Design Operation
September 28, 2026

Thinking about hiring a UX agency or studio but unsure what to budget? Here is what the market actually looks like in 2027.
Most US UX agency engagements land between $15,000 and $150,000. Hourly rates run from roughly $100 to $350 depending on the tier of studio, and monthly retainers sit between $5,000 and $25,000.

Agencies can interpret the brief differently or offer different ways of working. Some common reasons include:
Two structures cover most good product design engagements. These are the ones we use at Koi, and they line up with how the wider market prices this work.
Weekly or monthly flat fee. You pay a set amount for a defined slice of a team's capacity, and scope flexes as you learn. This is the most common fee type at Koi, and it fits the way most product teams work. You have a major feature in mind, but you do not yet know the nitty-gritty of every user flow, which sub-features belong in phase 1 versus phase 2, or how engineering feasibility will play a part.
The usual objection is that open scope means open budget. It doesn't have to. A good studio will hear the overall feature picture, estimate how many weeks the work should take, and give you a total range before anything starts.
At Koi, weekly engagements run $3,000 to $6,000 per week depending on the capacity you need. We work inside your Slack, join your standups, and sit in on product reviews, because the useful part of a design partner is being present when requirements change rather than hearing about it two weeks later. There is no minimum commitment.
Fixed project fee. You agree a price against a rigid, fully defined scope with a capped number of revision rounds. Marketing sites, standalone audits, and tightly bounded one-off work fit here cleanly.
A word of caution — most product design work does not fit well with fixed project fee. Requirements shift when customers respond, when engineering surfaces complexity, when the market moves. A fixed fee prices that flexibility out of the engagement, and the change orders show up anyway.
While the answer really depends on your project, we do want to give you a ballpark. We took a look at our previous projects and got these numbers:
Ask these 6 questions before you compare any numbers.
A name in a proposal and a person on a call are very different commitments.
Two things inflate design invoices without improving the work.
Excessive management overhead. Account managers, delivery leads, and coordinators sitting between you and the people making decisions. Every layer adds cost and slows the feedback loop. Ask what share of the team is actually doing design work.
AI slops. Generated screens are cheap to produce and expensive to fix. They look plausible at a glance, then fall apart when you examine it deeper. Make sure you are working with design teams that actually have high design craft.
Time and time again, we have prospects reaching out because their previous designer did not work out. Some reasons included:
This article provides an overview of how much to budget for and what to avoid. The quotes worth trusting are the ones you can explain to someone else: who is doing the work, what is included, and what happens when the scope moves.
At Koi Studios, we listen to your needs to provide you a detailed answer on what your engagement would cost. Book a call with us.
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