Digital PR agencies in London: what the work is, the UK rules on paid coverage, and how to judge a campaign

A digital PR agency in London sells earned coverage: stories, data and expert comment that journalists choose to publish, usually with a link back to your site. It is different from buying placements. In the UK, if you pay for editorial coverage it has to be labelled as advertising under both the CAP Code and the Digital Markets, Competition and Consumers Act 2024, and Google's spam policies say a paid link must carry a nofollow or sponsored attribute. So the first question to ask any London digital PR firm is simple: is this coverage earned or paid, and how is each one labelled?

What a digital PR campaign actually contains

Most London digital PR agencies sell some mix of these five pieces of work.

Work	What it is	What you should receive
Data led stories	A survey, a data study or an analysis of public data that gives a journalist a new fact	The method, the raw data and the sample size, so a journalist can check it
Reactive comment	Quick expert comment on news in your sector, often called newsjacking	A named spokesperson, approved lines and a fast sign off route
Expert profiles	Getting your people quoted as sources in their field	A list of topics each expert can speak on, with credentials
Creative campaigns	Tools, maps, rankings or visual stories built to be covered	The asset, the press release and the list of target titles
Outreach	Pitching all of the above to journalists	A report of every piece of coverage, with the link and whether it is followed

A good agency will tell you which of these suit your business before it pitches a campaign. A B2B software firm may get more from expert comment in trade titles than from a viral consumer survey.

London's advantage: public data for data led stories

London has unusually rich public data to build stories from. The London Datastore, created by the Greater London Authority, says it offers over a thousand datasets, free to use, and its Data for London Library, launched in 2025, links to thousands more from the boroughs and other sources. London is also 32 boroughs plus the City of London, according to London Councils, so a borough by borough story is a natural format for London media and for local titles across the capital.

Ask an agency where its data will come from. Public data is checkable and cheap. A survey can be strong too, but ask for the sample size and who ran it, because a journalist will.

The UK rules a digital PR agency has to follow

Paid coverage must be labelled

CAP Code rule 2.4 says marketers and publishers must make clear that advertorials are marketing communications, for example by heading them "advertisement feature". The ASA notes that this rule reflects a prohibited practice in Schedule 20 of the DMCC Act. Paragraph 12 of that Schedule bans using editorial content in the media to promote a product where a trader has paid for the promotion without making that clear. It has been in force since 6 April 2025 under S.I. 2025/272.

Paid links must be tagged

Google's spam policies, last updated on 28 August 2026, list buying or selling links for ranking purposes as link spam. That includes exchanging money for links, exchanging goods or services for links, and "sending someone a product in exchange for them writing about it and including a link". Google also says buying and selling links is a normal part of the web for advertising and sponsorship, as long as the links are qualified with rel="nofollow" or rel="sponsored". So a sponsored placement is fine if it is labelled and tagged. A paid link dressed up as earned coverage is a risk to your domain.

What journalists publish is governed too

The Editors' Code of Practice, enforced by IPSO, has a current version in effect since 1 January 2025. Clause 1 says the press must take care not to publish inaccurate, misleading or distorted information, and must distinguish clearly between comment, conjecture and fact. In practice, a story built on weak data puts the journalist at risk, and journalists who have been burned stop answering that agency's emails. Accurate, checkable data protects the agency's relationships and your name.

Claims need evidence

If your press release makes a claim about your product, CAP Code rule 3.7 requires you to hold documentary evidence for objective claims before you publish them in marketing. Agree the evidence before the release goes out.

How London digital PR agencies charge

Agencies in this market usually price in one of three ways: a monthly retainer, a fee per campaign, or a fee per piece of coverage or per link. Each one changes how the agency behaves.

• Retainer. Steady work, reactive comment and a long view. Ask for a monthly plan and a coverage report.
• Per campaign. Good for a test. Ask what happens if the campaign gets little coverage.
• Per link. Easy to measure, but it pushes the agency towards volume and towards sites that will place links easily. Ask for the list of sites in advance and check that paid placements are tagged.

Whatever the model, ask for every piece of coverage to be reported with the publication, the date, the URL and whether the link is followed or tagged as sponsored.

London, Leeds, Birmingham or Bristol

Many national newsrooms and trade titles are based in London, and London agencies often have long relationships with them. Strong digital PR firms also work from Leeds, Manchester, Birmingham and Bristol, and the work travels well because outreach is done by email and phone. Choose on the campaigns an agency can show you and the coverage it earned, not on its address. If your story is regional, an agency in that region may know the local titles better.

Digital PR overlaps with SEO, because links and mentions from trusted sites are part of how pages earn trust. Our guide to public relations and SEO explains how to run the two together, and SEO in London covers buying search work in the capital.

Digital PR agencies in London: questions buyers ask

Is digital PR the same as link building?

No. Link building can mean any way of getting links, including buying them. Digital PR earns coverage because a journalist chose to run the story, and links come as part of that coverage. Ask an agency which one it is selling.

Can we pay a site to publish our article?

Yes, as advertising. The piece must be labelled as an advertisement feature or similar under CAP Code rule 2.4, and the link should carry rel="sponsored" or rel="nofollow" under Google's policy.

Can we send products to journalists or creators?

Yes, but Google's policy lists sending a product in exchange for writing about it with a link as link spam, and the CAP Code requires paid or gifted promotion to be clearly identified as marketing. Send products freely, without requiring a link or a positive review.

What should we measure?

Coverage in titles your buyers read, links from relevant sites, branded search in Search Console, referral traffic from the coverage and enquiries that mention it. A long list of links from sites nobody in your market reads is not a success.

When can we judge whether a campaign has worked?

Coverage is visible as soon as it is published, so judge that in the agency's report. Effects on search show in Search Console once Google has crawled the linking pages; Google's own documentation says: "Crawling can take anywhere from a few days to a few weeks." Whether enquiries follow depends on competition, your offer and your budget.

Where an assistant gets its answer about your firm

When a buyer asks ChatGPT or Gemini "which firms lead in this field in the UK", the answer is built from the pages the model can read, and press and trade coverage is a large part of that. Digital PR is one of the few kinds of marketing that places your name on the sites those answers draw from. AI Knows Us asks those buyer questions on ChatGPT, Gemini, Perplexity, Claude and Google AI Overviews and shows which publications each answer cited, which tells a PR team which titles matter for its category.