Brecht Pierreux, listed as co-founder and CTO, departed Macadamia in May 2026 according to the company LinkedIn profile, indicating co-founder / leadership churn.
SourcePublic company, workplace, funding, and market signals
Updated Jul 29, 2026
Macadamia is a YC W25 startup building Cooper, an AI agent platform for industrial engineering teams that automates engineering and back-office workflows by working with CAD/CAE tools, project files, P&IDs, technical documentation, and ERP software.
Primary product
Cooper — an AI Mechanical Engineer / AI agents for industrial engineering automation
Founded
2025
Headquarters
San Francisco, California, United States
Team size
1-10 employees
Work style
Flexible
Industry
Software Development
Sub-industry
AI agents for industrial engineering automation
Offices
0 jobs at Macadamia
Check back later for new openings
Business model
Stage
Pre-Seed
Total raised
$500K
Latest round
Pre-Seed · Apr 2025
Latest amount
$500K
Apr 2025 · Y Combinator
Leadership
Co-Founder & CEO
Founders
Co-Founder & CTO
Investors
Small founder-led team with a strong autonomy/trust signal, direct work with founders, and a hands-on deployment motion that includes customer-facing work and travel. Hiring posts emphasize building fast, shipping with cutting-edge AI tools, and working from San Francisco or Ghent.
Work style
Flexible
Visa sponsorship
Yes
Compensation
Public job postings show Founding Engineer (Full-Stack) at $80K-$160K plus 1.00%-2.00% equity, and Founding GTM Lead at $60K-$100K plus 1.00%-2.00% equity. The GTM role is remote or Ghent-based; the engineering role is San Francisco or Ghent-based. Free food is explicitly mentioned.
Benefits
Differentiators
Technology
Customers
Estimated revenue
~$220K estimated ARR (third-party estimate, updated 2025-09-14)
Estimated monthly visits
3.4K
Traffic estimate as of Jul 2026
Brecht Pierreux, listed as co-founder and CTO, departed Macadamia in May 2026 according to the company LinkedIn profile, indicating co-founder / leadership churn.
SourceAbel Van Steenweghen / LinkedIn · Feb 2026
Abel referenced speaking about Macadamia at BuiltWorlds and said the company is building AI tools for a traditionally slower industry.
BuiltWorlds / LinkedIn · Jan 2026
BuiltWorlds highlighted Macadamia as a Demo Day competitor and previewed a talk from the company’s co-founder and CEO on AI for EPC firms.
Abel Van Steenweghen / LinkedIn · Jan 2026
Hiring post for a founding GTM lead to build the company’s go-to-market motion from scratch.
Abel Van Steenweghen / LinkedIn · Aug 2025
Hiring post for full-stack Founding Engineers, noting openings in San Francisco and Ghent and the mission to build AI employees for industrial construction and manufacturing teams.
Y Combinator / LinkedIn · Feb 2025
Launch post for Cooper, describing it as an AI mechanical engineer that detects and fixes design errors in mechanical engineering teams.