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Monumental

Monumental

Private
AmsterdamReal Estate & PropTechhttps://www.monumental.co/

Last Round

Series B

Jul 15, 2026

Total Funding Raised

$57M

Company Overview

Monumental is a robotics company that develops and deploys AI-powered autonomous robots for on-site construction, focusing on automating tasks like bricklaying.

Sector

Real Estate & PropTech

Verticals

Construction Tech, Industrial Robotics, PropTech Services, Computer Vision

Business Model

B2B

Customer Profile

Usage-Based SaaS, Services & Consulting, Hardware + Subscription

AI Layer

Application

Keywords

autonomous bricklayingbricklaying robotsconstruction roboticsRobot-as-a-ServiceRaaSautonomous constructionconstruction automationautonomous robotsAI for constructionconstruction techmasonry automationmachine visionconstruction subcontractorusage-based pricing

Historical Pricing

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Monumental Comps

Public and private peers based on sector, stage, and business model.

Monumental comps — public and private peers by sector, stage, and business model
CompanyStatusEst. ValuationRev Multiple
OpenAIPrivate$86.0B~40x
CoherePrivate$5.0B--
Competitor 1Public$XX.XBXXx
Competitor 2Public$XX.XBXXx

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Monumental Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BJul 15, 2026
SeedFeb 15, 2024

Key People

Founding team and executive leadership

Sebastiaan Visser

Founder CTO

Founding Team

Salar al Khafaji

Founder CEO

Founding Team

Monumental Investors

Notable investors and investment history

Monumental investors
InvestorRounds
Khosla VenturesSeries B
NorthzoneSeed
Material VenturesSeed
FoundamentalSeed
PluralSeries B, Seed
NP-Hard VenturesSeed
Hummingbird VenturesSeries B, Seed

Market signals

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  • Feb 16, 2026

    Grew 73% QoQ, from 49 to 85 employees.

  • Jan 20, 2026

    Grew 17% QoQ, from 71 to 83 employees.

Monumental Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Monumental Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

HeadquartersAmsterdam
Employee Range102
Year Founded2021
Last FundingJul 15, 2026

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