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ZEFR

Consumer Services · Los Angeles, United States · Founded 2009

With access to more data than any YouTube partner, ZEFR is the technology company that drives better results for content owners and brands. MoreLess

Zefr is a technology company that specializes in contextual advertising, which means they help brands place their ads in the right context without using personal information (PII). This approach ensures that ads are shown alongside content that aligns with the brand's values and target audience. Zefr's technology is particularly effective for video content, making it a valuable tool for brands looking to advertise on platforms like YouTube and Facebook.

The company serves a variety of clients, including consumer packaged goods (CPG) companies, quick service restaurants, and other brands that want to reach specific audiences without compromising user privacy. Zefr operates in the digital advertising market, focusing on contextual targeting, which is a growing segment as privacy concerns become more prominent.

Zefr's business model revolves around its Contextual Data Management Platform (DMP). This platform captures, organizes, and activates brands' nuanced preferences to deliver effective and scalable ad campaigns. By using this technology, Zefr can offer pre-flight targeting with impression-level transparency, ensuring that each ad is aligned with the right content every time. This precise targeting leads to higher engagement rates and better campaign performance.

The company makes money by charging brands for its targeting services. These services include customized video-level targeting, which has been shown to drive significant lifts in key performance indicators (KPIs) such as view-through rates, aided awareness, and brand favorability. Zefr's dynamic targeting solutions also make ad campaigns more efficient and effective, providing a strong return on investment for their clients.

In summary, Zefr is a leader in contextual advertising, helping brands reach their target audiences in a privacy-compliant manner. Their advanced technology and focus on video content make them a go-to partner for brands looking to optimize their digital ad campaigns.

Keywords: contextual advertising, video targeting, privacy-compliant, digital marketing, YouTube ads, Facebook ads, brand alignment, consumer engagement, dynamic targeting, ad efficiency.

Talent graph

ZEFR's talent

Book a demo to see the people
Team profiled 64 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 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.

Investors

14 investors on ZEFR's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 1 investor entered at this stage
Launchpad LA
Series A 10 investors entered at this stage
Shasta Ventures
First Round Capital
Uncork Capital
Naval Ravikant
Tom McInerney
Stance
Felicis
MK Capital
Richmond Park Partners
Gordon Rubenstein
Series B+ 3 investors entered at this stage

Global footprint

Where ZEFR has talent and traffic

Workforce by country
10 countries with
team presence
🇺🇸 United States82%
🇬🇧 United Kingdom5.1%
🇨🇦 Canada3.1%
🇮🇱 Israel2.6%
🇲🇽 Mexico2.6%
Top 5 of 10 shown

Market sentiment

What the market is saying about ZEFR

An AI-synthesized read of the highest-engagement posts about ZEFR on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

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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