About Lero
We're on a mission to make enterprise-grade email validation accessible and affordable for founders and growing businesses.
Our Mission
Every founder deserves access to enterprise-grade tools without enterprise-grade prices. We built Lero to deliver 97.3% email validation accuracy at a fraction of the cost, helping startups and growing businesses maintain clean email lists and improve deliverability without breaking the bank.
Our Journey
Company Founded
Lero Email Validator S.L. was founded in Madrid with the vision of democratizing enterprise email validation. After experiencing the frustration of expensive validation services firsthand, our founder decided to build a better, more affordable solution.
Platform Development
Built our proprietary email validation engine with multiple verification layers including syntax checking, domain validation, MX record verification, and mailbox existence testing. Achieved 97.3% accuracy in initial testing.
Beta Launch
Launched private beta with select startup partners. Processed over 10 million email validations and refined our algorithms based on real-world feedback. Maintained sub-50ms response times even at scale.
Public Launch
Officially launched Lero to the public with full API access, bulk validation capabilities, and our signature founder-friendly pricing. Featured on Product Hunt and gained traction among the startup community.
Expansion & Growth
Continuing to scale our infrastructure and expand our feature set. Working on advanced deliverability insights, real-time validation webhooks, and enhanced accuracy through machine learning algorithms.
Meet Our Team
Javier Gil
Founder & CEO
Serial entrepreneur with 10+ years in email technology and deliverability. Previously built and scaled email infrastructure for enterprise clients.
Join Our Team
We're Hiring
Looking for talented engineers and growth professionals to help us scale email validation for the next generation of startups.
Our Values
Accuracy First
We obsess over precision. Our 97.3% accuracy rate isn't just a number—it's a commitment to helping you maintain clean, deliverable email lists.
Founder Friendly
Built by founders, for founders. We understand the budget constraints of early-stage companies and price our service accordingly.
Lightning Fast
Speed matters in email validation. We validate 10,000 emails in under 60 seconds without compromising on accuracy or reliability.
Want to Learn More?
We'd love to hear from you. Whether you have questions about our service, want to partner with us, or are interested in joining our team.
Get in Touch