Skip to main content

Proven User Experience and Interface Design Services

UX/UI design for faster growth and lower costs.

AI driven applications are your fastest route to optimizing operations and growing revenues. We help you with Figma, Sketch, Adobe XD.

  • 275+Clients
  • 15+Years of Experience

Buff

UX UI Design
Mobile app interface designed by Vimi for Buff, shown on two phones

“Vimi’s designs are intuitive, lovely, and add real character to our app....”

Ron BarCTO, Buff

Trusted by the organizations that shape daily life

  • Samsung
  • SCG
  • True
  • Sumitomo
  • Dunlop
  • UNDP — United Nations Development Programme
  • Kirloskar
  • Amata
  • KTC — Krungthai Card

CEO · Results You Can Trust

Why invest in user experience?

A 2025 IDC study found 70% of APAC organizations expect agentic AI to disrupt business models within the next 18 months, yet firms struggle to translate this momentum into user-friendly applications, even though studies have shown that:

88% of users are less likely to return after a poor experience, and 32% of customers will abandon a brand after just one bad interaction.

Every US $1 invested in UX delivered US $100 in return — an ROI of 9,900%.

Well-designed interfaces can raise conversion rates by 200%, while superior UX lifts them by 400%.

Cost of Poor UX

  • 88% Won’t Returnof users are less likely to return after a poor experience.
  • 32% Brand Abandonmentof customers will abandon a brand after just one bad interaction.
  • Neglecting UXdirectly erodes retention, trust, and revenue.

Better UX / UI Quality

  • UsabilityIntuitive flows & interactions.
  • ClarityClear hierarchy & messaging.
  • Conversion FlowOptimised user journeys.

Business Impact

  • +200% ConversionWell-designed UI.
  • +400% ConversionSuperior UX.
  • $1→$100 ROI (9,900%)Per dollar invested in UX.

CTO · Proven UX/UI on Demand

Scale your design with proven UX/UI on demand.

At VIMI, we know projects live and die by numbers, and we have a 15-year proven track record of designs that deliver ROI while accelerating time-to-market. Best of all, you’ll be reducing expenses significantly:

53%lower monthly cost than hiring a senior designer in-house

Get Your Quote
Junior (1–3 yrs) Save 49%
In-house $3,830
Vimi $1,950
Senior (4–6 yrs) Save 53%
In-house $5,440
Vimi $2,560

Monthly designer rates

CFO · Flexible Delivery to Fit Your Needs

Choose an engagement that fits your budget.

When you choose us as your design provider, you have the option to hire us for project work, or on an ongoing retainer basis. In both models we supply a brief template and capability checklist to help you articulate your goals and align internal stakeholders. A well-defined brief avoids miscommunication and wasted spend.

Fixed-Scope Projects

Ideal when you have a clear brief and need certainty on budget and schedule. We prepare a detailed scope-of-work and provide a fixed cost. This model suits upgrades of existing platforms, discrete UX research engagements or defined UI deliverables (e.g. “Give me 3 options for this screen in our app”).

Retainer Partnership

Recommended for exploratory or long-term initiatives where requirements may evolve. You secure an agreed number of designer days each month, giving you flexibility to explore alternative flows, iterate on prototypes or conduct additional research without renegotiating contracts (e.g. “Be the design resource for our desktop product-owner”).

Get Your Quote

Proven Design Delivery Since 2010

Why us?

Our team has a proven record for designing successful websites and applications for globally recognized brands, corporations and NGOs. Our experience across a variety of sectors, gives us a nuanced understanding of stakeholder needs and expectations.

Designed for Decisions

Our delivery ensures senior leaders see tangible returns and focuses on executive priorities:

  • Risk management
  • Lifecycle costs
  • Time-to-value
  • Regulatory clarity

Data-Driven Execution

Our designs are grounded in evidence, not guesswork. We use analytics, heatmaps and user tests to validate decisions and iteratively improve.

Transparent Communication

We commit to communication, dedication and excellence. You will receive regular progress updates, have access to all artefacts and participate in decision points.

VIMIContinuous Delivery Model
Faster time-to-value Confident Executive Decisions Insights feed next strategic decisions Reduced delivery and compliance risk Measurable ROI and performance gains

How VIMI Delivers

Our UX UI services.

Our core capability is providing UX/UI design as a managed service. Think of us as your outsourced design department, staffed by veterans who understand your sector and speak the language of engineers and financiers alike. You can engage us for a defined project or retain us as an ongoing partner.

UX research session with user journey maps

UX Research & Strategy

Stakeholder & Persona Analysis

We identify your user groups, document their goals and motivations, and map their journey through your value proposition. The outcome: design decisions grounded in real behaviours rather than assumptions.

Work with us to learn:

  • Who are your stakeholders?
  • What are their representative personas?
  • What are their goals and motivations in relation to your UVP?

