Directions to the Omnicom Group Inc. 2018 Annual Meeting of Shareholders

Meeting Date: Tuesday, May 22, 2018

Meeting Time: 10:00 a.m. Eastern Daylight Time

Meeting Place: 15th Floor Conference Center 220 East 42nd Street , NY 10017

The 15th Floor Conference Center is located on East 42nd Street in between 3rd Avenue and 2nd Avenue.

Subway Directions: Take the 4, 5 or 6 train to the Grand Central 42nd Street station. Take exit Lexington Ave & 42nd Street at SW corner. Head east on 42nd Street and proceed to 220 East 42nd Street.

From John F. Kennedy International Airport (JFK): Head south on I-678 S and take exit B toward 130th Pl. Keep right at the fork and merge onto 130th Pl. Turn right onto Bergen Rd. At Federal Circle, take the 5th exit onto the I-678 N. ramp. Merge onto I-678 N and take exit 2 toward Rockaway Blvd. Merge onto Van Wyck Expy. Slight left onto Route 678 ramp and merge onto I-678 N. Use the left 2 lanes to take exit 10 to merge onto Grand Central toward LaGuardia Airport/RF Bridge. Take exit 10E-10W onto I-495 W/ Expy toward Midtown . Follow I-495 W and continue onto I-495 W/ Midtown Tunnel. Take the Downtown exit and follow signs for Crosstown/37th St/3 Ave. Merge onto East 37th St and turn right onto 3rd Ave. Turn right onto East 42nd St and destination will be on the right.

From LaGuardia Airport (LGA): Take LaGuardia Access Rd. Merge onto Grand Central Pkwy via the ramp on the left to Triboro Bridge W. Take exit 4 for W/-Queens Expressway W toward . Continue onto I-278 W/Brooklyn Queens Expy E. Take exit 35 for I-495/L.I. Expy toward Midtown Tun/Eastern L.I./Greenpoint Ave. Keep left to continue on Exit 35W, follow signs for Interstate 495 W/Midtown Tun/Manhattan and merge onto I-495 W. Follow I-495 W and continue onto I-495 W/Queens Midtown Tunnel. Take the Downtown exit and follow signs for Crosstown/37th St/3 Ave. Merge onto East 37th St and turn right onto 3rd Ave. Turn right onto East 42nd St and destination will be on the right.

From Newark Liberty International Airport (EWR): Take Express Rd and follow signs for /. Merge onto I-78 Express E/Phillipsburg–Newark Expy. Take I-95 N. Merge onto I-95 N/NJ Turnpike N. Take exit 16 toward . Stay on NJ-495 E to Dyer Ave in Manhattan, New York. Take the exit toward 42 Street/Uptown/Theater District/NY-9A from NY-495 E. Continue onto Dyer Ave. Turn right onto West 42nd St, continue to East 42nd St and destination will be on the right.