B2B Content Marketing Agency UK
Some of what a content agency publishes for you is legally an advertisement. Some of it is outside the regulator's remit entirely.
The difference is not the format, the channel or the word count. It is whether the piece is directly connected with supplying what you sell — and almost no agency scope of work says which side of that line each deliverable falls on.
For the agencies themselves, the shortlist is next door: eleven verified UK firms in the B2B marketing agency UK guide.
One retainer, three different products
"Content marketing" is sold as a single service and delivered as at least three, which is why two proposals at the same monthly fee can be for almost unrelated work.
An agency that prices these identically has not thought about them separately.
If your problem is the paid distribution rather than the asset, that is a B2B advertising agency brief; if it is what the company stands for before any of it is written, it is a B2B brand agency one.
The same article can be an ad, or not be one
The CAP Code's own scope section carries two lists: what is covered, and what is not.
Clause I.h brings in marketing communications on a company's own website, or in other non-paid-for space online under its control, that are directly connected with the supply or transfer of goods, services, opportunities and gifts.
Clause II.q takes back out website content not covered by I.d or I.h — "including (but not limited to) editorial content, news or public relations material, corporate reports and natural listings on a search engine or a price comparison site".
So the test is the connection to the sale, not the genre. Move a paragraph and the answer changes.
It has to be obvious what it is
Section 2 of the CAP Code is three short rules, and they are the ones B2B content programmes break most often — usually without anyone deciding to.
Rule 2.3's second limb is the sharp one: a marketing communication must make clear its commercial intent if that is not apparent from the context.
A ghost-written founder post, an unbadged "industry research report" written by the vendor whose product it favours, a partner-authored review — the context does not make the intent apparent in any of them.
The evidence has to exist before the piece does
Rule 3.7 is the operational one for a content agency, and the word that does the work is before.
The requirement is not that a claim is true, or that you could find support for it if challenged. It is that documentary evidence is held at the point of publication.
Which turns "who holds the documentary evidence for every claim in this asset, and where does it live when the writer has moved on" into a contractual question — one that almost no content scope of work answers.
Misleading by omission is still misleading
Rules 3.1 and 3.3 are the pair that catch B2B content most often, and 3.3 is the one people are surprised by: a communication must not omit material information, or information required to be included by law.
A benchmark report that publishes the flattering cut of its own dataset has not said anything false. That is precisely the situation the rule describes.
There is no rate card, and this page will not invent one
Every UK B2B content-marketing price benchmark we could trace was published by a company selling content marketing, with no retrievable methodology behind it.
The AA/WARC Expenditure Report is the closest thing to an authority on UK marketing spend and it is paywalled and does not break out B2B content as a category.
So the honest answer is a method rather than a number: published public-sector contracts carry real values for content, copywriting and campaign work, because public bodies are required to publish them. That is a comparison you can run yourself in an afternoon, and it is real.
The brief
Five questions. The first three decide what you are actually buying; the last two are the ones that separate agencies.
Take the finished brief to several of them unchanged.
How to buy B2B content marketing in the UK
No rate card, so here is what to ask instead.
Make the agency label each deliverable
Ask, for every item in the proposed scope, whether the agency considers it a marketing communication under the CAP Code and why. You are not asking for a legal opinion; you are testing whether anyone has thought about it.
An agency that has will answer in a sentence per item. One that has not will say the Code applies to consumer advertising, which is a misreading — the non-broadcast Code covers business-to-business marketing communications too, and the ASA rules on them.
Ask where the substantiation lives
Rule 3.7 requires documentary evidence to be held before a communication is distributed. The practical question is where: a shared folder that outlives the writer, or a link in a draft doc that rots the month the contract ends.
Ask to see the evidence file for a piece the agency has already published for someone else. The answer is usually immediate and it is usually informative.
Ask who is named as the author, and who wrote it
Ghost-writing is ordinary and it is not in itself a breach. Rule 2.3 bites when the communication does not make its commercial intent clear and the context does not make it apparent — which is a question about how a piece is presented, not about who typed it.
Settle the byline policy before the first draft rather than after the first complaint.
Price it against published public contracts
Public bodies must publish what they award. Contracts Finder and Find a Tender carry real content, copywriting and campaign awards with real values and real scopes, and they are free to search.
Pull half a dozen with a scope close to yours and you have a defensible range built from primary sources, which is more than any agency benchmark will give you.
What we are not telling you
No day rate, no cost-per-article, no "content costs 62% less than paid search". Every version of those we could trace leads back to a vendor survey with no retrievable methodology — the same failure mode that took four claims off our ABM agency page.
That absence is deliberate, and it is the standard applied across this cluster.
B2B content marketing — FAQ
Sources
The CAP Code itself, quoted from the ASA's own published text. Where no primary source exists — a UK B2B content rate card, a content-versus-paid cost comparison — this page says so rather than filling the gap.
- Committee of Advertising Practice, CAP Code — Scope of the Code — clause I.h (marketing communications on a marketer's own website and in other non-paid-for space online under its control, directly connected with the supply or transfer of goods, services, opportunities and gifts); clause II.j (press releases and other public relations material); clause II.k (editorial content); clause II.q (website content not covered by I.d and I.h).
- Committee of Advertising Practice, CAP Code section 2 — Recognition of marketing communications — rules 2.1, 2.3 and 2.4.
- Committee of Advertising Practice, CAP Code section 3 — Misleading advertising — rules 3.1 (materially mislead), 3.3 (omit material information) and 3.7 (documentary evidence held before distribution).
- Contracts Finder and Find a Tender — the UK's published-award services, cited here as the method for building a price comparison from primary sources rather than as the source of any figure quoted on this page.
Not used on this page, and deliberately: any UK B2B content-marketing day rate, cost-per-asset or retainer benchmark, and any claim comparing the cost or return of content against paid media. We could not find a primary source for any of them that was not published by a party selling content services.
Got the brief, need the agency? The shortlist is next door.