What does a B2B marketing agency do?

A B2B marketing agency helps business-to-business companies generate qualified pipeline through positioning, brand, website, content, and demand generation. Potent works as a strategy-led partner — not a vendor — building the brand and the revenue engine that sits behind it.

What makes Potent different from other B2B marketing agencies in the UK?

Potent leads with strategy and commercial outcomes, not deliverables. Every brand, website and campaign is reverse-engineered from buyer behaviour and revenue targets. Our work spans brand strategy, identity, website builds, fractional CMO support and ongoing marketing retainers.

How much does a B2B marketing agency cost in the UK?

UK B2B marketing agency engagements typically range from £5k for one-off Brand MOTs to £8k–£20k per month for ongoing strategic retainers. Full brand and website builds usually sit between £25k and £80k depending on scope. Potent publishes pricing context up front so there are no surprises.

Do you work with companies outside the UK?

Yes. Potent is UK-based but works with B2B brands across the UK, EU and US — particularly in tech, recruitment, professional services and industrial sectors.

Marketing Agency vs In-House Marketing Team: Which Is Right for B2B?

The agency-vs-in-house decision is one of the most common questions we get from B2B founders. The honest answer is that it's almost never one or the other. The right model depends on your stage, your sales motion, and how much marketing your business actually needs to do.

Side-by-side

Criterion	Marketing agency	In-house team
Cost	£4k–£20k/month retainer for senior delivery	£60k–£120k salary for a single mid-senior marketer + tools/freelancers
Speed to capability	Onboarding in 2–4 weeks	Hiring takes 8–16 weeks; ramp another 3 months
Strategic depth	Senior strategists across multiple disciplines	Depth limited to the seniority you can hire
Specialist execution	Brand, website, content, paid, SEO under one roof	Need to hire or outsource each specialism
Brand and product knowledge	Builds over months; never as deep as in-house	Embedded daily; deeper context over time
Flexibility	Scale up/down with notice; commitment-light	Hires are sticky; restructure is slow and costly
Accountability	Output-based; defined SLAs and reporting	Performance-based; harder to evaluate without external benchmark
Best for revenue stage	£1m–£20m revenue, lean teams	£10m+ revenue with marketing as a core daily function

An agency is right for you if:

You're a B2B business under £10m revenue
You need senior strategic capability you can't afford to hire full-time
You need multiple specialisms (brand, web, content, demand)
You want to compress a 12-month build into 3–6 months
Your in-house team needs strategic leadership or specialist execution

An in-house team is right for you if:

Marketing is a daily, operational function in your business
You're at £10m+ revenue with the budget to hire above market median
You need deep, embedded brand and product knowledge
Your sales motion depends on close marketing-sales coordination
You have the leadership to recruit, ramp and manage marketing hires

Recommendation

For most B2B businesses between £1m and £20m revenue, the right answer is hybrid: a lean in-house lead (often a marketing manager or head of marketing) plus an agency that brings senior strategy and specialist execution. This combines the best of both — embedded business context plus depth and flexibility you can't replicate by hiring alone.

Frequently asked questions

Is it cheaper to hire in-house or use an agency?

Per-output, agencies are usually more expensive than a single hire — but a single hire can rarely deliver brand, website, content and demand at the same level. Compared like-for-like across capabilities, agencies are often cheaper than the equivalent team you'd need to hire to match.

Should we use an agency or fractional CMO?

Different problems. A fractional CMO is strategic leadership — they help you decide what to do. An agency is execution — they actually do it. Many B2B businesses use both at the same time.

When does it make sense to take agency work in-house?

When the function becomes a daily operational requirement and you have enough volume to keep a senior in-house specialist fully productive. Below that volume, an agency is usually the better economics.

Can we use an agency to ramp before hiring in-house?

Yes — this is one of the strongest use cases. Agencies build the systems and run the function while you find, hire and ramp permanent staff. Then they hand over.