DbQueries.cs

namespace MyMvcApplication
{
    class DbQueries : IDisposable
    {
        protected TimeShedulerEntities Context { get; private set; }
        
        public DbQueries()
        {
            this.Context = new TimeShedulerEntities();
        }
        
        public Branch[] LoadBranches(int companyId, int page, int limit, string search, string sort, string sortOrder)
        {
            var _branches = (from ct in this.Context.Branches
                             where ct.Title.Contains(search) || ct.Code.Contains(search)
                             select ct).OrderBy(c => c.Title).Skip((page - 1) * limit).Take(limit);
            return _branches.ToArray();
        }
        
        public void SaveChanges()
        {
            this.Context.SaveChanges();
        }
        
        public void Dispose()
        {
            this.Context.Dispose();
        }
    }
}

global.asax.cs

namespace MyMvcApplication
{
    public class MvcApplication : HttpApplication //this should already exist
    {
        protected void Application_BeginRequest(object sender, EventArgs e)
        {
            HttpContext.Current.Items["DbQueries"] = new DbQueries();
        }
        
        protected void Application_EndRequest(object sender, EventArgs e)
        {
            ((DbQueries)HttpContext.Current.Items["DbQuerues"]).Dispose();
        }
    }
}

HomeController.cs

namespace MyMvcApplication
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            DbQueries dbQueries = (DbQueries)HttpContext.Current.Items["DbQueries"];
            
            ViewBag.Branches = dbQueries.LoadBranches(...);
        
            return View();
        }
    }
}