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List of TOP 31 Advertising Agencies in London. Discover the most skilled marketing agencies from our community to outsource your marketing to.
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With data-driven SEO strategies and advertising campaigns, we help businesses impact the metrics that matter most, from traffic to revenue. Use the power of search on any platform to boost your sales.
London, England, United Kingdom +4
Advertising, Programmatic Advertising +36
Home Services, Insurance +29
Starting from $1,000
Grow your client base & drive revenue with Elit-Web, an award-proven digital marketing company that has helped thousands of brands attract traffic, win leads and online transactions. Unlock online growth with data-driven digital solutions today!
London, England, United Kingdom +4
Advertising, Native Advertising +63
Home Services, Insurance +29
Any
SEO and AI search strategy and implementation without the guesswork guesswork. Data driven and agile project plans that deliver measurable results.
London, England, United Kingdom
Advertising, PPC +11
Ecommerce, Real Estate +3
Any
At Norsu, not only do we provide a solid ROI, we agree KPIs and metrics with all of our clients. We pride ourselves on communication and expert guidance.
London, England, United Kingdom
Advertising, Retargeting and Remarketing +23
Ecommerce, B2B Services +3
$0 - $5,000
Bird, a multi-award winning Digital Marketing Agency, transforms businesses through data-driven strategies, innovative solutions, and unparalleled expertise to achieve digital excellence.
London, England, United Kingdom +4
Advertising, Programmatic Advertising +49
Home Services, Insurance +29
Any
Ink Digital is a UK SEO agency delivering transparent, ROI-led growth. UK Search Awards 2025 winners. We specialise in technical SEO, content strategy and digital PR, plus PPC and web design and development for travel, hospitality, ecommerce & B2B.
London, England, United Kingdom
Advertising, PPC +6
B2B Services, Restaurants +1
Starting from $2,500
$30,000
2024
24 months
Challenge
The business was stepping into digital marketing for the first time and lacked the foundation to scale effectively. There were no optimized landing pages for advertising, and the website’s low speed was increasing costs and harming ad performance. Additionally, reaching a niche B2B audience required a tailored strategy to stand out in a space often dominated by B2C competitors.
Solution
We built custom landing pages aligned with targeted ad groups and improved website speed to enhance ad health and lower costs. Our team launched integrated campaigns across Google, Meta, and LinkedIn. Using A/B testing and continuous optimization, we crafted tailored ad messages, visuals, and targeting strategies to capture high-intent traffic and convert them efficiently.
Result
The holistic ad strategy delivered powerful outcomes. Brand visibility increased by 3,338%, and conversion rates rose by 2,933%. Clicks jumped over 1,200%, while cost-per-click dropped by 75%. These results reflected the impact of well-structured campaigns, optimized creatives, and precise audience targeting that turned visibility into measurable business value.
Sierra Six Media is a Drum Recommends agency delivering SEO, PPC, web design, and branding with precision and transparency. We align strategies to business goals, integrating seamlessly with clients to drive accountable, long-term growth.
London, England, United Kingdom
Advertising, PPC +7
Ecommerce, B2B Services +1
$2,500 - $5,000
Boost your brand visibility and get quality inbound leads looking for expert help.
Top Notch Dezigns is an award-winning digital agency that is passionate, dedicated, and committed toward delivering excellent results. We take pride in our outstanding communication skills, and make it a point to exceed our clients’ expectations.
London, England, United Kingdom +2
Advertising, Native Advertising +44
Ecommerce, Manufacturing +3
$1,000 - 2,500
More Traffic, More Customers, More Revenue. We can help you succeed, no matter your business size. 800,000+ First Page Rankings $41,762,176+ Revenue Generated for Clients. Beat the Competition with ROI-Focused Digital Marketing. Free Analysis & Quote
London, England, United Kingdom +4
Advertising, Programmatic Advertising +46
Home Services, Insurance +29
Any
We are a strategic marketing partner to B2B organisations - focused on helping our clients grow through data-led insight, intelligent strategy, and hands-on collaboration.
