10 Responsive UX Design Agencies: [Comparison]

Bricx

Bricx is a founder-led UX design agency exclusively working with B2B & AI SaaS startups to get more signups, increase conversions, and reduce user churn.

We have a running list of 25+ UX case studies of successfully completed website & product design projects for our clients.

Our clients vouch for our impeccable visual design taste along with deep product knowledge resulting in standout products with a delightful user experience.

Bricx is a trusted design partner of fast-growing SaaS backed by Y Combinator, Accel, Sequoia, Riverside Ventures, Techstars, Greyloft, Blume Ventures, and other reputed venture firms.

We’re a niche group of SaaS UX specialists who enjoy working with startups who like to move fast, test new ideas, and iterate even faster.

If that’s you — feel free to book a call with one of our founders, and they’ll be able to guide you through how we can collaborate.

1. Employees-to-Client Ratio (Bandwidth): 2:1

2. Process Maturity: High

3. AI Design Experience: High

4. Client Communication (Meetings + Daily Updates): PM-led updates + Slack access

5. App/Web Dev Support: Frontend + Webflow-ready handoffs

6. Office Culture: Remote-first, async-friendly

Baunfire

Baunfire is one of the most recognized responsive UX design agencies in the US, with a studio based in San Jose.

They are known for building elegant, marketing-focused websites that feel consistent across devices without sacrificing creativity. Their work blends sleek animations, clear hierarchies, and scalable design systems—making them a strong choice for SaaS and product-led growth brands.

What sets Baunfire apart is their ability to strike a balance between bold aesthetics and functional responsiveness. They ensure websites remain fast-loading, SEO-friendly, and aligned with brand identity while maintaining usability across desktops, tablets, and mobiles.

For B2B and SaaS teams seeking a responsive partner with design flair, Baunfire is a reliable pick.

1. Employees-to-Client Ratio (Bandwidth): 3:1

2. Process Maturity: High

3. AI Design Experience: Medium

4. Client Communication: Biweekly meetings

5. App/Web Dev Support: Yes

6. Office Culture: San Jose studio-based

Zajno

Zajno brings a cinematic design approach to digital products, making them stand out among responsive UX design agencies.

Their expertise lies in crafting immersive websites and mobile applications that tell strong brand stories while adapting seamlessly across device types. Zajno’s designs often leverage motion and interaction details to enhance storytelling, yet they never compromise on performance or responsiveness.

They are especially effective for startups and creative brands where design identity is as important as usability. Their work ensures that whether a user visits on mobile or desktop, the experience feels equally engaging and visually polished.

Zajno’s hybrid studio setup gives them agility and global reach, making them a great fit for ambitious consumer products.

1. Employees-to-Client Ratio (Bandwidth): 2:1

2. Process Maturity: Medium

3. AI Design Experience: Low

4. Client Communication: Weekly design reviews

5. App/Web Dev Support: Yes

6. Office Culture: Creative hybrid

Ramotion

Ramotion is a design and branding powerhouse with deep experience in responsive UI systems.

They have partnered with numerous VC-backed startups and mid-market companies to deliver scalable web and app designs that look premium and function flawlessly across devices. Their work often merges branding with UX, ensuring that design consistency extends into mobile and tablet interfaces.

Unlike many responsive UX design agencies that only focus on front-end layout, Ramotion integrates responsive thinking into full design systems. This helps clients maintain visual quality while scaling product features and content.

For fintech, SaaS, and consumer brands aiming for pixel-perfect execution, Ramotion is a trusted partner.

1. Employees-to-Client Ratio (Bandwidth): 3:1

2. Process Maturity: High

3. AI Design Experience: Low

4. Client Communication: Weekly syncs

5. App/Web Dev Support: Yes

6. Office Culture: San Francisco-based hybrid

Netguru

Netguru is one of the largest global design and development firms, known for its end-to-end delivery capabilities.

As one of the leading responsive UX design agencies, Netguru provides scalable design-to-code workflows that ensure every product feels consistent across platforms. Their team leverages modular design systems, accessibility best practices, and modern responsive frameworks to support both startups and enterprise clients.

What makes them unique is their ability to bridge design and development seamlessly. Their squad-based approach ensures tight collaboration between designers, developers, and product owners, reducing rework and accelerating launch timelines.

For companies looking for a reliable, enterprise-grade design partner, Netguru stands out as a comprehensive solution.

1. Employees-to-Client Ratio (Bandwidth): 4:1

2. Process Maturity: Very High

3. AI Design Experience: High

4. Client Communication: Squad-based

5. App/Web Dev Support: Yes

6. Office Culture: Hybrid (Europe)

Clay

Clay has established itself as one of the premium responsive UX design agencies for enterprise and high-growth clients.

They are known for their luxurious, pixel-perfect digital products where responsiveness is not an afterthought but a core principle. Their work spans global brands and startups alike, often blending motion, accessibility, and microinteractions into responsive ecosystems.

Clay specializes in aligning design with business objectives—making their process ideal for enterprise-grade websites and SaaS platforms. They also work closely with marketing and leadership teams, ensuring every responsive design decision supports branding and revenue goals.

For high-visibility projects where flawless execution matters, Clay is a go-to partner.

1. Employees-to-Client Ratio (Bandwidth): 4:1

2. Process Maturity: High

3. AI Design Experience: Medium

4. Client Communication: Biweekly formal updates

5. App/Web Dev Support: Yes

6. Office Culture: Studio

Wandr

Wandr is a boutique UX agency specializing in SaaS dashboards, B2B tools, and enterprise workflows.

They stand out among responsive UX design agencies because of their focus on complex applications that must work seamlessly across desktops and mobile. Their expertise lies in ensuring that even the most data-heavy dashboards remain usable and intuitive when scaled down to smaller screens.

Wandr’s lean, async-first approach allows them to collaborate efficiently with distributed teams. They are particularly effective for early-stage and mid-size SaaS products that need speed, clarity, and responsive-first thinking without sacrificing detail.

For teams tackling workflow-heavy products, Wandr offers both strategic UX architecture and practical responsive design expertise.

1. Employees-to-Client Ratio (Bandwidth): 2:1

2. Process Maturity: Medium

3. AI Design Experience: Medium

4. Client Communication: PM-led async

5. App/Web Dev Support: No

6. Office Culture: Remote-first

Uptech

Uptech is a product-focused design studio that helps startups scale their mobile and web presence from day one.

As one of the more startup-friendly responsive UX design agencies, they prioritize MVP delivery while ensuring scalability. Their process includes user research, component reuse, and validation testing across multiple devices—making them well-suited for SaaS and consumer platforms.

Their team excels in creating UX flows that feel consistent, whether experienced on mobile or desktop. By focusing on both design systems and performance, Uptech ensures their work is not only visually aligned but also technically ready for growth.

For founders building mobile + web-first products, Uptech is a strong, hands-on partner.

1. Employees-to-Client Ratio (Bandwidth): 2:1

2. Process Maturity: High

3. AI Design Experience: Medium

4. Client Communication: Biweekly sprints

5. App/Web Dev Support: Yes

6. Office Culture: Remote