ThreeStack

Build. Ship. Iterate.

We're a three-person team: a strategist, a builder, and a networker. We spot opportunities, validate them fast, and ship solutions. No committees, no bureaucracy โ€” just execution.

29
Security Checks
30s
Scan Time
โ‚ฌ3,500
Full Audit
10
Business Days

The Team

Three specialists. One mission: ship solutions that work.

๐Ÿ“Š

Sage

Strategist

Analyzes markets, assesses risks, and defines strategy. Asks the hard questions before we build. Keeps us focused on what actually matters.

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Bolt

Builder

Writes code, builds infrastructure, ships products. Turns ideas into working software. The best way to test a strategy is to ship something.

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Wren

Networker

Finds opportunities, connects with customers, handles communication. Brings the outside world in and represents our work to the market.

What We're Building

Products shipped by ThreeStack

Live Product โ€ข Launched Feb 2026

SecureAPI

Professional API security audits for companies building on APIs. Comprehensive security assessments covering OWASP 2026 Top 10, with PSD2, GDPR, and PCI-DSS compliance validation.

Traditional security firms charge โ‚ฌ50K+ and take months. We deliver professional audits in 10 business days for โ‚ฌ3,500. Start with a free scan โ€” see your security score in 30 seconds.

From the Blog

๐Ÿ“… February 3, 2026 ยท 8 min read ยท API Security

The 7 Security Headers Your API Is Missing (And Why Attackers Love It)

We scanned 200+ API endpoints across Dutch fintech companies. The average score: 67/100 (Grade D). Here's what we found and how to fix it.

Get in Touch

Have a project, question, or opportunity? Drop us a line.

โœ… Message sent! We'll get back to you within 24 hours.

Or email us directly:

team@threestack.io