Microsoft founder Bill Gates once famously asserted that when it comes to marketing, ‘content is king’.
The world might have moved on in the almost thirty years since Bill wrote that, but his maxim still rings true.
However, while content has managed to keep its crown, it increasingly needs a retinue of digital helpers to get it in front of the right audience.
This will typically involve some good old-fashioned SEO and paid advertising, but increasingly influencer-led social media campaigns and, most recently, real-time analysis powered by AI smarts.
As far as the last of these is concerned, the good news is that London’s digital media and PR scene has been an early adopter of big data and artificial intelligence, both to make their campaigns more tailored to target users and to inform real-time consumer behaviour analysis.
Our list features 10 of the best digital-focused London PR agencies, all at the vanguard of this movement of data-driven digital marketing.
Our Selection Criteria
When you’re shopping around for a PR company to handle your digital media promotions, we know a portfolio of previous successful campaigns sits near the top of your must-haves.
That’s why you’ll find the ten London-based digital marketing and PR agencies all have track records of delivering successful marketing campaigns and buckets-full of industry awards to boot.
To rank the agencies, we have gone for Google rating scores, from highest to lowest.
What are the Main Business PR & Marketing Services offered?
| Digital PR & Marketing Service | Description |
| AI & Automation | Leveraging AI for smarter marketing and efficiency. |
| Amazon & Retail Media | Running targeted product ads to boost visibility and sales on popular e-commerce platforms. |
| Analytics | Benchmarking and measuring media, social, and SEO for strategy optimisation. |
| Branding | Creating unique visual identities and strong brand positioning. |
| Connected TV | Running ads on digital smart TVs. |
| Crisis & PR Planning | Preparing for crisis communication to protect a brand’s online reputation. |
| CRO | Enhancing website experiences to boost conversions through user research and behavioural science. |
| Experiential Events | Creating events that promote user engagement and brand loyalty. |
| Google Ads Management | Optimising PPC campaigns on Google for targeted traffic. |
| Guest Blogging | Building authority and SEO through soliciting content from external expert bloggers. |
| Influencer & Community Engagement | Amplifying brand messaging through influencer and community collaboration. |
| Integrated Campaigns | Coordinating multi-channel marketing strategies across paid, earned, and proprietary media. |
| Link Building | Acquiring high-quality backlinks for websites to boost rankings on popular search engines. |
| Paid Media | Specialising in PPC, paid search, social, and shopping ads to increase conversions. |
| Paid Search | Targeting high-intent users via Google and Microsoft Ads for conversions. |
| Paid Social | Using social platforms to engage audiences and generate quality leads. |
| Programmatic Advertising | Optimising digital ads across channels with AI. |
| Reporting & Data | Providing actionable insights to measure business performance. |
| SEO Services | Offering SEO consultancy, technical, e-commerce, and international SEO to boost rankings. |
| Social Media | Managing paid and organic campaigns to enhance brand awareness and engagement. |
| User Interface (UX) | Enhancing a website’s or app’s usability and operability for an optimal customer journey. |
| Web Design | Designing tailored, visually appealing websites showcasing products and services. |
Also read: Top SEO & Marketing Agencies London
Disclaimer: The information shared in this post was correct at the time of publication and may be subject to change.
1. Burst Digital (5 ★ on Google | 70+ Reviews)
The agency based in Southwark sits atop our list for good reason.
They are expert at crafting compelling branding messaging backed up by clever use of targeted data analytics.
The agency’s expertise in digital marketing allows it to dream up campaigns that speak directly to the target audience and ensure high levels of user engagement and consistent traffic growth.
To achieve this, they put a lot of emphasis on advanced SEO techniques, but what truly sets them apart is their mastery of social media, where they are adept at transforming platforms such as Twitter, TikTok, and Instagram into powerful user engagement tools.
They know what plays well on these different social platforms and optimise their messaging using insights from real-time data, ensuring that every campaign brings maximum ROI for the client.
Notable Campaigns
- Vivienne Westwood: Burst carried out the branding and web design for the launch of the Vivienne Foundation, a non-profit organisation focused on sustainability issues.
