Founder & CEO, Bookyourdata
I'm Baris Zeren. I founded Bookyourdata in 2015 to fix a broken model for B2B contact data: stale lists sold on subscription. Today Bookyourdata verifies every email in real time at the moment of download and serves 20,000+ clients in 200+ countries.
01 About
Baris Zeren is a B2B data entrepreneur with 2 exits and more than 20 years in sales intelligence. He founded Bookyourdata in 2015 around a single idea, and that idea still guides the company today.
Nobody should pay a subscription for contact data that goes stale before they use it.
Bookyourdata turned that idea into its pay-as-you-go model for B2B contact data. Buyers filter a pool of 500M+ profiles, pay only for the records they select, and every email address passes real-time verification at export, backed by a 97% deliverability guarantee.
Bookyourdata now serves 20,000+ paying clients and reaches 200,000 users in 200+ countries, from solo recruiters to teams at the largest companies in tech, consulting, and finance. G2 reviewers rate Bookyourdata 4.9 out of 5 across 348 reviews.
Baris Zeren has written 2 books on email marketing and AI sales, and speaks about email deliverability, data quality, and how AI changes B2B selling. He studied Material and Metallurgical Engineering at Istanbul Technical University, where an early pull toward math, data, and marketing set the direction for everything since.
02 Track record
01First datasets built solo, world's first car and mobile phone spec databases.
02First US business listing database, 15 million records, coined "business list/business email list/business database".
03First US B2B email contact list, 9 million records.
04First international B2B prospecting lists and a stable global pool.
05Bookyourdata launches: pay as you go, no subscriptions, credits never expire.
0620,000+ clients, 200+ countries, real-time verification on every export.
03 Work
Bookyourdata is a B2B contact data platform built on a pool of 500M+ profiles, with real-time email verification and a 97% deliverability guarantee. 3 lanes cover every buyer.
Baris Zeren built and sold 2 companies before Bookyourdata, a 2x exit across 2 decades in B2B data and sales intelligence. The playbook that started in 2004 still shapes the work today.
04 Books
How to buy email lists without burning your sender reputation: sourcing, verification, compliance, and the metrics that separate a working list from an expensive mistake.
Read on Amazon
A field guide to using AI across the sales cycle, from targeting and enrichment to outreach, written for operators rather than futurists.
Read on Amazon05 Elsewhere
06 Contact