The short answer
A lead funnel for B2B service companies has five stages: awareness, interest, enquiry, conversation and signed deal. What matters is not the number of stages but that no contact gets lost along the way and that each one keeps its source. The source of every enquiry has to travel into the CRM, every enquiry needs a next step with a date, and budget gets judged on signed deals rather than clicks.
In B2B companies I have almost the same conversation in the first few weeks every time. Marketing shows clicks and form submissions, sales says the leads are no good, and the CEO cannot contradict either side because nobody can see the route in between. I saw this at metergrid and at Pinktum, and it rarely has much to do with bad campaigns. Usually what is missing is the connection between the systems.
Where enquiries get lost
The same four places come up again and again:
- Inbox instead of CRM. The form sends an email to info@. Whoever reads it may reply. The contact only reaches the CRM when someone adds it by hand, which often means never.
- No source. The enquiry arrives, but nobody knows whether it came from a Google ad, LinkedIn or a referral. Without that, budget cannot be allocated sensibly.
- No next step. The contact is in the CRM but has no follow-up date. With long B2B decisions, this is the most common reason a good conversation goes nowhere.
- Invisible sales signals. A contact downloads the white paper, visits the pricing page three times and signs up for a webinar. Sales hears nothing about it and calls just as late as everyone else.
The five stages
- Awareness. Search, AI search, LinkedIn, referrals, trade media. For services that need explaining, reach matters less here than whether the right people find you at the right moment.
- Interest. Content that answers a real question: case studies, comparisons, a webinar, a calculator. Not all of it has to sit behind a form. Only what offers genuine value should cost an email address.
- Enquiry. A form with a few targeted fields, or direct meeting booking. A single question such as "What is this about?" or "How big is your team?" often helps sales more than eight mandatory fields.
- Conversation. The enquiry lands in the CRM automatically, with source, owner and follow-up date. Set a fixed response time, for example the same working day, and measure it.
- Signed deal. The CRM status is kept up to date, including lost cases and the reason. Only this data shows which campaign brings revenue and which only brings enquiries.
Tracking across all systems
This does not take a big project. Four building blocks are enough:
- UTM parameters through to the CRM. Every campaign carries clean parameters. The form passes them into hidden fields, and the CRM stores them on the contact. This is the most important single step and the one most often forgotten.
- Events in GA4 and Google Tag Manager. Form submitted, meeting booked, key download. Mark only real conversions as key events, otherwise every week looks like a success.
- Consent Mode. Without consent you cannot measure everything. Plan for gaps and regularly compare the GA4 numbers with the CRM. In the end, the CRM is the truth.
- Feedback to the ad accounts. Google Ads and LinkedIn can take in offline conversions. They then optimise for qualified conversations or signed deals rather than cheap form submissions.
Once that is in place, the question shifts from "What does a click cost?" to "What does a qualified conversation cost, and which channel brings signed deals?". That usually changes the budget split within the first quarter. How to find wasted budget along the way is covered in the article on typical budget drains in ad accounts.
Sales signals without overkill
Lead scoring quickly becomes an end in itself: 40 rules nobody understands and sales does not trust. For most service companies three levels are enough:
- Low. Read an article or subscribed to a newsletter. The contact stays with marketing and receives more content.
- Medium. Several visits, a case study or white paper downloaded, webinar attended. If the company fits, sales gets a heads-up, but no call task yet.
- High. Pricing page, meeting booking, direct question. This goes to sales immediately, with everything known so far.
The handover matters more than the model. Sit down once and write out when a contact belongs to sales, how quickly sales responds and when a contact goes back to marketing. One page is enough. The argument about lead quality usually stops after that, because both sides are talking about the same numbers.
What this delivers in practice
At metergrid we rebuilt the funnel as part of the digital repositioning. The result: 180% more qualified leads at a 40% lower cost per lead. At Pinktum a data-driven performance strategy, optimised pages and AI-assisted SEO came together, and marketing qualified leads rose by 210%.
In both cases the lever was not one brilliant campaign. It was being able to see what worked and deciding on that basis.
Ten questions for your own chain
- Does every form enquiry land in the CRM automatically?
- Does every contact show which source and campaign it came from?
- Does every enquiry have an owner and a next step with a date?
- Do you know your actual response time to new enquiries?
- Are only real conversions marked as key events in GA4?
- Do the enquiry numbers in GA4 and the CRM roughly match, and do you know why they differ?
- Do the ad accounts get feedback on which leads were qualified?
- Is there a written rule for when a contact belongs to sales?
- Are lost cases recorded with a reason?
- Can you say for the last quarter which channel brought how much deal volume?
If you answer yes to fewer than seven questions, repair the chain first and raise the budget afterwards. Otherwise you are just paying for more enquiries that disappear into the same hole.
If you want to think about the funnel beyond marketing, including proposals, invoices and the knowledge from conversations, read on with Company Intelligence. And to see where your website stands today, the free assessment shows you the first gaps.