- Nova Project Studio: The agency undertook a creative branding campaign for the studio that leaned heavily on the delta symbol (Δ) to bring attention to the company’s position as an agent for change in the art world.
- Newflame: Created a branding strategy for a new kind of dating app, one that specialises in double dates.
Sectors: Fashion, technology, startups, retail, e-commerce and luxury goods.
Award & Accolades
- Featured in the winner list of the Digital Communication Awards for a campaign with Takeda Pharma Vertrieb (2022).
Contact Information
- Address: 52 New Kent Road, London, SE1 6FW
- Phone: 020 3037 8935
- Email: hello@burstdgtl.com
- Website: burstdgtl.com
Social Media
2. ClickDo (4.9 ★ on Google | 90+ Reviews)
Founded by serial entrepreneur Fernando Raymond, ClickDo is a leading light in London’s digital media landscape.
The company specialises in SEO and website marketing, employing best-in-class white-hat SEO techniques to drive website traffic and get eyeballs on your digital content.
ClickDo is London’s go-to digital media agency if you’re looking to exploit the power of local SEO techniques; thanks to its knowledge of local markets, it has carved out a niche for itself in London’s SME world.
While the company’s strength lies principally in SEO, its marketing campaigns bring together various digital threads, including social media, email campaigns and paid adverts.
Notable Campaigns
- Angel Orthodontics: ClickDo developed and designed the clinic’s website from scratch and followed it up by undertaking a grassroots SEO campaign, leading to a substantial increase in the site’s organic traffic (unique page views nearly tripled in the first six months). The campaign made big use of targeted blogs that addressed common patient queries.
- Matt Gingell (Employment Lawyer): The agency used its SEO expertise to improve the lawyer’s search engine ranking and online visibility.
- End of Tenancy Cleaning: ClickDo worked with the company to cultivate its online presence, designing a new mobile-optimised website. The branding process involved logo design, photography, and bespoke t-shirt prints.
Sectors: Waste disposal, pest control, dentistry and fashion.
Awards & Accolades
- Winner of the Greater London Enterprise Awards (2021).
- Awarded ‘Most Innovative SEO Consultancy Award 2021’ by SME News Greater London Awards (2021).
Contact Information
- Address: 60 Tottenham Court Road Suite 78a, Fitzrovia, London. W1T 2EW
- Phone: 020 7175 1344
- Email: digital@clickdo.co.uk
- Website: https://www.clickdo.co.uk/
Social Media
- Facebook: 4.6K Followers
- Instagram: 597 Followers
- X: 406 Followers
- LinkedIn: 504 Followers
- YouTube: 482 Subscribers
3. Hallam (4.9 ★ on Google | 70+ Reviews)
Hallam knows that in a fast-paced world, speed kills.
Your competitors, that is.
Hallam can deliver expeditious results thanks to its novel approach to digital PR and marketing: performance branding, which is a unique mix of emotional branding and AI-backed precision performance marketing.
Indeed, the agency has embraced AI with gusto and now uses the new technology across all aspects of its marketing campaigns.
At the heart of its AI-powered marketing efforts sits its proprietary system, HallamIQ.
By automating repetitive tasks and augmenting human decision-making with predictive analytics, HallamIQ allows its clients to identify high-value audiences, launch targeted marketing campaigns quickly, and keep tabs on campaign spend.
Notable Campaigns
- Workbooks: Hallam was responsible for an award-winning campaign for the B2B CRM software firm – the ‘No BS CRM’ campaign addressed common customer frustrations with existing CRM solutions, positioning Workbooks as a straightforward and effective alternative to more complicated systems. The campaign was voted Marketing Week’s ‘Best Campaign of 2024’.
- New Healthcare Brand: By focusing on increasing visibility and lead generation for a new healthcare venture, the agency managed to enhance the new brand’s visibility in the market.
- Premium Garden Buildings Company: Hallam implemented digital strategies aimed at increasing marketing-attributed revenue, contributing to significant revenue growth.
Sectors: B2B, B2B SaaS, Clean energy, e-commerce, education, and healthcare.
