Before you pour services profit into building a product, it pays to model the numbers honestly — margins, cashflow and what each path is really worth. We'll help you see it clearly.
You've built a good agency. The work is strong, clients keep coming back, and the team delivers. But there's a ceiling you can feel: every extra pound of revenue needs another pair of hands, and every busy month is a scramble to staff up. Then someone shows you a SaaS business — software that gets built once and sold thousands of times — and the appeal is obvious. Revenue that doesn't depend on hiring. A valuation that makes agency multiples look quaint. A product that sells while you sleep.
It's a genuinely tempting idea, and plenty of agencies make the leap. But "build a SaaS" is one of the most expensive sentences in business, and the honest answer to "which scales better internationally?" is: it depends what you're optimising for. Neither model is automatically better. They scale in completely different ways, with different cashflow, different risk and very different demands on you as an owner.
This piece is a commercial comparison, deliberately light on tax — for the VAT, place-of-supply and structuring detail of selling across borders, see our pillar guide on how digital service businesses scale globally. Here we focus on the strategic question: where does each model win, and what does it actually take to get there?