Four Js is the software company behind Genero, a platform to develop, modernize and run mission-critical applications. From Informix 4GL to web, mobile and AI, with the same business logic. For more than 30 years, Four Js has focused on applications that cannot fail. It has offices in nine countries and provides local support in the customer's region, time zone and language. Four Js is part of the Volaris Group, which is part of Constellation Software. One platform, five product families: Modernize: Genero Enterprise is built on Genero BDL, the direct evolution of the Informix 4GL language. You recompile your code instead of rewriting it. Then you modernize step by step: desktop, web and mobile interfaces from one codebase, on your choice of database, on-premises or in the cloud. Genero Voice, an add-on to Genero Enterprise, adds voice agents that answer callers in 40+ languages. Reimagine: Genero Arc turns your Genero application into a backend for any modern frontend (web, mobile, even AI agents), with no change to its source code. Accelerate: Genero Intelligence is an AI knowledge service for Genero developers, delivered over the open Model Context Protocol (MCP). Your AI tool, such as Claude Code, GitHub Copilot or Cursor, brings the model. Genero Intelligence brings the Genero knowledge: 70+ curated development skills and the official Genero BDL documentation. With it, your developers can write Genero code at the speed of a senior team. It does not rewrite your applications automatically: your engineers stay in control. Operate: With no code change, Genero Observability traces each user interaction inside your applications and sends the traces to OpenTelemetry-compatible tools such as Datadog or Jaeger. Report: Genero Report Writer, an alternative to Crystal Reports, embeds high-volume reporting, including Factur-X e-invoices, in Java, .NET, PHP and Genero applications. Learn more at fourjs.com
Looking for a particular Four Js Development Tools employee's phone or email?
The Four Js Development Tools annual revenue was $23.2 million in 2026.
W. Bonner is the CEO of Four Js Development Tools.
80 people are employed at Four Js Development Tools.
Four Js Development Tools is based in Irving, Texas.
The NAICS codes for Four Js Development Tools are [51, 511, 541, 54].
The SIC codes for Four Js Development Tools are [737, 525, 52, 73].