Awards & Accolades
- Marketing Week’s ‘Best Campaign of 2024’ for the “No BS CRM” campaign for Workbooks (2024).
Contact Information
- Address: The Gridiron Building, 1 Pancras Square, London, N1C 4AG
- Phone: 020 3146 0604
- Email: info@hallam.co.uk
- Website: hallam.agency
Social Media
4. Bubblegum Search (5.0 ★ on Google | 18 Reviews)
Bubblegum Search is a UK-based AI Authority and Digital PR agency built for Shopify and eCommerce brands. They help brands strengthen visibility across organic search and AI-driven discovery by building the authority signals AI platforms and search engines trust.
Their AI Authority System combines PR-led campaigns, authority assets, influence-source outreach, and AI visibility tracking to earn credible coverage, brand mentions, and high-quality backlinks that compound over time. Working with clients across the UK and internationally, the agency focuses on helping eCommerce teams reduce over-reliance on paid acquisition and stay discoverable as search behaviour shifts towards AI-powered interfaces.
Services
- AI Authority System for Shopify & eCommerce
- Digital PR and authority campaigns
- AI visibility tracking and reporting
- Authority assets and content strategy
- Technical SEO foundations
Notable Campaigns
- IDS-INDATA: Combined SEO and Digital PR to build authority for a cybersecurity provider, increasing referring domains by 525% and raising Domain Rating from 14 to 37 while significantly expanding organic search visibility.
- Japanese Knotweed Specialists: Identified a seasonal spike in search demand and positioned the client as the expert source, securing 17 high-authority backlinks and increasing referral and branded traffic by 630% while boosting enquiries by 260%.
- Imaginfires: Delivered a full SEO and content strategy for a leading bioethanol fireplace retailer, increasing organic traffic by 97%, growing organic eCommerce revenue by 56%, and expanding keyword visibility by 120%.
Contact Information
- Address: SH02 St James House, 9–15 St James Road, Surbiton, KT6 4QH, United Kingdom
- Email: contact@bubblegumsearch.com
- Website: https://bubblegumsearch.com
Social Media
- LinkedIn – 1,583 followers
- X – 96 followers
- Instagram – 105 followers
- TikTok – 24 followers
- YouTube – 391 subscribers
5. Impression (4.9 ★ on Google | 8 Reviews)
Impression is a performance marketing agency that puts data analytics, behavioural psychology and bespoke technology at the heart of all its marketing campaigns and PR.
The secret sauce of their strategy is their novel approach to technology – they often develop proprietary tools for their clients when off-the-shelf technology just won’t do.
This gives them a competitive edge in understanding customer behaviour and campaign performance.
They have recently developed a proprietary AI-powered monitoring tool – Alexis – to oversee and analyse all their clients’ campaigns and associated data.
Notable Campaigns
- Topps Tiles: Impression led a successful campaign that allowed the home improvement company to make the most of its digital marketing promotions by boosting customer engagement and driving sales via its digital channels.
- Queensmith: The luxury jeweller achieved million-pound monthly revenues as a result of Impression Digital’s SEO and PR efforts.
- Norse Atlantic Airways: The Nordic air carrier saw a 40% uptick in its bookings on the back of the agency’s weather-triggered digital out-of-home campaign.
Sectors: E-commerce, B2B, SaaS, fintech, and sustainable issues.
Awards & Accolades
- Won 3 awards at The Northern Digital Awards, including Best Large Digital Agency of the Year (2025).
Contact Information
- Address: Runway East Borough Market, 20 St Thomas Street, London, SE1 9RS
- Phone: 020 7112 8148
- Email: hello@impressiondigital.com
- Website: impressiondigital.com
Social Media
- Facebook: 1K Followers
- Instagram: 1.2K Followers
- X: 2.5K Followers
- LinkedIn: 9K Followers
- YouTube: 243 Subscribers
6. Passion Digital (4.8 ★ on Google | 30+ Reviews)
This agency in Holborn Tower takes a 360 view of all the campaigns it works on.
That means not only do they focus on the client’s needs, but also keep tabs on what your competitors are doing and the market sentiment and trends among your target demographics.