Process & User-Flow Mapping

We translate complex operational processes into clear user flows and documentation. This clarity is essential when projects involve 20 – 30 decision-makers and cross-border compliance.

Discuss Your Brief
Wireframing and interaction design in progress

UX Implementation

Wireframes & Interaction Design

We create schematic wireframes for every screen and state of your application, while applying insights from behavioural science to engage and encourage users to complete tasks.

User Testing

We run moderated tests with representative users to validate assumptions and reduce time for implementing fixes.

Give Your Brief
UI design system components on screen

UI Design & Systems

Visual Design & Prototyping

Our team designs polished interfaces that reinforce your brand and comply with the latest best practices and compliance requirements for your selected platforms – iOS, Android, web, kiosk, etc.

Design Systems & Handover

We build scalable UI libraries and documentation that streamline development. This reduces downstream rework and ensures consistent experiences across every touchpoint.

Discuss a Project
UX writing and interface copy review

UX Writing & Content

Microcopy and Interface Language

We deliver precise interface microcopy that reduces support tickets, shortens onboarding, and lowers the risk of costly user errors in regulated or high-stakes workflows.

Onboarding and Tutorial Copy

We help new users reach core workflows through structured first-use guidance that shortens time-to-value, reduces drop-off during activation, and reduces the need for support and training sessions.

Discuss a Brief

Have a project in mind?

Tell us what you need — and get your quote directly from our Managing Director.

“...Good design looks cool, but GREAT design uses psychology to make us behave in predictable patterns...”

Mike DarnellManaging Director
Schedule a Call

How Does It Work?

Proven processes and timelines.

We follow a structured delivery workflow refined over 15 years. Each phase is designed to maximise ROI and minimise risk.

  1. Introduction, Planning and Outline

    Within 2 weeks of your brief

    We meet to understand your objectives, constraints and benchmarks for success. You receive a discovery summary, proposed team structure and a clear timeline.

    Goals

    • Understand your business and design objectives
    • Identify current situation and the benchmarks for success
    • Clarify what results will make a meaningful impact for your organization
    • Establish initial rapport and buy-in with your stakeholders
    • Introduce our team & working methodology

    Deliverables

    • Discovery summary brief
    • Plan summary & schedule for your UX / UI project
    • Proposal
  2. Setting Up

    1 – 2 days

    After your requirements are clarified and agreed, and contracting and payments are sorted, we’ll set up the shared accounts and repositories necessary to support your project.

    Goals

    • Create the shared working environment: drive folders, Smart Task project, Figma account, etc
    • Introduce stakeholders to the project’s agreed governance and work processes
    • Collate briefing materials and artefacts in the shared project repository

    Deliverables

    • Shared drive folder containing all existing project artefacts
    • User accounts as needed
    • Shared project on the agreed project management tool
  3. UX / UI Design

    As agreed during estimation

    Once you approve the work plan, and our team has access to your materials, we’ll start working on your project. We use weekly sprints for review and task assignment. If your project has a steering committee that approves works, we’d like to meet them once every two weeks for catch-up and approvals.

    Goals

    • Designers create and develop project artefacts matching the brief, agreed SOW, and process
    • Steering committee engagement and approvals
    • Full project transparency and visibility for your team at all times

    Deliverables — depending on the scope of work this may include:

    • Choice architecture
    • Process diagrams
    • Personas empathy maps
    • User stories
    • Visual designs
    • User interface design for iOS / Android / Desktop / Kiosk / Etc.
    • Design process documentation
  4. UX / UI Project Handover

    2 – 5 days, depending on scope

    When it’s time to handover the project to your team, we’re happy to offer training and documentation as needed. Alternatively, you can retain us as your UX / UI partner.

    Goals

    Enable smooth delivery and handover of design artefacts and project materials to your team(s).

    Deliverables — depending on the scope of work this may include:

    • Project documentation & change logs
    • Training session

Ready to start?

Schedule a call with Mike Darnell, Managing Director — we’ll walk you through the plan for your project.

Schedule a Call

Your UX UI Delivery Team

Who’s in your UX/UI project team?

One of our managing partners will head your project team & will guarantee you get the great UX & UI you need. Depending on the scope-of-work in your brief, your delivery team may include any, or all, of the following:

Project Manager

The team’s work will be coordinated by one of our Project Managers. They’ll lead your project and serve as your primary point of contact. They’re responsible to:

  • Ensure your project proceeds according to the agreed brief.
  • Keeping you informed of progress
  • Getting stakeholders’ sign-offs as needed.

Typically, our project managers will check in with you for a formal meeting once a week, and will manage day-to-day communication via email and chat.

UX and UI Designers

Our design team has years of experience working on projects that have generated millions of dollars in revenue, and, in the case of apps, reached millions of downloads. We’ll ensure your project is easy-to-use, compliant with design best practices, and promotes your company image as a credible and professional provider. Our team includes:

  • Behavioral designers
  • User experience designers
  • User interface designers
  • Graphic designers
  • Information architects
  • UX writers
  • Copywriters

Managing Partner

For design projects, we allocate one of our managing partners to chair your project team to provide overview, guidance and supervision. We not only guarantee you’ll get your deliverables as agreed, but also commit to go the extra mile to support your business via our network and partners.

