ZEFR

zefr.com

marketing & advertising

zefr.com

Los Angeles, California, United States

201-500 employees

100000000 revenue

LinkedIn Profile

About ZEFR

contextual video targeting, video targeting, programmatic video, data, social video, brand suitability, verification, measurement, walled gardens, ad verification, optimization, meta, tiktok, youtube, brand safety, music, sports, video, film, media

ZEFR's Tech Stack

AI/ML

Decision Makers at ZEFR

6 contacts

Ryan Barker

Chief Technology Officer

r***@zefr.com Sign up to view

Eliza Zhang

Software Engineer/Senior Data Engineer/ Manager

e***@zefr.com Sign up to view

Kristen Troll

Software Engineering Manager

k***@zefr.com Sign up to view

Naga Kondapaturi

Director of Engineering

n***@zefr.com Sign up to view

Mark Kawakami

Director of Front End Engineering

m***@zefr.com Sign up to view

Wesley Tanner

Vice President, Engineering

w***@zefr.com Sign up to view

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33 technologies detected · 6 decision makers · Emails available

Sales Outreach Angle

React-based front-ends indicate a modern web engineering stack. Developer tools, component libraries, testing frameworks, and design systems are relevant sales angles.

ZEFR's Position in the StackWho Database

• ZEFR is 1 of 80,546 marketing & advertising companies tracked in StackWho.
• 80,503 marketing & advertising companies in our database have verified decision-maker emails (100% of the cohort).
• 53,147 companies in California are in the StackWho database.
• 317 marketing & advertising companies are in the 201-500 employee range (same size as ZEFR).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated August 2026.

Frequently Asked Questions

What technology does ZEFR use?

ZEFR uses Route 53, Amazon SES, Rackspace MailGun, Gmail, Mimecast, Pardot, and 27 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at ZEFR?

StackWho has verified email addresses for 6 decision makers at ZEFR. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach ZEFR directly for sales, recruiting, or partnerships.

What industry is ZEFR in?

ZEFR operates in the marketing & advertising industry, headquartered in Los Angeles, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export ZEFR's contact data?

Yes. StackWho Pro members can export decision maker contact data for ZEFR and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.