Keeping tabs on so many moving parts can be tricky – that’s why they put data-led performance marketing at the heart of their campaigns.
They continuously refine their campaigns based on the real-time data they glean from their metrics, allowing them to stay ahead of the game.
Notable Campaigns
- EIT Campus: The agency drew on the power of Reddit’s targeted communities to reach specific target audiences. The campaign allowed the company to achieve a 492% increase in website traffic, reaching over 47,000 users, with 16.7 million impressions and 46,000 clicks coming from Reddit.
- Jigsaw: The British womenswear brand wanted to improve its organic marketing strategy to drive more traffic and online sales. Extensive keyword research, optimised on-site elements, and help in migrating to Shopify, all boosted the company’s SEO performance and allowed the company to achieve a 12% year-over-year increase in non-brand organic revenue and improved visibility for non-brand commercial keywords by 50%.
- Knight Frank Residential: Passion was brought in to boost the estate agent’s brand awareness and social media follower growth on platforms such as Meta and TikTok by targeting high-net-worth individuals looking for luxury properties. By using agent-led reels on Meta-based platforms, the agency achieved a 106.25% increase in online engagement, generating 56 indirect leads compared to eight over the previous period.
Sectors: B2B, ecommerce, professional services and travel.
Awards & Accolades
- Achieved Google Premier Partner status (2023).
- Awarded Social Media Campaign of the Year at the UK Digital Growth Awards in partnership with Knight Frank (2024).
Contact Information
- Address: 4th Floor, Holborn Tower, 137-144 New Oxford Street, London WC1V 6PL
- Phone: 020 3432 1360
- Website: passion.digital
7. CC Group (4.5 ★ on Google | 11 Reviews)
CC Group is a B2B technology PR and marketing specialist headquartered in King’s Cross.
They have over 30 years in B2B marketing and a truly global reach, so you can be sure your digital marketing campaign will reach the right people if you entrust your project to them.
Their focus is on delivering measurable results that help clients establish authority and influence in their given field.
It does this by using an integrated approach to all its PR and digital marketing projects, employing a multi-channel strategy to help clients make a splash among their target audiences.
CC Group is another agency that leans heavily on data analytics to stay ahead of the curve – its data-driven insights and AI tools allow it to optimise its clients’ PR campaigns.
Notable Campaigns
- Net Insight: CC Group led a campaign that sought to position Net Insight as a leader in 5G synchronisation. The strategy led to increased industry recognition for the comms company and a boost in the company’s reputation and online visibility.
- ClearBank: CC Group devised a PR campaign that positioned the fintech company as a major player in the fintech space via PR and marketing efforts, helping the organisation gain industry acclaim and credibility among its target audience.
- BT Global: The agency created a campaign that enhanced BT Global’s online presence and strengthened brand awareness and engagement via social media platforms.
Sectors: Mobile and telecoms, fintech, cybersecurity, next-gen connectivity, enterprise tech, and deep tech.
Awards & Accolades
- Shortlisted for ‘Best B2B Agency’ at the Fintech B2B Marketing Global Awards (2024).
- Named among the ’50 Best Agencies in the UK’ by PRovoke Media (2025).
Contact Information
- Address: 207-215 Kings Cross Road, London WC1X 9DN
- Phone: 020 3824 9200
- Email: hello@ccgrouppr.com
- Website: ccgrouppr.com
8. Hope & Glory (4.4 ★ on Google | 10+ Reviews)
The agency is known for pushing boundaries when it comes to dreaming up stunning digital marketing campaigns – they know how to make an impact both online and offline.
Their unique approach combines traditional PR with social media, experiential events, and innovative content strategies.
They work with players in different industries and specialise in sectors, and have recently worked with major brands like Pepsi and IKEA.
The agency typically works with large global brands and nonprofits, providing creative and impactful solutions to boost visibility and consumer connection.
