprises and public-safety authorities via distributors and certified resellers, differentiated by full-operation BSI ISO 27001 certification.
- Company typePrivate
- Founded1978
- HeadquartersEssenbach, Germany
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What TDT does
TDT AG is a privately-held, family-owned German manufacturer of professional telecommunications equipment, founded in 1978 and headquartered in Essenbach, Bavaria. The company designs and builds Linux-based VPN routers, VPN gateways, firewalls, and BOS (public safety) mobile routers, complemented by subscription services including SmartConnect fixed-IP relay, Checkmk-based network monitoring, and tiered Active Premium Service support packages. Its customer base spans businesses and public authorities, with a particularly differentiated position in the German BOS (police, fire, emergency services) segment through E1-approved, MultiSIM-enabled mobile routers.
The technology stack is proprietary and deep: modular Linux firmware, integrated Checkmk monitoring agents on all devices, simultaneous multi-protocol VPN (OpenVPN, IPsec, L2TP, WireGuard) with hardware crypto acceleration, TPM-based key protection, Suricata-based IDPS, and zone-based stateful firewall. TDT was the first router manufacturer worldwide to receive BSI IT-Grundschutz certification (ISO 27001) in 2017, re-certified in 2022 and 2025, covering the entire operation from development through customer networks. Approximately 90% of suppliers are regional (Bavarian), supporting a short, quality-driven supply chain.
Revenue is generated primarily through hardware sales (with 2–3 year warranties) routed via a two-tier distribution network of four named regional distributors (Michael Telecom AG, Herweck, pilot Computerhandels, SYSTEAM) and certified specialist dealers, supplemented by a growing book of recurring revenue from Active Premium Service subscriptions, SmartConnect relay services, managed network monitoring, and fee-based Expert Support (€94.01 per half hour). The company employs 11–50 people and is led by a second-generation board (CFO Dr. Sascha Priester, CTO Hubert Mirlach since 1987). Revenue figures are not publicly disclosed.
TDT firmographics
Firmographics- Name
- TDT
- Legal name
- TDT AG
- Website
- https://tdt.de
- Company type
- Private
- Founded year
- 1978
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- TDT AG is a family-owned German manufacturer, founded in 1978, of Linux-based VPN routers, gateways, firewalls, and BOS mobile routers, serving German enterprises and public-safety authorities via distributors and certified resellers, differentiated by full-operation BSI ISO 27001 certification.
- Ownership category
- akta.pro rank
TDT industry classification
Industry- Product category
- Network Security Hardware
- NAICS
- Other Communications Equipment Manufacturing (33429)
- SIC
- Computer Communications Equipment (3576)
- akta.pro primary industry
- Industrial/OT Private Connectivity (Factory, Mining, Ports) (HDAIAGAD)
Keywords
Where TDT is headquartered
LocationHeadquarters
- HQ city
- Essenbach
- HQ country
- Germany
- HQ region
- Europe
Offices2 records
Markets served
TDT business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales
Revenue model
- Hardware Sales: Sale of telecommunications equipment including VPN routers, VPN gateways, firewalls, and BOS (authorities and organisations with security tasks) products. Devices are sold with a 2-year or 3-year bring-in manufacturer's warranty.
- Fee-based Technical Support: Fee-based support orders for issues not covered by free basic support. Charged at €94.01 incl. VAT per half hour or part thereof. Support covers configuration, error analysis, remote access, and project assistance.
- Active Premium Service Agreements: Tiered service and support packages providing extended service hours, 24/7 on-call service, TLS/SSL certificate management, SmartConnect services, pre-exchange service, and other premium support options. Annual or ongoing subscription-style contracts.
- SmartConnect Service: Subscription-based service providing connection-independent fixed IP access. SmartConnect Public provides one permanent public IP address with dedicated server instance. SmartConnect Private adds VPN tunnel encryption. Sold as add-on to hardware.
