A funnel takes a lot in at the top and lets a little out at the bottom. That is not how people decide.
In 2020 Google analysed roughly 310,000 purchase scenarios and found no steady narrowing. It found a loop: buyers widen their shortlist, cut it back, and repeat that until they feel certain enough. Google calls the space between trigger and purchase the "messy middle". McKinsey had already declared the linear funnel outdated in 2009.
So why write about the marketing funnel at all? Because the picture is wrong as a description of customer behaviour and useful as a plan for your own work. It tells you which job is unfinished at which stage — not the order in which your buyer will work through them.
One limit belongs with that figure: Google's data comes mostly from consumer purchases. Whether a Swiss SME procurement involving several people follows the same loop has not been measured.
What a marketing funnel actually is
A funnel starts with a large number of possible customers and ends with a small number of real ones. In between the volume drops and the readiness to buy rises.
It describes the route from first contact to enquiry — and beyond that to the customer relationship. In doing so it connects three areas that usually run separately in a small company: marketing, website and sales.
In practice it is one question, repeated per stage. What does someone need here in order to take one more step? Attention needs something different from trust, and trust needs something different from a signature.
The picture is older than the internet
The funnel comes from a time when a salesperson was the main source of information. If you wanted to know something, you had to ask.
Today your prospect researches before you know they exist. They read articles, compare providers, check reviews and form an opinion without you hearing about it.
The funnel is therefore not a process you steer. It is a list of open jobs you can either cover or leave open.
A marketing funnel is not a sales funnel
The two terms get used interchangeably almost everywhere. The difference is exactly where small companies lose the most.
The marketing funnel works on visibility, interest and trust. Its output is a lead — someone who leaves a name.
The sales funnel starts there. It clarifies the need, runs the conversation, writes the proposal and closes.
The handover is the expensive part
A marketing funnel can produce any number of leads. If nobody touches them within a few days, none of them becomes a customer.
The reverse holds too: the best salesperson closes nothing without qualified enquiries arriving. Each half fails on its own.
That is why treating the funnel as a marketing topic does not pay off. It is a shared process, and it needs one named person responsible for the handover.
The five stages and what really happens in each
The usual labels are awareness, consideration, lead generation, conversion and retention. The labels are interchangeable. The jobs behind them are not.
Awareness: being found where people search
At this stage nobody knows you. Visibility comes from search, referrals, social platforms or paid ads.
For a regional business the cheapest route is usually the local one — being found in Zurich, Bern or Lucerne beats a ranking nobody in your area sees. The mechanics are in the article on local SEO for small businesses.
Articles work more slowly and last longer than ads. A well-built piece answers one question and then leads on to a relevant service page, as shown in content marketing for SMEs. The groundwork sits under SEO.
Consideration: the stage you are not present for
Now your prospect compares. They look for references, read reviews and check whether you understand their problem at all.
Gartner has put a number on how little of this you see: B2B buyers spend only around 17 per cent of their decision time with all potential suppliers combined — the rest happens without you. That figure comes from international B2B research, not from a Swiss study.
The consequence is uncomfortable. Whatever argues for you at this stage has to work without you: project examples, results someone can follow, named contacts, clear service descriptions. A contact form on its own loses to the provider who already answered the question.
From visitor to lead: the biggest drop-off
Most of the loss sits between "knows you" and "got in touch". This is where the website decides.
It should do more than explain what you do. It should offer a next step that fits the stage: a contact form, a booking, a proposal request or a guide to download.
The common mistake is one call to action everywhere
Someone who has just started an article is rarely ready for a sales conversation. Someone on a service page often is.
The same button in both places loses the first reader and bores the second. The twelve places where a website wins or loses enquiries are covered in website lead generation; the usual reasons for a standstill in why your website isn't bringing customers.
Campaign landing pages follow their own structure — see landing pages that sell.
A worked example
Take an IT service provider working with Swiss SMEs.
A managing director searches for a fix to a specific problem with their server setup. They find one of the provider's articles and read it through.
At the end of the article there is no sales pitch, but a free IT check. They enter their details and are now a lead.
Over the next two weeks they receive two emails: a project example from a comparable business, and a short note on what such a migration typically costs. Then comes the offer of a no-obligation call.
They book a slot, the need is clarified, a proposal follows.
No single measure won that customer. Visibility, content, website, lead capture, follow-up and sales all had to hold. Remove one link and the chain breaks there — not at the start.
Lead nurturing: in B2B, time is the real opponent
A lead is not a customer. In B2B, weeks or months often pass between first contact and decision.
The reason is rarely indecision. Gartner puts the number of people involved in a complex B2B purchase at six to ten — management, the department, IT, finance. Each brings their own questions and their own objections.
