Key facts
- Square Robot’s last known valuation is $78.0M (Dec 2025).
- It has raised $42.0M across 6 recorded rounds; the latest was Early Stage VC ($7.5M) in Sep 2025.
- Notable investors include MassRobotics, Crosstown Capital, Incubatenergy Network, Marathon Petroleum (Findlay).
- Square Robot has filed 5 Form Ds with the SEC since 2020, most recently Dec 2024 ($13.0M sold to 9 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 6 rounds
- ·The complete investor list — 4 names
- ·Watchlist + deal alerts for Square Robot
Funding rounds
6 roundsAbout Square Robot
Developer of a robotic inspection platform designed to inspect the internal condition of above-ground storage tanks while in service. The company designs and develops autonomous robotic technologies for confined-space inspection, enabling petrochemical and energy operators to assess tank floor integrity without draining tanks or human entry.
- Sector
- Information Technology
- HQ
- Westborough, MA, United States
- Founded
- 2016
- Employees
- 61
- Website
- squarerobot.com/
- Ownership
- Privately Held (backing)
Square Robot doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Square Robot shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Square Robot in its N-PORT filings yet. We sweep new filings monthly.