B2B Marketing Agency Cost UK: Real 2026 Pricing Benchmarks

'How much does a B2B marketing agency cost in the UK?' is the most-asked question we hear. Here are the honest 2026 numbers, based on the UK B2B agency landscape and our own engagements.

One-off project pricing

Monthly retainer pricing

Fractional CMO rates

What drives pricing up

What drives pricing down

Agency vs in-house — the cost comparison

A mid-level marketing manager in the UK costs £55k–£75k base plus £15k loaded costs — call it £80k all in. A senior marketing leader is £100k–£140k plus £25k loaded costs. A £10k/month agency retainer (£120k/year) typically gives you access to a strategist, designer, copywriter, and developer at a fraction of the cost of hiring all four. The trade-off is ownership and dedicated time.

How to budget by company size

These numbers are honest UK market ranges — not a Potent rate card. Talk to us if you want a tailored quote for your situation.