AdvertisingUnited KingdomLondon
Finding the right advertising agency in London is easier when you have verified client reviews to guide you. Explore 78 advertising agencies in London, including top-rated PHD Media and YOU Agency, with real client feedback covering quality, responsiveness, and results. With an average rating of 4.3★, 540 client reviews, budgets starting from $5k/month, you have real data to compare. Compare pricing, team sizes, and industry focus to find the agency that fits your goals and budget in 2026. No paid placements.
78 agenciesAvg rating 4.8★2,746 client reviews
London has 78 advertising agencies listed on Pick an Agency.
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Showing 61-78 of 78
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#61
Based in London, PHD Media specializes in media buying, advertising, and digital marketing solutions tailored to client needs. The agency offers comprehensive social media marketing services with a proven track record of delivering results.
#62
Based in London, YOU Agency delivers advertising solutions backed by 22 client reviews and a 4.5-star rating. The team specializes in creating targeted campaigns that connect brands with their intended audiences.
#63
Based in London, this agency delivers advertising, media buying, and social media marketing to clients seeking strategic creative solutions. With 67 reviews and a 4.6/5 rating, Saatchi & Saatchi London maintains a consistent track record of client satisfaction.
#64
Based in London, UNRVLD offers advertising and digital marketing services backed by 26 client reviews averaging 4.9 out of 5 stars. The agency delivers strategic campaign development and digital solutions tailored to client objectives.
#65
Based in London, BARK.London specializes in performance-driven advertising strategies that focus on measurable results. With 24 client reviews and a 4.3/5 rating, the agency delivers targeted campaigns designed to optimize ROI for businesses of all sizes.
#66
Based in London, Ogilvy UK delivers comprehensive advertising solutions across traditional and digital channels. With a 4.4/5 rating from 74 client reviews, the agency brings strategic expertise to brand campaigns and integrated marketing initiatives.
#67
With four decades of creative excellence, BBH London delivers integrated advertising and digital marketing solutions across traditional and emerging channels. Based in the UK capital, this highly-rated agency combines strategic media buying with innovative campaigns for global brands.
#68
With 41 five-star reviews, Grey delivers comprehensive advertising solutions from their London base. The agency partners with brands to develop strategic campaigns that drive measurable results across multiple channels.
#69
Based in London, EssenceMediacom's UK and Global HQ delivers comprehensive media buying, advertising, and social media marketing services to clients worldwide. The agency maintains a 5.0-star rating across 148 client reviews.
#70
3rd floor, 1 Wardour St, London W1D 6PA, UK
#71
Goat is an award-winning global influencer marketing agency that combines human and creator-first content with connected media to help brands influence everywhere. They aim to shift perceptions, achieve cultural relevance, and create impactful content.
#72
London, United Kingdom · Team 1-10 · 5 services
End-to-end demand generation embedded in your startup to turn your marketing into a revenue engine. ToJupiter partners with B2B SaaS startups as an embedded team. We tighten your marketing stack, run paid and ABM on a lean budget that converts, ship lead-gen webinars and memorable events, and work hand-in-hand with sales to align on target accounts, opportunities and wider strategy. Expect quick wins after day 7 and a repeatable growth playbook after 6 months. We work exclusively with B2B SaaS startups, mostly Seed to Series B with deep expertise in cybersecurity, Martech, Fintech and AI. Here's why GTM leaders love working with us: Strategy and execution is handled the founders (4x Demand Gen Leader + Exited SaaS Founder) in addition to a small group of SaaS veterans. We prioritise quick wins in the first month while working ont he wider strategy Embedded with your team, tight Slack or Teams comms We're not limited by scope and often get involved in wider GTM strategy such as messaging, positioning, ICP, etc Qualified pipeline is our north star metric, so we always focus on CRM reporting tied to marketing activties Lean stack setup, clear vendor negotiations, typical tool savings near 50% - Sales alignment baked in, weekly pipeline reviews and follow-ups Read more
#73
London, United Kingdom · Team 500+ · 5 services
SGK is a global packaging and brand experience company. From idea to implementation, we deliver packaging solutions and brand experiences that give brands the freedom to speak louder, scale faster and grow stronger. Marketing simplified Brands amplified Value delivered
#74
London, United Kingdom · 1 service
Medius House, 2 Sheraton St, London W1F 8BH, UK
#75
London, United Kingdom · Team 51-200 · 5 services
We are ROAST. ROAS & Growth Agency, driving ROAS in the new era of discoverability. ROAST are the discovery explorers – helping brands get found everywhere discovery happens. We specialise in Media Strategy & Planning, Data & Measurement, Organic Performance, Paid Search & Social, Media Activation and Digital & Traditional Media. ROAST work in collaboration with our sister agency Kitty. UK's Best Small Companies to Work For 2018-2024 | Most Effective Agency 2020 | Best Digital Agency 2019 Our goal is simple, to increase the return on your advertising spend (ROAS).We do this by simplifying the problem and moving forward with the right performance marketing tactics targeting the correct audience, at the right time. We extract solutions from data science along with experimentation and apply it where it will be most valuable. By using digital data at scale, combined with the very best industry tools and tech, we can build highly successful Performance Marketing campaigns for you, as well as new ways you can use that data.How we work with you: Being independent allows us to be flexible with our clients. Digital Marketing moves quickly and we can change our strategy and tactics just as quickly.We make sure we build you the correct team, formed around your business. This team will be selected as the right team to drive success for YOUR business.We never build our teams around certain departments, we make them client centric. This way your challenge and goal are always the focus.We form partnerships built on TRUST.Word of mouth and strong client relationships have been the driving force of our agency growth from day one. With trust laying heavily at the heart of all of our partnerships, we are fortunate enough to see our clients return to and refer us, time and again.With decades of industry experience, we know which brands work best with us, if we don't think we are right for you, we will let you know. We always strive to build meaningful and genuine connections.Read more
#77
London, United Kingdom · Team 11-50 · 1 service
Wildish & Co. operates from London as a dedicated advertising partner for businesses seeking strategic creative solutions. With a team of 11-50 professionals and strong client feedback, the agency delivers results-driven campaigns across multiple channels.
#78
London, United Kingdom · Team 1-10 · 1 service
London-based OCD Studio specializes in advertising solutions for businesses seeking focused, detail-oriented creative work. With a dedicated team and strong client feedback, they deliver precise campaigns tailored to your brand's needs.
78 agencies
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04 · FAQ
We currently list 78 Advertising agencies in London, United Kingdom, with an average rating of 4.8★ across 2,746 reviews. Browse their profiles and reviews to find the right partner.
Compare agencies based on client reviews, campaign results, industry expertise, and pricing. Look for agencies in London with experience in advertising and a track record of delivering strong ROI.
Pricing varies by scope and agency size, and most agencies don't publish rates. Among the Advertising agencies in London listed here that disclose a minimum budget, project minimums start at $5,000/month. Request quotes from multiple agencies to compare.
Yes. Many Advertising agencies in London work with remote clients. While a local agency can offer in-person meetings, remote collaboration is standard in the industry and gives you access to a wider talent pool.
Rankings are computed, never sold. No agency can pay to appear higher, and we take no money from the agencies listed. The default order uses a credibility-weighted score rather than the raw star average: a rating only earns its full weight once there is a real volume of reviews behind it, so a perfect 5.0 built on two or three reviews does not outrank a strong score backed by hundreds. That correction matters, because most agencies in this index sit at or near a perfect 5.0, which makes the star average on its own close to meaningless. See the full ranking methodology.
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