Insights

Agency Partnerships Zefr already collaborates with Omnicom Media Group, signaling strong agency alignment. There is growth potential to extend partnerships with other holding groups like Havas, WPP, and Publicis to scale joint campaigns. The YouTube integration and Advertising Context Protocol (AdCP) based activation enable automated, agent-driven campaigns within Google's buying ecosystem, offering a scalable enterprise sales path for agencies managing large video portfolios.

Brand Safety Leader Zefr provides brand safety and suitability capabilities across YouTube and Snapchat with independent verification of ad adjacencies. Its focus on misinformation measurement on YouTube enhances advertiser risk management. The addition of a Chief AI Officer highlights advanced AI capabilities that can further improve safety scoring and automated decisioning for brands prioritizing compliance.

Analytics Power Zefr’s tech stack featuring Google BigQuery, Apache Hive, Brandwatch, and Azure enables cross-platform measurement and rich audience insights. This supports data-driven planning, optimization, and reporting, creating opportunities to upsell enterprise-grade analytics and performance transparency to large advertisers and agency partners.

Automation Platform The Zain hub coupled with AdCP-based YouTube integration offers automated, agent-driven activation within Google’s ecosystem. This scalable automation capability can differentiate Zefr in winning high-volume campaigns and expanding within agency networks, presenting cross-sell opportunities to existing partners and new clients.

Scale Readiness With revenue in the mid-range hundreds of millions, 201-500 employees, and active fundraising, Zefr demonstrates financial and organizational scale to invest in product development, AI capabilities, and enterprise-grade services for large brands seeking safe and compliant social advertising across platforms.

Zefr Tech Stack

Zefr uses 8 technology products and services including Google Calendar, InVision, HashiCorp Terraform, and more. Explore Zefr's tech stack below.

  • Google Calendar
    Appointment Scheduling
  • InVision
    Communication And Collaboration
  • HashiCorp Terraform
    Configuration Management
  • Apache Hive
    Data Warehousing
  • Google BigQuery
    Data Warehousing
  • Selenium
    Frameworks And Libraries
  • Microsoft Azure
    Platform As A Service
  • Brandwatch
    Social Media Analytics And Monitoring

Media & News

Zefr's Email Address Formats

Zefr uses at least 1 format(s):
Zefr Email FormatsExamplePercentage
First.Last@zefr.comJohn.Doe@zefr.com
91%
First@zefr.comJohn@zefr.com
5%
Fir.Last@zefr.comJoh.Doe@zefr.com
3%
FLast@zefr.comJDoe@zefr.com
1%

Frequently Asked Questions

Where is Zefr's headquarters located?

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Zefr's main headquarters is located at 4101 Redwood Avenue Los Angeles, California 90066 United States. The company has employees across 6 continents, including North AmericaAsiaEurope.

What is Zefr's phone number?

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You can contact Zefr's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Zefr's official website and social media links?

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Zefr's official website is zefr.com and has social profiles on LinkedInCrunchbase.

What is Zefr's SIC code NAICS code?

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Zefr's SIC code is 8742 - Management Consulting Services NAICS code is 541613 - Marketing Consulting Services.

How many employees does Zefr have currently?

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As of June 2026, Zefr has approximately 266 employees across 6 continents, including North AmericaAsiaEurope. Key team members include Chief Commercial Officer: A. S.Chief Executive: Z. Y.Vp Strategy & Product: D. L. O.. Explore Zefr's employee directory with LeadIQ.

What industry does Zefr belong to?

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Zefr operates in the Advertising Services industry.

What technology does Zefr use?

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Zefr's tech stack includes Google CalendarInVisionHashiCorp TerraformApache HiveGoogle BigQuerySeleniumMicrosoft AzureBrandwatch.

What is Zefr's email format?

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Zefr's email format typically follows the pattern of First.Last@zefr.com. Find more Zefr email formats with LeadIQ.

How much funding has Zefr raised to date?

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As of June 2026, Zefr has raised $5M in funding. The last funding round occurred on Mar 09, 2016 for $5M.

When was Zefr founded?

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Zefr was founded in 2009.

Zefr

Advertising ServicesCalifornia, United States201-500 Employees

Zefr is a mid-sized technology company based in Los Angeles, operating in the advertising services industry. Its focus is brand safety and suitability for social platforms, helping advertisers navigate the constraints of social walled gardens and verify ad adjacencies on major networks such as YouTube and Snapchat. 

Its clients are brands and advertisers seeking responsible, compliant placements across social channels, with capabilities for third-party verification and measurement to assess campaign safety. In May 2026, Zefr announced an integration with YouTube that uses the Advertising Context Protocol to enable automated, agent-driven campaign activation within Google's buying ecosystem.

Section iconCompany Overview

Headquarters
4101 Redwood Avenue Los Angeles, California 90066 United States
Phone number
Website
zefr.com
SIC Code
8742 - Management Consulting Services
NAICS Code
541613 - Marketing Consulting Services
Founded
2009
Employees
201-500

Section iconFunding & Financials

  • $5M

    Zefr has raised a total of $5M of funding over 8 rounds. Their latest funding round was raised on Mar 09, 2016 in the amount of $5M.

  • $250M$500M

    Zefr's revenue is estimated to be in the range of $250M$500M

Section iconFunding & Financials

  • $5M

    Zefr has raised a total of $5M of funding over 8 rounds. Their latest funding round was raised on Mar 09, 2016 in the amount of $5M.

  • $250M$500M

    Zefr's revenue is estimated to be in the range of $250M$500M

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