So lead nurturing does not mean staying in touch. It means giving your contact the material to argue your case internally: a project example, a cost picture, an answer to the objection you can already predict.
Automating does not mean everyone gets the same thing
Welcome messages, appointment reminders and follow-ups can be automated. That is worth doing, because this is the first work to slip when things get busy.
The benefit flips the moment nurturing turns into a round-robin mailing. How recurring workflows are built properly is covered under process automation; where the data behind them comes from is in the article on ERP and CRM integration.
Without measurement a funnel is just a drawing
You can only improve a funnel if you can see where people leave. Most small companies measure exactly one number: visitors.
Four numbers are enough to start
- Visitors on a service page — does anyone get there at all?
- Enquiries — how many of them make contact?
- Qualified enquiries — how many fit what you sell?
- Closed deals — how many become customers?
The ratios between those four tell you which stage is stuck. Plenty of visitors and almost no enquiries means the website does not lead anywhere. Plenty of enquiries and few qualified ones means you are attracting the wrong people. Plenty of proposals and few closes means the problem sits in the sales conversation, not in marketing.
Which metrics earn their keep and which only create work is covered in Google Analytics 4 for SMEs.
Conversion beats extra traffic
More visitors do not automatically mean more customers. That is the most expensive confusion in online marketing.
An example with round numbers: 1,000 visitors on a landing page, 30 enquiries — that is 3 per cent. Improve the same page to 50 enquiries and it is 5 per cent.
The business has 20 more enquiries without buying a single extra visitor. Through paid channels the same increase would have been a budget decision.
Headlines, the offer itself, form length, trust elements and load time can all be improved. Which of those moves first is covered in high-converting websites, and for B2B enquiries specifically in B2B lead generation.
If you run paid channels alongside, work the budget backwards from customer value — the logic is in Google Ads costs in Switzerland.
The funnel does not end at the order
A satisfied customer buys again, takes on additional services, leaves a review or recommends you.
For a small company that is often the stronger lever. An existing relationship costs no visibility and no cost per click.
The funnel becomes a loop: attention creates leads, leads become customers, customers create attention again. This is where the funnel picture fits worst — and does the most damage if taken literally.
What to do first
Not everything at once. The order matters, because each step is what makes the next one measurable.
1. Collect the four numbers
Before any measure. Without them you are optimising a guess.
2. Find the weakest step
Not the one that is most fun to work on. The one with the steepest drop.
3. Change something there specifically
One change, then measure. Two at once and you will not know afterwards which one worked.
4. Define the handover to sales
Who follows up, within what window, with what opening line. That is not a software question.
5. Only then buy more traffic
A funnel that returns nothing at 100 visitors returns nothing at 1,000 — just at a higher price.
Conclusion: a funnel makes new business predictable, not automatic
A marketing funnel for SMEs is neither a diagram nor a tool. It is the decision to stop judging marketing by reach and start judging it by where prospects drop out.
The model describes customer behaviour poorly — the loop from Google's research fits better. As a working plan it remains the most useful picture available, because it forces you to name and measure each stage separately.
For Swiss SMEs that mostly means fewer isolated measures and more connection between them. How those layers fit together is described under ALPENIQ Growth; the method behind it under ALPENIQ ASCENT. What a website capable of carrying this actually costs is in website prices in Switzerland.
Frequently asked questions
What is a marketing funnel in simple terms?
A marketing funnel describes the route from first contact to customer in stages: attention, comparison, enquiry, close, retention. It works as a plan — it tells you which job is unfinished at which stage.
What is the difference between a marketing funnel and a sales funnel?
The marketing funnel runs from visibility to lead. The sales funnel starts at the lead and ends at the close. The handover between them is where small companies lose the most.
How do I build a sales funnel for a small business?
Not with software, but with four numbers: visitors on the service page, enquiries, qualified enquiries, closed deals. Work on the step with the steepest drop first. Extra traffic is only worth buying afterwards.
How long does a funnel take to produce results?
It depends on the channel. Paid ads return data in days, organic visibility in months. In B2B the decision cycle adds to that: Gartner counts six to ten people involved in a complex purchase, and each of them needs their own answers.
Does an SME need marketing automation software?
Rarely at the start. A defined handover to sales and a website that offers the right next step per stage matter more. Automation pays off once a workflow recurs often enough that it gets left undone by hand.
Is the funnel model still valid?
As a description of customer behaviour, only partly. In 2020 Google found a loop of exploration and evaluation across roughly 310,000 purchase scenarios rather than a steady narrowing. As a plan for your own work it holds up, because it separates the jobs stage by stage.