Companies / Industry directory / Communications & Media Services-Advertising Agencies 4 stocks in Communications & Media · SIC 7311. Company snapshot 2026-10-09 · Calculated market cap as of 2026-10-02 · USD Find a company or ticker Stocks in Services-Advertising Agencies. Sorted by market cap, largest first. Ticker Company Market Cap Revenue (TTM) Net Income (TTM) OMC OMNICOM GROUP INC. $20.49B $19.82BTTM ended 2026-03-31 $63.00MTTM ended 2026-03-31 STGW Stagwell Inc $2.07B $3.04BTTM ended 2026-06-30 $16.19MTTM ended 2026-06-30 GRPN Groupon, Inc. $794.19M $497.41MTTM ended 2026-06-30 −$125.65MTTM ended 2026-06-30 SWAG Stran & Company, Inc. $24.79M $119.53MTTM ended 2026-06-30 $56.00KTTM ended 2026-06-30 No matching companies.