About Swimm

We started by reading code. Now we rebuild it.

Swimm began in 2019 helping developers find their way around code they didn't write. Today our experts and our engine modernize the systems companies run on.

Our story

The name comes from the first day on a new codebase: you sink, or you swim.

We started Swimm to help developers get to know code they didn't write. Doing that well meant building an engine that maps code deterministically, years before LLMs made reading code fashionable.

Engineering teams used Swimm to keep what they knew about their code in step with the code itself. Over time, the hardest questions came from the oldest systems: the ones a business runs on, written by people who have long since moved on.

Then AI changed what teams asked for. They didn't want another tool to read their old code. They wanted the old system understood and the new one built. So in 2026 we became a service company: our experts and our agents do the work, on top of the engine we've refined for years.

Understanding was always a means to an end. The end is new code you can trust.

Along the way

From developer tool to modernization partner.

2019

Swimm is founded

An engine that maps code, built for developers joining a new codebase.

2024

Gartner Cool Vendor

Named in AI-Augmented Development and Testing.

2025

Into the mainframe

COBOL and legacy coverage, for the systems banks and insurers run on.

2026

A product-enabled service company

Agentic modernization, delivered by our expert pods, powered by the Swimm platform.

What we believe

Three ideas behind every engagement.

The code is the source of truth.

Documents drift and people move on. The code is what runs, so it's where we start.

Verify before you build.

Every rule is checked by an expert before anything is built on top of it.

You own what we build.

The code, the map and the know-how stay with you. We're there when you want to go further.

The people behind Swimm

Leadership
Oren Toledano

Oren Toledano

CEO and Co-founder

Oren leads the company and works directly with the teams we serve, from the first call to the handover.

"We're not selling a technology. We're selling a service."

Gilad Navot

Gilad Navot

CTO and Co-founder

Gilad leads the engine and the method behind every engagement, and the experts who deliver it.

"We can move very quickly on top of something we can actually trust."

A focused core team of engineers, domain experts and AI specialists, with expert pods that grow with each engagement. Join us.

Backed by

New YorkTel Aviv

Insight Partners Pitango Dawn Tau Ventures Axon Fundfire

Hand us the application you've been wrestling with.