We commit to build scalable and consistent UX/UI systems, so your product becomes easier to use, more engaging, and more effective at achieving business goals.

Get Your Quote

FAQ

Questions? We have answers.

Straight answers to the questions B2B buyers actually ask about UX/UI design.

Schedule a Call with Mike Darnell
How is VIMI's UX/UI service different from hiring an in-house designer?

VIMI’s UX/UI service gives you senior-level design capability without the fixed cost, recruitment time, or retention risk of a full-time hire. You can expect to reduce designer costs by 49–53%, while gaining access to a multi-disciplinary team that includes UX researchers, interaction designers, visual designers, and UX writers. The service scales up or down month-to-month in line with your project pipeline.

How do you measure the ROI of UX/UI work?

During discovery we’ll define agreed benchmarks for improvement (e.g. conversion rate, task completion rate, time-on-task, etc.) Improvement will be measured in comparison to existing baselines measured by heatmapping and engagement tracking tools.

Which platforms and tools do you design in?

Our designers work primarily in Figma and deliver production-ready specifications for iOS, Android, web, and kiosk platforms. If your team uses a specific tool or has existing design files, we adapt to your environment rather than require migration.

Can you work with our existing brand guidelines, design system, or tech stack?

Yes. Most of our engagements extend existing assets rather than replace them. We audit what you have at the start of the project, identify gaps or inconsistencies, and work within your constraints. Where we recommend changes, we document the commercial rationale and implementation cost so your team can decide.

Who from VIMI will work on our project?

Your project is chaired by one of VIMI’s managing partners and coordinated day-to-day by a dedicated project manager. Depending on scope, your delivery team may include UX researchers, interaction designers, visual designers, UX writers, and information architects. Weekly check-ins are standard; monthly strategic reviews include a managing partner.

What happens after the designs are delivered?

We offer post-handover support on a retainer basis for teams that need ongoing design capacity, user testing during rollout, or iteration based on live-usage data.

15 Years of Design for Decisions

Our story.

VIMI supports B2B organizations with pragmatic, proven design, brand and marketing services informed by decision-maker psychology and extensive execution experience.

Established in Bangkok in 2010 by digital industry veterans, Virode Imtarnasan and Mike Darnell, VIMI has delivered hundreds of engagements across Thailand and global markets.

  • 275+clients
  • 15+years
  • 2010est. Bangkok
Schedule a Free Consultation More about us
The Vimi team collaborating around a meeting table

Our Customers Say

What decision makers say about working with Vimi.

Verbatim, from the people who signed off on the work.

“…The Vimi team delivered an intuitive site redesign that enabled us to better promote our carbon reduction solutions and strengthen our brand, and remain our preferred partner for digital marketing services since. We're well impressed with the team and the service we receive…”

Olivia FussellCarbon Credit Capital

“…Our global clientele expect us to operate at the peak of efficiency & discretion, & we expect the same from our providers. Vimi delivered our brand design & website, & remain our preferred provider because we know we can rely on them to be there whenever we need them…”

Joshua RotbartManaging Partner, J. Rotbart & Co.

“…Vimi stood out with their results oriented approach, good governance, & strict adherence to deadlines. I look forward to working with them again…”

Edward MoralesBusiness Director – ECommerce, Minor Corp

“…VIMI have been perfectly efficient in understanding our market segment & positioning… Results are significant & that is an achieved objective…”

Olivier GippetVice President International Development, Locatel

“…Their team's enthusiasm, experience and market knowledge ensured I came in on budget and on time, could not be happier…”

Gareth KerrFounder, evRiderz

“…Been getting great feedback! Brilliant work by you guys! Thank you!…”

Amit SachdevFounder, Stroll Guam

“…This is the first time I'm dealing with a partner whose work I can accept immediately. Vimi knows UX very well…”

Gerald LimAssistant VP Digital & Innovation, Central Food Retail Group

“…Here at GPS Legal we always like to say that we give Clear Direction in a Complex World. We feel that this is exactly the benefit the Vimi team give us on the projects they handle for us. Vimi are creative, effective, and easy to work with. We continue to work with them and have suggested them as a provider to our contacts…”

Lawrence ChaneyManaging Partner, GPS Legal

“…The experience of working with Vimi on the development of my executive leadership coaching website was exceptional, marked by professionalism, creativity, and a deep understanding of the client's vision…”

Hugh Van EsHughvanes.com

Free consultation

Schedule your free consultation.

Talk directly with our Managing Director about your goals — a frank, no-obligation conversation. We'll always tell you the truth, even when it's difficult.

Map showing the Vimi office at Atlas Parkworks, Ratchadaphisek Road, Bangkok