Ronhill are back on board for 2023 with an enhanced level of support as our official apparel sponsor. With 50 years of retrospect, Ronhill has benefited from the experiential learning and change that has occurred within running from its sporting roots, to a lifestyle and universal culture.

Our purpose now is to make a better future for todays runner by sustainably developing the elements of our past.


Alison Bradley Gallery

British artist Alison Bradley’s oil paintings, charcoal drawings, and prints capture the essence of  Eryri, North Wales, the Lake District, Yorkshire, and Chester – the majestic landscape of mountains and lakes, the loyal friendship of farmer and sheepdog, the sweeping coastal vistas.

Alison and Jon have supported us for a number of years by providing our special achievement  prize. More recently Jon has helped us with design and production of our race programme.




These are the guys who do our famous race Ts and also sponsor our junior races. All t-shirts are EarthPositive®, a 100% organic product, produced under the Global Organic Textile Standard (GOTS) and certified by The Control Union and The Soil Association. EarthPositive® is GM free.



Cread Cyf

Dylunio Cread Cyf. creates unique designs and images to promote a products and services. For the past 12 years, they have provided the designs for the off-line marketing material; posters & race guide.



Cwmni Da

Once again Marathon Eryri will be filmed by local TV company Cwmni Da,with a one-hour terrestrial TVhighlights package to be broadcast on Welsh TV channel S4C.


National Grid

National Grid deliver electricity and gas safely, reliably and efficiently to the customers and communities they serve – all while working towards a clean energy future.

National Grid have joined Marathon Eryri in 2023 and have given us much needed financial support which has enabled us to relocate our registration  location and continue to provide  support to groups within our local community.



Halliwell Jones

For the 11th year vehicle partner Halliwell Jones will be the driving force behind Marathon Eryri for 2023. They will be providing the race with Mini and BMW vehicles as lead and logistics cars.



Mountain Fuel

From roads, trails or mountains, two feet to two wheels and whatever your ability, Mountain Fuel is a balanced sports nutrition system designed to provide the body with the nutrition and energy to cope with any type of physical activity.



Pete Bland Sports

One of the oldest and most respected retailers in the running industry, Pete Bland Sports will once again be on site across the weekend to service all of your running needs!




YGC are a Gwynedd-based consultancy providing innovative and sustainable consulting for the built and natural environment. In 2023 YGC are proud sponsors of the Marathon Eryri Junior Races.




Sport Pictures Cymru

Our photography partner at Marathon Eryri is Sport Pictures Cymru, is a photography company based in Deiniolen, North Wales, and have been providing photographic services for sporting events across the UK since 2010.



Jones Bros.

Jones Bros. are an award-winning civil engineering company. Their expertise and forward-thinking approach has earned a reputation for undertaking construction work in some of the UK’s most demanding environments.

In 2023 Jone Bros. have kindly sponsored are brand-new marshal and volunteers hi-viz bibs.




Tenovus Cancer Care

Tenovus Cancer Care is the leading cancer charity in Wales and will be with you, every step of the way. Their support services mean that anyone affected by cancer can access treatment, advice and support whenever and wherever they need it most – all in the heart of your community.