Sigma Pharmaceuticals plc has been established as a licensed wholesaler and distributor for over 25 years. The family-owned business was started in 1975 from a small community pharmacy in Watford and has since grown into one of the largest pharmaceutical distributors in the country, employing over 400 people, and servicing over 3000 pharmacies, 1000 hospitals and 600 dispensing doctors throughout the UK and Europe.