- TDT Network Monitoring (Checkmk): Professional monitoring service using Checkmk. Involves setup, integration, and ongoing monitoring services. Customers can submit enquiries for this service.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Fee-based Support Order |
| Subscription | Annual | TDT Service Agreement Basic |
| Subscription | Annual | Extended Service Hours Add-on |
| Subscription | Annual | 24/7 On-Call Service Add-on |
| Subscription | Annual | TLS/SSL Certificate Management |
| Subscription | Annual | Pre-Exchange Service |
Go-to-market motion2 records
Distribution channels6 records
Marketing channels5 records
TDT product offering
Product offeringCore offering
TDT AG manufactures professional telecommunications equipment including VPN routers (NG2000, FG series), central-site VPN gateways (VK5000), desktop firewalls (FW2000), and BOS/public safety mobile routers (G3000-ELW 5G). Hardware is paired with proprietary Linux-based firmware, SmartConnect fixed-IP relay service, and Checkmk-based network monitoring for secure enterprise and public-sector network connectivity.
Product overview
TDT AG is a German manufacturer of professional telecommunications equipment offering a portfolio of VPN routers, VPN gateways, firewalls, and BOS (authorities and organisations with security tasks) products. The core product lines include the NG2000 series (VPN routers with DSL/WAN interfaces in D and DW variants, available with 4G and 5G mobile connectivity), FG series (VPN routers with fiber connectivity), VK5000 Central Site VPN Gateway, and FW2000 desktop firewall. The NG2000-D/DW series provides models with 4G/5G cellular options, while the FG series includes FG2000 and FG4000 routers. BOS-specific products include the G3000-ELW 5G mobile router and VA1100-ELW VoIP telephone system. These hardware products are complemented by SmartConnect services (fixed IP connectivity), Network Monitoring (Checkmk-based), Expert Support, and Active Premium Service packages.
Differentiator
Problem solved
Functional benefit
Products and services
- NG2000-D VPN Router
Quantifiable outcome
- 5G technology enables speeds up to 7 times faster than 4G on G3000-ELW 5G router
- +2 more outcomes
Companies that use TDT
Customer profileSegments3 records
Ideal customer profiles2 records
TDT technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature8 records
TDT partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core and minor.
- SAFENet (Strategische Allianz für Sichere Netzwerke)coreTDT AG is a partner in the SAFENet (Strategic Alliance for Secure Networks), a strategic alliance focused on secure network infrastructure. SAFENet brings together companies and organisations committed to advancing cybersecurity in network communications.
- Michael Telecom AGcoreAuthorised distributor and reseller of TDT products. Located in Bohmte, Germany. Contact: +49 5471 806-0, [email protected], www.michael-telecom.de
- Herweck AktiengesellschaftcoreAuthorised distributor and reseller of TDT products. Located in St. Ingbert-Rohrbach, Germany. Contact: +49 6894 3883-0, [email protected], www.herweck.de
- pilot Computerhandels GmbHminorAuthorised distributor and reseller of TDT products. Located in Seevetal-Meckelfeld, Germany. Contact: +49 40 709737-0, [email protected], www.pilot-computer.de
- SYSTEAM GmbHminorAuthorised distributor and reseller of TDT products. Located in Ebensfeld, Germany. Contact: +49 9573 9221-0, [email protected], www.systeam.biz
Scale indicators5 records
Recent moves6 records
Expansion highlights5 records
TDT competitors and assessment
Company assessmentBroad incumbents
- Fortinet: Global leader in network security appliances (FortiGate firewalls with integrated VPN, SD-WAN). Competes with TDT's firewall and VPN router portfolio at the enterprise/mid-market layer with much broader feature set and global reach.
- Cradlepoint (Ericsson): Now part of Ericsson, Cradlepoint is a leading vendor of 4G/5G wireless edge routers, gateways, and NetCloud-managed services for enterprise and public safety. Comparable in cellular edge routing and BOS-adjacent use cases, with significantly broader scale and channel reach.
