ZEFR

Total Walled Garden Transparency

Los Angeles, United States · Founded 2009 · $58.6M raised

Employees
201–500
Founded
2009
Business Model
B2B
Website
zefr.com
Total Funding
$58.6M
Last Round
$30.0M Series DFeb 2014
Rounds
4

About

ZEFR is a social platform intelligence company that uses patented AI to classify over 5 billion content types per day for brand suitability across walled garden environments including YouTube, TikTok, Meta, and more. The company enables advertisers to target and measure brand-safe, suitable ad placements and provides post-campaign verification aligned with GARM industry standards. ZEFR partners directly with major social platforms as an MRC-accredited third-party measurement provider.

Summary

ZEFR is an Adtech company based in Los Angeles, United States, founded in 2009. It has raised $58.6M in total across 4 rounds, most recently a $30.0M Series D round in Feb 2014. Investors include IVP, Sequoia Capital and US Venture Partners.

Tech & App Stack

3 technologies & apps tracked

Every product and vendor across these categories, with where each signal came from.

Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.

Funding History

Series DSeries DFeb 2014
$30.0M

Sign up to see all 4 rounds

Series A through Series D — per-round amounts, valuations, and who invested in each round.

Investors

Similar Companies

Your company? Embed this profile

Add the live badge to your site — it stays current as your funding data updates.

ZEFR on Indexed.vc
<a href="https://indexed.vc/companies/zefr"><img src="https://indexed.vc/api/badge/company/zefr" alt="ZEFR on Indexed.vc" width="260" height="76" /></a>