| 1 | Omnicom Group INC. | USA | New York City | 280 Park Ave Fl 31w | New York | 10017 | omnicomgroup.***** | 1944 | $15,689,100,000 | 74,900 | N/A | N/A | 55569 |
| 2 | The Interpublic Group Of Companies INC | USA | New York City | 909 3rd Ave | New York | 10022 | interpublic.***** | 1902 | $10,691,700,000 | 53,300 | N/A | N/A | 288828 |
| 3 | Wpp Group USA, INC. | USA | New York City | 3 World Trade Ctr Greenwich St | New York | 10007 | N/A | 2015 | $3,794,279,541 | 26,250 | N/A | N/A | 5821759 |
| 4 | Wpp Clapton Square, LLC | USA | New York City | Three World Trade Center 175 Greenwich St | New York | 10007 | wpp.***** | 2005 | $3,612,274,627 | 26,249 | N/A | N/A | N/A |
| 5 | Advantage Solutions INC. | USA | Clayton | 8001 Forsyth Blvd Ste 1025 | St. Louis County | 63105 | advantagesolutions.***** | 1987 | $3,566,324,000 | 69,000 | N/A | N/A | 7402146 |
| 6 | Stagwell INC. | USA | New York City | 1 World Trade Ctr Fl 65 | New York | 10007 | stagwellglobal.***** | 1980 | $2,841,216,000 | 11,857 | N/A | N/A | 4461668 |
| 7 | Lamar Media CORP. | USA | Baton Rouge | 5321 Corporate Blvd | East Baton Rouge | 70808 | lamar.***** | 1902 | $2,207,103,000 | 3,500 | N/A | N/A | 2211307 |
| 8 | Valassis Communications, INC. | USA | Livonia | 19975 Victor Pkwy | Wayne | 48152 | valassis.***** | 1986 | $2,040,684,593 | 6,400 | N/A | N/A | 2106071 |
| 9 | Omnicom Media Group Holdings INC. | USA | New York City | 195 Broadway Fl 8 | New York | 10007 | omnicommediagroup.***** | 2000 | $1,831,621,639 | 1,420 | N/A | N/A | 3291400 |
| 10 | Clear Channel Outdoor Holdings, INC. | USA | San Antonio | 4830 N Loop 1604 W Ste 111 | Bexar | 78249 | clearchanneloutdoor.***** | 1897 | $1,505,230,000 | 4,100 | N/A | N/A | 7331616 |
| 11 | Thryv, INC. | USA | Dfw Airport | 2200 W Airfield Dr | Tx | 75261 | thryv.***** | 1961 | $1,202,388,000 | 10,440 | N/A | N/A | 00516745 |
| 12 | Leo Burnett Company, INC. | USA | Chicago | 35 W Wacker Dr Fl 21 | Cook | 60601 | leoburnett.***** | 1999 | $989,730,288 | 2,000 | N/A | N/A | 3026660 |
| 13 | Grey Global Group LLC | USA | New York City | 200 5th Ave | New York | 10010 | grey.***** | 1969 | $762,688,159 | 10,200 | N/A | N/A | 3190506 |
| 14 | Stamps.com INC. | USA | El Segundo | 1990 E Grand Ave | Los Angeles | 90245 | stamps.***** | 1996 | $757,980,000 | 825 | N/A | N/A | 2844114 |
| 15 | American Chemical Society | USA | Washington | 1155 16th St Nw | District of Columbia | 20036 | acs.***** | 1876 | $739,501,994 | 2,000 | N/A | N/A | 530196572 |
| 16 | Mh Sub I, LLC | USA | El Segundo | 909 N Pacific Coast Hwy Fl 11 | Los Angeles | 90245 | carsdirect.***** | 2014 | $694,534,746 | 1,897 | N/A | N/A | 5372193 |
| 17 | Magnite, INC. | USA | New York City | 1250 Broadway Fl 15 | New York | 10001 | magnite.***** | 2007 | $668,170,000 | 905 | N/A | N/A | 4338545 |
| 18 | Integral AD Science Holding CORP. | USA | New York City | 12 E 49th St Fl 20 | New York | 10017 | N/A | 2009 | $530,101,000 | 902 | N/A | N/A | 6891627 |
| 19 | Groupon, INC. | USA | Chicago | 35 W Wacker Dr Fl 25 | Cook | 60601 | N/A | 2008 | $492,557,000 | 2,079 | N/A | N/A | 4489613 |
| 20 | Carat USA, INC. | USA | New York City | 150 E 42nd St | New York | 10017 | carat.***** | 2011 | $487,554,558 | 1,000 | N/A | N/A | 0938391 |