London, England, United Kingdom
Advertising, Native Advertising +23
Insurance, Fintech +3
$2,500 - $10,000
Since our inception in 2018, we've empowered businesses to find their voice, make decisive choices, and seize opportunities in an ever-evolving industry.
London, England, United Kingdom +4
Advertising, Native Advertising +63
Home Services, Insurance +29
Any
We're a digital marketing agency for growth brands. We use creative, data-driven, strategic thinking and the latest innovations across all things search to deliver consistent monthly growth to our clients.
London, England, United Kingdom
Advertising, Programmatic Advertising +7
Fintech, Real Estate +1
$5,000 - 10,000
$450
2022
12 months
Challenge
The client was looking for an SEO and PPC expert to help their new online store compete with established leaders in the Indian healthcare market. While they had multiple product URLs, these pages were not optimized for search visibility or paid performance, limiting their ability to generate traffic and conversions. As a result, they needed a digital marketing partner to improve rankings, drive targeted traffic, and scale revenue.
Solution
The engagement began with a comprehensive audit of the client’s e-commerce healthcare store, where we identified key gaps in SEO structure, on-page optimization, and paid campaign readiness. Based on our findings, we implemented a strategic plan that included optimizing product pages, improving keyword targeting, and strengthening the site’s overall search visibility. We also executed a focused backlink strategy to build domain authority and improve organic rankings.
Result
Achieved 5x ROAS through PPC campaigns, along with significant growth in organic traffic, keyword rankings, and conversions - resulting in increased overall sales performance.
We're an agency that understand the complexities of both marketing and running a business. Our approach blends data analytics with consumer psychology to deliver campaigns that resonate and drive revenue growth.
London, England, United Kingdom +1
Advertising, PPC +6
Ecommerce, Legal Services +3
$1,000 - 2,500
We help Ambitious and Challenger brands realise their goals online. Working for them and with them to forensically improve their Search & AI optimisation and target new opportunities.
London, England, United Kingdom +2
Advertising, Display Ads +34
Ecommerce, Manufacturing +3
Starting from $1,000
Nautilus Marketing is a full service digital marketing based in London, boasting a varied national & international client base. We pride ourselves on our customer service and excellent workforce. Our Nauti Nerds are unlike any nerd out there,
London, England, United Kingdom
Advertising, Native Advertising +41
Legal Services, Dental +2
$1,000 - 2,500
We are a global digital marketing and communications agency, empowering visionary technology companies to change the world for the better by bringing clarity through ideas, influence, and impact.
London, England, United Kingdom +2
Advertising, Native Advertising +50
Insurance, Fintech +9
Starting from $5,000
From marketing strategy, website building and PPC, to TikTok Shop, social media management, and analytics. We provide a full suite of digital marketing services to take your business to the next level.
London, England, United Kingdom
Advertising, Display Ads +23
Ecommerce, Health & Wellness +3
Starting from $1,000
GA Agency is an award-winning international digital marketing agency helping brands all over the world grow their business and revenue in the online space.
London, England, United Kingdom
Advertising, Programmatic Advertising +21
Ecommerce, Food & Beverages +3
Starting from $2,500
$25,000
2025
12 months
Challenge
An ecommerce brand was struggling to scale Meta Ads profitably. Rising CPMs and ad fatigue were driving down return on ad spend, while audience targeting had become too broad. The objective was to stabilise performance and improve revenue efficiency without increasing monthly ad spend.
Solution
We refreshed creative with product-led static and video assets, restructured campaigns around clear funnel stages, and tightened audience segmentation. Retargeting was rebuilt to prioritise high-intent users, supported by ongoing creative testing and performance optimisation.
Result
Return on ad spend increased by 58%, while revenue from Meta Ads grew by 41% over the campaign period. CPA reduced consistently as creative performance improved, delivering sustainable growth without increasing media spend.
We are the digital growth experts. As an award-winning provider of digital marketing and websites to leading brands, we’ve worked for more than a decade with one key goal in mind - to get businesses more customers online.
