Should we hire an agency or build an in-house design team?
Both, in sequence, for most SaaS companies. An agency is the right call for a defined push, a redesign, a design system, a new product line, or when you need senior judgment your team does not yet have. In-house wins for continuous feature design once the product is stable and the volume justifies salaries. The middle path is a subscription or embedded model, which gives you agency-quality seniority on a continuous basis without hiring, and it is why that model has become common in this category.
How do we design for the buyer and the user when they want different things?
Accept that they are different audiences and stop pretending one design serves both. The evaluation experience, demos, trials, first-run, is legitimately a different design problem from the daily-use experience, and treating them as one product is why so many B2B tools feel simultaneously overloaded and shallow. Ask candidate agencies how they have handled that split. The good answers involve separate research with buyers and users, not a single persona document.
What should a design system cost us and when do we need one?
When more than one team touches the interface, or when your engineers will keep shipping features for years after the agency leaves. Before that it is usually premature and the budget is better spent on research. The real question to ask any agency proposing one is what happens after handover, because an unmaintained design system becomes a source of inconsistency rather than a cure for it. Budget for the documentation and the training, not just the components.
Project, retainer, or subscription?
Match the model to the shape of the work. A redesign or a new product line is project-shaped and should be priced that way. Continuous feature design is subscription-shaped, and paying project rates for it is how budgets vanish. Retainers sit in between and work when you have predictable ongoing volume but also want strategic input. The mistake is defaulting to project pricing because it is what procurement understands.
What does B2B SaaS design cost?
A defined project commonly starts in the tens of thousands, with the premium studios starting materially higher. Subscription models are priced per designer per month and are usually the cheaper route past the six-month mark. European studios sit below US rates for comparable quality, which matters most on continuous engagements measured in quarters. Get quotes in both structures before deciding, because the same work can differ substantially in total cost depending on how it is packaged.
How long does it take?
Eight to sixteen weeks for research and design on a defined product or major redesign. Design systems typically run twelve to twenty weeks including documentation. Continuous engagements have no end date by design, which is correct for a product shipping weekly and wrong if you need a fixed budget approved in advance. Build a discovery phase in rather than skipping to design, since in B2B the domain complexity is usually the thing that catches teams out.