| 21 | Havas North America, INC. | USA | New York City | 200 Hudson St | New York | 10013 | nyc.***** | 2001 | $485,038,499 | 10,500 | N/A | N/A | 2092843 |
| 22 | Ziff Davis, LLC | USA | New York City | 114 5th Ave Fl 15 | New York | 10011 | ziffdavis.***** | 2010 | $484,885,374 | 1,760 | N/A | N/A | 20141760175 |
| 23 | Valassis Direct Mail, INC. | USA | San Antonio | 15955 la Cantera Pkwy | Bexar | 78256 | valassis.***** | 2007 | $484,557,675 | 3,800 | N/A | N/A | 0771820 |
| 24 | AD Populum, LLC | USA | Santa Monica | 1234 6th St Apt 410 | Los Angeles | 90401 | N/A | 2022 | $480,528,123 | 2,250 | N/A | N/A | 6988742 |
| 25 | Wunderman Thompson LLC | USA | New York City | 175 Greenwich St Fl 16 | New York | 10007 | wunderman.***** | 1980 | $480,289,653 | 1,390 | N/A | N/A | 133016052 |
| 26 | Das Holdings, INC. | USA | New York City | 437 Madison Ave | New York | 10022 | dasglobal.***** | 1999 | $473,209,439 | 482 | N/A | N/A | 2368945 |
| 27 | Horizon Media LLC | USA | New York City | 75 Varick St Ste 1404 | New York | 10013 | horizonmedia.***** | 1988 | $473,002,153 | 867 | N/A | N/A | 6335388 |
| 28 | Starcom Mediavest Group, INC. | USA | Chicago | 35 W Wacker Dr | Cook | 60601 | starcomww.***** | 1999 | $468,713,952 | 2,000 | N/A | N/A | 201884700 |
| 29 | Omd USA LLC | USA | New York City | 195 Broadway | New York | 10007 | omd.***** | 2007 | $461,648,347 | 1,420 | N/A | N/A | 3217999 |
| 30 | Bbdo Worldwide INC. | USA | New York City | 1285 Avenue of the Americas Fl 5 | New York | 10019 | bbdo.***** | 1928 | $453,904,206 | 10,000 | N/A | N/A | 130473120 |
| 31 | Group M Worldwide, LLC | USA | New York City | 175 Greenwich St Fl 16 | New York | 10007 | groupm.***** | 1999 | $448,430,060 | 630 | N/A | N/A | X00914747 |
| 32 | Monster Worldwide, INC. | USA | Weston | 133 Boston Post Rd | Middlesex | 02493 | monster.***** | 2016 | $448,159,624 | 3,700 | N/A | N/A | 3570005 |
| 33 | Extreme Reach, INC. | USA | Dedham | 3 Allied Dr Ste 130 | Norfolk | 02026 | extremereach.***** | 2007 | $445,858,698 | 1,000 | N/A | N/A | 4364734 |
| 34 | Fcb Worldwide, INC. | USA | New York City | 100 W 33rd St Fl 5 | New York | 10001 | fcb.***** | 2007 | $444,039,158 | 2,750 | N/A | N/A | 518225 |
| 35 | Mood Media LLC | USA | Austin | 2100 S Ih 35 Frontage Rd Ste 201 | Travis | 78704 | us.***** | 2021 | $437,928,118 | 1,468 | N/A | N/A | N/A |
| 36 | Vml, LLC | USA | Kansas City | 250 Nw Richards Rd Ste 255 | Jackson | 64116 | vml.***** | 1992 | $432,170,683 | 15,000 | N/A | N/A | LC001561780 |
| 37 | Young & Rubicam LLC | USA | New York City | 175 Greenwich St Fl 28 | New York | 10007 | vmlyr.***** | 1923 | $427,839,290 | 15,000 | N/A | N/A | 2674992 |
| 38 | Essencemediacom LLC | USA | New York City | 175 Greenwich St Fl 16 | New York | 10007 | mediacomusa.***** | 1997 | $426,556,498 | 430 | N/A | N/A | 2709847 |
| 39 | Mccann-Erickson USA, INC. | USA | New York City | 622 3rd Ave Fl 3 | New York | 10017 | mccannny.***** | 1964 | $410,565,544 | 1,700 | N/A | N/A | N/A |
| 40 | Reachlocal, INC. | USA | Woodland Hills | 21700 Oxnard St Ste 1600 | Los Angeles | 91367 | reachlocal.***** | 2016 | $398,012,919 | 1,300 | N/A | N/A | 3695240 |
