Best Social Media Marketing Agencies in London (2026)

#1

Immersive Media Claimed

★4.8

London, United Kingdom · 121 services · 18 reviews

Immersive Media is an experienced UK digital agency specialising in web design, WordPress development, e-commerce, SEO, PPC, social media marketing, hosting and ongoing website support. Founded in 2001, we help businesses build stronger online foundations through carefully planned websites, search-focused content, technical optimisation and commercially focused digital marketing. With a combined 4.9/5 rating from 90+ client reviews, we bring long-standing experience, clear communication and practical expertise to projects across a wide range of sectors.

#2

London Marketing Company - Marketing | Web Design | SEO Agency London

★5.0

London, United Kingdom · Team 11-50 · 4 services · 101 reviews

London Marketing Company is a full-service digital marketing agency located in the heart of London, Mayfair. They specialize in data-driven marketing strategies, helping businesses improve profitability and achieve growth through various services including SEO and paid campaigns.

#3

Gifta - Influencer Marketing Agency

★5.0

London, United Kingdom · Team 51-200 · 2 services · 71 reviews

Influencer marketing specialists based in London, Gifta connects brands with creators across social platforms to drive authentic engagement. With extensive experience in advertising and social media strategy, the agency delivers measurable results for clients seeking to expand their reach.

#4

Visionary Marketing | Digital Marketing Agency London

★5.0

London, United Kingdom · Team 11-50 · 4 services · 66 reviews

Digital marketing solutions tailored for London-based businesses seeking growth through strategic advertising, media buying, and social media expertise. Visionary Marketing delivers data-driven campaigns across multiple channels with proven results.

#5

Optisearch - Google Ads & SEO Agency

★5.0

London, United Kingdom · Team 11-50 · 4 services · 63 reviews

London-based digital marketing firm specializing in Google Ads, SEO, and social media campaigns. Optisearch delivers advertising and media buying solutions with a 5.0 rating from 65 client reviews.

#6

Byter - Digital Marketing & Social Media

★5.0

London, United Kingdom · Team 11-50 · 4 services · 31 reviews

Byter delivers advertising and social media marketing services to brands across London. With expertise in digital strategy and media buying, the agency helps clients build their online presence through targeted campaigns.

#7

RED Marketing - Digital Marketing Agency London

★5.0

London, United Kingdom · 2 services · 26 reviews

Digital marketing solutions tailored for London businesses, RED Marketing specializes in social media strategy and campaign execution. With a 5.0 rating from 25 clients, the agency delivers measurable results across multiple digital channels.

#8

Our Own Brand

★5.0

London, United Kingdom · Team 11-50 · 3 services · 22 reviews

OOB is a social-first creative agency powering global brands with strategy, content and culture. We’re independent, plugged-in and built for what’s next, creating trends, turning heads and delivering scroll-stopping work that actually moves the needle. Proudly supporting TikTok, Ann Summers, Natural Cycles, O'Neill, ZAGG, Tern Bicycles, Caterpillar, Sonos and many more. Got a brief? Let's chat! 💌

#9

Jain marketing Vista ltd// Best Digital Marketing Agency in London UK// 3D, CGI,VFX Video

★5.0

London, United Kingdom · Team 1-10 · 3 services · 21 reviews

Jain Marketing Vista Ltd provides digital marketing, social media management, and advertising services to businesses across London. The agency specializes in 3D, CGI, and VFX video production to enhance client campaigns.

#10

PPC Marketing Agency for SaaS | London | Two Spouts

★5.0

London, United Kingdom · 4 services · 17 reviews

Two Spouts specializes in PPC and digital marketing solutions tailored specifically for SaaS companies operating in the London market. Their team handles advertising, media buying, and social media marketing with a proven track record reflected in their 5.0 rating across 17 client reviews.