- Cisco Systems: Global networking incumbent whose ISR/CSR branch routers, Meraki SD-WAN, and security products span every layer TDT competes in. Relevant incumbent peer given enterprise and government customer overlap.
- Juniper Networks (HPE): Enterprise routing and security vendor (now HPE-owned) with Mist AIOps and SRX firewalls. Comparable as a broad networking incumbent; relevant to enterprise branch routing refresh cycles that compete with TDT's installed base.
- Sophos: Cybersecurity vendor with a strong XG/XGS firewall and SD-WAN appliance line plus managed security services. Direct overlap with TDT's firewall/VPN appliance positioning in mid-market and channel-led GTM.
Emerging players
- Zscaler: Cloud-native SASE/SSE platform displacing branch VPN hardware with ZIA/ZPA cloud-delivered services. Indirect peer: represents the cloud-delivered architecture that may erode demand for on-prem VPN router refreshes — strategic watch for TDT's product roadmap.
- Peplink / Pepwave (Plover Bay Technologies): Hong Kong-headquartered vendor of SD-WAN routers with a strong focus on multi-cellular, ruggedized, mobile/transportation routers (SpeedFusion, Multi-SIM). Comparable in cellular VPN/routing capability relevant to TDT's BOS G3000-ELW line.
Direct peers
- Funkwerk (bintec elmeg): German-based manufacturer of VPN routers, gateways and professional communication systems under the bintec elmeg brand. Comparable product mix (enterprise VPN routers, gateways) and comparable DACH-centric, regulated-buyer focus.
- Securepoint: German vendor of UTM firewalls, VPN gateways and network security appliances with a strong German SMB/Mittelstand channel. Overlaps with TDT in firewall + VPN appliance category and German security-certification positioning.
- LANCOM Systems: German manufacturer of professional VPN routers, SD-WAN gateways, and firewalls headquartered in Würselen. Most direct comparable to TDT: similar VPN router portfolio, German 'IT Security made in Germany' positioning, BSI-relevant certifications, enterprise/Mittelstand and public-sector GTM.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
TDT social profiles
Digital presenceTDT compliance and trust
Trust signalCompliance7 records
TDT financial estimates
Financial estimateRevenue estimate
Valuation estimate
TDT leadership team
Management profileNumber of profiles
Profiles1 record
TDT funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
TDT M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about TDT
What does TDT do?
TDT AG manufactures professional telecommunications equipment including VPN routers (NG2000, FG series), central-site VPN gateways (VK5000), desktop firewalls (FW2000), and BOS/public safety mobile routers (G3000-ELW 5G). Hardware is paired with proprietary Linux-based firmware, SmartConnect fixed-IP relay service, and Checkmk-based network monitoring for secure enterprise and public-sector network connectivity.
Is TDT a public or private company?
TDT is a private company. It is classified as family owned and is currently operating.
When was TDT founded?
TDT was founded in 1978. It employs 11 to 50 people.
Where is TDT based?
TDT is headquartered in Essenbach, Germany, in the Europe region.
How does TDT make money?
Five revenue lines are on record. Hardware Sales are the primary driver. The others are fee-based Technical Support, active Premium Service Agreements, smartConnect Service and TDT Network Monitoring (Checkmk).
Who are TDT's main competitors?
Broad incumbents on record are Fortinet, Cradlepoint (Ericsson), Cisco Systems, Juniper Networks (HPE) and Sophos. Emerging players are Zscaler and Peplink / Pepwave (Plover Bay Technologies). Direct peers are Funkwerk (bintec elmeg), Securepoint and LANCOM Systems.
Does TDT have an API?
No public API is recorded for TDT.
What industry is TDT in?
TDT's product category is Network Security Hardware. Its primary akta.pro industry code is HDAIAGAD, Industrial/OT Private Connectivity (Factory, Mining, Ports). Its NAICS code is 33429 and its SIC code is 3576.