London, England, United Kingdom +2
Advertising, Programmatic Advertising +41
Fintech, Healthcare & Hospital +3
Any
For ambitious people who want to grow their business, Nerd is an award-winning marketing agency for a digital age. This dedicated team will help you to better understand your customers, create cool digital things and sell more of your stuff.
London, England, United Kingdom
Advertising, Retargeting and Remarketing +7
Healthcare & Hospital, Food & Beverages +1
Starting from $1,000
Zeo Agency, established on December 12, 2012, is recognized as one of the largest digital marketing agency in Turkey. The agency offers a range of services including SEO, GEO, AEO, SEM, performance marketing, content marketing and generative AI.
London, England, United Kingdom +2
Advertising, Display Ads +21
Fintech, Healthcare & Hospital +3
Starting from $2,500
CRKLR are a performance marketing agency with a difference; we put content as well as data at the heart of performance. We optimise and amplify your content across paid and organic channels from search to social to deliver exceptional results.
London, England, United Kingdom
Advertising, Programmatic Advertising +7
Ecommerce, Fashion Retail +1
Starting from $2,500
From Ad Spend to Revenue. We Scale eCommerce & B2B Brands. Since 2024, we’ve partnered with leading global brands to accelerate revenue growth through high-performance paid ads and conversion rate optimisation.
London, England, United Kingdom
Advertising, Display Ads +7
Ecommerce, IT +1
Starting from $1,000
We help brands show up in the right place, at the right time, to the right people, with data driven campaigns. Our performance driven services include Search & Organic Growth, Paid Digital Media, Performance Creative, Media Strategy and more.
London, England, United Kingdom
Advertising, Native Advertising +46
Home Services, Insurance +28
Starting from $2,500
$30,000
2025
6 months
Challenge
The client, a UK-based B2B services company, relied heavily on inbound leads but struggled with inconsistent volume from Google Ads. Previous campaigns suffered from high CPAs, poor keyword intent alignment, and budget leakage on non-converting searches. The goal was to increase qualified leads while reducing wasted spend.
Solution
We rebuilt the Google Ads account around high-intent commercial keywords, refined match types, and introduced negative keyword controls. Ad copy was rewritten to better qualify users upfront, and conversion tracking was improved to focus on genuine leads rather than soft actions.
Result
Within three months, cost per lead reduced by 42% while lead volume increased by 67%. Conversion rates improved significantly, and spend was reallocated toward top-performing campaigns, delivering more predictable and scalable lead generation without increasing overall budget.
ROAST are a full-service media planning & buying agency, named after our obsession with achieving ROAS for our clients.
London, England, United Kingdom
Advertising, Programmatic Advertising +7
Insurance, Fintech +1
Starting from $5,000
Garreck is a full-service media consultancy providing solutions from traditional media through to digital (SEO, SEM, programmatic especially). Based in the UK, we have worked with some key clients in a variety of market sectors for over 20 years and
London, England, United Kingdom
Advertising, Native Advertising +31
Fintech, Healthcare & Hospital +3
Starting from $2,500
A full-service agency based in Melbourne, Smith Brothers Media® has extensive expertise within the key areas of Marketing, Creative and Tech with over 10 years in the industry.
London, England, United Kingdom
Advertising, Programmatic Advertising +34
Ecommerce, Legal Services +3
$2,500 - 5,000
The Digital London is a prominent UK-based branding and digital marketing company, specialising in delivering innovative solutions to a diverse range of industries.
London, England, United Kingdom
Advertising, PPC +7
B2B Services
$1,000 - 2,500
GTech Digital delivers smart digital solutions since 2014, offering website development, mobile apps, online marketing, and graphic design. We focus on quality, innovation, and helping businesses grow successfully.
London, England, United Kingdom
Advertising, PPC +31
Ecommerce, Real Estate +3
$0 - $10,000
We’re one of UK’s leading specialist digital agencies, combining our expert knowledge with a commitment to data driven optimisation and the latest technology to help clients get amazing results on digital marketing initiatives. TMI is a Premier
London, England, United Kingdom
Advertising, Native Advertising +24
Ecommerce, Gambling +1
Starting from $2,500
$24,000
2023
12 months
Challenge
Madison Brook International was facing high customer acquisition costs (CAC) and inconsistent lead generation through its PPC campaigns. Their goal was to increase visibility, generate quality leads, and reduce CAC.
