We are Pioneers.
We are ComTag.

Now proudly part of Herdwatch

Our Bovine TB and Blood Testing Software has been trusted by Vets in Ireland and the UK for over 25 years.


Vets Supported


Years of Experience


Market Leader

Important Announcement

We are delighted to announce that ComTag has been acquired by Herdwatch, the number 1 livestock management software platform in Ireland and the UK. By joining forces, we are creating a unique ecosystem where the Vet-Farmer relationship can blossom.

About us

At ComTag Technologies, we are pioneers of Bovine TB and Blood Testing Management Software for Veterinarians in Ireland/Northern Ireland. With our subsidiary, Lilac Technology/TB Master in Great Britain, we have been providing innovative solutions for the most demanding of environments - the farm yard!

With over 25 years of proven track record, we are proud to be the number one choice in Ireland and the UK, supporting over 1,000 Vets with a reliable and easy-to-use software for TB and Blood testing.

We work closely with Veterinary Practices and relevant Government bodies, ensuring seamless integration with AHCS (ROI), NIFAIS (NI), and SAM (GB). Stay tuned as we invest in our next-generation software to make it even better!

ComTag TB Testing Software
Lilac Technology TB Master

Are you a GB Vet or Practice?

Visit our expert sister company, Lilac Technology, renowned for their TB Master software in England and Wales.

Need a new licence key for your device(s)?

Rugged & always ready for action
We know how important TB Testing is to your business.

Our software, coupled with military-grade rugged devices, has been making TB and Blood Testing stress-free for Veterinary Practices and their customers for over 25 years.

Mud, rain, kicks and falls won't stop you doing your job, that's our promise. And with all-day battery, you won't need to plug in before your next farm visit.

No mobile coverage? No problem, our software works completely offline.

ComTag in action
We're evolving - Stay updated


Yes, our software is designed to be user-friendly and easy to navigate, making TB Testing management stress-free for vets.

Absolutely! Our software seamlessly integrates with AHCS (ROI), NIFAIS (NI), and SAM (GB) for easy download and upload of TB Tests and results.

Yes, we have a dedicated support team ready to assist you with any queries or issues you may have.

Definitely! Our software has a proven track record of over 25 years, making it a reliable and trusted solution for TB Testing management.

Of course! Contact us to schedule a demo and experience the power of our software firsthand.

Get in Touch

Our Contact Details