top of page

About GTS MedOH

Physical Therapy Session

GTS MedOH was established in 2020 and is headed up by Liz Donaghy, who has over 15 years’ experience in the medical sales arena.  Having worked for several medical sales companies over the years, Liz has a wealth of knowledge and expertise which she has brought with her to the founding team. Sharing the GTS company ethos and passion for offering a quality product and first-class service delivery, GTS MedOH is growing from strength to strength.

Established in 1995 Geotech Systems Limited trading as “GTS” has offices in London & Aberdeen in the UK, Houston in the USA and The Hague in The Netherlands. Principally the Company is a professionals services company to the upstream oil and gas industry.

​GTS has clients worldwide, including Super-Major and Large Independent oil and gas companies and a reputation for dependable, high quality services delivered by a highly skilled workforce.

​GTS’ success and longevity in often difficult trading conditions is built around the establishment of strong relationships. Years of delivering quality service together with trust, honesty and integrity are keystones to the 25th anniversary marked in 2020.

​MedOH’s future is in great hands and we are excited to see how the business grows.

Here’s to the next 25 years!

Providing you with experience and knowledge

IMG_7811 (1).jpeg
Alin Farah 


Geotech Systems Ltd

Gareth Grundy 

General Manager,

Geotech Systems Ltd

PW Photo.jpg
Paul Whitty

Group Accountant & Company Secretary Geotech Systems Ltd

Liz Donaghy

Head of Sales & Services,


What people say about us...


Lee Thomas

Project Buyer, Alpine Racing Limited

"Using MedOH as one of our suppliers takes the pain away from sourcing in this category for me.

I know I can rely on them for quick delivery and sourcing support."


Pippa Crouch

Clinical Director, Global OHS

"Here at Global OHS we decided to start using MedOH for our vaccination and medical consumables during the pandemic due to national shortages. Despite this, MedOH fulfilled every order and within the expected timeframes; their professional approach, customer service and responsiveness have ensured me that they are now firmly embedded as our preferred supplier."


Lisa Cooke

Occupational Health Technician & Director, David Barber (OH) Limited

"Liz and her team have consistently offered us an outstanding service from orders of OH consumables to pharmaceutical supplies. Couldn't recommend Liz highly enough."

bottom of page