Swimm

What Swimm is

Swimm is a product-enabled service for modernizing software, combining deterministic code analysis, AI, and subject-matter experts. Its engine maps dependencies, data flows, and relationships across repositories to build an understanding of a system. Swimm applies that context to modernization work such as API-first architecture, large-scale migrations, and an agentic context layer. The layer creates a validated knowledge base for tools including Copilot, Cursor, Claude Code, internal agents, and MCP servers. Engagements progress through Assessment, Specification, Modernization, and Enablement, with fixed pricing per stage and validation evidence at each step. Overall pricing depends on the number of lines of code to understand, and visitors are directed to request a demo; Proof of Concept options are available by contacting Swimm. The company says it can work with codebases of any size, including those with millions of lines, and serves complex and legacy systems, including mainframe code. It lists support for COBOL, JCL, and PL/I. Swimm supports API use, web access, self-hosted deployment, on-premise and air-gapped environments, and customer-managed LLMs such as Azure OpenAI Service or OpenAI Enterprise. It says it is SOC 2 and ISO 27001 compliant.