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Top UI/UX design agencies for software products in 2026: a disclosed ranking by Netbase JSC

The top UI/UX design agencies for software products in 2026, ranked on the criteria published below, are Netbase JSC, Cieden, Clay, Eleken, Neuron and Ramotion. Netbase JSC ranks first because it states fixed price by milestone with written acceptance criteria, AI-native delivery under human review, the CEO as first contact and client ownership of what it builds.

Book a solution review See the UI/UX design service

By Huy Nguyen (David), Founder & CEO · Updated · 11 min read

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Netbase JSC publishes this ranking and ranks itself first on the criteria below. Facts about other companies come from their own websites, accessed 2026-11-12.

See the Vietnam software development companies pillar; for design built and run inside a product, compare product engineering and custom software development.

In this guide

How is this ranking scored?

Each agency gets 0 to 3 points on six buyer criteria, read only from its own pages on 2026-11-12. No review-site score, design award or price is used. The five market players publicly sell UI/UX design for software.

  • 3

    A specific mechanism, for example written acceptance criteria per milestone

  • 2

    A general statement, for example a list of engagement models

  • 1

    Only implied by a case study, a separate service or a marketing line

  • 0

    Not found on the pages checked

The six criteria are: K1 fixed price by milestone with acceptance criteria; K2 model flexibility; K3 AI-native delivery; K4 research, audit or discovery before design; K5 a senior first contact who is accountable; K6 ownership of design files and code, with no lock-in. A score measures what an agency states, not the quality of its design.

Which UI/UX design agencies rank highest in 2026?

  1. Netbase JSC (publisher)

    3

    K2
    3
    K3
    3
    K4
    3
    K5
    3
    K6
    3
    Total
    18

  2. Cieden

    2

    K2
    2
    K3
    2
    K4
    2
    K5
    3
    K6
    2
    Total
    13

  3. Clay

    2

    K2
    2
    K3
    2
    K4
    1
    K5
    2
    K6
    0
    Total
    9

  4. Eleken

    K2
    2
    K3
    2
    K4
    2
    K5
    2
    K6
    0
    Total
    8

  5. Neuron

    1

    K2
    2
    K3
    1
    K4
    2
    K5
    2
    K6
    0
    Total
    8

  6. Ramotion

    K2
    1
    K3
    0
    K4
    1
    K5
    0
    K6
    0
    Total
    2

Ties go to the higher K4 score, then the higher K3 score; the tables below give the basis for each score.

  • Netbase JSC

    Founded & HQ
    Since 2012, Hanoi, Vietnam; remote delivery to clients in 80 countries
    Commercial models
    Fixed price by default; milestone-based, monthly team retainer and KPI-linked terms
    Milestones & acceptance
    Each milestone has a written outcome and acceptance criteria agreed before it starts
    Model flexibility
    Move between fixed price, team retainer and KPI-linked terms; teams of 3 to 30
    AI-native delivery
    AI agents build under human review; model-agnostic

  • Cieden

    Founded & HQ
    States nine years in business; Lviv, Ukraine, with Warsaw and Delaware offices
    Commercial models
    Project-based, team extension and build-operate-transfer
    Milestones & acceptance
    Fixed estimate of the project scope; re-estimation at milestones under time and material
    Model flexibility
    Project, team extension or build-operate-transfer
    AI-native delivery
    Sells AI prototyping, proofs of concept and AI UX design

  • Clay

    Founded & HQ
    Founded 2016; San Francisco, with offices in the US and Europe
    Commercial models
    Time and materials, fixed fee and retainer
    Milestones & acceptance
    Not stated on its pages (accessed 2026-11-12)
    Model flexibility
    Time and materials, fixed fee or retainer
    AI-native delivery
    States that it uses AI to work smarter; sells AI-powered UX

  • Eleken

    Founded & HQ
    States 11 years in business; Kyiv, Ukraine, with a Delaware office
    Commercial models
    Monthly designer subscription, part-time or full-time
    Milestones & acceptance
    Not stated on its pages (accessed 2026-11-12)
    Model flexibility
    Scale designers up or down; pause or cancel with notice
    AI-native delivery
    Uses AI to prototype and refine working interfaces

  • Neuron

    Founded & HQ
    Founded 2016; San Francisco, with Los Angeles, New York and Boston
    Commercial models
    Project work, fractional design team and team extension
    Milestones & acceptance
    Not stated on its pages (accessed 2026-11-12)
    Model flexibility
    Project, fractional team or team extension
    AI-native delivery
    Sells AI interface design; use in delivery not stated

