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About FlowBaas · the guide

Twenty years running large programmes. Now AI governance in production.

Nisse Klaaijsen spent twenty years building IT transformations in Financial Services. Now: AI governance in production at banks, insurers and mortgage lenders.

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Portrait photo of Nisse Klaaijsen, founder of FlowBaas
Founder · a guide, not a guruNisse Klaaijsen
20+years of FS transformations
5,000+engineers led
8FS institutions guided
6sectors active
2 wksfirst model register
Background

A guide, not a guru.

No consultancy report. One working register, a team that keeps it current, and an approach that fits the shop floor of a bank as well as the van of an installer.

01 — Financial Services, from the inside

Twenty years on the programmes that cannot fail.

Twenty years working on IT transformations at Dutch banks, insurers and mortgage lenders. Programme management on initiatives that could not fail: core systems, regulatory releases, transition packages.

That gives one hard lesson: a beautiful dashboard helps nothing if the shop floor does not use it. Compliance is execution, not presentation.

02 — The turn toward AI governance

The same pattern at every FS client.

Between 2022 and 2025 I saw the same pattern at every FS client. Marketing using ChatGPT. Sales with a copilot. Risk that never got a list anywhere. The regulator starting to ask questions.

The EU AI Act made it urgent: you cannot classify a model you do not know about.

03 — FlowBaas

Started in 2025 because it had to be done differently.

No report, no year-long implementation. One living register, a team that keeps it current, and an approach that fits the shop floor of a bank as well as the van of an installer.

Enterprise knowledge from an AI Portfolio Lead at a top-3 bank (5,000+ engineers), translated into a practical, affordable approach for SMEs.

How we work

Three principles that steer everything.

Not promising what sounds good, but delivering what the shop floor survives.

01 — Pace

Inventory in weeks, not months.

We deliver a first model register within two weeks of engagement. You cannot classify a model you do not know about, so first map it, then classify it.

02 — Fit

No second system.

What we build connects to your existing tools. No extra login, no stray spreadsheet. One place, an owner per line, traceable at audit.

03 — Ownership

We set it up and hand it over.

Ownership stays with you. No vendor lock-in as a back door to recurring revenue. We stay available, but you do not grind to a halt when we leave.

Where we stand

Six sectors, no pretence of full-stack.

We say where we are strong and where we are learning. Active in, among others:

Bankingincluding a top-3 NL bank
Pilot Q2 2026
Insurancegovernance & model risk
Active
Mortgagesunderwriting AI, explainability, AFM
Active
Tech & SaaSAI features without compliance debt
Active
ManufacturingAI on the shop floor, traceable
Active
Construction & Installationflagship — first SME pilot running
Since Q2 2026
Honesty block

What I'm not.

I position myself as a builder, not an oracle. Three things to be clear on upfront.

  • Not an AI researcher.I do not build models. I organise them: register, ownership, lead time.
  • Not a lawyer.I translate the law into work, together with people who write in legally watertight terms.
  • Not a visionary.I deliver something running next month. No 36-month roadmap without a first delivery point.
Track record

Proven at enterprise scale.

The numbers behind the approach: programmes, sectors, scale.

20+
years of IT transformation & programme management
8
FS institutions guided (banks, insurers, brokers)
5,000+
engineers led at a top-3 NL bank
2
pilots running in 2026
Technology partners (not client references)
AnthropicOpenAIn8nPower AutomateMicrosoft 365
We pick the right tool per use case, not the other way around.
Organisation

Who's behind it.

Small team, the owner builds along, short lines. No sales funnel.

FlowBaas

Trade name of
Fortes Fortuna Consultancy
Active since
2009
CoC number
09189284
Location
Nijmegen

Contact

Email
info@flowbaas.ai
Phone
+31 (0)6 507 447 37
LinkedIn
linkedin.com/in/nisseklaaijsen
Company page
linkedin.com/company/flowbaas
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