What Does 33Across Do?

Total employees200
HeadquartersNew York
Founded2007

33Across empowers publishers to unlock the true potential of their inventory and helps advertisers reach consumers across a wide range of devices and channels. They offer a suite of programmatic advertising solutions, focusing on header bidding technology, direct ad sales, and audience monetization.

Where Is 33Across's Headquarters?

33Across office33Across office33Across office33Across office
*Images sourced via web search. Rights belong to original owners

HQ Function

Serves as the central hub for executive leadership, sales, marketing, product development, and engineering.

Notable Features:

The building offers modern office spaces with open layouts, fostering collaboration and innovation. It's situated in a prime location with easy access to transportation and amenities.

Work Culture:

The HQ promotes a dynamic and collaborative work environment. Employees experience a fast-paced culture driven by innovation and a commitment to providing cutting-edge advertising solutions.

HQ Significance:

The New York City headquarters is strategically located to attract top talent in the advertising and technology industries, fostering innovation and facilitating partnerships within the media ecosystem.

Values Reflected in HQ: The modern and innovative design reflects 33Across's commitment to technological advancement and a forward-thinking approach to advertising.

Location:

33Across supports programmatic advertising campaigns globally, with a focus on North America, Europe, and Asia-Pacific. They provide solutions for publishers and advertisers worldwide, enabling them to reach audiences across diverse regions and platforms.

Street Address:

55 Fifth Avenue

City:

New York

State/Province:

NY

Country:

USA

Where Else Does 33Across Operate Around the World?

Los Angeles, CA, USA

Address: Address not publicly available

Focuses on serving clients and partners on the West Coast and expanding 33Across's reach within the entertainment and media sectors.

Buying Intent Signals for 33Across

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading 33Across? Meet the Executive Team

As of April 2025, 33Across' leadership includes:

Jack Rothenberg - CEO
Paul Belliveau - CTO

Who's Investing in 33Across?

33Across has been backed by several prominent investors over the years, including:

Oak Investment Partners
iNovia Capital
Grotech Ventures

What Leadership Changes Has 33Across Seen Recently?

Hire0
Exits0

There is no readily available information regarding significant executive hires or exits at 33Across within the last 12 months. Public information is limited, and it's possible changes occurred that are not publicly documented.

What Technology (Tech Stack) Is Used by33Across?

Discover the tools 33Across uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

33Across Email Formats and Examples

33Across likely uses a standard email format for its employees. It's often a variation of first name initial and last name or first name dot last name.

[first_initial][last]@33across.com

Format

jdoe@33across.com

Example

60%

Success rate

What's the Latest News About 33Across?

MarTech Series • 2023-09-14

33Across Unveils Next-Generation Lexicon Identity Graph

33Across announced the launch of its next-generation Lexicon Identity Graph, designed to improve addressability and monetization for publishers in a privacy-centric manner....more

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