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Every B2B founder running paid search eventually hits the same crossroads: do we hire an agency, bring it in-house, or work with a freelancer?
It sounds like a simple question, but it's not. The wrong call costs you months of wasted spend, misaligned incentives, or a hire you don't actually need yet. The right call can be the difference between PPC that quietly drains budget and PPC that reliably generates pipeline.
There's no universal answer here. But there is a framework. And it starts with being honest about where you actually are as a business.
The three variables that determine the right model:
- Monthly ad spend: how much you're putting into the platforms
- Internal capability: whether you have the people and processes to manage PPC effectively
- Growth stage: whether you're validating, scaling, or optimising
Run through those three honestly, and the decision usually becomes clear.
The Freelancer Option: Right for Early-Stage, Wrong for Scale
If you're spending under £5,000/month on ads and you're still figuring out your ICP, messaging, and conversion funnel, a freelancer is often the most sensible starting point.
A good PPC freelancer gives you hands-on expertise without the overhead of an agency retainer. They're typically cheaper, more flexible, and easier to brief directly. For early-stage testing, that's exactly what you need.
Where freelancers fall short
The problem is capacity. Most freelancers are juggling multiple clients, which means your account rarely gets the strategic attention it deserves as you scale. You're also dependent on one person's skill set. If your campaigns need landing page feedback, attribution modelling, or cross-channel thinking, you'll hit the ceiling quickly.
The honest rule of thumb: freelancers work well up to around £5–8k/month in spend, or when you need tactical execution rather than strategic leadership. Beyond that, you're either underserved or overpaying for the wrong model.
The In-House Option: When It Makes Sense (and When It Doesn't)
Bringing PPC in-house is appealing for obvious reasons. Full control, deep product knowledge, no agency markup, and someone who lives and breathes your business. For the right company at the right stage, it's genuinely the best option.
When in-house works
In-house PPC makes sense when:
- You're spending £15,000+/month and the economics of a full-time hire stack up
- Your sales cycle is complex and requires tight alignment between PPC and sales or CRM data
- You have a mature marketing function with strong creative, content, and ops support around the PPC role
- You're in a niche where deep domain knowledge is a genuine competitive advantage in ad copy and targeting
The hidden costs most founders underestimate
The salary is the obvious line item. But the real cost of in-house is everything around it: management time, recruitment (often 3–4 months), ramp-up period (another 2–3 months before you see real output), tools, training, and the single-point-of-failure risk if they leave.
A mid-level PPC manager in the UK costs £35,000–£50,000 in salary alone. Add employer NI, pension, and tools, and you're looking at £45,000–£65,000 all-in before you've seen a single optimisation.
The uncomfortable truth: most scale-ups hire in-house too early, before the infrastructure exists to make a PPC hire effective. The result is a talented person spinning their wheels because the landing pages aren't converting, the CRM isn't set up properly, or the creative pipeline is non-existent.
The Agency Option: Breadth, Speed, and the Accountability Question
A specialist B2B PPC agency sits in the middle ground: more strategic depth than a freelancer, faster to deploy than an in-house hire, and (when chosen well) genuinely accountable to results.
The strongest argument for an agency isn't the team size or the tooling. It's pattern recognition. A good B2B PPC agency has run campaigns across dozens of accounts in your space. They've seen what works in your specific industry for lead gen, what bidding strategies hold up in competitive B2B auctions, and where most companies waste budget. That institutional knowledge is hard to replicate with a single hire.
What to look for (and what to avoid)
Not all agencies are equal. The B2B PPC space has its share of generalist shops that treat your account like a template. When evaluating options, focus on:
- Sector fit: have they actually run campaigns for B2B SaaS or lead-gen businesses, or are they primarily eCommerce?
- Transparency: do they show you exactly where the budget goes, including their margin?
- Contract terms: rolling monthly contracts signal confidence; long lock-ins are a red flag
- Who actually works on your account: senior specialists or juniors with a senior face on the pitch?
The agency model works best when
- You're spending £5,000–£50,000/month and need strategic execution without the overhead of a full team
- You're scaling fast and need campaigns live in weeks, not months
- You want external challenge and fresh perspective alongside execution
- You don't yet have the internal infrastructure to support a full-time PPC hire effectively
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The "Hybrid" Model
Some of the best-performing B2B marketing setups we've seen combine an in-house performance marketing manager (who owns strategy and stakeholder comms) with a specialist agency handling execution. You get the best of both: internal ownership and external expertise.
The important question to ask: if your current PPC setup disappeared tomorrow, how long would it take to rebuild and who would rebuild it? If the answer is "I don't actually know," that's a signal your current model has a dependency problem worth fixing.
The 2026 Context: Why This Decision Is Harder Than It Used to Be
It's worth acknowledging that the PPC landscape in 2026 is meaningfully different from five years ago. Google's Performance Max campaigns, AI-driven bidding, and the increasing complexity of B2B attribution have raised the skill floor considerably. Running B2B PPC well now requires a deeper understanding of audience signals, first-party data strategy, and conversion tracking than it did when manual CPC was the default.
This has two implications for the agency vs in-house decision:
- The talent bar for in-house hires has risen. A junior PPC executive who could manage campaigns adequately in 2020 will struggle with the strategic demands of modern B2B paid search. If you're hiring in-house, you need someone genuinely senior, and that costs accordingly.
- Not all agencies have kept up. Some are still running playbooks built for a simpler era. When evaluating agencies, ask specifically how they approach Performance Max for B2B, how they handle lead quality vs volume trade-offs, and what their attribution model looks like. The answers will tell you quickly whether they're current.
The fundamentals of the decision haven't changed. But the competence required to execute well at every level has increased, which makes getting the model right more important than ever.
The Bottom Line
There's no universally correct answer to the agency vs in-house vs freelancer question. But there is a wrong answer: defaulting to whatever feels most comfortable without stress-testing it against your actual stage, spend, and internal capability.
If you're under £5k/month, start with a good freelancer. If you're between £5k and £50k and don't yet have a senior PPC specialist in-house, a specialist B2B agency will almost always outperform the alternatives. If you're beyond that and have the marketing infrastructure to support a team, building in-house makes sense, ideally with an agency partner for strategic input.
The model should serve the business. When it stops doing that, change it.
Thinking through your PPC setup? At Lever Digital, we work with B2B scale-ups across SaaS and lead generation on a rolling monthly basis, no long-term lock-ins. If you want a straight conversation about whether an agency makes sense for where you are, get in touch.
