Weld

Product overview

Weld is an ELT and reverse ETL platform based in Copenhagen, Denmark. It extracts data from over 200 sources (SaaS applications, databases, files), loads it into cloud warehouses such as BigQuery, Snowflake, Redshift, and PostgreSQL, and provides a built-in SQL editor for modeling and transforming data inside the warehouse. The reverse ETL feature pushes modeled data back to CRM, marketing, and operational tools. Founded in 2021 by former Pleo engineers, Weld targets small and mid-sized data teams that want a single platform for ingestion, transformation, and data activation without the cost and complexity of enterprise alternatives. The platform includes an AI assistant ("Ed") that generates SQL, debugs queries, and suggests transformations. Weld raised a $4.6 million seed round from Frontline Ventures and Cherry Ventures in 2021. Pricing starts at $99 per month for the Core plan (4 connectors, 2 million monthly active rows), with a Pro plan at $499 per month. A 14-day free trial is available with no credit card required. The company is SOC 2 and ISO 27001 certified, and explicitly offers EU data residency. KEY FEATURES: - 200+ pre-built source connectors with near-real-time sync - Built-in SQL transformation editor with dbt integration - Reverse ETL for pushing warehouse data to operational tools - AI-powered SQL assistant for data modeling and debugging - EU data residency, SOC 2, and ISO 27001 certified

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