NBS Source


Integrated Access Control Solutions

+44 (0)1202 723535 Website

TDSi is one of the UK's leading manufacturers of integrated access control systems that protect and secure your buildings, assets and people. We offer peace of mind through our extensive range of readers, controllers and software systems available around the world.

TDSi has a wealth of experience in the development, manufacturing and delivery of innovative access control solutions. Since the company’s formation over 30 years ago, we have successfully supplied systems to over 100,000 installations globally.

Whilst our reputation is founded in Access Control, many of our products are developed to integrate seamlessly with other security and building management systems. With every development that we bring to market, we aim to provide the systems and support required by our customers to keep pace with today’s needs and tomorrow’s challenges.

TDSi are specialists in Access Control, offering a range of superior products that not only answer the security challenges of the 21st century but delivers peace of mind to those who trust in our expertise and experience.

Trade names

  • DIGIgarde
  • eXcel
  • eXguard
  • ExguardPRO
  • eXpert
  • Exprox
  • eXsmart
  • Flexicard
  • Microcard
  • MicroGarde
  • Microlock
  • Micropass
  • Optica
  • PalmGarde
  • PanelGarde
  • Sologarde
  • UltraGuard
  • Access Control
  • Security
  • Integrated Access Control
  • Card Access Control Systems
  • Access Control Units
  • Proximity Card Readers
  • Mifare
  • Desfire
  • Proximity
  • Gardis