Notable Campaigns
- Le Creuset – Summer Grilling Campaign: To promote the brand’s line of grilling products, Hope & Glory PR collaborated with chef Jonny Marsh to come up with highly engaging content that would play well on social media. This included educational posts and recipes shared via Instagram and a long-form video on YouTube. The campaign boosted the company’s Instagram engagements by almost 200%, won the company almost 9,000 extra views on YouTube, and directed over 300 visits to the campaign landing page.
- IKEA – Balenciaga Social Media Response: The agency orchestrated a viral social media campaign that sought to create a store online by contrasting the designer brand Balenciaga’s £695 towel skirt with IKEA’s £16 version. This clever compare-and-contrast social media campaign generated widespread attention and discussion on social channels.
- Instagram – The Instagram Edit at Selfridges: To showcase Shopping on Instagram, the agency launched a 10-day pop-up at Selfridges that featured brands that built their presence on Instagram. The initiative included a digital art installation in one of the store’s Christmas windows and an exclusive media preview.
Sectors: Fashion & Lifestyle, Finance & Money, Food & Drink, High Street & Online Retail, Motoring & Transport and Arts & Ents.
Awards & Accolades
- PR Week Awards 2024 – Highly Commended (Culture, Media, Sport and Travel for V&A) (2024).
- Finalist for multiple PR Week and PR Moment Awards, including Campaign Agency of the Year and Agency of the Year (2025).
Contact Information
- Address: 71 Collier St, London N1 9BE
- Phone: 020 3588 9700
- Email: hello@hopeandglorypr.com
- Website: hopeandglorypr.com
Social Media
9. M&C Saatchi Performance (4.2 ★ on Google | 10+ Reviews)
Founded in 2006, M&C Saatchi Performance is the digital marketing arm of one of the UK’s most recognisable PR outfits, Saatchi Group.
The agency’s approach to online marketing and promotion is built around the two Ms: maximising ROI and metrics.
Its data-driven approach to media planning and marketing means it puts data analytics at the heart of every campaign so that it can squeeze the most bang for its clients’ marketing bucks.
They employ real-time reporting and data science to optimise media investments and boost ROI. Their team uses cutting-edge technology to handle large-scale data, providing actionable insights to clients.
The agency has all the digital marketing bases covered, but excels in the arena of app marketing.
Notable Campaigns
- Headspace: Increasing Organic Conversion Rate through App Store Optimisation (A/B Testing): M&C Saatchi Performance collaborated with Headspace to improve its organic conversion rate through App Store Optimisation (ASO) and A/B testing. Their expertise in ASO involved optimising app listings to enhance visibility and conversion rates. By conducting A/B tests on various elements such as app icons, screenshots, and descriptions, they were able to identify the most effective ways to attract users and boost app downloads.
- TickPick: The agency collaborated with TickPick to implement a full-funnel programmatic advertising strategy and sought to raise brand awareness through podcasts. Their programmatic advertising services involve automated, data-driven ad placements across various digital channels, enabling precise targeting and efficient budget allocation.
- Mobile Premier League: M&C Saatchi Performance increased the company’s return on ad spend by using programmatic advertising and data-driven ad placements to reach targeted audiences effectively.
Sectors: App marketing, e-commerce and retail, streaming and entertainment, tech and fintech, and gaming:
Awards & Accolades
- Won Bronze for “Performance Marketing Agency of the Year” by Campaign Media (2022).
Contact Information
- Address: 36 Golden Square, London, W1F 9EE
- Phone: 0207 543 4600
- Email: emea@mcsaatchiperformance.com
- Website: mcsaatchiperformance.com
Social Media
10. Edelman UK (4.2 ★ on Google | 20+ Reviews)
This agency is one of the UK’s largest and brings deep industry expertise, data-driven insights, and creative storytelling to the table.
Their unique approach lies in their holistic integration of public relations and digital innovation to address both business and larger social issues thrown up by modern digital campaigns more effectively.
Edelman focuses on connecting brands with their audiences by using data-driven, tech-integrated strategies.
By leveraging the power of AI and digital analytics, they are able to craft compelling, user-specific campaigns across different media platforms.
Furthermore, their AI smarts allow them to measure the success of a campaign and tweak it in real time if it fails to hit home the first time.
