21ST CENTURY ADVERTISING, INC.
Merrick advertising studio at dusk: film campaign posters on the wall, media plans on the oak desk, one lamp still on.

Advertising agency · Merrick, New York · Since 2009

Advertising for film companies.

We are 21ST CENTURY ADVERTISING, INC., a New York advertising agency. Film studios and entertainment brands hire us for posters, paid search, outdoor, cinema, and partner media buys. The corporation on the letterhead is the corporation that books the work.

Write to us See the work
2009Agency opened
FilmStudio campaigns
NYAdvertising corporation
D-U-N-S94-821-4460

The work

Film. Posters. Paid media. The buy.

This is an advertising agency. We plan and place campaigns for film companies and entertainment brands. Search lists, poster walls, screening rooms, and insertion orders — one legal entity on every invoice.

Agency screening room: a monitor, storyboard cards, and a film campaign poster against the wall.
01 · Film

Studios hire an agency, not a channel.

Theatrical, trailer, and entertainment campaigns. We sit with the cut, the title, and the date — then we buy the rooms where the audience actually shows up.

Studio wall of printed film posters and outdoor advertising proofs, clips and warm lamp light.
02 · Posters

The sheet on the wall still sells the picture.

One-sheets, wild posting, transit, and outdoor boards. Print proofs go up in this studio before a dollar of outdoor inventory is booked.

Paid-search media plans on cream paper, pencil ticks, calculator, tungsten lamp on a dark desk.
03 · Paid search

Someone is already looking for the title.

We write the query list, cut what does not belong, and place paid search and display. Notes stay on paper as well as in the account. The buy is ours.

Insertion orders and partner rate sheets on the desk, pencil ticks in the margin, a brass weight.
04 · The buy

Money has a destination, and a partner.

Where it went, through whom, and why. Search networks, outdoor operators, cinema circuits, publishers, streaming. One invoice from this corporation.

Partners

One agency. Many desks we buy through.

Film companies hire this advertising agency. We hold media partnerships across search networks, outdoor operators, cinema circuits, publishers, and streaming inventory. The partner never becomes the client of record. We do.

SearchPaid search networks
OutdoorBoards and transit
CinemaOn-screen inventory
PublishersPrint and digital

Streaming and specialist entertainment inventory is booked the same way: partner access, our insertion order, this corporation on the invoice.

Two people in the advertising studio reviewing printed film posters and campaign boards on the wall.

The studio

We sit with the posters.

Campaign boards get printed. They go on the wall. If a film title cannot survive that room, it does not survive the spend. That is the method of this advertising agency.

01
A name you can look up. The advertising corporation is this one. D-U-N-S 94-821-4460.
02
A street you can find. 177 Thelma Ave, Merrick, NY 11566, United States.
03
Notes you can open. Changes leave a file. We do not perform mystery.
04
A telephone that rings here. (516) 612-4704. English. Direct.

The record

Who you are writing to.

Film studios, networks, and counterparties ask for a legal name and a D-U-N-S number. Look the number up on the official D-U-N-S lookup. Last restated 1 October 2026.

Company record for 21ST CENTURY ADVERTISING, INC.
Legal name21ST CENTURY ADVERTISING, INC.
D-U-N-S®94-821-4460 · 948214460
TypeAdvertising agency · New York corporation
Studio177 Thelma Ave, Merrick, NY 11566, United States
Telephone(516) 612-4704
Emailinfo@21stcenturyadv.com
Compliancecompliance@21stcenturyadv.com
Sitewww.21stcenturyadv.com
Opened2009 · seventeen years
HoursMonday–Friday, 09:00–17:00 ET

Look up this D-U-N-S number

Enter 94-821-4460 or 948214460 on the official D-U-N-S lookup. Third-party listings can lag. The current studio is 177 Thelma Ave, Merrick, NY 11566, United States, restated 1 October 2026.

House mark, roman numeral XXI.

House mark · XXI

D-U-N-S is a registered trademark of Dun & Bradstreet. We publish our number and send you to the official lookup. This is not a Dun & Bradstreet page.

The street

177 Thelma Ave, Merrick, NY 11566.

United States. Nassau County. A house on a real street. If you need us in person, this is the door.

Blue hour on a tree-lined street in Merrick, Long Island: warm windows, autumn, parked cars.

177 Thelma Ave, Merrick, NY 11566

United States. Open the map for this street.

177 Thelma Ave, Merrick, NY 11566, United States

Mon–Fri 09:00–17:00 ET · Open in Maps

The desk

Write. Call. Come by.

Film companies, distributors, and counterparties: write the desk at info@21stcenturyadv.com. The form opens your email program with a copy to compliance@21stcenturyadv.com. Nothing is stored on this website.

Mail177 Thelma Ave, Merrick, NY 11566, United States

Monday–Friday, 09:00–17:00 ET