| 41 | Mindshare USA, LLC | USA | New York City | 175 Greenwich St Fl 16 | New York | 10007 | mindshareworld.***** | 2003 | $382,555,759 | 630 | N/A | N/A | N/A |
| 42 | Cbs Interactive INC. | USA | San Francisco | 680 Folsom St | San Francisco | 94107 | cbsinteractive.***** | 2008 | $382,125,275 | 2,705 | N/A | N/A | 2318920 |
| 43 | Wpp Montagu Square LLC | USA | New York City | 636 11th Ave | New York | 10036 | ogilvy.***** | 2008 | $374,940,913 | 18,000 | N/A | N/A | 132555496 |
| 44 | Zenith Media Services, INC. | USA | New York City | 375 Hudson St | New York | 10014 | zenithcleaners.***** | 2016 | $371,919,179 | 800 | N/A | N/A | 2348620 |
| 45 | Ddb Worldwide Communications Group LLC | USA | New York City | 195 Broadway Fl 7 | New York | 10007 | ddb.***** | 2019 | $299,642,036 | 8,833 | N/A | N/A | 7777397 |
| 46 | Quotient Technology INC. | USA | Jersey City | 545 Washington Blvd | Hudson | 07310 | quotient.***** | 2023 | $288,766,000 | 1,163 | N/A | N/A | 4607217 |
| 47 | Starcom Worldwide, INC. | USA | Chicago | 35 W Wacker Dr | Cook | 60601 | starcomww.***** | 2004 | $281,939,519 | 2,000 | N/A | N/A | 5214350 |
| 48 | Project Worldwide, INC. | USA | Auburn Hills | 1914 Taylor Pt | Oakland | 48326 | project.***** | 2014 | $281,931,324 | 1,700 | N/A | N/A | N/A |
| 49 | The Segerdahl LLC | USA | Wheeling | 1351 Wheeling Rd | Cook | 60090 | sg360.***** | 1956 | $272,420,279 | 800 | N/A | N/A | 35804072 |
| 50 | Fluent, INC. | USA | New York City | 1 N End Ave Fl 9 | New York | 10282 | fluentco.***** | 2001 | $254,623,000 | 210 | N/A | N/A | 5713842 |
| 51 | Mediabrands Worldwide, INC. | USA | New York City | 100 W 33rd St Fl 3 | New York | 10001 | mbww.***** | 1994 | $247,579,643 | 1,300 | N/A | N/A | 0606900 |
| 52 | National Cinemedia, INC. | USA | Centennial | 6300 S Syracuse Way Ste 300 | Arapahoe | 80111 | ncm.***** | 2007 | $240,800,000 | 254 | N/A | N/A | 4230918 |
| 53 | Clear Channel Outdoor, LLC | USA | San Antonio | 4830 N Loop 1604 W Ste 111 | Bexar | 78249 | clearchanneloutdoor.***** | 1995 | $236,212,284 | 1,232 | N/A | N/A | 2533910 |
| 54 | Crossmark, INC. | USA | Lewisville | 1921 E State Highway 121 Ste 100 | Waller | 75056 | N/A | 2024 | $230,267,204 | 10,000 | N/A | N/A | 752670784 |
| 55 | Havas Media Group USA LLC | USA | New York City | 200 Hudson St Fl 3 | New York | 10013 | havasmedia.***** | 2006 | $199,051,600 | 382 | N/A | N/A | 2203317 |
| 56 | Saatchi & Saatchi North America, LLC. | USA | New York City | 375 Hudson St | New York | 10014 | wearesaatchi.***** | 2016 | $198,621,134 | 310 | N/A | N/A | 2089017 |
| 57 | Hsc Acquisition, LLC | USA | Tenafly | 24 W Railroad Ave | Bergen | 07670 | N/A | 2010 | $190,000,000 | 320 | N/A | N/A | 4773656 |
| 58 | Harte Hanks, INC. | USA | Chelmsford | 1 Executive Dr Ste 303 | Middlesex | 01824 | hartehanks.***** | 1920 | $185,242,000 | 1,715 | N/A | N/A | 0762402 |
| 59 | Zimmerman Advertising LLC | USA | Fort Lauderdale | 6600 N Andrews Ave Ste 200 | Broward | 33309 | zadv.***** | 2009 | $184,764,806 | 1,100 | N/A | N/A | H88014 |
| 60 | Pitney Bowes Presort Services, INC. | USA | Omaha | 10110 I St | Douglas | 68127 | pitneybowes.***** | 2002 | $183,972,427 | 869 | N/A | N/A | 2530710 |