Solution
We focused heavily on Quality Score, decreasing CPC and improving Ad Rank, which reduced lost impression share (more traffic, less cost). We refined keywords & bids, optimised ads, and adjusted audience targeting for better-quality conversions, with continuous A/B testing for ongoing improvements.
Result
Our strategy led to a +45% increase in click-through rates (CTR), a +35% reduction in cost per conversion, and a +40% increase in conversion rate. These changes significantly boosted their lead quality and reduced their overall marketing spend.
TEAM LEWIS is a global marketing agency built to inspire growth. It provides a full spectrum of marketing, communications and digital services to deliver tangible business impact for clients and causes.
London, England, United Kingdom +1
Advertising, Native Advertising +41
Ecommerce, B2B Services +3
Starting from $2,500
These companies don’t have a physical office in the area but work and have clients there.
Since 2020, Nodus Works has successfully implemented over 250 Shopify and Shopify Plus projects in Türkiye as a trusted Shopify Partner agency.
Active in United Kingdom
Advertising, Native Advertising +7
Ecommerce, B2B Services +1
$1,000 - $2,500
Helping Growth-Focused Businesses Scale with High-Impact Digital Strategies At Tiga Digital, we help ambitious businesses grow faster by accelerating online sales and brand visibility through data-driven marketing.
Active in United Kingdom
Advertising, PPC +4
Fintech, IT +1
$0 - $2,500
Cremicro is a digital marketing agency specializing in SEO, Google Ads, performance marketing, social media, and web design. With global offices, it delivers innovative, data-driven solutions backed by partnerships with Google, Meta, Yandex, Semrush.
Active in United Kingdom
Advertising, Programmatic Advertising +7
IT, Manufacturing +1
Any
Shopify Plus Partner agency focused on scaling ecommerce brands through performance marketing, lifecycle systems, and conversion-focused UX. Byte Digital helps brands turn traffic into predictable, measurable revenue on Shopify.
Active in United Kingdom
Advertising, Retargeting and Remarketing +7
Ecommerce, B2B Services +1
$1,000 - 2,500
Social Direct is a Brisbane digital marketing agency specialising in SEO, Google Ads, social media marketing and web design. As trusted Google and Facebook Marketing Partners, we help businesses of all sizes increase traffic and grow online.
Active in United Kingdom
Advertising, PPC +7
Fintech, Ecommerce +1
Starting from $1,000
We are vetted digital marketing agency in India, offering a 360-degree SEO process plus data-driven, AEO, GEO & PPC, backlinks and content marketing. We boost online visibility, drive measurable growth, and help brands scale globally.
Active in United Kingdom
Advertising, PPC +6
Ecommerce, IT +1
Any
Candidsky is a leading digital marketing agency specialising in data-driven strategies across SEO, PPC, and Digital PR. Our in-house team delivers integrated solutions that boost your brand's online presence, driving traffic, visibility, and growth.
Active in United Kingdom
Advertising, PPC +7
Ecommerce, B2B Services +1
Starting from $2,500
Performance focused PPC agency delivering measurable ROI for growing businesses. 15+ years expertise across Google, Meta, and Microsoft Ads. No long contracts, just transparent results. 5-star rating and 471% average enquiry growth
Active in United Kingdom
Advertising, Display Ads +7
Ecommerce, Dental +1
$0 - $5,000
🏆 𝗧𝗢𝗣-𝗥𝗔𝗧𝗘𝗗 𝗚𝗢𝗢𝗚𝗟𝗘 𝗣𝗔𝗥𝗧𝗡𝗘𝗥 𝗔𝗚𝗘𝗡𝗖𝗬 - Google Ads & SEO is a battleground. Ready to dominate the competition? Unlock your digital potential today!
Active in United Kingdom
Advertising, Display Ads +13
Ecommerce, B2B Services +1
Any
