Top Digital Marketing Strategist London

Searching for a Top Digital Marketing Strategist London who can plan, build and measure growth end to end? Alex Costin is a data-driven digital marketing expert with 17+ years of experience designing and executing international campaigns across English, French, Italian, Spanish and other markets.

Why Alex Costin stands out as a digital marketing strategist

Alex combines full-stack capabilities—market research, SEO, PPC, web development, social, analytics and automation—into a single, accountable service. This end-to-end approach removes silos, shortens feedback loops and ensures every tactic supports the same revenue goals.

His work is defined by outcomes: reducing PPC costs by up to 90% through higher Quality Scores, achieving #1 rankings in as little as 11 days, and building penalty-free websites with 100/100 PageSpeed using Drupal and Bootstrap.

A strategist who connects insight to execution

Alex describes himself as an unconventional market, customer and competitors research analyst. He maps opportunities, behaviour trends and SWOT insights, then sorts findings by importance so decision-makers can act on what truly moves revenue.

Unlike generic agency reports, his research blends primary sources such as surveys and interviews with secondary data from industry reports and databases. The output is a clear roadmap that informs product, positioning, content and paid media.

Core digital marketing services

• Market and competitor intelligence: SWOT analysis, gap mapping and opportunity scoring to prioritise high-ROI segments and channels.
• SEO strategy and technical audits: ON-PAGE SEO audits to maximise rankings, plus OFF-PAGE backlinks from a personal network of high-authority sites.
• Content strategy and production: Topic clusters, content briefs and SEO content for blogs, landing pages, case studies and thought leadership.
• PPC and paid media: Google Ads and Microsoft Advertising strategies that increase Quality Score and reduce cost per click while improving conversion rates.
• Web design and development: Fast, accessible sites on Drupal/Bootstrap with 100/100 PageSpeed, clean schema and mobile-first UX.
• Social media and influencer networks: Planning and coordination of brand social activities, leveraging owned networks of over 50,000 Twitter and 1,000,000 Facebook fans.
• Analytics and performance dashboards: Monitoring in Google Marketing Platform, Microsoft Advertising and Adobe Experience Cloud to track ROI and refine strategy.
• Marketing automation and CRO: Workflow automation, funnel optimisation and A/B testing to turn existing traffic into more revenue at lower cost.

Proven results across sectors

Alex has delivered measurable wins for diverse clients: increasing leads from around 20 to around 600 per week for a hospitality brand; growing Oxfam e-commerce sales by 500% by applying best practices; and helping a health insurer outrank a UK market leader through targeted ON-PAGE and OFF-PAGE SEO.

He has also trained in-house teams and public bodies—including Barcelona's city council—on SEO, SEM and social, enabling sustainable, self-sufficient growth after engagement.

London-based, EU-wide impact

Positioned as a Top Digital Marketing Strategist London, Alex works across the UK and EU, supporting brands that need multilingual reach and cross-market consistency. His experience spans 10 worldwide markets and 100+ successful projects, with 2,000+ first-page keywords and 60+ websites created.

This breadth of exposure means he can spot patterns others miss—whether it is an emerging channel, a shifting customer expectation or a competitor vulnerability—and translate them into concrete actions.

How an engagement works

Engagements start with a discovery call to clarify objectives, constraints and success metrics. Alex then runs a rapid audit of your market, customers, competitors, site and paid channels, followed by a prioritised roadmap that ties insights to specific initiatives.

Delivery can be hands-on (building research assets, content, sites and campaigns) or advisory (training your team to execute). For brands seeking speed and certainty, he offers performance-led packages designed to cut waste, accelerate rankings and turn traffic into revenue.

Skills and tools

Core skills include HTML/CSS, Drupal/Bootstrap, Google Marketing Platform, Microsoft Advertising, Adobe Creative Cloud, Meta Business Suite and automation tools like Hootsuite, Buffer and email marketing platforms. This stack ensures strategy is not only insightful but operationally usable across web, ads and social.

Ready to upgrade your digital marketing engine?

If you need a Top Digital Marketing Strategist London who can connect insight to execution across the full marketing stack, Alex Costin offers a single point of accountability for growth. From audit to implementation, his strategies are designed to reduce risk, focus spend and deliver measurable ROI.

Contact Alex to book a call back via his site and start with a clear, evidence-based plan for your next quarter of growth.