Currently taking on only 1 new client in Q3 2026.Currently taking on only 1 new client in Q3 2026.Currently taking on only 1 new client in Q3 2026.Currently taking on only 1 new client in Q3 2026.Currently taking on only 1 new client in Q3 2026.Currently taking on only 1 new client in Q3 2026.Currently taking on only 1 new client in Q3 2026.Currently taking on only 1 new client in Q3 2026.

Strategy and the screwdriver.

Amsterdam-based growth marketing consultant working with EU-focused Seed–Series B SaaS, fintech, and ecommerce teams who have outgrown guesswork.

Maciej Turek - Growth Marketing Consultant

Maciej Turek

I combine 15+ years of hands-on growth experience with senior strategic thinking. Unlike pure strategists, I execute directly in your tools — Customer.io, GA4, ad platforms, analytics stacks. Unlike pure tacticians, I align every test with board-level metrics like CAC payback and LTV.

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Background

I've led growth at bunq, Bitvavo, Dyme, and OneFit — scaling acquisition, building CRM and lifecycle functions from scratch, and launching new markets across the Netherlands and Europe. Today I work as an independent consultant with a small number of clients at a time, typically on CRM implementation, lifecycle strategy, performance marketing, AEO, or fractional growth leadership.

Methodology

  • Diagnose first. Map the funnel end-to-end — acquisition, activation, retention, revenue — and quantify where value leaks.
  • Fix what moves the needle. Prioritise by commercial impact, not activity volume. Run experiments with clear success criteria.
  • Build systems, not heroics. Document, train, and hand off so your team can operate without me.

Credentials & focus areas

  • 15+ years in SaaS, fintech, and ecommerce
  • Customer.io Certified Partner
  • Proven lifts: −18% CAC at bunq, +45% paid revenue at Awesome Maps, international expansion at OneFit
  • Core work: CRM & lifecycle, AEO & AI visibility, growth architecture & measurement, conversion experimentation

See client results, browse services, or read the resource library.

Let's talk

Most engagements start with a free 30-minute strategy call — no pitch, no deck.

Book a Free 30-min Strategy Call →
Book a Free 30-min Strategy Call