#11

Careful Feet Digital Marketing Agency

★5.0

London, United Kingdom · Team 11-50 · 7 services · 12 reviews

We help small businesses and enterprise brands grow their digital footprint with award-winning digital marketing services. As a distributed team of freelancers with combined decades of experience across a range of industries and markets, we can offer our services at a fraction of the cost of full time hires or other agencies. (And we’re just, if not more, effective!)

#12

Got Legs Digital

★5.0

London, United Kingdom · Team 1-10 · 6 services · 11 reviews

Got Legs Digital is a growth marketing agency based in London. They specialize in assisting property, fintech, and startup companies in scaling their revenue through ethical marketing strategies.

#13

novi.digital

★5.0

London, United Kingdom · Team 11-50 · 6 services · 11 reviews

Founded in 2009 by CEO Aaron Crewe, Novi was built on the belief that digital marketing should prioritise long-term growth, supported by data-driven and psychology-focused strategies. Originally an SEO-focused agency, we’ve expanded our services to include PPC and paid social media to meet the evolving needs of our clients.

#14

Word Heroes

★5.0

London, United Kingdom · Team 11-50 · 11 services · 11 reviews

Word Heroes | Fully Managed Content Creation That Delivers ResultsAt Word Heroes, we help brands stand out online through fully managed, results-driven content creation. From engaging blog articles to scroll-stopping social media videos, we deliver premium content designed to drive traffic, build trust, and generate leads. Our editors, and creators work closely with each client to craft tailored content that reflects your brand voice and resonates with your audience. With flexible packages, hands-free management, and a proven track record, we make it easy for businesses to scale their content—without sacrificing quality. What We Deliver: ✅ Blog Articles – Well-researched, SEO-optimised content that builds authority and fuels organic growth.✅ Branded Videos – High-quality, brand-aligned videos that inform, entertain, and convert.✅ User-Generated Content (UGC) – Authentic, creator-driven videos that boost social proof and engagement.✅ Talking Head Videos – Personable, professional videos that put your message front and center.✅ Shorts & Voiceovers – Attention-grabbing short-form content for reels, TikTok, YouTube Shorts, and more.✅ Stories & Carousels – Visual storytelling designed for maximum engagement across Instagram, LinkedIn, and Facebook.✅ Social Media Posts – Thumb-stopping content designed to build community and amplify your reach. Why Clients Choose Word Heroes: 🌎 Global Reach, Local Expertise – UK, US, French, German, Spanish, Italian, Thai — local content creators who truly understand your voice and your market.📈 Results-Focused – Every piece of content is designed to drive engagement, authority, and conversions.💡 Strategic + Creative – We combine storytelling, SEO, and data-driven strategy for maximum impact.⏱️ Fully Managed – From planning to publishing, we handle it all—freeing you up to focus on growth.📊 Proven Performance – 10K+ blog articles, 25K+ videos, 300K+ social posts delivered worldwide.Read more

#15

Target | eCommerce Marketing Agency, London

★5.0

London, United Kingdom · Team 11-50 · 3 services · 10 reviews

Based in London, Target specializes in media buying, digital marketing, and social media strategies tailored for eCommerce businesses. With a 5.0 rating across 10 reviews, the agency delivers measurable results for online retailers.

#16

Blue Ring

★5.0

London, United Kingdom · Team 1-10 · 2 services · 7 reviews

We help brands acquire customers more efficiently with Facebook Ads using high-converting ad creative. We primarily work with US, UK, and AU based companies but have a global portfolio. An end-to-end solution for Facebook Ads management. This includes: Ad management Reporting Creative strategy Creative execution Landing page design Marketing consultation

#17

Y&R London

★4.9

London, United Kingdom · 3 services · 20 reviews

Based in London, Y&R London offers comprehensive advertising, media buying, and social media marketing services to help brands connect with their audiences. With a 4.9-star rating from 20 client reviews, the agency demonstrates consistent expertise across digital and traditional marketing channels.

