Online advertising for B2B: which channels work when

Online advertising is the fastest way for a B2B company to become visible to the people who are already searching for your solution. But every channel works differently, and not every channel fits your goal or your sales cycle. In this article we line up the most important channels, along with the honest question: when does advertising truly pay off, and when are you better off spending your money elsewhere?

Tip: calculate your cost per lead with our free budget calculator.

What is online advertising exactly?

Online advertising means you pay to show your message online to a specific audience, at the right moment in their search. You usually pay per click or per thousand impressions, hence the term PPC (pay per click).

The big advantage for B2B: you do not have to wait months for results like with SEO. Switch on a campaign and you get traffic today. The downside: as soon as you stop paying, the traffic stops. Online advertising is therefore an accelerator, not a foundation that keeps paying off.

Advertising on Google: search and visibility

Advertising on Google is the logical first step for most B2B companies. Someone searching for “accounting software for SMEs” or “industrial cleaning Antwerp” has a clear intent. You capture demand that already exists.

Google works through SEA (search engine advertising): you bid on search terms and appear at the top of the results. There are three campaign types that matter for B2B.

Search ads: capturing intent

Text ads that appear on an active search query, as Google describes in its guide on search campaigns. Someone searching for “accounting software SME” is already in the market, so this is usually the best first euro for B2B. In practice we almost always start here: measurable, quick to adjust. The most common mistake is matching too broadly, so you pay for searches that never become a customer. Start narrow, with search terms that show buyer intent, and only broaden once the cost per lead is right.

Performance Max: automation with a downside

Performance Max places your ads automatically across Search, Display, YouTube, Gmail and Maps, driven by Google’s algorithm. It can work once you have enough conversion data to feed the model, but you give up a lot of control and insight: it is harder to see which search term produced the lead. In practice we see B2B accounts that lean on it too early and lose budget to irrelevant traffic. Start with Search and only switch over with a solid conversion base. Read when Performance Max does pay off.

Display and YouTube: reach, no intent

Visual ads to build brand awareness. Lower intent, so rarely your first channel, but strong for the top of your funnel and as fuel for remarketing. The mistake: judging display on direct leads, while the value lies in reach and repetition. With that repetition, watch out for ad fatigue: if your audience sees the same ad too often, returns drop and the cost per click rises.

Want to go deeper on the search side? Then read what SEA is and how it differs from organic results.

LinkedIn: advertising by role and company

For B2B, LinkedIn is often the only channel where you can truly target by job title, sector and company size. That is worth gold when you want to reach a specific decision-maker who is not actively searching yet.

The downside: LinkedIn is more expensive per click than Google. It mainly pays off when your deal value is high enough to earn that cost back. If you sell a product of a few hundred euros a year, the bill adds up fast. If you sell projects worth tens of thousands of euros, LinkedIn is often a no-brainer. In practice we rarely use LinkedIn for direct sales and mostly to get content in front of the right job titles, after which remarketing and Search finish the job.

Meta and social ads: cheap reach, weak targeting

Meta (Facebook and Instagram) is cheaper per impression than LinkedIn, but you cannot target by job title. For most pure B2B models that is a limitation. It can work for B2B with a broad audience, for local service providers, or as a remarketing channel to bring visitors back cheaply. Do not count on cold leads with high intent: the strength lies in repeated, affordable reach.

Which channel do you choose when?

There is no universally best channel. It depends on where your audience is and what your sales cycle looks like:

• Short cycle, clear demand? Start with Google Search. You capture intent and quickly measure whether it works.
• Niche decision-maker who is not actively searching? LinkedIn to reach them by role.
• Building awareness in a new market? Display, YouTube or social ads for reach, then remarketing.
• Visitors who already came by? Remarketing to bring them back the moment they are ready.

You can also read that choice off your funnel: the warmer the intent, the more targeted and narrow the channel that fits.

