Marketing Agencies

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Marketing Agency

A marketing agency plans and runs the work that grows demand - brand strategy, performance media, content, CRM and the measurement that ties them together. The agencies on this page are ranked by a composite of editorial standing, client retention, recent project output and engagement signals. Some are full-service; many specialise by channel (performance, social, content) or by model (B2B, DTC, retail).

How to choose

Match the agency to the metric you need to move.

Start from the metric you need to move - awareness, acquisition cost, retention, pipeline - because a brand shop and a performance shop are both "marketing agencies" but optimise for different outcomes. Check for measurement maturity (can they attribute results, not just produce assets), the seniority of the day-to-day team, and references from clients still active 12+ months later. Retainer-heavy agencies signal repeatable value; project-only shops suit one-off launches.

Good to know

Frequently asked questions

01What does a marketing agency do?

Marketing agencies plan and run the activities that build demand: brand and go-to-market strategy, paid media (search, social, programmatic), content and SEO, email and CRM, creative production, and analytics. Full-service agencies cover the whole stack; specialists focus on a single channel or audience.

02How much does a marketing agency cost?

Project work typically runs $10,000-$100,000 depending on scope; ongoing retainers commonly fall between $5,000 and $50,000 per month for mid-market brands, and higher for performance accounts with large media budgets, where agencies often also take a percentage of spend.

03Retainer or project-based?

Retainers suit always-on programmes (performance, content, social) where momentum compounds. Projects suit defined deliverables - a launch, a campaign, a rebrand. Most brands run a retainer for steady-state work and commission projects for spikes.

04Full-service agency or specialist?

Full-service agencies reduce coordination overhead and keep strategy and execution aligned. Specialists go deeper on one channel and often outperform on it. Larger brands frequently run a lead full-service agency plus specialist partners for performance or social.

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Portfolio
Reel

Sydney, Australia

 Currently No Client Rating

  • Marketing Agency

Portfolio
Reel

KT13 0NY, United Kingdom

 Currently No Client Rating

  • Marketing Agency

London, United Kingdom

 Currently No Client Rating

  • Marketing Agency

London, United Kingdom

 Currently No Client Rating

  • Marketing Agency

London, United Kingdom

 Currently No Client Rating

  • Marketing Agency

London, United Kingdom

 Currently No Client Rating

  • Marketing Agency




Portfolio

Birmingham, United Kingdom

 Currently No Client Rating

  • Marketing Agency
  • Digital Marketing
  • Automotive, Building & Carpentry

Portfolio
Reel

London, United Kingdom

 Currently No Client Rating

  • Marketing Agency

Portfolio

London, United Kingdom

 Currently No Client Rating

  • Marketing Agency

Hertfordshire, United Kingdom

 Currently No Client Rating

  • Marketing Agency
  • Branding
  • Construction, hospitality, energy

Worcestershire

 Currently No Client Rating

  • Marketing Agency