Marc van Neerven

Independent Software Business Consultant

Fractional CTO 💡 Top Startups Voice⚡ Helping startups make better SaaS

You’ve got vision.

I help you turn it into something that actually ships, scalable, beautiful, and built to last.

As a Fractional CTO, I help founders and leadership teams:

Turn strategy into execution: translating boardroom vision into working code and real traction.

Build lean, high-performing tech teams: in-house, remote, or hybrid, with just the right balance of structure and speed.

Adopt AI the right way: embedding an AI mindset into products, workflows, and decision-making before it’s too late.

Create SaaS that sells itself: through a Product-Led Growth approach that puts value before friction.

Design for humans, build for scale: applying design thinking, solid architecture, and open-web standards to grow sustainably.

My work is transformational: when I leave, your company keeps moving faster, smarter, and with more clarity than before.

I’m not a slide-deck strategist. I still code, design, and build proof-of-concepts myself, focusing (and advocating for) the Open Web, and native cloud to prove what’s possible.

You want your SaaS to grow leaner, smarter, and more human.
Let’s build it.

Startup Expert

Writing blogs about the life of a CTO at Startups and Scaleups. 

Has the world gone mad? 🤯

I just read Paul Hebert's deep dive on the Shadcn radio button ¹.

It’s thoughtful. Detailed. Carefully engineered.

And it perfectly illustrates the problem.

We are writing React components, layering abstractions, wiring state machines, and debating micro-patterns…
…to recreate something the browser does natively (and very well).

What a radio button should be:

<input type="radio" name="beverage" value="coffee" />

That’s it.

Accessible. Keyboard-navigable. Screen-reader compatible. Form-compatible. Zero JS required.

And yet the modern stack says:
- Hide the native control
- Rebuild it with divs and spans
- Reimplement focus logic
- Synchronize state with React
- Hope accessibility survives the refactor

All to achieve… styling.

But styling is not a JavaScript concern.

Styling should come from your Design System, or at least from CSS that lives in a shared asset and is cached separately.

And styling radio buttons has long been extremely easy with pure CSS.

The deeper issue isn’t Shadcn however.
It’s that we’ve normalized rebuilding HTML in JavaScript.

When your design system requires a component layer to render a radio button, something fundamental shifted.

Not everything that looks modern is progress.

Sometimes the most radical move in 2026 is to trust the platform again.

The browser ships a radio button.
Maybe we should start there.

Article in the comments.

¹ Shadcn components have become a sort of automatic goto for LLM agents - together with React and Tailwind 😔...

#puredesignsystem #webstandards #shadcn

Fractional CTO 🚀 AI Mind, SaaS Soul, Human Heart

RevsUp

At RevsUp (revsup.io), we empower high-growth companies to take charge of their revenue forecasting. If managing complex spreadsheets or dealing with unreliable forecasts is holding your business back, we offer a smarter way forward.

RevsUp integrates your most critical data—from CRM systems, accounting software, and contract databases—into one streamlined platform. By leveraging key metrics like sales cycles, contract values, and conversion rates, our solution delivers accurate, real-time revenue forecasts. Whether you’re a sales leader or a CFO, RevsUp equips you with the insights needed to drive performance and achieve your targets.

It’s time to leave behind guesswork and outdated tools. With RevsUp, you gain the confidence to make informed, data-driven decisions that propel your business forward.

Get your revenues up with RevsUp.

Oprichter

2ACC3L

Financial forecasting is van groot belang. Voor toonaangevende ondernemingen is een betrouwbare voorspelling een essentieel onderdeel in hun streven naar waardecreatie. Het management gebruikt deze voorspellingen om de prestaties te stimuleren, kansen en risico's te identificeren en als basis voor communicatie met stakeholders zoals aandeelhouders. Zonder betrouwbare forecasts is de kans groot dat belangrijke kansen en risico's worden gemist.

Ondanks de aantoonbare voordelen van accurate forecasts blijven veel organisaties echter worstelen met dit bedrijfskritische proces. 2ACC3L helpt je hierbij. Of je nu een start-up bent, of een bedrijf dat al tientallen jaren bestaat, of je een high-tech onderneming bent of dat het geld wordt verdiend met traditionelere producten, wij ondersteunen je bij het opstellen van een forecastmodel dat geschikt is voor jouw specifieke situatie.

Vancis B.V.

Vancis is een aanbieder van hoogwaardige ICT-diensten. Wij verbinden organisaties door slimme ICT-oplossingen en oneindige capaciteit. Innovatief, snel, met persoonlijke aandacht en zonder grenzen.

Chief Financial Officer

RDC inMotiv

RDC biedt data en slimme applicaties aan de hand waarvan bedrijven in de automotive branche hun klanten sneller, beter en gerichter kunnen benaderen.

FirstFLO

Gespecialiseerd in het herstructureren en insourcen van financiele en/of administratieve standaardprocessen.

Founder

Diverse opdrachtgevers

Diverse opdrachtgevers waaronder Europcar, ABMY, Inrail, Spoorflex, Ansprex, Licentec. Werkzaamheden uitgevoerd gerelateerd aan finance & control.

Zelfstandig finance professional

MeesPierson

Financial consultant

Founder | Revenue forecasting & insights | Get your revenues up with RevsUp

I’ve spent over 20 years as a financial professional, building countless budgets and forecasts. But as anyone in finance knows, the struggle is real—especially when it comes to forecasting accurately and having those frustrating back-and-forth discussions with sales.

For years, Excel was my go-to tool. I’ve logged more hours in Excel than I’d care to admit. But after one too many crashes, I realized: Excel is great for many things, but financial forecasting isn’t one of them. It’s just not built for real-time collaboration, data integrity, or handling large datasets without falling apart.

That’s when the idea for RevsUp was born. I couldn’t find a tool that did what I needed—so I decided to build one. RevsUp is a user-friendly SaaS platform that helps businesses create smarter forecasts and gain actionable insights. No more endless Excel updates, no more guesswork—just accurate forecasts that help drive predictable revenue.

If any of this sounds familiar and you’d like to chat, feel free to connect with me. Or follow me for more insights on revenue forecasting!

taplio

The Battle

Marc van Neerven

Frank Custers

Followers

Posts

Engagements

Likes

Performance ScoreMarc van Neerven's LinkedIn Performance

Ready to grow your LinkedIn presence?

taplio

The Battle

Marc van Neerven

Frank Custers

Followers

Posts

Engagements

Likes

Performance Score.css-goub6s{font-size:var(--chakra-fontSizes-md);font-weight:500;color:var(--chakra-colors-gray-600);display:block;margin-top:var(--chakra-space-1);}Marc van Neerven's LinkedIn Performance

Ready to grow your LinkedIn presence?

Performance ScoreMarc van Neerven's LinkedIn Performance