Making data accessible everywhere.

Simple. Reliable. Fast. Secure.

— Hi, we are Weld

Engineered for reliable data movement

Weld was founded in Copenhagen in 2021 by Jonas Thordal and Kristian Barrett. They were early members of the startup success Pleo, where they were a part of building the company’s data infrastructure from the ground up. That experience shaped Weld’s mission: to deliver simple, fast, reliable, and secure ETL pipelines.

Jonas Thordal

CEO · Co-founder

Kristian Barrett

CTO · Co-founder

Breaking down scattered data

Modern companies run on dozens of SaaS tools, each creating its own silo of valuable data. Moving that data is complex and fragile. Pipelines break, insights get delayed, and teams end up working with partial truths. Weld’s mission is to make data movement effortless: bringing your company’s data where it’s needed, securely, reliably, and in near real-time, so every team can trust the same source of truth.

Built for global scale

Since Weld’s inception, we’ve raised multiple funding rounds from leading investors and business angels. Today, Weld’s data infrastructure supports the analytics, AI, and operational workflows of hundreds of data-driven teams in more than 20+ countries

Reliable infrastructure in the age of AI

The explosion of data with more sources, greater volumes and higher expectations makes reliability essential. In the age of AI, broken pipelines or delays do not just slow reports, they risk corrupting models and decisions. Weld now powers more than 150,000 daily data jobs and moves over 30 terabytes of data every single day with enterprise-grade SLA (99.9% uptime). This gives engineering teams the scale and trust they need to build AI-ready products and analytics.

1 zettabyte = 1 billion terabytes = 1 trillion gigabytes.

Source: Statista

Built by a passionate team

We are a team of tech entrepreneurs passionate about data engineering and AI. We believe reliable data infrastructure is the foundation for the next generation of products and companies, and we are here to make it simple, powerful and accessible.