About Us

We are a manufacturer specialising in the production of sustainted release trace element and vitamin ruminant boluses. Our product was conceived and eventually crafted as a result of a decade of research and development by the late Dr. Norman Ritchie and his colleagues at the University of Glasgow during the 1980’s. As a scholar and a lecturer in agricultural nutrition, Dr Ritchie believed the ruminant bolus could impact the lives of millions of farmers and cows worldwide. He started our manufacturing business in 1988. We have operated from our current premises in Clydebank since 1993. To this day these boluses, which are distributed by Agrimin Ltd, are considered to be the industry gold standard. The boluses optimise growth rates in the young, aid in easier calvings, help grow strong healthy calves, reduce the calving spread and optimise general condition in cattle. Active components include copper, cobalt, selenium, manganese, zinc, iodine, and vitamins A, D3 and E.

FAMI-QS Verified

At Rumbol, we care about quality. That's why all our boluses are Fami-QS certfied.

GMP Certified

Good Manufacturing Process Certification is internationally recognised. This assures proper design, monitoring, and control of our manufacturing process.

Industry Gold Standard

Our Quality Control team are meticulous. Every bolus is scrutinised.

Our History


Dr Norman Ritchie developed the ruminant bolus with his colleagues at University of Glasgow after a decade of research and development


Norman introduced the ruminant bolus to market and established Rumbol Products Ltd. The first boluses were produced in Norman's garage.


Rumbol Products needed to upscale production and we moved to our current premises in Clydebank


Elspeth Talbot assumed the position of Rumbol Managing Director following the retirement of Dr Norman Ritchie


A new state of the art factory expansion and office block were constructed for Rumbol Products Ltd

Location and Opening Hours

You can find us on the map below during our Opening Hours or phone 0141 951 4123:








09:00 → 17:00

09:00 → 17:00

09:00 → 17:00

09:00 → 17:00

09:00 → 17:00



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