What is the phone number for jacobs support? Toll Free Numbers for Jacobs Global Service Desk Support. Country. Toll Free Number. United States. 18669922411. United Kingdom. 08081782579. Australia. 1800835239. Where is jacobs registered in the uk? for JACOBS U.K. LIMITED (02594504) Registered office address. Cottons Centre, Cottons Lane, London, United Kingdom, SE1 2QG. Company status. Active.What is jabscos e mail address? Our e-mail address is: [email protected] For UK Trade technical support for Jabsco, Rule & Flojet contact: If you wish to return a product you bought from us please follow this process. Our office hours are 0830 to 1700 (UK standard time) Monday to Friday.How many employees does jacobs group have? The company is publicly traded as a Fortune 500 company, and as of October 2016 had 50,000 employees globally. Jacobs has more than 250 offices in North America, South America, Europe, the Middle East, Australia, Africa, and Asia.