Monumental
Summary active Updated Jul 19, 2026This profile is AI-generated. If you spot an error, please help us fix it by sharing a URL to the correct information.
Investors
Founders
About
Monumental is an Amsterdam-based construction-robotics company building autonomous bricklaying robots and an AI software platform, Atrium, to address labor shortages in the building industry 12. The company was founded in 2021 by Salar al Khafaji (CEO) and Sebastiaan Visser (CTO), who previously co-founded data-visualization startup Silk before it was acquired by Palantir in 2016 23. Monumental currently operates a fleet of more than 150 robots on construction projects across the Netherlands and the United Kingdom, and says its robots have helped build over 100 homes plus a school, community center, hotel, and canal walls 12. The company charges contractors on an outcome-based model — paying for completed walls rather than purchasing equipment — and plans to expand across Europe and enter the United States later in 2026 12.
On 2026-07-15 Monumental announced a $32 million Series B led by Khosla Ventures, with participation from existing investors Plural and Hummingbird 123.
Disclaimer: This is a lean profile built from initial round coverage and may be expanded as more information becomes available.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-07-15 | Series B | $32M | Khosla Ventures | Plural, Hummingbird 123 |
What Investors Say
No independently sourced investor commentary quoted at press time.
What Founders Say
“Every robot we deploy expands the industry’s capacity to build, bringing a future of beautiful, affordable, bespoke buildings and infrastructure closer to reality.”
— Salar al Khafaji, Co-Founder & CEO, Monumental 1
Sources
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“Monumental secures $32M Series B to accelerate construction automation,” Tech.eu, July 15, 2026. Accessed July 2026. https://tech.eu/2026/07/15/monumental-secures-32m-series-b-to-accelerate-construction-automation/↩↩↩↩↩↩
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Jessica Mathews, “He sold his last company to Palantir. Now he’s betting $32 million that robots can fix construction’s labor crisis,” Fortune, July 15, 2026. Accessed July 2026. https://fortune.com/2026/07/15/construction-robotics-startup-monumental-raises-32-million-from-khosla-ventures-to-tackle-labor-shortages/↩↩↩↩↩↩
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“Robotics startup Monumental raises $32m backed by Khosla Ventures,” Sifted, July 15, 2026. Accessed July 2026. https://sifted.eu/articles/monumental-robots-fundraise-raises-32m-backed-by-khosla-ventures↩↩↩