Hi Jo, we had the same need – we are a SME and only need very ad-hoc help. I used to work in the NHS and we used this provider which I always found helpful but found out they also provide OH services for private companies. It is based in Bristol but they do virtual / telephone appts. Seemed reasonable rates based on others I researched – you send the report, they assess and assign either a MSK specialist, OH nurse specialist or OH doctor depending on severity. I found the report helpful, it answered all our questions and the employee also had a good experience.
It was with Avon Partnership OH service. https://www.apohs.nhs.uk/services/
Steph