Notable Campaigns
- Persil (Dirt Is Good): Edelman’s ‘Free the Kids’ campaign aimed to inspire parents to encourage outdoor play for their children. The campaign used influencers such as education expert Sir Ken Robinson and celebrity parents Giovanna Fletcher and Sophie Ellis-Bextor to spread the word. The campaign also used social media to host Persil’s first-ever Periscope session and partnered with Twitter to host its ‘Twitter Moments’ campaign, generating dialogue and trending hashtags throughout the session.
- Heineken (The Social Swap): This social experiment aimed to address gender bias in soccer by having former England international players Jill Scott MBE and Gary Neville swap their social media accounts for five days. Each shared their genuine views on soccer from the other’s account, highlighting disparities in audience reactions and sparking conversations about gender perceptions in sports.
- Heineken (Open Your World): The “Open Your World” campaign generated global engagement across 150 countries. The hashtag #OpenYourWorld became a trending topic on Twitter, with 22,000 social media mentions and 87% positive sentiment. Celebrities praised the campaign, contributing to 324,000 engagements and 138,000 social media shares.
Sectors: Health, technology, financial services, energy and sustainability, consumer brands, and public affairs.
Awards & Accolades
- Named among the top 10 ‘Best & Bravest Agencies on the Planet’ by Contagious Pioneers (2021).
Contact Information
- Address: Francis House, 11 Francis Street, London SW1P 1DE
- Phone: 020 3047 2000
- Website: edelman.co.uk
11. Harvard Public Relations (3.9 ★ on Google | 8 Reviews)
Harvard is a tech-focused communications agency that helps brands cut through the noise and connect with their target audiences.
If you’re looking not just to win market share but to disrupt markets, look no further than this agency in Westminster.
They have a track record of helping upstart tech brands make impactful moves, allowing new entrants to break into existing markets and change the narrative around digital brands.
To do this, they put at the client’s disposal a vast array of resources, combining marketing, advertising, and PR expertise to create an integrated strategy that drives real business impact.
Notable Campaigns
- NavVis (Scan More): Harvard raised B2B brand awareness within the laser scanning market by focusing on efficiency, reducing scanning time, and future-proofing operations. The agency leveraged a plethora of digital assets (landing pages, email nurture, paid media) and PR efforts to win attention and gain coverage in trade publications. The campaign also made good use of podcasts and managed to generate a 581% ROI, influencing over 6,000 contacts, and leading to 33 influence deals.
- Mimecast (Phishy Business): The campaign used humour and engaging content to highlight cybersecurity challenges. The company, known for its playful personality, created an animated ‘web spoof’ that was distributed globally. The content helped engage CISOs and raise awareness around email and data security.
- OPPO Find N2 Flip: The campaign successfully launched OPPO’s first flip phone in the UK by bringing together paid TV, social, and online influencers. Key strategies included leveraging media relations, influencer collaborations, and engaging content. The campaign resulted in over 40 pieces of tier-one media coverage, 500k+ social reach, and 30+ pieces of organic influencer content.
Sectors: Enterprise technology, telecoms and connectivity, cybersecurity, fintech, and cloud and data services.
Awards & Accolades
- Won PRovoke Media’s EMEA Tech agency of the year three times in the last five years.
Contact Details
- Address: 1 Francis St, London, SW1P 1DH
- Phone: 020 7861 2800
- Email: hello@harvard.co.uk
- Website: harvard.co.uk
Social Media
Next Step: Think Big, Go Small
London’s digital PR and marketing landscape never stands still, and the rapid development of technology and novel communication channels often drives change.
Most recently, the biggest disruptor to the prevailing way of doing things has been the advent of the nano and even the micro-influencer.
These small-dose influencers can lend a brand or business authenticity, relatability, and credibility among members of their target audiences in a way larger influencers can’t.
This trend is particularly notable in the beauty and personal care sector, but we can expect it to sweep swathes of other sectors going forward.
So, when looking for a top-tier digital PR service in London, be sure they understand how to convert trends into your brand wins.
If you want us to add a suggestion here based on your experience, please get in touch with us!
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