• Post a Project

Top Connected TV Advertising Companies in London

London is a global advertising powerhouse—home to media giants in Soho, programmatic innovators in Shoreditch, and acclaimed universities such as the London School of Economics that fuel fresh marketing talent. Connected TV (CTV) advertising taps into that ecosystem, placing your brand inside the most-watched streaming apps on smart TVs.

On Clutch, every London agency listed below is vetted through our rigorous, interview-based review process, so you can trust the ratings and case studies you see. Use filters for budget, industry, or team size to quickly shortlist partners who fit your goals—whether you’re a fintech startup in Canary Wharf or a heritage retailer on Oxford Street.

Internal Resources & Nearby Options

- Explore the global list: Top Connected TV Advertising Companies

- Looking outside London? See agencies in Manchester or Birmingham

- Need sector expertise? Filter for London CTV agencies serving healthcare brands

Ratings Updated: December 4, 2025
We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust
tracking image

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

  • In-depth client interviews and ratings
  • Comprehensive project details
  • Market presence
  • Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

London Connected TV Advertising FAQs

Connected TV advertising companies in London sit at the centre of the U.K.’s media supply chain. Partnering with these local firms allows clients to unlock advantages such as: - Connection to direct relationships with British broadcasters (Sky, Channel 4) and premium publishers
- Their profound understanding of local regulations, such as the U.K. CAP Code and GDPR privacy rules
- The capacity for face-to-face strategy sessions—handy if your HQ is in the Square Mile or nearby tech clusters like King’s Cross
- Easier integration of CTV with broader London-run campaigns across OOH, social, and live events

Budgets vary based on several factors, like targeting depth, creative complexity, and inventory quality. On Clutch, London-based CTV ad agencies typically offer services priced at:

  • Charge £100 – £200 per hour for strategy or creative work
  • Set monthly media retainers from £5,000 – £25,000
  • Recommend minimum media spends of £20,000 – £50,000 per quarter to ensure statistically significant reach and frequency

Premium inventory on Sky AdSmart or ITV Hub often sits at the higher end of that range. Don’t forget to request a detailed quote and take your time reviewing it to ensure financial viability for your project.

From our directory data, leading sectors supported by connected TV advertising companies in London include:

  • Fintech and banking (driven by Canary Wharf’s finance hub)
  • E-commerce and high-street retail
  • Entertainment and gaming studios clustered around Soho
  • Travel and hospitality brands targeting inbound tourists
  • Healthcare and pharma firms working within the “MedCity” corridor

  1. Define the specific KPIs your project needs—i.e., incremental reach, ROAS, or audience lift.
  2. Shortlist promising CTV agencies on Clutch with relevant case studies in your industry.
  3. Request transparency on DSP fees and data partnerships.
  4. Meet the day-to-day account team (not just business development).
  5. Ask for an attribution model that connects CTV impressions to web or store conversions.

Comparing Clutch reviews will reveal which teams excel at communication, reporting cadence, and creative agility. Take your time going through our thought leader resources and directories to guide your search for the ideal team.

  • Guaranteed view counts without explaining inventory quality
  • Opaque “black-box” fees or unwillingness to disclose DSP mark-ups
  • No GDPR-compliant data processes or failure to provide consent strings
  • Reliance on U.S. audience data rather than U.K. or EMEA sources
  • One-size-fits-all creative with no device or platform adaptation

Essentially, red flags could lead to headaches. If you spot these traits, that’s your sign to continue your search.

Get matched with the 5 best-fit agencies for your project—in 4 minutes or less.