Marc USA
325 N. La Salle Chicago, IL 60654 312-321-9000
Marcel Media
445 W. Erie Chicago IL. 60654 312-255-8044
Marketing Alternatives, Inc.
2550 Northwest Pkwy. Elgin, Il 60124 800-808-6555
Marketing by Design
8718 Galleria Ct. Spring Grove, IL 60081 815/675-3443
Marketing Drive
640 N. LaSalle Chicago, IL 60654 312-252-2333
Marketing Resources, Inc.
945 Oaklawn Ave. Elmhurst, IL 60126 630-530-0100
Marketing Solutions
440 N. Wells Chicago, IL 60654 312-932-9090
MarketSense
7020 High Grove Blvd. Burr Ridge, IL 60527 630-654-0170
Marquette Group
222 NE Monroe St. Peoria, IL 61602 800-548-6214
Martopia, Inc.
3805 E. Main St. # H St. Charles, IL 60174 630-587-9944
Mas Communications, Inc.
1735 N. Ashland Ave. 3rd Fl. Chicago, IL 60622 773-486-3712
Matrix Partners Ltd.
566 W. Adams Chicago, IL 60661 312-648-9972
McCormack Group
744 Cleveland Rd. Hinsdale, IL 60521 630-325-1808
McGarry, Bowen
515 N. State St. Chicago, IL 60654 312-840-8300
MediaCenter
735 McArdle Dr./Suite F Crystal Lake, IL 60014 815/455-3882
Meierhans Co., The
43 W 734 Old Midlothian Rd. Elburn, IL 60119 630-557-2575
Merge Chicago
200 E. Randolph Chicago, Il 60601 312-787-7667
Merge Consumer Mktg.
29 S. LaSalle #1000 Chicago, IL 60603 312-701-0388
Meyers & Partners
833 W. Jackson Chicago, IL 60607 312-733-9999
Miller Advertising Agency Inc. – Chicago
1 Northfield Plaza, Northfield, IL 60093 847-441-2618
Millward Brown Chicago
350 W. Mart Center Dr. #1200 Chicago, IL 60654 312-577-4100
Millward Brown Lisle
3333 Warrenville Rd. #400 Lisle, IL 60532 800-937-0099
MKG
2 N. LaSalle 14th Chicago, L 60602 773-58-9110
Mobium Creative Group
200 S. Michigan Ave. 17th Fl. Chicago IL. 60604 312-422-5927
Momentum
444 N. Michigan Ave. Chicago, IL 60611 312-245-3500
Monogram Group
233 S. Wacker #410 Chicago, IL 60606 312-726-4300
Morris Communications Inc., E.
820 N. Orleans Chicago, IL 60610 312-943-2900
Moveo
1 Parkview Plaza Oakbrook Terrace, IL 60181 630-570-4800
Mudd Advertising
211 W. Wacker Dr. 2nd Fl. Chicago, IL 60606 312-781-0176
Mundocom
1201 W. Lake St. Chicago, IL 60607 312-733-3070
N A S Recruitment Comm.
101 E. ErieChicago IL. 60611 312-425-6770
N S A Media
3025 Highland Pkwy. Downers Grove, IL 60515 630-729-7500
Narup Group, The
1215 Washington Ave. Wilmette, IL 60091 847-853-9400
New Control
33 W. Monroe Chicago, IL 60603 312-845-2700
Noble Chicago
33 W. Monroe Ste. 200 Chicago, IL 60603 312-670-2900
Norcom Inc.
35 Burning Tree Ln. Deerfield, IL 60015 847-948-7762
Norton Agency
549 W. Randolph Ste. 201 Chicago IL. 60661 312-470-6117
Norton Norris
55 E. Jackson Blvd. #950 Chicago IL. 60604 312-262-7400
O’Connor Communications
333 Warwick Rd. Lake Forest, IL 60045 847-615-5462
O’Keefe, Reinhard & Paul
328 S. Jefferson St. Chicago, Il 60661 312-226-6144
O’Reilly & De Palma
32 W. Nebraska St. Frankfort, IL 60423 815/469-9100
O’Keefe, Reinhard & Paul
208 S. Jefferson St. #101 Chicago IL 60661 312-226-6144
Ogilvy Action
350 N. Orleans Chicago, IL 60654 312-527-3900
Ogilvy Mather
350 W. Mart Center Dr. Chicago, IL 60654 312-856-8200
Omnibus
546 W. Campus Dr. Arlington Heights, IL 60004 847-255-6000
Onion Labs
730 N. Franklin Chicago, IL 60654 312-751-0503
Otherwise, Inc.
1144 W. Randolph Chicago, IL 60607 312-226-1144
P M T Advertising
7777 Lincoln Hwy. Frankfort, IL 60423 815/469-4555
P S & A Communications
206 Fifth St. Wilmette, IL 60091 847-256-4956
Paco Communications
400 S. Green St. Chicago, IL 60607 312-226-7830