| 61 | Ignited LLC | USA | Manhattan Beach | 2006 N Sepulveda Blvd # 202 | Los Angeles | 90266 | ignitedusa.***** | 1999 | $180,000,000 | 126 | N/A | N/A | 148363195 |
| 62 | Hh Associates U.S. , INC. | USA | Chicago | 203 N la Salle St Ste 1800 | Cook | 60601 | hhglobal.***** | 2007 | $144,103,867 | 1,000 | N/A | N/A | 4332979 |
| 63 | Innovid CORP. | USA | New York City | 30 Irving Pl Fl 12 | New York | 10003 | innovid.***** | 2007 | $139,882,000 | 466 | N/A | N/A | 6014046 |
| 64 | Active Media Services, INC. | USA | Pearl River | 1 Blue Hill Plz Ste 1705 | Rockland | 10965 | activeinternational.***** | 1984 | $122,140,797 | 500 | N/A | N/A | 939273 |
| 65 | Pinnacle Exhibits, INC. | USA | Hillsboro | 7090 Ne Westmark Dr | Washington | 97124 | pinnacle-exhibits.***** | 1998 | $120,000,000 | 300 | N/A | N/A | 931249842 |
| 66 | Doremus & Company | USA | New York City | 1285 Avenue of the Americas 4th Fl | New York | 10019 | doremus.***** | 1986 | $119,360,576 | 860 | N/A | N/A | 0691304 |
| 67 | Troika Media Group, INC. | USA | New York City | 25 W 39th St Fl 6 | New York | 10018 | troikamedia.***** | 1992 | $116,409,703 | 97 | N/A | N/A | C30388-2003 |
| 68 | Tbwa Worldwide INC. | USA | New York City | 220 E 42nd St Fl 14 | New York | 10017 | tbwa.***** | 1998 | $115,852,058 | 1,290 | N/A | N/A | 2930932 |
| 69 | Lion Re Sources, INC. | USA | New York City | 375 Hudson St | New York | 10014 | greenkeyllc.***** | 2015 | $114,156,641 | 200 | N/A | N/A | 1298339 |
| 70 | Moore, A Series LLC | USA | Lanham | 4200 Parliament Pl Fl 3 | Prince George'S | 20706 | wearemoore.***** | 2023 | $113,221,327 | 4,500 | N/A | N/A | 7428028 |
| 71 | Pmg Worldwide, LLC | USA | Dallas | 2601 Olive St Fl 19 | Dallas | 75201 | pmg.***** | 2010 | $112,263,217 | 135 | N/A | N/A | 0801283814 |
| 72 | Momentum Platform Services LLC | USA | Fort Worth | 2845 W 7th St | Tarrant | 76107 | N/A | 2022 | $112,263,217 | 135 | N/A | N/A | 7162219 |
| 73 | Angie's List, INC. | USA | Indianapolis | 1030 E Washington St | Marion | 46202 | careers.***** | 2017 | $111,860,747 | 1,730 | N/A | N/A | 4815464 |
| 74 | Openx Technologies, INC. | USA | Pasadena | 35 N Lake Ave Ste 240 | Los Angeles | 91101 | openx.***** | 2008 | $111,274,567 | 359 | N/A | N/A | 4546055 |
| 75 | Leo Burnett Detroit, LLC | USA | Troy | 3310 W Big Beaver Rd Ste 107 | Newaygo | 48084 | leoburnett.***** | 1978 | $111,026,645 | 155 | N/A | N/A | N/A |
| 76 | Mailsouth, INC. | USA | Helena | 5901 Highway 52 E | Shelby | 35080 | mspark.***** | 2024 | $110,760,354 | 850 | N/A | N/A | 000-123-983 |
| 77 | Outfront Media LLC | USA | New York City | 405 Lexington Ave 14th Fl | New York | 10174 | outfrontmedia.***** | 2014 | $106,853,307 | 100 | N/A | N/A | 2337422 |
| 78 | Moroch Holdings, INC. | USA | Dallas | 147 Manufacturing St | Dallas | 75207 | moroch.***** | 1981 | $105,781,125 | 580 | N/A | N/A | 751785464 |
| 79 | Mccann Worldgroup, LLC | USA | New York City | 622 3rd Ave Fl 3 | New York | 10017 | mccannworldgroup.***** | 1997 | $103,596,612 | 20,000 | N/A | N/A | N/A |
| 80 | Universal Mccann Worldwide, LLC | USA | New York City | 100 W 33rd St Fl 8 | New York | 10001 | umww.***** | 1999 | $102,199,289 | 3,600 | N/A | N/A | 4695280 |
