What Questions Should You Ask Event Marketing Agencies in the UK?

What to take away

Ask five data protection questions in writing before you share any attendee list: controller, lawful basis, retention, sub-processors and breach notification.
Pin down asset ownership, cancellation triggers, payment stages and whether the fee includes VAT before you compare prices.
Use one written question set for every agency and one scoring sheet to compare the replies.
Request one case study from the last 18 months with a baseline figure and a post-event figure.
Name the people who run the event on the day, including subcontracted freelancers.

Example: the written question set that sorts a shortlist

Send this to every agency before the first call. Ask these five before you send over any attendee list.

Written question set

Who is the data controller for registration and badge-scan data, and are we joint controllers?
What is the lawful basis for processing attendee data, and how long do you retain it?
Which sub-processors touch the data, and where are they based?
Who handles a subject access request or an erasure request, and within what deadline?
Who tells us about a personal data breach, and within how many hours?

Data protection questions to ask

Which organisation is controller per dataset?
Which sub-processors handle data and where?
How long is attendee data kept?
What happens to data at contract end?
Can agency describe breach notification process?

The Information Commissioner's Office sets out controller duties, lawful basis and subject access handling in its UK GDPR guidance. An agency that will not answer these five in writing is a commercial risk rather than a slow correspondent.

Write the scope before you meet anyone, because how to brief an event marketing agency covers the detail that stops vague answers.

A five-step vetting sequence

Five-step vetting sequence

Send the brief and the question set on the same day.
Score written answers before you take any pitch call.
Meet the named event lead, not only the new business team.
Take two references, one from a comparable format, and ask what went wrong.
Check insurance, data protection registration and payment terms before signing.

A pitch deck rarely states who owns the video, the photography or the registration build.

Contract terms worth pinning down early

Ask for the draft contract with the proposal and read the intellectual property clause before you compare fees.

Cancellation carries more risk than the headline fee. Ask what happens if the venue cancels, who carries the deposit, and how much notice you must give.

Payment terms need the same attention: staged invoices, venue deposits and unused budget if the event is scaled back.

Most event services are standard-rated. GOV.UK lists the standard VAT rate of 20 per cent.

VAT turns fees into real cost

20%standard VAT rate
£30,000agency fee before VAT
£36,000total once VAT is added

Score every shortlist on one sheet

Use identical columns for every agency.

Score every shortlist

A strong answer

Who controls registration data?: Named controller, retention period and sub-processor list in writing
Who owns the creative assets?: You own final assets; the agency keeps portfolio rights
What does the fee include?: Itemised scope covering staff, kit and travel
How is success measured?: One primary metric agreed before kick-off
Who is on site?: Named leads with roles and backups

A warning sign

Who controls registration data?: "Our platform takes care of all that"
Who owns the creative assets?: Ownership transfers only after final payment
What does the fee include?: One blended figure with no breakdown
How is success measured?: Reach and impressions only
Who is on site?: "We will assign the team nearer the date"

Compare retainer versus project fees in the same columns, because the commercial model decides what the contract has to cover.

Fees: scope, stages and VAT

Illustrative planning bands for a UK business event programme, given as example figures rather than market rates.

Under £15,000one event, existing brand assets, agency supplies production and staffing.
£15,000 to £50,000a campaign around one event, with creative and registration build.
Above £50,000a multi-event programme with measurement and attribution reporting.

Whatever the band, ask for scope, payment schedule and the triggers for extra charges. Compare total event cost, not hourly rates.

Who delivers, and what evidence counts

Ask who runs the event on the day, then meet that person. Ask how much work is subcontracted and which freelancers are on site.

Evidence means one case study from the last 18 months with two numbers: the baseline before and the result after.

A reference call beats an awards entry. Ask the client what went wrong, because where event marketing agency reviews come from affects how much weight a public score deserves.

If the agency writes your event promotion, that copy falls under the CAP Code, and the advertising codes published by the ASA and CAP cover claims about speakers, sponsors and expected attendance.

Common questions

How many agencies should we shortlist?

Three to five is workable. A longer list spreads scoring thin.

What should we ask about fees?

Scope, payment schedule, triggers for extra charges and whether the quote includes VAT. Compare total event cost.

Do we need a data protection clause in the contract?

Yes. Name the controller, the retention period and every sub-processor, and set a breach notification window.

How should we test measurement?

Agree one primary metric before kick-off and the data source behind it. If the agency cannot name the source, question the metric.