Since the company registration three events have happened. The last three records are Appointment of Mr Frode Iverson as a director on 22 March 2017; Current accounting period extended from 31 January 2018 to 31 March 2018; Incorporation Statement of capital on 2017-01-19 GBP 100 MODEL ARTICLES ‐ Model articles adopted . The most likely internet sites of TETHYSEN LIMITED are www.tethysen.co.uk, and www.tethysen.co.uk. The predicted number of employees is 1 to 10. The company’s age is eight years and ten months. Tethysen Limited is a Private Limited Company. The company registration number is 10571580. Tethysen Limited has been working since 19 January 2017. The present status of the company is Active. The registered address of Tethysen Limited is Suite 14 St Johns Street Colchester Essex United Kingdom Co2 7nn. . AITKEN, Roseanne is a Director of the company. IVERSON, Frode is a Director of the company. The company operates in "Other human health activities".