UX/UI Design
A UX/UI agency designs the software people actually touch: app interfaces, onboarding flows, dashboards, and checkout paths. UX covers how the product works, UI covers how it looks, and real agencies do both. Clients are software companies without enough designers, and traditional businesses whose apps and portals are losing users to friction.
How they make money
Most billing is hourly or weekly against a scoped engagement, with US senior rates typically 100 to 200 dollars per hour. Common packages have settled into recognizable shapes: a UX audit of an existing product at a fixed fee, a design sprint of one to two weeks that takes a problem from framing to tested prototype, and a redesign engagement of one to three months covering research, flows, interface design, and developer handoff.
Longer relationships shift to a retainer or embedded model, where the agency supplies a designer or small pod working inside the client's team and tools for a monthly fee. That model competes directly with hiring, and agencies price it accordingly: more than a salary run rate month to month, less than recruiting, ramping, and risking a full time hire. Research costs, participant incentives, and testing tools are usually passed through on top.
What good ones have in common
Red flags
How the category is changing
AI has cut the cost of producing screens dramatically. Prototyping tools generate plausible interfaces from prompts, and design to code pipelines shorten the distance between mockup and product. That commoditizes the rendering layer that many agencies quietly billed the most hours for, and shifts the value toward what tools do not supply: knowing which problem matters, testing with real users, and making judgment calls about flows, trust, and edge cases.
Demand is also tilting toward two specialties. First, design systems: companies want a coherent component library so internal teams and tools can ship consistent interfaces without an agency in the loop, and building that system is now a flagship engagement. Second, AI product patterns: chat interfaces, agent workflows, and confidence displays are new territory with few conventions, and agencies with real shipped examples are charging a premium for exactly that scar tissue.
Frequently asked questions
How much does a UX agency cost?
What is the difference between UX and UI design?
Do I need a UX agency or a web design agency?
What is a UX audit and is it worth it?
How long does a product redesign take?
UX firms acquire clients mostly through shipped work and word of mouth rather than marketing agencies, though funnel conversion projects often arrive through them, and their embedded designer model competes head on with staffing agencies placing product designers in the same seats.