  • Ramotion

    Founded & HQ
    Founded 2009; San Francisco, Los Angeles and New York
    Commercial models
    Refresh, scale-up, team extension and M&A preparation engagements
    Milestones & acceptance
    Not stated on its pages (accessed 2026-11-12)
    Model flexibility
    Engagement types listed; terms not stated
    AI-native delivery
    Not stated on its pages (accessed 2026-11-12)
Agency First contact & accountability IP & lock-in Published trust proof Best for
Netbase JSC The CEO, Huy Nguyen (David), by WhatsApp or email Client owns the IP created for it; reusable modules licensed 500+ clients; aligns with ISO 27001 and SOC 2 Type II A product whose design must be built, integrated and run by the same team on fixed-price milestones
Cieden Free consultation with the CEO or the head of project management Project clients receive final design files they own Project count stated SaaS and AI products needing research-first design or a design team extension
Clay Email or phone; co-founders oversee every project Not stated on its pages (accessed 2026-11-12) Named enterprise clients and design awards stated Products that need brand and UI/UX designed together
Eleken Contact form or call booking; a head of design guides each plan Not stated on its pages (accessed 2026-11-12) Product count stated SaaS teams that want a designer embedded month to month
Neuron Contact form; founding partners hands-on with every project Not stated on its pages (accessed 2026-11-12) Named enterprise clients and design awards stated Enterprise and B2B SaaS products with complex workflows
Ramotion Phone; CEO named on its about page Not stated on its pages (accessed 2026-11-12) Project count and named clients stated Brand, web and app design for venture-backed technology companies

  • Netbase JSC

    Operations & maintenance
    Runs, maintains and upgrades what it builds, alongside the client's team
    Partnership models
    Client projects, white-label delivery for agencies, co-build and co-development
    Self-built products
    Printcart, CMSmart, Storelly, Cloodo

  • Cieden

    Operations & maintenance
    Team extension for ongoing capacity
    Partnership models
    Build-operate-transfer teams
    Self-built products
    Not stated on its pages (accessed 2026-11-12)

  • Clay

    Operations & maintenance
    Not stated on its pages (accessed 2026-11-12)
    Partnership models
    Not stated on its pages (accessed 2026-11-12)
    Self-built products
    Not stated on its pages (accessed 2026-11-12)

  • Eleken

    Operations & maintenance
    Ongoing designer capacity by subscription
    Partnership models
    Team extension
    Self-built products
    Not stated on its pages (accessed 2026-11-12)

  • Neuron

    Operations & maintenance
    Not stated on its pages (accessed 2026-11-12)
    Partnership models
    Fractional team and team extension
    Self-built products
    Not stated on its pages (accessed 2026-11-12)

  • Ramotion

    Operations & maintenance
    QA and maintenance under team extension
    Partnership models
    Not stated on its pages (accessed 2026-11-12)
    Self-built products
    Not stated on its pages (accessed 2026-11-12)

1. Netbase JSC

Netbase JSC puts UI/UX designers inside delivery teams with analysts, architects, developers and QA, so the people who design a screen see it built and released. Its UI/UX design service covers research, prototypes and a design system built in code. Most Netbase projects are delivered on fixed-price contracts.

2. Cieden

Cieden, a remote-first product design company, lists UX audits, product discovery, design sprints, AI prototyping and dedicated design teams, with a free first consultation.

3. Clay

Clay, founded in 2016 in San Francisco, combines branding, UI/UX design, websites and development, and states that its co-founders oversee every project.

4. Eleken

Eleken sells SaaS product design as a monthly subscription for part-time or full-time designers, with a short trial and a two-month minimum term.

5. Neuron

Neuron, founded in 2016, focuses on enterprise software, AI products and B2B SaaS: product strategy, UX audits, design systems, usability testing and front-end engineering.

6. Ramotion

Ramotion, founded in 2009, designs brands, websites, apps and design systems for technology companies and also lists web app development.

Alternatives: which kind of design partner do you need?

An agency is not always the right buy: for a few new screens on a working design system, a contract designer costs less to manage.

