Installation Services - Find a freedom of information request

I would be grateful if you could kindly confirm / provide the following information relating to installation services:

1. Can you please confirm who is on the Council’s preferred contractor lists for the following activities:

a. Installation of street furniture

b. Installation of highways signage

c. Minor works / groundwork's

d. Street works

e. Landscaping works

If a list cannot be provided, please confirm the individual and department (name and job title) responsible and how we can potentially contact them to discuss further?

1. All of the work types identified in your request are undertaken by Balfour Beatty as part of Lincolnshire County Council's Highways Term Maintenance contract.