B2B lead generation is the work of turning businesses that could buy from you into sales conversations with whoever signs off the purchase. Agencies agree on that much. They part company on the word lead, which can mean anything from a name in a spreadsheet to a deal that closed, and no price makes sense until you know which of those you are paying for.
To see how far apart the meanings sit, we went through a single Google page for b2b lead generation agency on 26 August 2026: the adverts, Google’s AI Overview and the results under them. Below is what that one page sold under one word, what a lead should mean for your business, and how to check an agency’s meaning before you sign.
What Is B2B Lead Generation?
Google’s own answer, in the AI Overview on that page, called an agency that does it “an external partner that finds and qualifies potential business clients to fill your sales pipeline”. That is a fair definition, and the word doing the work in it is qualifies.
In practice the job has four parts: deciding which businesses, and which people inside them, are worth reaching; finding them; starting a conversation; and passing the interested ones to whoever sells. The same overview listed the usual channels as “cold email, phone calls (telemarketing), LinkedIn outreach, and content marketing”. The channel matters less than the last step, because that is where a lead becomes something a sales team can use, or does not.
B2B only means the buyer is another business. That changes the job more than the name suggests: the buyer is often several people, the decision can take weeks or months, and the first conversation is rarely the sale.
What Do Agencies Mean by a Lead?
Here is what the adverts and results on that one page offered under the same word, in their own words. We have left the names out, because the point is the range rather than any one firm, and the last column is our reading of what each leaves for you to do.
| What you would receive | In the page’s own words | What is left to you |
|---|---|---|
| A name in a database | “Building clean, verified contact lists”, in the AI Overview; “B2B leads database”, among the searches Google suggested | Finding the person, writing to them and holding the conversation |
| A contact said to fit | “qualified B2B leads that actually convert”, in an advert offering “Pay only when we deliver” | Checking what qualified meant, then starting the talk |
| A prospect screened for budget | “They screen prospects to ensure they have real budget and interest before passing them to your sales team”, in the AI Overview | Booking the meeting and running it |
| A booked meeting | “Sales Qualified Appointment”, in one result; “100-400 yearly appointments”, promised in another | Turning up, and making the sale |
| An opportunity or revenue | “creating qualified opportunities”, in one result; “Leads Judged On Revenue”, in an advert | Less, as long as the definition is written down |
What Should a Lead Mean for Your Business?
Whichever of the five an agency sells, the useful definition is the one you write down together before the first message goes out. A name is cheap, and a closed deal depends on your own sales team, so for most businesses the honest middle is a conversation with the right person that actually takes place.
A written definition worth signing covers four things:
- Which businesses count: the sector, the size and the places you can serve.
- Which people count: the roles that can say yes, or put you in front of someone who can.
- What they must have done: agreed to a call about the problem you solve, not simply replied.
- What happens if they do not turn up: whether a meeting nobody attended counts, and who decides.
How Much Does a B2B Agency Typically Cost?
The same page showed three ways of selling lead generation services, and each rewards something different. One advert offered payment by results: “Pay only when we deliver”. One result said its retainers “start at about £4,000 per month”. Another promised “100-400 yearly appointments”. The searches Google suggested on the page included “Pay per lead UK” and “Commission based lead generation”.
Paying per lead sounds safe, but it puts the definition at the centre of the bill: if a lead is a contact who fits a list, you will be sent plenty of them. A retainer pays for the work rather than the output, so it only works if the agency shows you what it did and what came back. A promised number of appointments is only as good as the word appointment in the contract.
Ours is a fixed monthly fee, from £1,200, and in the first week we agree with you what counts as a qualified meeting. A fixed fee has its own cost: you pay in the months when replies are slow, which is why you should expect a report on what was sent and what came back.
Is Lead Generation the Same as Buying a List?
No, though a list is usually where it starts. A list tells you who might buy. Lead generation is everything after that: checking the list is right, finding the person behind each business, writing to them in a way they will answer, and handling the reply.
Buying a list on its own leaves all of that with you, and lists go out of date as people change jobs. It can still be the right purchase for a team that already has people whose job is outreach. For a team without them, a list tends to become a spreadsheet nobody gets to.
How Do You Check an Agency’s Definition Before You Sign?
Ask these questions before you sign anything, and ask for the answers in writing:
- What exactly will you hand over each month: names, replies, meetings or sales?
- Who decides whether a meeting counts, and when?
- Do you charge when a meeting is booked, or when it takes place?
- Can I see every message before it is sent, and who writes them?
- Who keeps the lists and the conversations if we stop?
- What will the first month produce, and what will it only prepare?