#18

Signify Digital Ltd

★5.0

London, United Kingdom · Team 1-10 · 4 services · 5 reviews

Founded in 2017, Signify Digital started the way every good plan starts: with a chat over a drink. Combining our passions for digital marketing, innovation, and branding, we set about developing our service offering and began working with some fantastic clients. We are proud to have grown through recommendations and have developed strong relationships across a range of clients and sectors. As we grow, we never waver from our initial goal: to provide campaigns that deliver real results, with a personal approach to every project. Signify Digital is a highly personable online marketing agency with a focus on the healthcare sector. Based in Angel, London we provide a variety of digital marketing services for organisations both large and small including PPC, SEO and Paid Social Media. Our strength? Building meaningful relationships is our focus. We work closely with our clients to deliver a personal service with a highly individual approach. Unlike some other agencies, we don't automate everything and hold you to strict contract terms. We aim to build flexible and fluid relationships with clients and take the time to truly understand their business and company objectives.Read more

#19

Growthcurve

★4.9

London, United Kingdom · Team 11-50 · 5 services · 11 reviews

Growthcurve creates next-generation marketing campaigns that fuse technology and data with culture and creativity. We're an elite team of creatives, engineers, hackers and quants - changing the way tech companies grow. Advertising is dead, we're what comes next.

#20

ToJupiter

★5.0

London, United Kingdom · Team 1-10 · 5 services · 4 reviews

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

#21

Smarketa

★5.0

London, United Kingdom · Team 11-50 · 3 services · 4 reviews

Smarketa is a digital marketing agency that helps eCommerce and service-based businesses grow through expertly executed SEO, PPC, and data-driven performance strategy. We build and manage complete digital campaigns focused on increasing traffic, generating leads, and growing revenue.Our agency is built on a dedicated team of specialists with deep expertise in SEO and PPC. We work closely with brands across the UK, Europe, the US, and Australia – tailoring every strategy to your goals, not a template.Read more

#22

Allsopp Media

★5.0

London, United Kingdom · Team 1-10 · 6 services · 3 reviews

Allsopp media is a digital marketing agency. We provide digital marketing services to aspirational brands with a purpose. We understand how complex promoting a business can be. That’s why our professional digital marketing services are tailored to individual needs of our clients. Allsopp Media creates highly customised digital marketing campaigns. We are here for businesses looking for experts who can build an effective digital marketing plan. Our agency can help increase brand recognition and public awareness and get more traffic to a website. Our team can devise and implement it all.  Read more

#23

Glush

★5.0

London, United Kingdom · Team 1-10 · 10 services · 3 reviews

Bold websites and results-driven marketing for brands of all sizes, from London and Lille to the world. We're a dynamic team that blends creativity with data and technology, shaping digital experiences that inspire conversation, strengthen brands, and deliver measurable business growth.Website Design & DevelopmentWe design intuitive, responsive sites built for user experience, accessibility and SEO. Deliverables include UX research, prototypes, CMS implementation, ecommerce and optimisation for speed and conversions.SEO, Paid Media & Paid SocialFrom technical SEO audits and content planning to PPC, paid social and conversion tracking, we build acquisition systems that compound over time and report transparently on results.Social, Content & CreativeConcept, content production and campaign execution for platforms where your audience actually is. We combine cultural curiosity with clear briefs to create shareable work.Digital Strategy & AnalyticsWe build analytics frameworks, track meaningful KPIs and optimise journeys through testing, turning data into clear guidance for smarter marketing decisions.Read more

#24

Atomic Clock

★5.0

London, United Kingdom · Team 1-10 · 4 services · 2 reviews

We're Atomic Clock - a Meta and Google Ads agency for clients looking to definitively prove the value of their ads.Businesses struggle to precisely track Meta and Google Ad performance. This is particularly hard for businesses with long sales cycles.We use long-view attribution software to get a definitive view of performance and to track every interaction your customers take before purchasing - no matter the sales cycle.It's our secret weapon that allows us to make better ads and better decisions around how to improve your customer journey.Our 3 core services revolve around:- Precision Performance Ads: Laser-focused Meta and Google Ads that use accurate, precise data to improve their performance and commercial impact.- 360 Customer Attribution: Clear, accurate performance tracking that maps every stage of your customer journey.- Data-Driven Creative: Ads that are based on accurate data but crafted by expert-level creatives.So if you're looking for Meta and Google Ads that deliver the right results for your business, in a precise and cost effective way - then let's chat.Read more

