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Digital Marketing Agencies

Digital Marketing Agencies near you

A digital marketing agency takes on some or all of the channels that bring customers to a business online: organic search, paid media, email, social accounts and the pages those clicks land on. The mix varies far more than the job title suggests. Some agencies are media buyers who place spend and report on it. Others work as an outsourced marketing department, writing the plan, making the assets and handling the numbers.

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Two UK regulators shape the work whether or not they come up at the pitch. The Advertising Standards Authority administers the CAP Code, and since 2011 that Code has applied to claims on a company's own website and other non-paid-for space online under its control, including its social channels. The Information Commissioner's Office enforces UK GDPR and the Privacy and Electronic Communications Regulations, which govern marketing email, texts and cookies. The advertiser carries responsibility for both, not only the agency that pressed publish.

That makes the contract the document worth reading twice. It should say who holds the accounts and the data, who signs off claims before they go live, what the agency may send and to whom, and what is handed back when the relationship ends.

What UK digital marketing agencies actually sell

  • Full-service retainers covering strategy, content, paid media and reporting under one monthly fee.
  • Channel specialists who only do search, only paid social, or only email and automation.
  • Performance agencies paid partly on results, which changes what they push you towards.
  • Production-led shops that make assets - pages, ads, video, email templates - to someone else's plan.
  • Fractional or embedded marketers who sit inside your team for a fixed number of days a month.
  • Platform implementation partners who configure analytics, tag management and CRM rather than run campaigns.

The CAP Code covers your own website, not just your ads

People assume advertising rules apply to bought media. In the UK they reach further. CAP states that since 2011 the Code has applied to advertising on a company's own website and in other non-paid-for space online under its control, which includes a brand's social media profiles and channels. Product pages, landing pages and promotional posts are all in scope.

Section 3 of the Code sets the standard for claims. Rule 3.1 says marketing communications must not materially mislead or be likely to do so, and rule 3.7 requires marketers to hold documentary evidence before publication to prove claims consumers are likely to regard as objective. In practice the evidence has to exist on the day the page goes live, not when a complaint arrives.

The ASA can act on a single complaint. Its sanctions for online advertisers include adding the advertiser's name and the problem with its advertising to a dedicated section of the ASA website, asking search engines to remove paid-search ads that link to non-compliant material, and placing the ASA's own paid-search ads highlighting the advertiser's name and non-compliance. Persistent offenders can be referred to Trading Standards.

Marketing email, PECR and the soft opt-in

PECR sits alongside UK GDPR and applies even where no personal data is being processed. For marketing email and text messages to individuals, the ICO's position is that you must not send them unless the person has specifically consented to electronic mail from you.

The one narrow exception is the soft opt-in, and it has conditions. The ICO describes it as applying where the person bought, or negotiated to buy, a similar product or service from you in the past, and you gave them a simple way to opt out both when you first collected their details and in every message since. It does not stretch to prospective customers or new contacts from bought-in lists.

Every message must also identify the sender and carry a valid contact address for opting out. Rules for corporate subscribers are looser - companies, partnerships and public bodies can be emailed without prior consent - but the ICO advises keeping a do-not-email list and screening new lists against it, and sole traders and some partnerships count as individuals. The ICO can issue a monetary penalty of up to 500,000 pounds under PECR, against the organisation or its directors.

Data roles: controller, processor and the ICO fee

  • If the agency processes personal data on your instructions it is a processor and you remain the controller, and Article 28 of UK GDPR requires a written contract between you.
  • The ICO says that contract must cover sub-processors and your chance to object to them, help responding to individuals exercising their rights, and audit rights.
  • Agencies that decide for themselves what to do with data - building their own prospect lists, for example - are acting as controllers in their own right for that activity.
  • Organisations including sole traders that use personal information need to pay the ICO's data protection fee unless they are exempt, and that applies to the agency as much as to you.
  • Ask where campaign data sits: an agency's own CRM, analytics or email platform holds your customer records on infrastructure you do not control.
  • The ICO's published enforcement actions include enforcement notices, reprimands, monetary penalties and prosecutions, so look at how an agency documents consent rather than taking assurance on trust.

How a digital marketing retainer is set up and run

  • Discovery: access to your analytics, ad accounts and CRM, plus a read of what has been tried before.
  • A written scope naming the channels in play, the deliverables each month and the measures that will be judged.
  • Access set up properly, with the agency invited into your accounts rather than creating new ones it owns.
  • An approvals route for claims and creative, so the substantiation question is answered before publication.
  • Regular reporting against agreed measures, with the raw platform data available to you, not only a slide.
  • A quarterly review that can change the plan, and a defined notice period with a handover list attached.

