# Tom Sawyer Software

> Tom Sawyer Software is a Berkeley, California company founded in 1992 - the first commercial firm devoted entirely to graph visualization, layout, and analysis. Its low-code platform, Tom Sawyer Perspectives, plus tools like Explorations and the SysML v2 Viewer, let enterprises, governments, and software vendors turn tangled networks of data into readable pictures: fraud rings, supply chains, telecom topologies, and system models. Bootstrapped, profitable, and global, it has spent three decades drawing the lines between things.

- **Founded:** 1992
- **Headquarters:** Berkeley, California, United States
- **Founders:** Brendan Madden (Co-Founder & CEO), Patrick (Co-Founder) (Co-Founder & Principal Solutions Architect)
- **Team size:** ~45-81 employees (estimates vary by source)
- **Products:** Tom Sawyer Perspectives, Tom Sawyer Explorations, SysML v2 Viewer, Graph Database Browser, Graph Layout & Analysis Libraries
- **Notable:** First commercial company focused solely on graph visualization, layout, and analysis (1992)., U.S. National Institute of Standards and Technology (NIST) Advanced Technology Program Award for component-based software technology., Patent for labeling graphical features.

## Products & services

- **Tom Sawyer Perspectives** — A low-code graph and data visualization development platform with drawing, layout, map, timeline, and chart views for building custom analysis applications.
- **Tom Sawyer Explorations** — An end-user application for interactive exploration and analysis of connected data, launched in 2024.
- **SysML v2 Viewer** — A browser-based tool that automatically visualizes SysML v2 API-compliant system models for systems engineers; available on AWS Marketplace. Latest release 2.1 supports the 2026-03 SysML v2 reference implementation.
- **Graph Database Browser** — An application for visually browsing and analyzing data stored in graph databases.
- **Graph Layout & Analysis Libraries** — Foundational component software including layout algorithms and the original Graph Layout Toolkit and Graph Editor Toolkit.

## Achievements

- First commercial company focused solely on graph visualization, layout, and analysis (1992).
- U.S. National Institute of Standards and Technology (NIST) Advanced Technology Program Award for component-based software technology.
- Patent for labeling graphical features.
- Red Herring Top 100 Global Award.
- Bootstrapped to industry leadership with no external venture funding.
- Launched SysML v2 Viewer, tracking the evolving SysML v2 specification through multiple releases.

## Latest updates

- **2026-03** — SysML v2 Viewer 2.1 adds support for n-ary relationships, orthogonal edge routing, and the 2026-03 SysML v2 reference implementation.
- **2025-07** — SysML v2 Viewer 2.0 broadens syntax coverage, optimizes model layout, and adopts the 2025-07 SysML v2 reference implementation; adds OIDC SSO.
- **2024-01** — Launched Tom Sawyer Explorations and the first SysML v2 Viewer.

## Links

- Website: https://www.tomsawyer.com
- LinkedIn: https://www.linkedin.com/company/tom-sawyer-software
- Twitter/X: https://twitter.com/TSawyerSoftware
- YouTube: https://www.youtube.com/user/TomSawyerSoftware
- Facebook: https://facebook.com/Tom-Sawyer-Software/104231407534

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Profile page: https://yespress.io/tom-sawyer-software
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Last updated: 2026-06-20