#25

Starlight Digital

★5.0

London, United Kingdom · Team 1-10 · 3 services · 2 reviews

Starlight Digital — The Go-To PPC Agency for Lifestyle Brands Starlight Digital delivers PPC, Social Ads, and Amazon Ads for lifestyle brands that want to reach wider audiences and sell more of their products or services. We're a boutique agency with big-agency experience - young, ambitious, and building something long-term, with affordability and great customer service at the heart. We specialise in multi-channel campaigns that drive strategic growth, proudly powering performance for both FTSE 100 companies and ambitious SMEs across the UK and beyond. Our journey began post-pandemic in 2021, and within four years we became a Google Premier Partner — placing us in the top 1% of all agencies in the UK. Founded by Steven Mikellides — who honed his PPC and Paid Search skills at leading digital agencies, working with clients like Experian, National Geographic, Nestle and The Guardian — Starlight Digital is built to be agile, hard-working, and detail-oriented. For Steven, it’s the future of performance marketing. We're a long-term partner to our clients, and our clear, collaborative process ensures success. Here's how we work: Briefing Meeting In-Depth Survey of Existing Campaigns New Strategy Presentation Campaign Programming Test & Learn Reporting & Ongoing Optimisation We believe in smart, efficient campaigns that reach audiences properly — and we don’t believe in wasting budget. Whether it’s Google, social or Amazon, project-based or retained, Starlight is the perfect extension of your team. We offer a free Starlight Success Survey — or if you'd just like to chat, please get in touch.     Read more

#26

Suffolk Media

★5.0

London, United Kingdom · Team 1-10 · 5 services · 2 reviews

We help businesses in the financial, legal, automotive, and e-learning sector generate leads profitably at high volume.  ⭐️ Specialists in paid media, we’ve managed over £50,000,000 in advertising spend across Facebook, Google, and Native, with ROI being the number 1 priority.  💰Fixated on making money for our clients, not from them… ✅ We don’t believe in smoke and mirror tactics, or high client turnover. We’re looking for long-term partnerships and honest, open dialogue. Get in touch for a free consultation, let's see if we're a good fit! 🤝      Read more

#27

ROAST

★5.0

London, United Kingdom · Team 51-200 · 5 services · 2 reviews

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

#28

Noise Media Group

★4.9

London, United Kingdom · Team 11-50 · 5 services · 7 reviews

We are an award-winning and performance-driven, our team of social media, paid media, and creative specialists operates at the forefront of social-first marketing.Weve delivered growth strategies and creative campaigns for brands including Apple, Just Eat, Taskrabbit, Davines, Paradisus, PETA, and Trudis, spanning challenger startups through to global consumer brands.From paid strategists and media buyers to content creators and animators, we deliver integrated, full-funnel digital strategies engineered to accelerate brand growth.By combining creative direction with advanced performance marketing methodologies across paid social, organic social, and emerging digital channels, we help brands convert attention into measurable revenue. Our core focus is scaling direct-to-consumer businesses, driving customer acquisition, retention, and lifetime value through campaigns designed for tangible, trackable return on investment.Read more

#29

PPC Geeks

★5.0

London, United Kingdom · Team 11-50 · 4 services · 1 review

Based in London, PPC Geeks specializes in digital marketing, advertising, media buying, and social media marketing services. Their team delivers strategic campaigns tailored to drive measurable results for clients.

#30

9Xero Digital | Social Media, Website & Leads Generation in London

★5.0

London, United Kingdom · Team 1-10 · 2 services · 1 review

Located in London, 9Xero Digital specializes in social media marketing, website development, and lead generation strategies. The agency delivers digital marketing solutions tailored to help businesses build their online presence and drive customer acquisition.