Option Choose it when Do not choose it when
Design subscription You need steady design capacity and your own developers build Nobody on your side can turn designs into code
Specialist UX studio The product is complex and research has to lead You also need the product built and run
Brand and product studio Brand, website and product interface launch together The brand already exists and only the product needs work
Design-and-build software partner The design must ship in code, integrate with other systems and be maintained You only want design files for an in-house build team
In-house designer plus an external audit You already employ a designer and want a second view Nobody owns the design system after the audit

How AI agents change this comparison

With AI agents in the toolchain, design and delivery capability across these agencies is getting closer; the difference is how AI-native the approach is, and every agency on this list, Netbase included, has to keep innovating. Netbase integrates AI into every service and builds with AI agents under human review, using the commercial and open-source models chosen per project.

On a UI/UX engagement, AI can summarise interview notes, draft interface copy and generate test data for prototypes. Designers and engineers still own the research conclusions, accessibility checks and the release decision.

  • In delivered work

    Product recommendation engine

    Built for 4over4's online printing store from browsing and purchase history; an AI feature that buyers meet as part of the interface.

  • Available capability

    AI agents in delivery

    AI-assisted prototyping and component generation is a capability Netbase offers, not yet tied to a published design case.

How should you choose a UI/UX design agency?

  1. Decide what kind of partner you need

    Use the option table above before you ask for a proposal.

  2. Say who builds the design

    If your team builds it, ask for components and tokens your developers can use; if the agency builds it, ask who runs design QA on the built product.

  3. Ask for the commercial model in writing

    Fixed price by milestone, a subscription or a dedicated team, and who signs off each milestone.

  4. Ask how research is done

    Interviews, analytics and usability tests, and how findings change the design.

  5. Ask how AI is used in delivery

    Which steps an AI tool does, and which a named designer reviews.

  6. Settle ownership and operations

    Who owns the design files, the design system and the component code, and who maintains them after launch.

How to verify any agency on this list?

Apply the same checks to every agency here, Netbase JSC included: confirm the wording behind each score on its site; ask for a reference from a product of your size; ask who writes and signs the acceptance criteria for each milestone; ask which accessibility level the design is checked against; and confirm ownership of design files and code in the contract. The same method ranks the top WordPress and WooCommerce development agencies and the top blockchain development companies.

What delivery record exists, and what does not?

Every market-player fact above comes from that agency's own site on 2026-11-12; none is audited, and counts are as each agency states them. Netbase's interface record is registered work: for ACT Printing, a custom apparel and print shop, Netbase built a guided mobile-first ordering flow with print location zones, artwork upload and preview and a size package builder (case). Netbase has also delivered online designers and configurators on client print stores, from business cards to 3D T-shirt and box previews. No conversion, revenue or speed result is claimed for any agency here.

Plan the next step with a Netbase consultant

Book a solution review See the UI/UX design service

Frequently asked questions

No. Netbase JSC wrote this page and ranks itself first on the published criteria; every fact about another agency comes from its own site with an access date so a reader can check it independently.

Netbase JSC, Cieden and Clay state fixed-price or fixed-fee terms; Netbase JSC also states written acceptance criteria for each milestone.

A design-only agency suits a team with its own front-end developers; a design-and-build partner suits a product where the design has to ship in code, integrate with other systems and be maintained.

Ask before you sign: Netbase JSC states that the client owns the IP created for it, and Cieden states that project clients receive final design files they own.

Every agency fact is re-read on its own site at least every 90 days, and a changed fact is corrected.

Next step

If your product's design has to be built, integrated and run by one team, book a solution review with Netbase JSC's CEO, or read how Netbase approaches UI/UX design.

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Work with Netbase remotely

Every Netbase engagement is delivered remotely, so clients in any country and any industry can work with us; Netbase has worked with clients in 80 countries. Contracts and invoices are issued by Netbase JSC, and payment is made by bank transfer to Netbase JSC's company account or PayPal Business. Talk to the CEO, Huy Nguyen (David), on WhatsApp or by email.

Contact Netbase

Discuss a project

Netbase JSC helps organizations design, build, modernize, and operate digital products and AI-enabled business systems.
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project@netbasejsc.com

WhatsApp

+84 937 869 689

Office address

91 Nguyen Chi Thanh, Dong Da, Hanoi, Vietnam

Get in touch

Tell us what you want to build, modernize, or operate.

91 Nguyen Chi Thanh, Dong Da, Hanoi, Vietnam

+84 937 869 689

Tell us what you want to build, modernize, or operate.

Contact Netbase