# Square Robot secures Series B funding with Marathon Petroleum

Square Robot completed a Series B funding round and entered a strategic collaboration with Marathon Petroleum Corporation for robotic inspection of energy infrastructure.

- Type: Investment
- Announced: 2025-12-29
- Where: United States
- Status: announced
- Products: robotic inspection of storage and energy infrastructure
- Sectors: [Automation and Robotics](https://endata.com/sectors/automation-robotics.md)

## Companies

- [Square Robot](https://endata.com/companies/89441.md)
- [Marathon Petroleum](https://endata.com/companies/19220.md) (investor)

## Sources

- [roboticsindustrymonthly.com](https://roboticsindustrymonthly.com/category/ma-and-partnerships/page/2/), 2026-01-03: "Square Robot, Inc., an industry expert in robotic inspection of industrial storage and energy infrastructure, has completed a Series B funding round and entered into a strategic collaboration with Marathon Petroleum Corporation."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.