Using lambda unable to do join, groupby and where in EF Core

await _entities.Company.Join(_entities.Employee,      

                        com => com.Company_id,   

                        emp => emp.Company_id,   

                        (com, emp) => new SearchCompany    

                        {                              

                          companyID = com.Company_id,  

                          industryType = com.industry_id,    

                          company = com.Company_name,      

                          location = com.City,    

                          contacts = emp.Employee_phone        

                         })                             

                      .Where(input => input.company == companyName)

                    .GroupBy(c => new { c.companyID, c.industryType, c.company, c.location })  

                     .ToListAsync();