InnerWorkings, Inc. provided preliminary unaudited earnings guidance for the fourth quarter and full year of 2017. For the quarter, the company's gross revenue is expected to be between $303 million and $308 million in the fourth quarter, an increase of 12 to 14% compared with $270.4 million in the fourth quarter of 2016. Gross profit (net revenue) is expected to be between $74 million and $75 million in the fourth quarter, an increase of 8 to 9% compared to $68.7 million in the same period of 2016. For the year, the company's gross revenue is expected to be between $1,138 million and $1,143 million in 2017, an increase of 4 to 5% compared with $1,090.7 million in 2016. Gross profit (net revenue) is expected to be between $281 million and $282 million, a 7% increase compared to $263.5 million in 2016. The company expects 2018 annual gross revenue to range between $1,195 million and $1,230 million. Non-GAAP adjusted EBITDA is expected to be between $74 million and $77 million in 2018. The company forecasts 2018 non-GAAP diluted earnings per share to be $0.56 to $0.59.