Most UX problems aren’t invisible. They’re just unexamined. The drop-off in the onboarding flow, the support tickets about a feature nobody can find, the checkout abandonment rate that’s been “on the roadmap” for two years. A UX audit turns those patterns into a prioritized list of what to fix and in what order.
The companies below do this well.
1. Linkup ST
Website: linkupst.com
Location: Lviv, Ukraine / Wrocław, Poland / New York, Wilmington, USA
Founded: 2015
Linkup ST runs UX audits as diagnostic work, not checkbox exercises. The output isn’t a report of violations — it’s a map of where the product loses users and why, ranked by business impact.
Their UX audit services combines heuristic evaluation, user flow analysis, and behavioral data review. The Emotional-Functional Framework they apply in research carries over here: functional failures show up in task completion rates, but the emotional layer — where doubt accumulates, where users lose confidence in the product — requires a different lens. Both get examined.
Audit findings connect directly to the design team. That’s not standard. Most audits end in a document. Linkup ST’s end in design decisions, which is the only way findings actually change anything.
Their broader UX research practice and usability testing service run alongside audits when the scope requires it — when you need to validate audit hypotheses with real users before committing to redesign work.
Red Dot, A’ Design, Webby, Apple recognition. 200+ projects. 98% client retention. 4.9/5 on Clutch.
2. Nielsen Norman Group
Website: nngroup.com
Location: United States
Founded: 1998
NN/g wrote a significant portion of the methodology that UX audits are based on. Jakob Nielsen’s heuristics are still the most widely cited framework in the field. The practical implication: their auditors aren’t applying someone else’s checklist, they’re applying a framework they built and have been refining for 25+ years.
Enterprise and large-scale digital products. Not the right fit for fast-moving startups that need decisions in days — but for complex platforms where the audit scope itself requires expertise, the depth is hard to match.
3. Maze
Website: maze.co
Location: Global (remote-first)
Founded: 2018
Maze approaches audits through continuous testing rather than point-in-time evaluation. The platform combines prototype testing, live product testing, and survey tools in one environment. Audit findings aren’t a snapshot — they’re a baseline you can test against as you make changes.
For product teams that want to move from “we ran an audit” to “we track UX quality over time,” the tooling and methodology are built around that workflow specifically.
4. Baymard Institute
Website: baymard.com
Location: Denmark / United States
Founded: 2010
E-commerce UX research and auditing. Baymard has run more controlled studies on checkout flows, product pages, search, and navigation than any other research group in that vertical. Their audit methodology is built on that proprietary research base — not general UX principles applied to e-commerce, but findings derived from watching thousands of users interact with e-commerce specifically.
Relevant only for e-commerce. For that vertical, the depth is unmatched.
5. Eleken
Website: eleken.co
Location: Ukraine
Founded: 2015
SaaS product UX audits with a product design background. Eleken’s audit work connects directly to redesign — the same team that identifies the problems can fix them. That eliminates the translation layer between audit findings and design execution.
Ukrainian delivery, which means competitive rates for work quality that competes with Western European firms.
6. UX Cabin
Website: uxcabin.com
Location: India / Global
Founded: 2018
Structured audit methodology covering information architecture, interaction design, visual hierarchy, and accessibility. UX Cabin provides written audit reports with severity ratings and prioritized recommendations — a format that works well for teams that need audit findings presented to stakeholders before design work begins.
7. Userbrain
Website: userbrain.com
Location: Austria
Founded: 2013
Continuous UX testing platform with audit capabilities. Weekly user tests on your live product, with video recordings and written feedback. The ongoing model catches regressions that point-in-time audits miss — when a new feature ships and breaks an existing flow, it shows up in the next test cycle, not six months later.
How to Choose
Audit scope determines methodology. A heuristic evaluation takes days and requires no users — it’s an expert assessment against established principles. A behavioral audit requires analytics access and takes longer. A full audit combining both is more expensive but produces more actionable output. Know which one the engagement is offering before comparing proposals.
Deliverable format matters. Some audit outputs are designed to be read by designers. Others are structured for stakeholder presentations with business impact framing. Ask to see a sample deliverable before engaging — the format tells you a lot about whether the firm has done this for teams like yours.
Audit without implementation is a risk. A 40-page audit report that sits in a folder costs the same as one that changes what gets built. Before engaging, ask how previous audit clients used the findings — specifically what changed in the product as a result.
For audits integrated with ongoing research and design — where findings move directly into redesign work — explore ux research firms that combine audit, research, and design in one practice are the lower-risk option.
Lynn Martelli is an editor at Readability. She received her MFA in Creative Writing from Antioch University and has worked as an editor for over 10 years. Lynn has edited a wide variety of books, including fiction, non-fiction, memoirs, and more. In her free time, Lynn enjoys reading, writing, and spending time with her family and friends.