For an overview, the strengths per channel and when to use it:

Channel	Strength	When to use
Google Search	High intent, quickly measurable	Capture existing demand, short cycle
Performance Max	Automatic reach across Google	Only with solid conversion data
LinkedIn Ads	Targeting by role and company	Niche decision-maker, high deal value
Meta / social	Cheap, broad reach	Broad audience or remarketing
Display / YouTube	Brand awareness, top of funnel	New market, building awareness
Remarketing	Bringing warm visitors back	After every channel that brought traffic

The art is in the combination, not in one magic channel. We always first look at which channel earns your money back fastest and build out from there. For the trade-off between paid and organic traffic, our explanation of SEO or Google Ads helps.

What online advertising costs (and returns)

The question is never “what does a click cost?” but “what does a customer cost?”. An expensive click that converts is cheaper than a cheap click that leads nowhere. That is why we steer on cost per lead and per customer, not on impressions or clickthrough figures that look nice in a report but earn nothing. What a click truly costs depends on your market and competition; we go deeper into it in what Google Ads costs.

A concrete example: for Facilicom we achieved 25% media savings by optimizing the quality score of their Google Ads. The same result for less budget, simply by working smarter instead of bidding more.

When you are better off not advertising

We will say it honestly: online advertising is not always the smartest first move. It does not pay off if:

• Your website does not convert yet. Traffic to a weak landing page is throwing money away. Fix your conversion first.
• Your offer is not sharp yet. No channel saves a message that does not land.
• Your deal value is too low. With some B2B models the click costs are simply higher than what a customer brings in.

In those cases we would rather steer you than burn a budget. First the foundations, then the accelerator. If your ad sends people to a page that does not convince, first read how to make paid traffic to a landing page pay off.

Advertising together with SEO

Paid and organic are not competitors but two speeds of the same goal. Ads deliver traffic today, SEO builds a foundation that keeps paying off even when your budget stops. In practice we use ads to quickly learn which search terms produce leads, and feed those insights back into the B2B PPC strategy and the content choices for SEO. That way your budget pays off twice. The common mistake is treating both as separate silos, so you pay tuition twice for the same insights.

Common mistakes in online advertising

The waste rarely sits in the channel and usually in the execution. The mistakes we see most often:

• Steering on the wrong figures. Clicks and impressions say nothing about revenue. Measure conversions after going live and calculate through to cost per customer.
• Advertising without conversion tracking. Without measurement you optimize blind. Set up tracking before you spend the first euro.
• Scaling too early. Raising budget on a campaign that is not yet proven multiplies your loss.
• Starting every channel at once. Five channels with a small budget teach you nothing. Prove one, scale it, then add more.

Frequently asked questions

What does online advertising cost for B2B?

There is no fixed amount: the click price depends on your market, competition and channel. More important than the starting budget is your cost per lead and per customer. Reckon with a test budget large enough to produce reliable data within a few weeks, and only scale up once the cost per customer is right. Our budget calculator gives a first ballpark figure.

Google Ads or LinkedIn Ads for B2B?

Start with Google Search if demand for your solution already exists: you capture active intent and measure quickly. Choose LinkedIn if you want to reach a decision-maker who is not searching yet and your deal value is high enough to earn back the more expensive click. Often the combination is strongest: LinkedIn for reach, Search and remarketing to capture the demand. How such a multichannel approach delivers revenue in practice, you can see in our case on the multichannel e-commerce activation for A.F.Vandevorst.

How quickly does online advertising deliver results?

Faster than SEO: a search campaign can deliver traffic within days and the first leads within weeks. But fast traffic is not the same as fast return. Reckon on a few weeks to learn which search terms convert before you scale up with confidence. If you are looking for the official rules per campaign type, the Google Ads Help is the primary source.

Ready to advertise online smartly?

Tell us your goal and your situation, and we will honestly tell you which channel produces customers fastest for you (and which you are better off skipping).

We are a small team, so we move fast and steer on revenue instead of vanity figures. Schedule your free intake and within 24 hours you will hear where your opportunities lie.