626e402c_ois_Employers___Tax_Foundation__Industry
70% (5th largest share) 54% (4th largest share) [Economic Position of Industry] This is Illinois’ largest sector.[31] Both residential and commercial real estate have already seen weak growth but are finally on the path to recovery.[32] This trend has resulted in lower employment in housing construction.[33] Despite the fact that employment related to housing is no longer decreasing, its growth is lower than the U.S. average and the Midwest average.[34] The story is similar for commercial real estate, though the sector is forecasted to improve, albeit at a lower-than-average rate.[35] [Industry] 
Real Estate and Rental and Leasing Services
Moving to a Progressive Income Tax Would Increase Taxes on the Majority of Illinois Employers | Tax Foundation
Industry