In today’s landscape, where digital experiences define business success, choosing the right UI/UX partner is more critical than ever. Whether you’re a founder launching a game-changing product or a C-level exec overseeing enterprise transformation, the agency you pick needs to deliver more than just “nice visuals.”
So, we did the research. Across the US and India, we analyzed dozens of agencies and shortlisted the top 10 UI/UX companies to watch in 2025-26 — factoring in verified reviews, design innovation, behavioral strategy, and business impact.
And topping that list? Leo9 — a creative force redefining how users interact with digital products through the lens of behavioral science.
1. Leo9 – Where Design Meets Behavioral Intelligence
HQs: Mumbai, India & San Francisco, USA
Founded: 2012
Clutch Rating: 4.9/5 ⭐
Clients: Disney, TATA, Axis Bank, ICICI Bank
Core Focus: Emotion-driven UX, Behavioral Strategy, Product Design, Brand Experience
Why Leo9 Leads:
Leo9 isn’t your typical UI/UX design firm — they’re behavior architects. By infusing user psychology into every design decision, Leo9 creates digital experiences that don’t just look good — they guide decisions, build habits, and drive conversions.
They stand out for one key reason: design that understands people. From onboarding flows to micro-interactions, every touchpoint is backed by principles from behavioral science, neuroscience, and emotional design.
“They don’t just deliver screens — they deliver outcomes.”
— Founder, Fintech App, via Clutch
What Makes Them Different:
1. Cognitive Design Frameworks
2. Conversion-Focused UX Flows
3. Emotional Journey Mapping
4. Business-Aligned Brand Systems
Whether you’re building your MVP or reimagining a legacy system, Leo9 brings a unique blend of design psychology, strategic thinking, and world-class execution.
Check out their case studies: Leo9 Case Studies
2. IDEO – Design Thinking Pioneers
IDEO set the gold standard in design thinking. With a portfolio that spans industries and continents, they’ve helped companies like Ford and IKEA rethink entire customer ecosystems.
Why they’re here: Deep human-centered design expertise and innovation frameworks — though often more suited to enterprise-level innovation labs than startups needing fast execution.
3. Frog Design – Strategy-Driven Innovation
Frog is a go-to for businesses tackling complex digital transformations. Their strength lies in aligning design with long-term business growth, especially in regulated industries.
Still, if you’re after agile, behavior-driven, product-first design — Leo9 often offers a more nimble and UX-psychology-focused approach.
4. UX Studio – Research-Fueled UX Design
UX Studio takes research seriously. They’re great at user testing, feedback loops, and iterative improvement. Ideal for mid-size SaaS firms that want user data to drive their roadmap.
However, for startups needing both emotional depth and behavioral triggers in UX — Leo9’s edge in psychology gives them the upper hand.
5. Momentum Design Lab – Digital Product Experts
🌐 https://www.momentus-group.com/
Based in Silicon Valley, Momentum helps enterprises modernize user journeys. Their sweet spot is transforming complex systems into intuitive products.
Best for: Enterprise UX overhauls.
Better alternative for leaner builds and behavior-driven design: Leo9.
6. NetBramha Studios – Bold Designs for Indian Startups
NetBramha is respected in India’s startup scene for their visual craft and innovation. They excel at transforming MVPs into polished products.
That said, Leo9’s design DNA goes deeper — pulling from user psychology and market behavior to craft designs that sell, not just show.
7. Clay – Ultra-Polished Visual Design
If you want flawless UI and top-tier branding, Clay delivers. Their interfaces are sleek, elegant, and enterprise-ready.
Downside? Heavy emphasis on visuals vs. strategic UX depth. Leo9 brings both the visual and psychological design punch.
8. Lollypop Design – UI/UX That Pops
Lollypop’s strength lies in collaboration and scalable designs. Their visual identity work is especially notable in retail and FMCG sectors.
Ideal for: Visual revamps and Indian B2C apps
For deeper behavioral strategy and cognitive flows: Leo9 still takes the crown.
9. Thence – Structured UX for Digital Growth
Thence is a rising name in structured UX strategy, especially for SaaS and finance. Their strength lies in process and delivery.
However, Leo9’s added layer of emotion mapping and decision-focused design creates longer-lasting impact.
10. Branex – Cross-Platform UI/UX
Branex handles design for startups and SMBs across the US. Their core USP is speed and versatility.
Good for: Quick MVP launches.
Best for: Founders who need behavior-first, scalable product ecosystems? Still Leo9.
Why Behavioral UX Is the Future (And Why Leo9 Is Ahead in Top 10 UI/UX Agencies)
In 2025-26, UX is evolving from just being usable to being emotionally intelligent. The future belongs to brands that can:
✅ Understand user behavior
✅ Nudge action subtly through design
✅ Build habit-forming experiences
✅ Align design with business growth
Leo9 is ahead of the curve here — leading with strategy, powered by behavioral science, and grounded in clean, effective design.
Ready to Design Smarter? Contact Leo9.
If you’re looking for a UI/UX partner who speaks business, emotion, and user behavior fluently — Leo9 is your go-to.
Contact Leo9
Explore Case Studies
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FAQs for Top 10 UI/UX Agencies
Q: What makes behavioral UX so powerful?
A: It taps into how users think and feel, making designs not just functional, but truly persuasive.
Q: How do I evaluate if an agency understands behavioral science?
A: Look for agencies that talk about cognitive triggers, emotional design, and journey mapping — like Leo9.
Q: Can Leo9 work as an outsourced design team for our internal product team?
A: Absolutely. Many of their clients treat them as an embedded design intelligence team.
External Resources
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