Who founded Macadamia?

Macadamia was founded by Abel Van Steenweghen, Brecht Pierreux in 2025.

Who are Macadamia's investors?

Macadamia's investors include Y Combinator.

Where is Macadamia headquartered?

Macadamia is headquartered in Ghent, BE.

Macadamia

YC W25

Ghent, BE · Founded 2025 · 2 employees · Hiring · 1 known investors

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Macadamia Labs provides AI agents that automate engineering and back-office processes for engineering firms, including tasks like AutoCAD design generation, P&ID verification, and technical documentation review.

Also known as Macadamia Labs Inc.

AI & Machine Learning Developer Tools Enterprise SoftwareBelgiumEurope

Founders & leadership· Y Combinator alumni (W25)

Macadamia was founded in 2025 by Abel Van Steenweghen and Brecht Pierreux.

Abel Van Steenweghen FounderAbel Van Steenweghen is co-founder of Macadamia, which develops AI agents for engineering teams to automate administrative workflows.

Brecht Pierreux FounderBrecht Pierreux worked as an engineer at SpaceX and NASA's Jet Propulsion Laboratory before founding Macadamia, which develops AI tools for technical problem-solving.

Investors · 1

Y Combinator✓ confirmed by MacadamiaSan Francisco · $500K

How we know: the Y Combinator directory · funding news · startupintros.com · open dataset · 5k.vc investor directory · Not right? Tell us

Funding

SEC filings, press & company announcements

Undisclosed amountSeedJul 2026
Y Combinator
Source ↗

Source: company announcements and press reports — follow each round's link for the claim.

The YC application· Winter 2025 batch

Alumni Q&A

What is the core problem you are solving? Why is this a big problem? What made you decide to work on it?: The founders note that while AI agents are increasingly automating software engineering work, similar tools do not yet exist for engineers working on physical systems. They observe that engineering teams are frequently slowed by administrative workflows rather than engineering itself, and they are building AI agents to handle that routine work.
What is your long-term vision? If you truly succeed, what will be different about the world?: The founders envision human engineers working alongside AI engineers, with humans focusing on design and decision-making while routine constraints are removed.

Summarized from the founders' answers on their Y Combinator profile.

Images

Legal entities · 1

corporate structure

Macadamia Labs Inc.

In the news

Macadamia: an AI Mechanical Engineerycombinator.com · Feb 2025

Frequently asked questions

What does Macadamia do?: Macadamia Labs provides AI agents that automate engineering and back-office processes for engineering firms, including tasks like AutoCAD design generation, P&ID verification, and technical documentation review.
Who founded Macadamia?: Macadamia was founded by Abel Van Steenweghen, Brecht Pierreux in 2025.
Who are Macadamia's investors?: Macadamia's investors include Y Combinator.
Where is Macadamia headquartered?: Macadamia is headquartered in Ghent, BE.