Strategic Design for Digital Growth – A London-Based Web & SEO Agency

Overview

yellowball is a results-driven web design and digital marketing agency based in London. Known for combining creative storytelling with performance marketing, yellowball builds websites that not only look visually impressive but are also optimized for conversions and long-term growth. With a core focus on SEO, user experience, and bespoke development, the agency delivers tailored digital solutions that scale with its clients’ goals. Whether for B2B platforms, eCommerce businesses, or SaaS products, yellowball crafts experiences that connect brands with their audience in meaningful ways.

Location & Global Reach

Headquartered at Borough Yards, 13 Dirty Lane, London SE1 9PA, United Kingdom, yellowball serves clients across the UK including regions such as London, Manchester, Birmingham, and Edinburgh. In addition to its strong domestic presence, yellowball has supported a wide range of international clients through its flexible, remote-ready workflow, offering global delivery with local precision.

Services & Capabilities

Web Design (UI/UX)

yellowball specializes in building custom WordPress and WooCommerce websites that are clean, intuitive, and brand-driven. Their designs emphasize clear navigation, aesthetic appeal, and user engagement, tailored to reflect the unique identity of each client.

Web Development

Using a modern tech stack including HTML5, CSS3, JavaScript, and WordPress, the agency delivers scalable, secure, and SEO-optimized websites. Their developers follow best practices for speed, accessibility, and responsive layouts across all devices.

Branding & Visual Identity

Beyond web design, yellowball helps brands establish strong visual foundations. This includes logo design, color systems, typography, and complete visual guidelines that align digital presence with brand vision.

eCommerce & SaaS

From Shopify and WooCommerce to complex SaaS platforms, yellowball builds robust eCommerce websites with secure payment integrations and user-friendly product management. Their SaaS interface designs focus on clarity, usability, and long-term scalability.

Mobile Optimization & Accessibility

All websites are built mobile-first, ensuring responsive performance across devices. Accessibility is prioritized to meet global compliance standards, making every user journey smooth and inclusive.

SEO and Digital Strategy

As an SEO-led agency, yellowball integrates on-page and technical SEO into every web project. They also offer standalone SEO and PPC campaigns to drive traffic, leads, and measurable ROI.

Ongoing Support

Post-launch, clients benefit from performance tracking, regular updates, CMS training, and optional retainers for continuous growth and site maintenance.

Design Process & Methodology

yellowball applies a structured, collaborative approach to every project:

• Discovery & Strategy: In-depth sessions to align on goals, audience, and structure

• Wireframes & Prototypes: Low and high-fidelity visual flows for validation

• Design & Development: Seamless transition from concept to functional code

• Testing & QA: Cross-browser, mobile, accessibility, and SEO checks

• Launch & Support: Deployment, training, and ongoing maintenance options

Their workflow is agile and transparent, ensuring milestones are met and feedback is efficiently incorporated.

Client Industries & Notable Projects

yellowball serves a diverse client base, including startups, eCommerce businesses, financial services, education providers, legal firms, health tech companies, and SaaS startups. Their work includes featured projects for UK-based real estate companies, fitness platforms, and B2B consultancy websites. The agency has also partnered with high-growth brands and established enterprises to deliver strategic digital overhauls.

Why Choose yellowball?

Choosing yellowball means working with a team that blends creative vision with technical expertise. With in-house designers, developers, and marketers, the agency delivers full-cycle digital services under one roof. Their focus on performance, user experience, and strategic growth ensures clients receive scalable, conversion-optimized solutions. From bespoke website builds to long-term SEO and digital marketing, yellowball supports brands every step of the way.