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33Across

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33Across is a technology company focused on solving the challenge of consumer attention for automated advertising

Sunnyvale, United StatesFounded 2007Marketing
Valuation $0–100M Latest valuation · 2012
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for 33Across and the history behind them.

About 33Across

33Across is a technology company that focuses on helping publishers maximize the value of their online content. The company operates in the digital advertising market, providing tools and platforms that enable publishers to safely and effectively monetize their inventory—essentially, the space on their websites where ads can be displayed. By doing so, 33Across helps publishers increase their revenue while maintaining the quality and integrity of their content.

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The company's primary clients are publishers, advertisers, and data partners. Publishers use 33Across's technology to enhance the value of their ad spaces and ensure they are filled with high-quality, relevant advertisements. Advertisers benefit from access to new audiences and more effective ad placements, while data partners gain valuable insights that enrich their data assets.

33Across operates a supply-side platform (SSP), which is a type of software used by publishers to manage, sell, and optimize their ad inventory. The platform includes features like identity resolution, which helps match ads to the right users without additional costs, and programmatic advertising, which automates the buying and selling of ad space in real-time.

The business model of 33Across revolves around providing these technological solutions to its clients. The company makes money by charging fees for the use of its platform and services. By removing additional costs like ID and data fees from the supply chain, 33Across increases the revenue for publishers and the working media budgets for advertisers.

In summary, 33Across is a key player in the digital advertising ecosystem, offering integrated solutions that help publishers, advertisers, and data partners navigate the complexities of programmatic advertising. The company's focus on quality, integrity, and innovation positions it as a valuable partner in the open internet landscape.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2007
Headquarters
Sunnyvale, United States
Employees
50
Open positions
None listed
Dealroom signal
36.7/100
Industry
Marketing
Sub-industry
Adtech
Sector
Marketing, Entertainment, Publishing, SEO, User Behavior, Hard Tech
Business model
Manufacturing
Client focus
b2b
Investment activity
1 company, latest Jan 2012
Capital deployed
Preferred round
ACQUISITION

Latest news

Press, funding announcements and product moves mentioning 33Across.

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Funding history

8 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
CONVERTIBLEEquity / VC Feb 2016 $1.5M Undisclosed
SERIES CEquity / VC Jul 2012 $13M $52M Pelion Venture Partners · Greycroft Partners
Showing the latest 2 of 8 recorded eventsBook a demo for the full funding history →

Growth signals

33Across website traffic

Latest recorded traffic for 33Across is 48K monthly website visits, up 0% over the last three months. 33Across's team grew 2% over the past year.

Latest monthly visits48K 3-month web change0% 1-year team growth+2%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

10 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A5 investors entered at this stage

Series B and later2 investors entered at this stage

Other known investors3 additional known investors

Team profiled 30 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
1 countries with
team presence
🇺🇸 United States100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about 33Across on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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