Web development and growth marketing, working as one.

Duology brings brand, web development and growth marketing together, so your business grows without the chaos of juggling agencies.

  • 10+ yearsbuilding websites and growth strategy
  • A+ carbon ratedthe standard we build every site to
  • One Teamfrom your first call to launch day
  • UK-basedworking with clients across Europe

Most businesses hire a developer and a marketer, then spend months translating. Duology is fluent in both - so your site is already built to grow.

Two disciplines,
one team.

Every engagement is planned across both sides from day one, so performance, content and conversion are never an afterthought.

Web Development

Fast, accessible, production-grade sites your team can actually run.

  1. Marketing site design & build
  2. E-commerce & product infrastructure
  3. Performance & Core Web Vitals
  4. CMS & content architecture
  5. Analytics & tracking setup
  6. Integrations & APIs
  7. Ongoing support & iteration

Growth Marketing

Strategy, brand and acquisition that turn traffic into revenue.

  1. Go-to-market strategy
  2. Brand identity & positioning
  3. Paid acquisition & performance
  4. Content & SEO infrastructure
  5. Analytics & reporting
  6. Email marketing
  7. Retention & lifecycle marketing

Who we work with.

  • Startups

    Launching or finding your feet - a site and growth plan built to scale with you.

  • SMEs

    Established businesses ready for a website that works as hard as they do.

  • Charities

    Accessible, low-carbon sites that reach more supporters and make every pound count.

  • Founders

    One partner across brand, build and marketing, instead of three separate suppliers.

How we work.

Built for pace

No lengthy onboarding. We're working on your goals within days, not quarters.

Transparent pricing

Flat retainers and clear project fees. No hidden extras, no surprise invoices.

Flexible by design

Retainers that absorb roadmap shifts, so priorities can change without paperwork.

Integrated thinking

Marketing and development planned together, so every page has a job to do.

Recent work.

All case studies
We needed a whole new website and marketing strategy, Duology nailed both. Our website has exceeded all our expectations and the process was seamless throughout.
Harrison S

Latest from the blog.

Read the blog

Let’s build something that grows.

Book a 30-minute call - no pressure, just a chat to see if we’re right for you.