How UK agencies charge, and what sits outside the fee

  • Monthly retainers buy a set amount of time or a set list of deliverables - check which, because they behave differently when priorities shift.
  • Project fees suit defined pieces of work such as a campaign launch or a migration, and should name a revision limit.
  • Media spend is normally separate from the fee and paid by you; a percentage-of-spend management fee rewards bigger budgets, which is worth naming out loud.
  • Third-party costs such as stock imagery, software seats, hosting and production are usually recharged, so ask for them in the estimate.
  • Performance or commission elements need a written definition of the result being paid for and who arbitrates the measurement.
  • Setup or onboarding fees cover account audits, tracking work and asset migration that the retainer then assumes is done.

Where agency relationships break down

  • Accounts and domains created in the agency's name, which become a negotiation the day you leave.
  • Reporting built on the agency's own dashboard with no way to reconcile it against the platform's figures.
  • Claims published without the evidence behind them, leaving the advertiser to answer the ASA.
  • Lists built or bought without a consent record, which is a PECR problem for you, not for the agency.
  • Scope drift, where a retainer quietly becomes production work and the strategy stops being revisited.
  • One senior person at the pitch and a junior team on the account, with no named day-to-day contact in the contract.

Digital Marketing Agencies: frequently asked questions

Do UK marketing agencies need a licence or registration?

No. Marketing is not a regulated profession in the UK, and there is no register to check. What does exist is enforceable: the ASA administers the CAP Code across non-broadcast advertising, the ICO enforces UK GDPR and PECR, and the CMA enforces consumer protection law. Most agencies that use personal information also have to pay the ICO's data protection fee, and that is one of the few public records you can look at.

If the agency writes a misleading claim, who does the ASA go after?

The ASA's rulings name advertisers. The CAP Code places the obligation on the marketer to hold documentary evidence before publication under rule 3.7, and the advertiser's own website and social channels have been within the Code's remit since 2011. An agency that wrote the copy may well be named too, but the brand is the one that ends up on a published ruling, so sign-off should sit with someone who can produce the evidence.

Can an agency email a list it bought on our behalf?

Not for marketing to individuals. The ICO is explicit that the soft opt-in does not extend to prospective customers or new contacts from bought-in lists, and consent has to be specific consent to receive electronic mail from you. Contacting corporate subscribers is treated differently, but sole traders and some partnerships count as individuals, and the ICO recommends screening any new list against a do-not-email record.

What should the contract say about our accounts and data?

That you own them. Advertising accounts, analytics properties, the domain, the CRM and the mailing list should be registered to your organisation with the agency given access as a user. Alongside that, if the agency processes personal data on your instructions, UK GDPR requires a written contract covering sub-processors, assistance with individuals' rights requests and audit. Add an exit clause listing what is transferred and in what format.

How do we judge whether a retainer is working?

Agree the measures before the work starts and take them from the platforms rather than a bespoke dashboard. Pick a small number that connect to revenue or qualified enquiries, not impressions. Ask for the reasoning behind changes, not just the results, so you can tell a considered adjustment from churn. If an agency resists giving you direct access to the underlying accounts, that answers a different and more important question.

Sources

  1. ASA/CAP - Remit: own websites
  2. CAP Code section 3: misleading advertising
  3. ASA - Sanctions
  4. ICO - Electronic mail marketing (Guide to PECR)
  5. ICO - What are PECR?
  6. ICO - When is a contract needed between a controller and a processor?
  7. ICO - Data protection fee
  8. ICO - Enforcement action we have taken

Written by the LokalMatch editorial team. Last reviewed 22 September 2026. How we write and check our guides

What digital marketing agencies can help with

Common reasons people and businesses hire digital marketing agencies:

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What affects the fees digital marketing agencies charge

Fees depend on the work involved and how the professional bills. We only publish fee ranges when they’re backed by real LokalMatch data or reliable sources. Until then, here’s what usually changes the fee:

  • Scope and complexity of the work
  • How the firm bills: hourly, per project or on a monthly retainer
  • Experience of the team
  • Timeline and how urgent the work is
  • Ongoing support after the work is delivered

How to compare digital marketing agencies before you hire

  • Ask for examples of similar work for clients like you.
  • Read reviews and ask for references you can contact.
  • Make sure the scope, deliverables and timeline are written down before work starts.
  • Ask who will do the work: an in-house team, freelancers or subcontractors.
  • Compare two or three proposals before you decide.

Questions to ask digital marketing agencies before you hire

  • Have you done work like this before, and can I see examples?
  • Who will work on this, and who is my main contact?
  • How do you charge: hourly, per project or monthly?
  • What is included, and what costs extra?
  • How long is the contract, and how can either side end it?
  • How will you report on progress?
  • Who owns the work, files and accounts you set up for me?

Licences and registration

This kind of work is often limited to licensed or registered professionals, and the rules depend on where you are. Ask which body they’re registered with, and check their status on that body’s public register before you hire.

Guides about digital marketing

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