| 81 | Instant Web, LLC | USA | Chanhassen | 7951 Powers Blvd | Carver | 55317 | iwco.***** | 1968 | $101,898,468 | 2,194 | N/A | N/A | 410946762 |
| 82 | The Ogilvy Group LLC | USA | New York City | 175 Greenwich St Fl 34 | New York | 10007 | ogilvy.***** | 2015 | $101,771,846 | 15,000 | N/A | N/A | 132903744 |
| 83 | Data Driven Holdings, LLC | USA | Herndon | 13825 Sunrise Valley Dr Ste 150 | Fairfax County | 20171 | teamvelocitymarketing.***** | 2014 | $100,144,999 | 285 | N/A | N/A | 5575002 |
| 84 | Cooper-Smith Advertising, L.L.C. | USA | Toledo | 3500 Granite Cir | Lucas | 43612 | cooper-smith.***** | 1995 | $100,000,000 | 60 | N/A | N/A | 1256573 |
| 85 | Aalp, INC. | USA | Boston | 101 Huntington Ave | Suffolk | 02199 | N/A | 1987 | $97,531,202 | 343 | N/A | N/A | 043156474 |
| 86 | Mullenlowe U.S., INC. | USA | Boston | 2 Drydock Ave Fl 8 | Suffolk | 02210 | us.***** | 1970 | $95,246,884 | 1,200 | N/A | N/A | 042746512 |
| 87 | Mediavest Worldwide, INC. | USA | New York City | 375 Hudson St | New York | 10014 | arcww.***** | 2012 | $93,116,917 | 85 | N/A | N/A | 5214352 |
| 88 | Bold Alliances LLC | USA | Irving | 8600 Freeport Pkwy Ste 200 | Dallas | 75063 | royalalliances.***** | 2012 | $90,000,000 | 45 | N/A | N/A | 0801670654 |
| 89 | Catalina Marketing CORPORATION | USA | St. Petersburg | 200 Carillon Pkwy | Pinellas | 33716 | catalina.***** | 2019 | $85,043,703 | 1,068 | N/A | N/A | 2286308 |
| 90 | Publicis, INC. | USA | New York City | 375 Hudson St | New York | 10014 | publicisna.***** | 1973 | $84,850,923 | 850 | N/A | N/A | 263089 |
| 91 | Nexxen INC | USA | Redwood | 100 Redwood Shores Pkwy | Ventura | 94065 | nexxen.***** | 2022 | $83,568,319 | 750 | N/A | N/A | 3964290 |
| 92 | Stran & Company, INC. | USA | Quincy | 2 Heritage Dr Ste 600 | Norfolk | 02171 | stran.***** | 1994 | $82,654,000 | 156 | N/A | N/A | E14687142021-3 |
| 93 | Rubin Postaer And Associates | USA | Santa Monica | 2525 Colorado Ave Ste 100 | Los Angeles | 90404 | rpa.***** | 1986 | $82,310,937 | 450 | N/A | N/A | 1382506 |
| 94 | Valpak Direct Marketing Systems, LLC | USA | St. Petersburg | 805 Executive Center Dr W | Pinellas | 33702 | valpak.***** | 2023 | $80,767,997 | 1,200 | N/A | N/A | N/A |
| 95 | Publicis Health, LLC | USA | New York City | 375 Hudson St | New York | 10014 | publicishealthmedia.***** | 2016 | $73,803,914 | 70 | N/A | N/A | N/A |
| 96 | Wpp Group Us Investments, INC. | USA | New York City | 100 Park Ave | New York | 10017 | N/A | 1985 | $72,319,069 | 28,120 | N/A | N/A | 3195639 |
| 97 | Integral AD Science, INC. | USA | New York City | 12 E 49th St Fl 20 | New York | 10017 | integralads.***** | 2024 | $70,005,655 | 552 | N/A | N/A | N/A |
| 98 | Healthcare, INC. | USA | Miami | 3401 N Miami Ave Ste 205 | Miami-dade | 33127 | healthcare.***** | 2011 | $70,000,000 | 185 | N/A | N/A | N/A |
| 99 | Rme, LLC | USA | Tampa | 4805 Independence Pkwy Ste 250 | Hillsborough | 33634 | leadingresponse.***** | 2009 | $69,025,799 | 135 | N/A | N/A | L05000074165 |
| 100 | Direct Digital Management, LLC | USA | Houston | 1233 West Loop S Ste 1170 | Harris | 77027 | directdigitalholdings.***** | 2020 | $67,713,359 | 90 | N/A | N/A | N/A |